76bcd8154c
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36006 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2530 lines
65 KiB
C++
2530 lines
65 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: richtext/richeditctrl.cpp
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// Purpose: A rich edit control
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// Author: Julian Smart
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// Modified by:
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// Created: 2005-09-30
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/image.h"
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#if wxUSE_RICHTEXT
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#include "wx/textfile.h"
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#include "wx/ffile.h"
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#include "wx/settings.h"
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#include "wx/filename.h"
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#include "wx/dcbuffer.h"
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#include "wx/richtext/richtextctrl.h"
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#include "wx/arrimpl.cpp"
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_ITEM_SELECTED)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_ITEM_DESELECTED)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_LEFT_CLICK)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_MIDDLE_CLICK)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_RIGHT_CLICK)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_LEFT_DCLICK)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_RETURN)
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#if wxRICHTEXT_DERIVES_FROM_TEXTCTRLBASE
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IMPLEMENT_CLASS( wxRichTextCtrl, wxControl )
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#else
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IMPLEMENT_CLASS( wxRichTextCtrl, wxScrolledWindow )
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#endif
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IMPLEMENT_CLASS( wxRichTextEvent, wxNotifyEvent )
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#if wxRICHTEXT_DERIVES_FROM_TEXTCTRLBASE
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BEGIN_EVENT_TABLE( wxRichTextCtrl, wxControl )
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#else
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BEGIN_EVENT_TABLE( wxRichTextCtrl, wxScrolledWindow )
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#endif
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EVT_PAINT(wxRichTextCtrl::OnPaint)
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EVT_ERASE_BACKGROUND(wxRichTextCtrl::OnEraseBackground)
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EVT_IDLE(wxRichTextCtrl::OnIdle)
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EVT_SCROLLWIN(wxRichTextCtrl::OnScroll)
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EVT_LEFT_DOWN(wxRichTextCtrl::OnLeftClick)
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EVT_MOTION(wxRichTextCtrl::OnMoveMouse)
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EVT_LEFT_UP(wxRichTextCtrl::OnLeftUp)
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EVT_RIGHT_DOWN(wxRichTextCtrl::OnRightClick)
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EVT_MIDDLE_DOWN(wxRichTextCtrl::OnMiddleClick)
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EVT_LEFT_DCLICK(wxRichTextCtrl::OnLeftDClick)
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EVT_CHAR(wxRichTextCtrl::OnChar)
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EVT_SIZE(wxRichTextCtrl::OnSize)
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EVT_SET_FOCUS(wxRichTextCtrl::OnSetFocus)
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EVT_KILL_FOCUS(wxRichTextCtrl::OnKillFocus)
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EVT_CONTEXT_MENU(wxRichTextCtrl::OnContextMenu)
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EVT_MENU(wxID_UNDO, wxRichTextCtrl::OnUndo)
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EVT_UPDATE_UI(wxID_UNDO, wxRichTextCtrl::OnUpdateUndo)
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EVT_MENU(wxID_REDO, wxRichTextCtrl::OnRedo)
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EVT_UPDATE_UI(wxID_REDO, wxRichTextCtrl::OnUpdateRedo)
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EVT_MENU(wxID_COPY, wxRichTextCtrl::OnCopy)
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EVT_UPDATE_UI(wxID_COPY, wxRichTextCtrl::OnUpdateCopy)
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EVT_MENU(wxID_PASTE, wxRichTextCtrl::OnPaste)
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EVT_UPDATE_UI(wxID_PASTE, wxRichTextCtrl::OnUpdatePaste)
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EVT_MENU(wxID_CUT, wxRichTextCtrl::OnCut)
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EVT_UPDATE_UI(wxID_CUT, wxRichTextCtrl::OnUpdateCut)
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EVT_MENU(wxID_CLEAR, wxRichTextCtrl::OnClear)
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EVT_UPDATE_UI(wxID_CLEAR, wxRichTextCtrl::OnUpdateClear)
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EVT_MENU(wxID_SELECTALL, wxRichTextCtrl::OnSelectAll)
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EVT_UPDATE_UI(wxID_SELECTALL, wxRichTextCtrl::OnUpdateSelectAll)
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END_EVENT_TABLE()
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/*!
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* wxRichTextCtrl
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*/
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wxRichTextCtrl::wxRichTextCtrl()
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#if wxRICHTEXT_DERIVES_FROM_TEXTCTRLBASE
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: wxScrollHelper(this)
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#endif
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{
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Init();
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}
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wxRichTextCtrl::wxRichTextCtrl( wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style)
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#if wxRICHTEXT_DERIVES_FROM_TEXTCTRLBASE
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: wxScrollHelper(this)
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#endif
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{
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Init();
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Create(parent, id, pos, size, style);
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}
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/// Creation
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bool wxRichTextCtrl::Create( wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style)
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{
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#if wxRICHTEXT_DERIVES_FROM_TEXTCTRLBASE
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if (!wxTextCtrlBase::Create(parent, id, pos, size, style|wxFULL_REPAINT_ON_RESIZE
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))
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return false;
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#else
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if (!wxScrolledWindow::Create(parent, id, pos, size, style|wxFULL_REPAINT_ON_RESIZE
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))
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return false;
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#endif
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if (!GetFont().Ok())
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{
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SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
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}
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GetBuffer().SetRichTextCtrl(this);
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wxTextAttrEx attributes;
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attributes.SetFont(GetFont());
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attributes.SetTextColour(*wxBLACK);
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attributes.SetBackgroundColour(*wxWHITE);
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attributes.SetAlignment(wxTEXT_ALIGNMENT_LEFT);
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attributes.SetFlags(wxTEXT_ATTR_ALL);
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SetDefaultStyle(attributes);
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SetBasicStyle(attributes);
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SetBackgroundColour(*wxWHITE);
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SetBackgroundStyle(wxBG_STYLE_CUSTOM);
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// Tell the sizers to use the given or best size
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SetBestFittingSize(size);
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// Create a buffer
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RecreateBuffer(size);
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SetCursor(wxCursor(wxCURSOR_IBEAM));
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return true;
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}
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wxRichTextCtrl::~wxRichTextCtrl()
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{
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delete m_contextMenu;
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}
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/// Member initialisation
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void wxRichTextCtrl::Init()
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{
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m_freezeCount = 0;
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m_contextMenu = NULL;
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m_caret = NULL;
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m_caretPosition = -1;
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m_selectionRange.SetRange(-2, -2);
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m_selectionAnchor = -2;
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m_editable = true;
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m_caretAtLineStart = false;
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m_dragging = false;
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m_fullLayoutRequired = false;
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m_fullLayoutTime = 0;
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m_fullLayoutSavedPosition = 0;
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m_delayedLayoutThreshold = wxRICHTEXT_DEFAULT_DELAYED_LAYOUT_THRESHOLD;
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}
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/// Call Freeze to prevent refresh
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void wxRichTextCtrl::Freeze()
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{
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m_freezeCount ++;
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}
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/// Call Thaw to refresh
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void wxRichTextCtrl::Thaw(bool refresh)
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{
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m_freezeCount --;
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if (m_freezeCount == 0 && refresh)
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{
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SetupScrollbars();
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Refresh(false);
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}
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}
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/// Clear all text
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void wxRichTextCtrl::Clear()
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{
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m_buffer.Reset();
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m_buffer.SetDirty(true);
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m_caretPosition = -1;
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m_caretAtLineStart = false;
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m_selectionRange.SetRange(-2, -2);
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if (m_freezeCount == 0)
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{
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SetupScrollbars();
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Refresh(false);
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}
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SendUpdateEvent();
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}
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/// Painting
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void wxRichTextCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
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{
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if (GetCaret())
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GetCaret()->Hide();
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{
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wxBufferedPaintDC dc(this, m_bufferBitmap);
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//wxLogDebug(wxT("OnPaint"));
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PrepareDC(dc);
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if (m_freezeCount > 0)
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return;
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dc.SetFont(GetFont());
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// Paint the background
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PaintBackground(dc);
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wxRegion dirtyRegion = GetUpdateRegion();
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wxRect drawingArea(GetLogicalPoint(wxPoint(0, 0)), GetClientSize());
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wxRect availableSpace(GetClientSize());
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if (GetBuffer().GetDirty())
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{
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GetBuffer().Layout(dc, availableSpace, wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT);
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GetBuffer().SetDirty(false);
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SetupScrollbars();
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}
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GetBuffer().Draw(dc, GetBuffer().GetRange(), GetSelectionRange(), drawingArea, 0 /* descent */, 0 /* flags */);
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}
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if (GetCaret())
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GetCaret()->Show();
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PositionCaret();
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}
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// Empty implementation, to prevent flicker
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void wxRichTextCtrl::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
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{
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}
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void wxRichTextCtrl::OnSetFocus(wxFocusEvent& WXUNUSED(event))
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{
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wxCaret* caret = new wxCaret(this, wxRICHTEXT_DEFAULT_CARET_WIDTH, 16);
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SetCaret(caret);
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caret->Show();
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PositionCaret();
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if (!IsFrozen())
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Refresh(false);
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}
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void wxRichTextCtrl::OnKillFocus(wxFocusEvent& WXUNUSED(event))
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{
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SetCaret(NULL);
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if (!IsFrozen())
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Refresh(false);
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}
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/// Left-click
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void wxRichTextCtrl::OnLeftClick(wxMouseEvent& event)
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{
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SetFocus();
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wxClientDC dc(this);
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PrepareDC(dc);
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dc.SetFont(GetFont());
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long position = 0;
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int hit = GetBuffer().HitTest(dc, event.GetLogicalPosition(dc), position);
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if (hit != wxRICHTEXT_HITTEST_NONE)
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{
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m_dragStart = event.GetLogicalPosition(dc);
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m_dragging = true;
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CaptureMouse();
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SelectNone();
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bool caretAtLineStart = false;
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if (hit & wxRICHTEXT_HITTEST_BEFORE)
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{
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// If we're at the start of a line (but not first in para)
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// then we should keep the caret showing at the start of the line
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// by showing the m_caretAtLineStart flag.
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wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
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wxRichTextLine* line = GetBuffer().GetLineAtPosition(position);
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if (line && para && line->GetAbsoluteRange().GetStart() == position && para->GetRange().GetStart() != position)
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caretAtLineStart = true;
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position --;
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}
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MoveCaret(position, caretAtLineStart);
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SetDefaultStyleToCursorStyle();
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#if 0
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wxWindow* p = GetParent();
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while (p && !p->IsKindOf(CLASSINFO(wxFrame)))
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p = p->GetParent();
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wxFrame* frame = wxDynamicCast(p, wxFrame);
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if (frame)
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{
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wxString msg = wxString::Format(wxT("Found position %ld"), position);
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frame->SetStatusText(msg, 1);
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}
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#endif
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}
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event.Skip();
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}
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/// Left-up
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void wxRichTextCtrl::OnLeftUp(wxMouseEvent& WXUNUSED(event))
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{
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if (m_dragging)
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{
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m_dragging = false;
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if (GetCapture() == this)
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ReleaseMouse();
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}
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}
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/// Left-click
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void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
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{
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if (!event.Dragging())
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{
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event.Skip();
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return;
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}
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wxClientDC dc(this);
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PrepareDC(dc);
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dc.SetFont(GetFont());
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long position = 0;
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wxPoint logicalPt = event.GetLogicalPosition(dc);
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int hit = GetBuffer().HitTest(dc, logicalPt, position);
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if (m_dragging && hit != wxRICHTEXT_HITTEST_NONE)
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{
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// TODO: test closeness
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bool caretAtLineStart = false;
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if (hit & wxRICHTEXT_HITTEST_BEFORE)
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{
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// If we're at the start of a line (but not first in para)
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// then we should keep the caret showing at the start of the line
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// by showing the m_caretAtLineStart flag.
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wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
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wxRichTextLine* line = GetBuffer().GetLineAtPosition(position);
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if (line && para && line->GetAbsoluteRange().GetStart() == position && para->GetRange().GetStart() != position)
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caretAtLineStart = true;
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position --;
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}
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if (m_caretPosition != position)
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{
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bool extendSel = ExtendSelection(m_caretPosition, position, wxRICHTEXT_SHIFT_DOWN);
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MoveCaret(position, caretAtLineStart);
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SetDefaultStyleToCursorStyle();
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if (extendSel)
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Refresh(false);
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}
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}
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}
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/// Right-click
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void wxRichTextCtrl::OnRightClick(wxMouseEvent& event)
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{
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SetFocus();
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event.Skip();
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}
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/// Left-double-click
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void wxRichTextCtrl::OnLeftDClick(wxMouseEvent& event)
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{
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event.Skip();
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}
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/// Middle-click
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void wxRichTextCtrl::OnMiddleClick(wxMouseEvent& event)
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{
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event.Skip();
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}
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/// Key press
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void wxRichTextCtrl::OnChar(wxKeyEvent& event)
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{
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int flags = 0;
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if (event.ControlDown())
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flags |= wxRICHTEXT_CTRL_DOWN;
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if (event.ShiftDown())
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flags |= wxRICHTEXT_SHIFT_DOWN;
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if (event.AltDown())
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flags |= wxRICHTEXT_ALT_DOWN;
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if (event.GetKeyCode() == WXK_LEFT ||
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event.GetKeyCode() == WXK_RIGHT ||
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event.GetKeyCode() == WXK_UP ||
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event.GetKeyCode() == WXK_DOWN ||
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event.GetKeyCode() == WXK_HOME ||
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event.GetKeyCode() == WXK_PAGEUP ||
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event.GetKeyCode() == WXK_PAGEDOWN ||
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event.GetKeyCode() == WXK_PRIOR ||
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event.GetKeyCode() == WXK_NEXT ||
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event.GetKeyCode() == WXK_END)
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{
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Navigate(event.GetKeyCode(), flags);
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}
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else if (event.GetKeyCode() == WXK_RETURN)
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{
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BeginBatchUndo(_("Insert Text"));
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long newPos = m_caretPosition;
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DeleteSelectedContent(& newPos);
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GetBuffer().InsertNewlineWithUndo(newPos+1, this);
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wxRichTextEvent cmdEvent(
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wxEVT_COMMAND_RICHTEXT_RETURN,
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GetId());
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cmdEvent.SetEventObject(this);
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cmdEvent.SetFlags(flags);
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GetEventHandler()->ProcessEvent(cmdEvent);
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EndBatchUndo();
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SetDefaultStyleToCursorStyle();
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}
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else if (event.GetKeyCode() == WXK_BACK)
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{
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BeginBatchUndo(_("Delete Text"));
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// Submit range in character positions, which are greater than caret positions,
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// so subtract 1 for deleted character and add 1 for conversion to character position.
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if (m_caretPosition > -1 && !HasSelection())
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{
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GetBuffer().DeleteRangeWithUndo(wxRichTextRange(m_caretPosition, m_caretPosition),
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m_caretPosition, // Current caret position
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m_caretPosition-1, // New caret position
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this);
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}
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else
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DeleteSelectedContent();
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EndBatchUndo();
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// Shouldn't this be in Do()?
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if (GetLastPosition() == -1)
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{
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GetBuffer().Reset();
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m_caretPosition = -1;
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PositionCaret();
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SetDefaultStyleToCursorStyle();
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}
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}
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else if (event.GetKeyCode() == WXK_DELETE)
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{
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BeginBatchUndo(_("Delete Text"));
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// Submit range in character positions, which are greater than caret positions,
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if (m_caretPosition < GetBuffer().GetRange().GetEnd()+1 && !HasSelection())
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{
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GetBuffer().DeleteRangeWithUndo(wxRichTextRange(m_caretPosition+1, m_caretPosition+1),
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m_caretPosition, // Current caret position
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m_caretPosition+1, // New caret position
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this);
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}
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else
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DeleteSelectedContent();
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EndBatchUndo();
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// Shouldn't this be in Do()?
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if (GetLastPosition() == -1)
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{
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GetBuffer().Reset();
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m_caretPosition = -1;
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PositionCaret();
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SetDefaultStyleToCursorStyle();
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}
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}
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else
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{
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BeginBatchUndo(_("Insert Text"));
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long newPos = m_caretPosition;
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DeleteSelectedContent(& newPos);
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wxString str = (wxChar) event.GetKeyCode();
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GetBuffer().InsertTextWithUndo(newPos+1, str, this);
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EndBatchUndo();
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SetDefaultStyleToCursorStyle();
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}
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#if 0
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else
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event.Skip();
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#endif
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}
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/// Delete content if there is a selection, e.g. when pressing a key.
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bool wxRichTextCtrl::DeleteSelectedContent(long* newPos)
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{
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if (HasSelection())
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{
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long pos = m_selectionRange.GetStart();
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GetBuffer().DeleteRangeWithUndo(m_selectionRange,
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m_caretPosition, // Current caret position
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pos, // New caret position
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this);
|
|
m_selectionRange.SetRange(-2, -2);
|
|
|
|
if (newPos)
|
|
*newPos = pos-1;
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/// Keyboard navigation
|
|
|
|
/*
|
|
|
|
Left: left one character
|
|
Right: right one character
|
|
Up: up one line
|
|
Down: down one line
|
|
Ctrl-Left: left one word
|
|
Ctrl-Right: right one word
|
|
Ctrl-Up: previous paragraph start
|
|
Ctrl-Down: next start of paragraph
|
|
Home: start of line
|
|
End: end of line
|
|
Ctrl-Home: start of document
|
|
Ctrl-End: end of document
|
|
Page-Up: Up a screen
|
|
Page-Down: Down a screen
|
|
|
|
Maybe:
|
|
|
|
Ctrl-Alt-PgUp: Start of window
|
|
Ctrl-Alt-PgDn: End of window
|
|
F8: Start selection mode
|
|
Esc: End selection mode
|
|
|
|
Adding Shift does the above but starts/extends selection.
|
|
|
|
|
|
*/
|
|
|
|
bool wxRichTextCtrl::Navigate(int keyCode, int flags)
|
|
{
|
|
bool success = false;
|
|
Freeze();
|
|
|
|
if (keyCode == WXK_RIGHT)
|
|
{
|
|
if (flags & wxRICHTEXT_CTRL_DOWN)
|
|
success = WordRight(1, flags);
|
|
else
|
|
success = MoveRight(1, flags);
|
|
}
|
|
else if (keyCode == WXK_LEFT)
|
|
{
|
|
if (flags & wxRICHTEXT_CTRL_DOWN)
|
|
success = WordLeft(1, flags);
|
|
else
|
|
success = MoveLeft(1, flags);
|
|
}
|
|
else if (keyCode == WXK_UP)
|
|
{
|
|
if (flags & wxRICHTEXT_CTRL_DOWN)
|
|
success = MoveToParagraphStart(flags);
|
|
else
|
|
success = MoveUp(1, flags);
|
|
}
|
|
else if (keyCode == WXK_DOWN)
|
|
{
|
|
if (flags & wxRICHTEXT_CTRL_DOWN)
|
|
success = MoveToParagraphEnd(flags);
|
|
else
|
|
success = MoveDown(1, flags);
|
|
}
|
|
else if (keyCode == WXK_PAGEUP || keyCode == WXK_PRIOR)
|
|
{
|
|
success = PageUp(1, flags);
|
|
}
|
|
else if (keyCode == WXK_PAGEDOWN || keyCode == WXK_NEXT)
|
|
{
|
|
success = PageDown(1, flags);
|
|
}
|
|
else if (keyCode == WXK_HOME)
|
|
{
|
|
if (flags & wxRICHTEXT_CTRL_DOWN)
|
|
success = MoveHome(flags);
|
|
else
|
|
success = MoveToLineStart(flags);
|
|
}
|
|
else if (keyCode == WXK_END)
|
|
{
|
|
if (flags & wxRICHTEXT_CTRL_DOWN)
|
|
success = MoveEnd(flags);
|
|
else
|
|
success = MoveToLineEnd(flags);
|
|
}
|
|
|
|
if (success)
|
|
{
|
|
ScrollIntoView(m_caretPosition, keyCode);
|
|
SetDefaultStyleToCursorStyle();
|
|
}
|
|
|
|
Thaw(false);
|
|
|
|
return success;
|
|
}
|
|
|
|
/// Extend the selection. Selections are in caret positions.
|
|
bool wxRichTextCtrl::ExtendSelection(long oldPos, long newPos, int flags)
|
|
{
|
|
if (flags & wxRICHTEXT_SHIFT_DOWN)
|
|
{
|
|
// If not currently selecting, start selecting
|
|
if (m_selectionRange.GetStart() == -2)
|
|
{
|
|
m_selectionAnchor = oldPos;
|
|
|
|
if (oldPos > newPos)
|
|
m_selectionRange.SetRange(newPos+1, oldPos);
|
|
else
|
|
m_selectionRange.SetRange(oldPos+1, newPos);
|
|
}
|
|
else
|
|
{
|
|
// Always ensure that the selection range start is greater than
|
|
// the end.
|
|
if (newPos > m_selectionAnchor)
|
|
m_selectionRange.SetRange(m_selectionAnchor+1, newPos);
|
|
else
|
|
m_selectionRange.SetRange(newPos+1, m_selectionAnchor);
|
|
}
|
|
|
|
if (m_selectionRange.GetStart() > m_selectionRange.GetEnd())
|
|
{
|
|
wxLogDebug(wxT("Strange selection range"));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/// Scroll into view, returning true if we scrolled.
|
|
/// This takes a _caret_ position.
|
|
bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
|
|
{
|
|
wxRichTextLine* line = GetVisibleLineForCaretPosition(position);
|
|
|
|
if (!line)
|
|
return false;
|
|
|
|
int ppuX, ppuY;
|
|
GetScrollPixelsPerUnit(& ppuX, & ppuY);
|
|
|
|
int startX, startY;
|
|
GetViewStart(& startX, & startY);
|
|
startX = 0;
|
|
startY = startY * ppuY;
|
|
|
|
int sx, sy;
|
|
GetVirtualSize(& sx, & sy);
|
|
sx = 0;
|
|
if (ppuY != 0)
|
|
sy = sy/ppuY;
|
|
|
|
wxRect rect = line->GetRect();
|
|
|
|
bool scrolled = false;
|
|
|
|
wxSize clientSize = GetClientSize();
|
|
|
|
// Going down
|
|
if (keyCode == WXK_DOWN || keyCode == WXK_RIGHT || keyCode == WXK_END || keyCode == WXK_NEXT || keyCode == WXK_PAGEDOWN)
|
|
{
|
|
if ((rect.y + rect.height) > (clientSize.y + startY))
|
|
{
|
|
// Make it scroll so this item is at the bottom
|
|
// of the window
|
|
int y = rect.y - (clientSize.y - rect.height);
|
|
y = (int) (0.5 + y/ppuY);
|
|
|
|
if (startY != y)
|
|
{
|
|
SetScrollbars(ppuX, ppuY, sx, sy, 0, y);
|
|
scrolled = true;
|
|
}
|
|
}
|
|
else if (rect.y < startY)
|
|
{
|
|
// Make it scroll so this item is at the top
|
|
// of the window
|
|
int y = rect.y ;
|
|
y = (int) (0.5 + y/ppuY);
|
|
|
|
if (startY != y)
|
|
{
|
|
SetScrollbars(ppuX, ppuY, sx, sy, 0, y);
|
|
scrolled = true;
|
|
}
|
|
}
|
|
}
|
|
// Going up
|
|
else if (keyCode == WXK_UP || keyCode == WXK_LEFT || keyCode == WXK_HOME || keyCode == WXK_PRIOR || keyCode == WXK_PAGEUP)
|
|
{
|
|
if (rect.y < startY)
|
|
{
|
|
// Make it scroll so this item is at the top
|
|
// of the window
|
|
int y = rect.y ;
|
|
y = (int) (0.5 + y/ppuY);
|
|
|
|
if (startY != y)
|
|
{
|
|
SetScrollbars(ppuX, ppuY, sx, sy, 0, y);
|
|
scrolled = true;
|
|
}
|
|
}
|
|
else if ((rect.y + rect.height) > (clientSize.y + startY))
|
|
{
|
|
// Make it scroll so this item is at the bottom
|
|
// of the window
|
|
int y = rect.y - (clientSize.y - rect.height);
|
|
y = (int) (0.5 + y/ppuY);
|
|
|
|
if (startY != y)
|
|
{
|
|
SetScrollbars(ppuX, ppuY, sx, sy, 0, y);
|
|
scrolled = true;
|
|
}
|
|
}
|
|
}
|
|
PositionCaret();
|
|
|
|
return scrolled;
|
|
}
|
|
|
|
/// Is the given position visible on the screen?
|
|
bool wxRichTextCtrl::IsPositionVisible(long pos) const
|
|
{
|
|
wxRichTextLine* line = GetVisibleLineForCaretPosition(pos-1);
|
|
|
|
if (!line)
|
|
return false;
|
|
|
|
int ppuX, ppuY;
|
|
GetScrollPixelsPerUnit(& ppuX, & ppuY);
|
|
|
|
int startX, startY;
|
|
GetViewStart(& startX, & startY);
|
|
startX = 0;
|
|
startY = startY * ppuY;
|
|
|
|
int sx, sy;
|
|
GetVirtualSize(& sx, & sy);
|
|
sx = 0;
|
|
if (ppuY != 0)
|
|
sy = sy/ppuY;
|
|
|
|
wxRect rect = line->GetRect();
|
|
|
|
wxSize clientSize = GetClientSize();
|
|
|
|
return !(((rect.y + rect.height) > (clientSize.y + startY)) || rect.y < startY);
|
|
}
|
|
|
|
void wxRichTextCtrl::SetCaretPosition(long position, bool showAtLineStart)
|
|
{
|
|
m_caretPosition = position;
|
|
m_caretAtLineStart = showAtLineStart;
|
|
}
|
|
|
|
/// Move caret one visual step forward: this may mean setting a flag
|
|
/// and keeping the same position if we're going from the end of one line
|
|
/// to the start of the next, which may be the exact same caret position.
|
|
void wxRichTextCtrl::MoveCaretForward(long oldPosition)
|
|
{
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(oldPosition);
|
|
|
|
// Only do the check if we're not at the end of the paragraph (where things work OK
|
|
// anyway)
|
|
if (para && (oldPosition != para->GetRange().GetEnd() - 1))
|
|
{
|
|
wxRichTextLine* line = GetBuffer().GetLineAtPosition(oldPosition);
|
|
|
|
if (line)
|
|
{
|
|
wxRichTextRange lineRange = line->GetAbsoluteRange();
|
|
|
|
// We're at the end of a line. See whether we need to
|
|
// stay at the same actual caret position but change visual
|
|
// position, or not.
|
|
if (oldPosition == lineRange.GetEnd())
|
|
{
|
|
if (m_caretAtLineStart)
|
|
{
|
|
// We're already at the start of the line, so actually move on now.
|
|
m_caretPosition = oldPosition + 1;
|
|
m_caretAtLineStart = false;
|
|
}
|
|
else
|
|
{
|
|
// We're showing at the end of the line, so keep to
|
|
// the same position but indicate that we're to show
|
|
// at the start of the next line.
|
|
m_caretPosition = oldPosition;
|
|
m_caretAtLineStart = true;
|
|
}
|
|
SetDefaultStyleToCursorStyle();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
m_caretPosition ++;
|
|
SetDefaultStyleToCursorStyle();
|
|
}
|
|
|
|
/// Move caret one visual step backward: this may mean setting a flag
|
|
/// and keeping the same position if we're going from the end of one line
|
|
/// to the start of the next, which may be the exact same caret position.
|
|
void wxRichTextCtrl::MoveCaretBack(long oldPosition)
|
|
{
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(oldPosition);
|
|
|
|
// Only do the check if we're not at the start of the paragraph (where things work OK
|
|
// anyway)
|
|
if (para && (oldPosition != para->GetRange().GetStart()))
|
|
{
|
|
wxRichTextLine* line = GetBuffer().GetLineAtPosition(oldPosition);
|
|
|
|
if (line)
|
|
{
|
|
wxRichTextRange lineRange = line->GetAbsoluteRange();
|
|
|
|
// We're at the start of a line. See whether we need to
|
|
// stay at the same actual caret position but change visual
|
|
// position, or not.
|
|
if (oldPosition == lineRange.GetStart())
|
|
{
|
|
m_caretPosition = oldPosition-1;
|
|
m_caretAtLineStart = true;
|
|
return;
|
|
}
|
|
else if (oldPosition == lineRange.GetEnd())
|
|
{
|
|
if (m_caretAtLineStart)
|
|
{
|
|
// We're at the start of the line, so keep the same caret position
|
|
// but clear the start-of-line flag.
|
|
m_caretPosition = oldPosition;
|
|
m_caretAtLineStart = false;
|
|
}
|
|
else
|
|
{
|
|
// We're showing at the end of the line, so go back
|
|
// to the previous character position.
|
|
m_caretPosition = oldPosition - 1;
|
|
}
|
|
SetDefaultStyleToCursorStyle();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
m_caretPosition --;
|
|
SetDefaultStyleToCursorStyle();
|
|
}
|
|
|
|
/// Move right
|
|
bool wxRichTextCtrl::MoveRight(int noPositions, int flags)
|
|
{
|
|
long endPos = GetBuffer().GetRange().GetEnd();
|
|
|
|
if (m_caretPosition + noPositions < endPos)
|
|
{
|
|
long oldPos = m_caretPosition;
|
|
long newPos = m_caretPosition + noPositions;
|
|
|
|
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
// Determine by looking at oldPos and m_caretPosition whether
|
|
// we moved from the end of a line to the start of the next line, in which case
|
|
// we want to adjust the caret position such that it is positioned at the
|
|
// start of the next line, rather than jumping past the first character of the
|
|
// line.
|
|
if (noPositions == 1 && !extendSel)
|
|
MoveCaretForward(oldPos);
|
|
else
|
|
SetCaretPosition(newPos);
|
|
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/// Move left
|
|
bool wxRichTextCtrl::MoveLeft(int noPositions, int flags)
|
|
{
|
|
long startPos = -1;
|
|
|
|
if (m_caretPosition > startPos - noPositions + 1)
|
|
{
|
|
long oldPos = m_caretPosition;
|
|
long newPos = m_caretPosition - noPositions;
|
|
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
if (noPositions == 1 && !extendSel)
|
|
MoveCaretBack(oldPos);
|
|
else
|
|
SetCaretPosition(newPos);
|
|
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/// Move up
|
|
bool wxRichTextCtrl::MoveUp(int noLines, int flags)
|
|
{
|
|
return MoveDown(- noLines, flags);
|
|
}
|
|
|
|
/// Move up
|
|
bool wxRichTextCtrl::MoveDown(int noLines, int flags)
|
|
{
|
|
if (!GetCaret())
|
|
return false;
|
|
|
|
long lineNumber = GetBuffer().GetVisibleLineNumber(m_caretPosition, true, m_caretAtLineStart);
|
|
wxPoint pt = GetCaret()->GetPosition();
|
|
long newLine = lineNumber + noLines;
|
|
|
|
if (lineNumber != -1)
|
|
{
|
|
if (noLines > 0)
|
|
{
|
|
long lastLine = GetBuffer().GetVisibleLineNumber(GetBuffer().GetRange().GetEnd());
|
|
|
|
if (newLine > lastLine)
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
if (newLine < 0)
|
|
return false;
|
|
}
|
|
}
|
|
|
|
wxRichTextLine* lineObj = GetBuffer().GetLineForVisibleLineNumber(newLine);
|
|
if (lineObj)
|
|
{
|
|
pt.y = lineObj->GetAbsolutePosition().y + 2;
|
|
}
|
|
else
|
|
return false;
|
|
|
|
long newPos = 0;
|
|
wxClientDC dc(this);
|
|
PrepareDC(dc);
|
|
dc.SetFont(GetFont());
|
|
|
|
int hitTest = GetBuffer().HitTest(dc, pt, newPos);
|
|
|
|
if (hitTest != wxRICHTEXT_HITTEST_NONE)
|
|
{
|
|
// If end of previous line, and hitTest is wxRICHTEXT_HITTEST_BEFORE,
|
|
// we want to be at the end of the last line but with m_caretAtLineStart set to true,
|
|
// so we view the caret at the start of the line.
|
|
bool caretLineStart = false;
|
|
if (hitTest == wxRICHTEXT_HITTEST_BEFORE)
|
|
{
|
|
wxRichTextLine* thisLine = GetBuffer().GetLineAtPosition(newPos-1);
|
|
wxRichTextRange lineRange;
|
|
if (thisLine)
|
|
lineRange = thisLine->GetAbsoluteRange();
|
|
|
|
if (thisLine && (newPos-1) == lineRange.GetEnd())
|
|
{
|
|
newPos --;
|
|
caretLineStart = true;
|
|
}
|
|
else
|
|
{
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(newPos);
|
|
if (para && para->GetRange().GetStart() == newPos)
|
|
newPos --;
|
|
}
|
|
}
|
|
|
|
long newSelEnd = newPos;
|
|
|
|
bool extendSel = ExtendSelection(m_caretPosition, newSelEnd, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
SetCaretPosition(newPos, caretLineStart);
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/// Move to the end of the paragraph
|
|
bool wxRichTextCtrl::MoveToParagraphEnd(int flags)
|
|
{
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(m_caretPosition, true);
|
|
if (para)
|
|
{
|
|
long newPos = para->GetRange().GetEnd() - 1;
|
|
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
SetCaretPosition(newPos);
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// Move to the start of the paragraph
|
|
bool wxRichTextCtrl::MoveToParagraphStart(int flags)
|
|
{
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(m_caretPosition, true);
|
|
if (para)
|
|
{
|
|
long newPos = para->GetRange().GetStart() - 1;
|
|
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
SetCaretPosition(newPos);
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// Move to the end of the line
|
|
bool wxRichTextCtrl::MoveToLineEnd(int flags)
|
|
{
|
|
wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
|
|
|
|
if (line)
|
|
{
|
|
wxRichTextRange lineRange = line->GetAbsoluteRange();
|
|
long newPos = lineRange.GetEnd();
|
|
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
SetCaretPosition(newPos);
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// Move to the start of the line
|
|
bool wxRichTextCtrl::MoveToLineStart(int flags)
|
|
{
|
|
wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
|
|
if (line)
|
|
{
|
|
wxRichTextRange lineRange = line->GetAbsoluteRange();
|
|
long newPos = lineRange.GetStart()-1;
|
|
|
|
bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphForLine(line);
|
|
|
|
SetCaretPosition(newPos, para->GetRange().GetStart() != lineRange.GetStart());
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// Move to the start of the buffer
|
|
bool wxRichTextCtrl::MoveHome(int flags)
|
|
{
|
|
if (m_caretPosition != -1)
|
|
{
|
|
bool extendSel = ExtendSelection(m_caretPosition, -1, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
SetCaretPosition(-1);
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/// Move to the end of the buffer
|
|
bool wxRichTextCtrl::MoveEnd(int flags)
|
|
{
|
|
long endPos = GetBuffer().GetRange().GetEnd()-1;
|
|
|
|
if (m_caretPosition != endPos)
|
|
{
|
|
bool extendSel = ExtendSelection(m_caretPosition, endPos, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
SetCaretPosition(endPos);
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/// Move noPages pages up
|
|
bool wxRichTextCtrl::PageUp(int noPages, int flags)
|
|
{
|
|
return PageDown(- noPages, flags);
|
|
}
|
|
|
|
/// Move noPages pages down
|
|
bool wxRichTextCtrl::PageDown(int noPages, int flags)
|
|
{
|
|
// Calculate which line occurs noPages * screen height further down.
|
|
wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
|
|
if (line)
|
|
{
|
|
wxSize clientSize = GetClientSize();
|
|
int newY = line->GetAbsolutePosition().y + noPages*clientSize.y;
|
|
|
|
wxRichTextLine* newLine = GetBuffer().GetLineAtYPosition(newY);
|
|
if (newLine)
|
|
{
|
|
wxRichTextRange lineRange = newLine->GetAbsoluteRange();
|
|
long pos = lineRange.GetStart()-1;
|
|
if (pos != m_caretPosition)
|
|
{
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphForLine(newLine);
|
|
|
|
bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
SetCaretPosition(pos, para->GetRange().GetStart() != lineRange.GetStart());
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// Finds the caret position for the next word
|
|
long wxRichTextCtrl::FindNextWordPosition(int direction) const
|
|
{
|
|
long endPos = GetBuffer().GetRange().GetEnd();
|
|
|
|
if (direction > 0)
|
|
{
|
|
long i = m_caretPosition+1+direction; // +1 for conversion to character pos
|
|
|
|
// First skip current text to space
|
|
while (i < endPos && i > -1)
|
|
{
|
|
// i is in character, not caret positions
|
|
wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
|
|
if (text != wxT(" ") && !text.empty())
|
|
i += direction;
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
while (i < endPos && i > -1)
|
|
{
|
|
// i is in character, not caret positions
|
|
wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
|
|
if (text.empty()) // End of paragraph, or maybe an image
|
|
return wxMax(-1, i - 1);
|
|
else if (text == wxT(" ") || text.empty())
|
|
i += direction;
|
|
else
|
|
{
|
|
// Convert to caret position
|
|
return wxMax(-1, i - 1);
|
|
}
|
|
}
|
|
if (i >= endPos)
|
|
return endPos-1;
|
|
return i-1;
|
|
}
|
|
else
|
|
{
|
|
long i = m_caretPosition;
|
|
|
|
// First skip white space
|
|
while (i < endPos && i > -1)
|
|
{
|
|
// i is in character, not caret positions
|
|
wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
|
|
if (text.empty()) // End of paragraph, or maybe an image
|
|
break;
|
|
else if (text == wxT(" ") || text.empty())
|
|
i += direction;
|
|
else
|
|
break;
|
|
}
|
|
// Next skip current text to space
|
|
while (i < endPos && i > -1)
|
|
{
|
|
// i is in character, not caret positions
|
|
wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
|
|
if (text != wxT(" ") /* && !text.empty() */)
|
|
i += direction;
|
|
else
|
|
{
|
|
return i;
|
|
}
|
|
}
|
|
if (i < -1)
|
|
return -1;
|
|
return i;
|
|
}
|
|
}
|
|
|
|
/// Move n words left
|
|
bool wxRichTextCtrl::WordLeft(int WXUNUSED(n), int flags)
|
|
{
|
|
long pos = FindNextWordPosition(-1);
|
|
if (pos != m_caretPosition)
|
|
{
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos, true);
|
|
|
|
bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
SetCaretPosition(pos, para->GetRange().GetStart() != pos);
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// Move n words right
|
|
bool wxRichTextCtrl::WordRight(int WXUNUSED(n), int flags)
|
|
{
|
|
long pos = FindNextWordPosition(1);
|
|
if (pos != m_caretPosition)
|
|
{
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos, true);
|
|
|
|
bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
|
|
if (!extendSel)
|
|
SelectNone();
|
|
|
|
SetCaretPosition(pos, para->GetRange().GetStart() != pos);
|
|
PositionCaret();
|
|
SetDefaultStyleToCursorStyle();
|
|
|
|
if (extendSel)
|
|
Refresh(false);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// Sizing
|
|
void wxRichTextCtrl::OnSize(wxSizeEvent& event)
|
|
{
|
|
// Only do sizing optimization for large buffers
|
|
if (GetBuffer().GetRange().GetEnd() > m_delayedLayoutThreshold)
|
|
{
|
|
m_fullLayoutRequired = true;
|
|
m_fullLayoutTime = wxGetLocalTimeMillis();
|
|
m_fullLayoutSavedPosition = GetFirstVisiblePosition();
|
|
LayoutContent(true /* onlyVisibleRect */);
|
|
}
|
|
else
|
|
GetBuffer().Invalidate(wxRICHTEXT_ALL);
|
|
|
|
RecreateBuffer();
|
|
|
|
event.Skip();
|
|
}
|
|
|
|
|
|
/// Idle-time processing
|
|
void wxRichTextCtrl::OnIdle(wxIdleEvent& event)
|
|
{
|
|
const int layoutInterval = wxRICHTEXT_DEFAULT_LAYOUT_INTERVAL;
|
|
|
|
if (m_fullLayoutRequired && (wxGetLocalTimeMillis() > (m_fullLayoutTime + layoutInterval)))
|
|
{
|
|
m_fullLayoutRequired = false;
|
|
m_fullLayoutTime = 0;
|
|
GetBuffer().Invalidate(wxRICHTEXT_ALL);
|
|
ShowPosition(m_fullLayoutSavedPosition);
|
|
Refresh(false);
|
|
}
|
|
event.Skip();
|
|
}
|
|
|
|
/// Scrolling
|
|
void wxRichTextCtrl::OnScroll(wxScrollWinEvent& event)
|
|
{
|
|
// Not used
|
|
event.Skip();
|
|
}
|
|
|
|
/// Set up scrollbars, e.g. after a resize
|
|
void wxRichTextCtrl::SetupScrollbars(bool atTop)
|
|
{
|
|
if (m_freezeCount)
|
|
return;
|
|
|
|
if (GetBuffer().IsEmpty())
|
|
{
|
|
SetScrollbars(0, 0, 0, 0, 0, 0);
|
|
return;
|
|
}
|
|
|
|
// TODO: reimplement scrolling so we scroll by line, not by fixed number
|
|
// of pixels. See e.g. wxVScrolledWindow for ideas.
|
|
int pixelsPerUnit = 5; // 10;
|
|
wxSize clientSize = GetClientSize();
|
|
|
|
int maxHeight = GetBuffer().GetCachedSize().y;
|
|
|
|
int unitsY = maxHeight/pixelsPerUnit;
|
|
|
|
int startX = 0, startY = 0;
|
|
if (!atTop)
|
|
GetViewStart(& startX, & startY);
|
|
|
|
int maxPositionX = 0; // wxMax(sz.x - clientSize.x, 0);
|
|
int maxPositionY = (wxMax(maxHeight - clientSize.y, 0))/pixelsPerUnit;
|
|
|
|
// Move to previous scroll position if
|
|
// possible
|
|
SetScrollbars(0, pixelsPerUnit,
|
|
0, unitsY,
|
|
wxMin(maxPositionX, startX), wxMin(maxPositionY, startY));
|
|
}
|
|
|
|
/// Paint the background
|
|
void wxRichTextCtrl::PaintBackground(wxDC& dc)
|
|
{
|
|
wxColour backgroundColour = GetBackgroundColour();
|
|
if (!backgroundColour.Ok())
|
|
backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
|
|
|
|
// Clear the background
|
|
dc.SetBrush(wxBrush(backgroundColour));
|
|
dc.SetPen(*wxTRANSPARENT_PEN);
|
|
wxRect windowRect(GetClientSize());
|
|
windowRect.x -= 2; windowRect.y -= 2;
|
|
windowRect.width += 4; windowRect.height += 4;
|
|
|
|
// We need to shift the rectangle to take into account
|
|
// scrolling. Converting device to logical coordinates.
|
|
CalcUnscrolledPosition(windowRect.x, windowRect.y, & windowRect.x, & windowRect.y);
|
|
dc.DrawRectangle(windowRect);
|
|
}
|
|
|
|
/// Recreate buffer bitmap if necessary
|
|
bool wxRichTextCtrl::RecreateBuffer(const wxSize& size)
|
|
{
|
|
wxSize sz = size;
|
|
if (sz == wxDefaultSize)
|
|
sz = GetClientSize();
|
|
|
|
if (sz.x < 1 || sz.y < 1)
|
|
return false;
|
|
|
|
if (!m_bufferBitmap.Ok() || m_bufferBitmap.GetWidth() < sz.x || m_bufferBitmap.GetHeight() < sz.y)
|
|
m_bufferBitmap = wxBitmap(sz.x, sz.y);
|
|
return m_bufferBitmap.Ok();
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// file IO functions
|
|
// ----------------------------------------------------------------------------
|
|
|
|
bool wxRichTextCtrl::LoadFile(const wxString& filename, int type)
|
|
{
|
|
bool success = GetBuffer().LoadFile(filename, type);
|
|
if (success)
|
|
m_filename = filename;
|
|
|
|
DiscardEdits();
|
|
SetInsertionPoint(0);
|
|
LayoutContent();
|
|
PositionCaret();
|
|
SetupScrollbars(true);
|
|
Refresh(false);
|
|
SendUpdateEvent();
|
|
|
|
if (success)
|
|
return true;
|
|
else
|
|
{
|
|
wxLogError(_("File couldn't be loaded."));
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool wxRichTextCtrl::SaveFile(const wxString& filename, int type)
|
|
{
|
|
wxString filenameToUse = filename.empty() ? m_filename : filename;
|
|
if ( filenameToUse.empty() )
|
|
{
|
|
// what kind of message to give? is it an error or a program bug?
|
|
wxLogDebug(wxT("Can't save textctrl to file without filename."));
|
|
|
|
return false;
|
|
}
|
|
|
|
if (GetBuffer().SaveFile(filenameToUse, type))
|
|
{
|
|
m_filename = filenameToUse;
|
|
|
|
DiscardEdits();
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
wxLogError(_("The text couldn't be saved."));
|
|
|
|
return false;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRichTextCtrl specific functionality
|
|
// ----------------------------------------------------------------------------
|
|
|
|
/// Add a new paragraph of text to the end of the buffer
|
|
wxRichTextRange wxRichTextCtrl::AddParagraph(const wxString& text)
|
|
{
|
|
return GetBuffer().AddParagraph(text);
|
|
}
|
|
|
|
/// Add an image
|
|
wxRichTextRange wxRichTextCtrl::AddImage(const wxImage& image)
|
|
{
|
|
return GetBuffer().AddImage(image);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// selection and ranges
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRichTextCtrl::SelectAll()
|
|
{
|
|
SetSelection(0, GetLastPosition());
|
|
m_selectionAnchor = -1;
|
|
}
|
|
|
|
/// Select none
|
|
void wxRichTextCtrl::SelectNone()
|
|
{
|
|
if (!(GetSelectionRange() == wxRichTextRange(-2, -2)))
|
|
SetSelection(-2, -2);
|
|
m_selectionAnchor = -2;
|
|
}
|
|
|
|
wxString wxRichTextCtrl::GetStringSelection() const
|
|
{
|
|
long from, to;
|
|
GetSelection(&from, &to);
|
|
|
|
return GetRange(from, to);
|
|
}
|
|
|
|
// do the window-specific processing after processing the update event
|
|
void wxRichTextCtrl::DoUpdateWindowUI(wxUpdateUIEvent& event)
|
|
{
|
|
if ( event.GetSetEnabled() )
|
|
Enable(event.GetEnabled());
|
|
|
|
if ( event.GetSetText() )
|
|
{
|
|
if ( event.GetText() != GetValue() )
|
|
SetValue(event.GetText());
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// hit testing
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxTextCtrlHitTestResult
|
|
wxRichTextCtrl::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const
|
|
{
|
|
// implement in terms of the other overload as the native ports typically
|
|
// can get the position and not (x, y) pair directly (although wxUniv
|
|
// directly gets x and y -- and so overrides this method as well)
|
|
long pos;
|
|
wxTextCtrlHitTestResult rc = HitTest(pt, &pos);
|
|
|
|
if ( rc != wxTE_HT_UNKNOWN )
|
|
{
|
|
PositionToXY(pos, x, y);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
wxTextCtrlHitTestResult
|
|
wxRichTextCtrl::HitTest(const wxPoint& pt,
|
|
long * pos) const
|
|
{
|
|
wxClientDC dc((wxRichTextCtrl*) this);
|
|
((wxRichTextCtrl*)this)->PrepareDC(dc);
|
|
|
|
int hit = ((wxRichTextCtrl*)this)->GetBuffer().HitTest(dc, pt, *pos);
|
|
if (hit == wxRICHTEXT_HITTEST_BEFORE)
|
|
return wxTE_HT_BEFORE;
|
|
else if (hit == wxRICHTEXT_HITTEST_AFTER)
|
|
return wxTE_HT_BEYOND;
|
|
else if (hit == wxRICHTEXT_HITTEST_ON)
|
|
return wxTE_HT_ON_TEXT;
|
|
else
|
|
return wxTE_HT_UNKNOWN;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// set/get the controls text
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxString wxRichTextCtrl::GetValue() const
|
|
{
|
|
return GetBuffer().GetText();
|
|
}
|
|
|
|
wxString wxRichTextCtrl::GetRange(long from, long to) const
|
|
{
|
|
return GetBuffer().GetTextForRange(wxRichTextRange(from, to));
|
|
}
|
|
|
|
void wxRichTextCtrl::SetValue(const wxString& value)
|
|
{
|
|
Clear();
|
|
|
|
// if the text is long enough, it's faster to just set it instead of first
|
|
// comparing it with the old one (chances are that it will be different
|
|
// anyhow, this comparison is there to avoid flicker for small single-line
|
|
// edit controls mostly)
|
|
if ( (value.length() > 0x400) || (value != GetValue()) )
|
|
{
|
|
DoWriteText(value, false /* not selection only */);
|
|
|
|
// for compatibility, don't move the cursor when doing SetValue()
|
|
SetInsertionPoint(0);
|
|
}
|
|
else // same text
|
|
{
|
|
// still send an event for consistency
|
|
SendUpdateEvent();
|
|
}
|
|
|
|
// we should reset the modified flag even if the value didn't really change
|
|
|
|
// mark the control as being not dirty - we changed its text, not the
|
|
// user
|
|
DiscardEdits();
|
|
}
|
|
|
|
void wxRichTextCtrl::WriteText(const wxString& value)
|
|
{
|
|
DoWriteText(value);
|
|
}
|
|
|
|
void wxRichTextCtrl::DoWriteText(const wxString& value, bool WXUNUSED(selectionOnly))
|
|
{
|
|
GetBuffer().InsertTextWithUndo(m_caretPosition+1, value, this);
|
|
}
|
|
|
|
void wxRichTextCtrl::AppendText(const wxString& text)
|
|
{
|
|
SetInsertionPointEnd();
|
|
|
|
WriteText(text);
|
|
}
|
|
|
|
/// Write an image at the current insertion point
|
|
bool wxRichTextCtrl::WriteImage(const wxImage& image, int bitmapType)
|
|
{
|
|
wxRichTextImageBlock imageBlock;
|
|
|
|
wxImage image2 = image;
|
|
if (imageBlock.MakeImageBlock(image2, bitmapType))
|
|
return WriteImage(imageBlock);
|
|
else
|
|
return false;
|
|
}
|
|
|
|
bool wxRichTextCtrl::WriteImage(const wxString& filename, int bitmapType)
|
|
{
|
|
wxRichTextImageBlock imageBlock;
|
|
|
|
wxImage image;
|
|
if (imageBlock.MakeImageBlock(filename, bitmapType, image, false))
|
|
return WriteImage(imageBlock);
|
|
else
|
|
return false;
|
|
}
|
|
|
|
bool wxRichTextCtrl::WriteImage(const wxRichTextImageBlock& imageBlock)
|
|
{
|
|
return GetBuffer().InsertImageWithUndo(m_caretPosition+1, imageBlock, this);
|
|
}
|
|
|
|
bool wxRichTextCtrl::WriteImage(const wxBitmap& bitmap, int bitmapType)
|
|
{
|
|
if (bitmap.Ok())
|
|
{
|
|
wxRichTextImageBlock imageBlock;
|
|
|
|
wxImage image = bitmap.ConvertToImage();
|
|
if (image.Ok() && imageBlock.MakeImageBlock(image, bitmapType))
|
|
return WriteImage(imageBlock);
|
|
else
|
|
return false;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// Insert a newline (actually paragraph) at the current insertion point.
|
|
bool wxRichTextCtrl::Newline()
|
|
{
|
|
return GetBuffer().InsertNewlineWithUndo(m_caretPosition+1, this);
|
|
}
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Clipboard operations
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRichTextCtrl::Copy()
|
|
{
|
|
if (CanCopy())
|
|
{
|
|
wxRichTextRange range = GetSelectionRange();
|
|
GetBuffer().CopyToClipboard(range);
|
|
}
|
|
}
|
|
|
|
void wxRichTextCtrl::Cut()
|
|
{
|
|
if (CanCut())
|
|
{
|
|
wxRichTextRange range = GetSelectionRange();
|
|
GetBuffer().CopyToClipboard(range);
|
|
|
|
DeleteSelectedContent();
|
|
LayoutContent();
|
|
Refresh(false);
|
|
}
|
|
}
|
|
|
|
void wxRichTextCtrl::Paste()
|
|
{
|
|
if (CanPaste())
|
|
{
|
|
BeginBatchUndo(_("Paste"));
|
|
|
|
long newPos = m_caretPosition;
|
|
DeleteSelectedContent(& newPos);
|
|
|
|
GetBuffer().PasteFromClipboard(newPos);
|
|
|
|
EndBatchUndo();
|
|
}
|
|
}
|
|
|
|
void wxRichTextCtrl::DeleteSelection()
|
|
{
|
|
if (CanDeleteSelection())
|
|
{
|
|
DeleteSelectedContent();
|
|
}
|
|
}
|
|
|
|
bool wxRichTextCtrl::HasSelection() const
|
|
{
|
|
return m_selectionRange.GetStart() != -2 && m_selectionRange.GetEnd() != -2;
|
|
}
|
|
|
|
bool wxRichTextCtrl::CanCopy() const
|
|
{
|
|
// Can copy if there's a selection
|
|
return HasSelection();
|
|
}
|
|
|
|
bool wxRichTextCtrl::CanCut() const
|
|
{
|
|
return HasSelection() && IsEditable();
|
|
}
|
|
|
|
bool wxRichTextCtrl::CanPaste() const
|
|
{
|
|
if ( !IsEditable() )
|
|
return false;
|
|
|
|
return GetBuffer().CanPasteFromClipboard();
|
|
}
|
|
|
|
bool wxRichTextCtrl::CanDeleteSelection() const
|
|
{
|
|
return HasSelection() && IsEditable();
|
|
}
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Accessors
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRichTextCtrl::SetEditable(bool editable)
|
|
{
|
|
m_editable = editable;
|
|
}
|
|
|
|
void wxRichTextCtrl::SetInsertionPoint(long pos)
|
|
{
|
|
SelectNone();
|
|
|
|
m_caretPosition = pos - 1;
|
|
}
|
|
|
|
void wxRichTextCtrl::SetInsertionPointEnd()
|
|
{
|
|
long pos = GetLastPosition();
|
|
SetInsertionPoint(pos);
|
|
}
|
|
|
|
long wxRichTextCtrl::GetInsertionPoint() const
|
|
{
|
|
return m_caretPosition+1;
|
|
}
|
|
|
|
wxTextPos wxRichTextCtrl::GetLastPosition() const
|
|
{
|
|
return GetBuffer().GetRange().GetEnd();
|
|
}
|
|
|
|
// If the return values from and to are the same, there is no
|
|
// selection.
|
|
void wxRichTextCtrl::GetSelection(long* from, long* to) const
|
|
{
|
|
*from = m_selectionRange.GetStart();
|
|
*to = m_selectionRange.GetEnd();
|
|
}
|
|
|
|
bool wxRichTextCtrl::IsEditable() const
|
|
{
|
|
return m_editable;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// selection
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRichTextCtrl::SetSelection(long from, long to)
|
|
{
|
|
// if from and to are both -1, it means (in wxWidgets) that all text should
|
|
// be selected.
|
|
if ( (from == -1) && (to == -1) )
|
|
{
|
|
from = 0;
|
|
to = GetLastPosition();
|
|
}
|
|
|
|
DoSetSelection(from, to);
|
|
}
|
|
|
|
void wxRichTextCtrl::DoSetSelection(long from, long to, bool WXUNUSED(scrollCaret))
|
|
{
|
|
m_selectionAnchor = from;
|
|
m_selectionRange.SetRange(from, to);
|
|
Refresh(false);
|
|
PositionCaret();
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Editing
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRichTextCtrl::Replace(long WXUNUSED(from), long WXUNUSED(to), const wxString& value)
|
|
{
|
|
BeginBatchUndo(_("Replace"));
|
|
|
|
DeleteSelectedContent();
|
|
|
|
DoWriteText(value, true /* selection only */);
|
|
|
|
EndBatchUndo();
|
|
}
|
|
|
|
void wxRichTextCtrl::Remove(long from, long to)
|
|
{
|
|
SelectNone();
|
|
|
|
GetBuffer().DeleteRangeWithUndo(wxRichTextRange(from, to),
|
|
m_caretPosition, // Current caret position
|
|
from, // New caret position
|
|
this);
|
|
|
|
LayoutContent();
|
|
if (!IsFrozen())
|
|
Refresh(false);
|
|
}
|
|
|
|
bool wxRichTextCtrl::IsModified() const
|
|
{
|
|
return m_buffer.IsModified();
|
|
}
|
|
|
|
void wxRichTextCtrl::MarkDirty()
|
|
{
|
|
m_buffer.Modify(true);
|
|
}
|
|
|
|
void wxRichTextCtrl::DiscardEdits()
|
|
{
|
|
m_buffer.Modify(false);
|
|
m_buffer.GetCommandProcessor()->ClearCommands();
|
|
}
|
|
|
|
int wxRichTextCtrl::GetNumberOfLines() const
|
|
{
|
|
return GetBuffer().GetParagraphCount();
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Positions <-> coords
|
|
// ----------------------------------------------------------------------------
|
|
|
|
long wxRichTextCtrl::XYToPosition(long x, long y) const
|
|
{
|
|
return GetBuffer().XYToPosition(x, y);
|
|
}
|
|
|
|
bool wxRichTextCtrl::PositionToXY(long pos, long *x, long *y) const
|
|
{
|
|
return GetBuffer().PositionToXY(pos, x, y);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
//
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRichTextCtrl::ShowPosition(long pos)
|
|
{
|
|
if (!IsPositionVisible(pos))
|
|
ScrollIntoView(pos-1, WXK_DOWN);
|
|
}
|
|
|
|
int wxRichTextCtrl::GetLineLength(long lineNo) const
|
|
{
|
|
return GetBuffer().GetParagraphLength(lineNo);
|
|
}
|
|
|
|
wxString wxRichTextCtrl::GetLineText(long lineNo) const
|
|
{
|
|
return GetBuffer().GetParagraphText(lineNo);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Undo/redo
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRichTextCtrl::Undo()
|
|
{
|
|
if (CanUndo())
|
|
{
|
|
GetCommandProcessor()->Undo();
|
|
}
|
|
}
|
|
|
|
void wxRichTextCtrl::Redo()
|
|
{
|
|
if (CanRedo())
|
|
{
|
|
GetCommandProcessor()->Redo();
|
|
}
|
|
}
|
|
|
|
bool wxRichTextCtrl::CanUndo() const
|
|
{
|
|
return GetCommandProcessor()->CanUndo();
|
|
}
|
|
|
|
bool wxRichTextCtrl::CanRedo() const
|
|
{
|
|
return GetCommandProcessor()->CanRedo();
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// implemenation details
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRichTextCtrl::Command(wxCommandEvent & event)
|
|
{
|
|
SetValue(event.GetString());
|
|
GetEventHandler()->ProcessEvent(event);
|
|
}
|
|
|
|
void wxRichTextCtrl::OnDropFiles(wxDropFilesEvent& event)
|
|
{
|
|
// By default, load the first file into the text window.
|
|
if (event.GetNumberOfFiles() > 0)
|
|
{
|
|
LoadFile(event.GetFiles()[0]);
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// text control event processing
|
|
// ----------------------------------------------------------------------------
|
|
|
|
bool wxRichTextCtrl::SendUpdateEvent()
|
|
{
|
|
wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
|
|
InitCommandEvent(event);
|
|
|
|
return GetEventHandler()->ProcessEvent(event);
|
|
}
|
|
|
|
void wxRichTextCtrl::InitCommandEvent(wxCommandEvent& event) const
|
|
{
|
|
event.SetEventObject((wxControlBase *)this); // const_cast
|
|
|
|
switch ( m_clientDataType )
|
|
{
|
|
case wxClientData_Void:
|
|
event.SetClientData(GetClientData());
|
|
break;
|
|
|
|
case wxClientData_Object:
|
|
event.SetClientObject(GetClientObject());
|
|
break;
|
|
|
|
case wxClientData_None:
|
|
// nothing to do
|
|
;
|
|
}
|
|
}
|
|
|
|
|
|
wxSize wxRichTextCtrl::DoGetBestSize() const
|
|
{
|
|
return wxSize(10, 10);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// standard handlers for standard edit menu events
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRichTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
Cut();
|
|
}
|
|
|
|
void wxRichTextCtrl::OnClear(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
DeleteSelection();
|
|
}
|
|
|
|
void wxRichTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
Copy();
|
|
}
|
|
|
|
void wxRichTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
Paste();
|
|
}
|
|
|
|
void wxRichTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
Undo();
|
|
}
|
|
|
|
void wxRichTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
Redo();
|
|
}
|
|
|
|
void wxRichTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
|
|
{
|
|
event.Enable( CanCut() );
|
|
}
|
|
|
|
void wxRichTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
|
|
{
|
|
event.Enable( CanCopy() );
|
|
}
|
|
|
|
void wxRichTextCtrl::OnUpdateClear(wxUpdateUIEvent& event)
|
|
{
|
|
event.Enable( CanDeleteSelection() );
|
|
}
|
|
|
|
void wxRichTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
|
|
{
|
|
event.Enable( CanPaste() );
|
|
}
|
|
|
|
void wxRichTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
|
|
{
|
|
event.Enable( CanUndo() );
|
|
event.SetText( GetCommandProcessor()->GetUndoMenuLabel() );
|
|
}
|
|
|
|
void wxRichTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
|
|
{
|
|
event.Enable( CanRedo() );
|
|
event.SetText( GetCommandProcessor()->GetRedoMenuLabel() );
|
|
}
|
|
|
|
void wxRichTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
SelectAll();
|
|
}
|
|
|
|
void wxRichTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
|
|
{
|
|
event.Enable(GetLastPosition() > 0);
|
|
}
|
|
|
|
void wxRichTextCtrl::OnContextMenu(wxContextMenuEvent& WXUNUSED(event))
|
|
{
|
|
if (!m_contextMenu)
|
|
{
|
|
m_contextMenu = new wxMenu;
|
|
m_contextMenu->Append(wxID_UNDO, _("&Undo"));
|
|
m_contextMenu->Append(wxID_REDO, _("&Redo"));
|
|
m_contextMenu->AppendSeparator();
|
|
m_contextMenu->Append(wxID_CUT, _("Cu&t"));
|
|
m_contextMenu->Append(wxID_COPY, _("&Copy"));
|
|
m_contextMenu->Append(wxID_PASTE, _("&Paste"));
|
|
m_contextMenu->Append(wxID_CLEAR, _("&Delete"));
|
|
m_contextMenu->AppendSeparator();
|
|
m_contextMenu->Append(wxID_SELECTALL, _("Select &All"));
|
|
}
|
|
PopupMenu(m_contextMenu);
|
|
return;
|
|
}
|
|
|
|
bool wxRichTextCtrl::SetStyle(long start, long end, const wxTextAttrEx& style)
|
|
{
|
|
return GetBuffer().SetStyle(wxRichTextRange(start, end), style);
|
|
}
|
|
|
|
bool wxRichTextCtrl::SetStyle(const wxRichTextRange& range, const wxRichTextAttr& style)
|
|
{
|
|
return GetBuffer().SetStyle(range, style);
|
|
}
|
|
|
|
bool wxRichTextCtrl::SetDefaultStyle(const wxTextAttrEx& style)
|
|
{
|
|
return GetBuffer().SetDefaultStyle(style);
|
|
}
|
|
|
|
const wxTextAttrEx& wxRichTextCtrl::GetDefaultStyleEx() const
|
|
{
|
|
return GetBuffer().GetDefaultStyle();
|
|
}
|
|
|
|
bool wxRichTextCtrl::GetStyle(long position, wxTextAttrEx& style) const
|
|
{
|
|
return GetBuffer().GetStyle(position, style);
|
|
}
|
|
|
|
bool wxRichTextCtrl::GetStyle(long position, wxRichTextAttr& style) const
|
|
{
|
|
return GetBuffer().GetStyle(position, style);
|
|
}
|
|
|
|
/// Set font, and also the buffer attributes
|
|
bool wxRichTextCtrl::SetFont(const wxFont& font)
|
|
{
|
|
#if wxRICHTEXT_DERIVES_FROM_TEXTCTRLBASE
|
|
wxControl::SetFont(font);
|
|
#else
|
|
wxScrolledWindow::SetFont(font);
|
|
#endif
|
|
|
|
wxTextAttrEx attr = GetBuffer().GetAttributes();
|
|
attr.SetFont(font);
|
|
GetBuffer().SetBasicStyle(attr);
|
|
GetBuffer().SetDefaultStyle(attr);
|
|
|
|
return true;
|
|
}
|
|
|
|
/// Transform logical to physical
|
|
wxPoint wxRichTextCtrl::GetPhysicalPoint(const wxPoint& ptLogical) const
|
|
{
|
|
wxPoint pt;
|
|
CalcScrolledPosition(ptLogical.x, ptLogical.y, & pt.x, & pt.y);
|
|
|
|
return pt;
|
|
}
|
|
|
|
/// Transform physical to logical
|
|
wxPoint wxRichTextCtrl::GetLogicalPoint(const wxPoint& ptPhysical) const
|
|
{
|
|
wxPoint pt;
|
|
CalcUnscrolledPosition(ptPhysical.x, ptPhysical.y, & pt.x, & pt.y);
|
|
|
|
return pt;
|
|
}
|
|
|
|
/// Position the caret
|
|
void wxRichTextCtrl::PositionCaret()
|
|
{
|
|
if (!GetCaret())
|
|
return;
|
|
|
|
//wxLogDebug(wxT("PositionCaret"));
|
|
|
|
wxRect caretRect;
|
|
if (GetCaretPositionForIndex(GetCaretPosition(), caretRect))
|
|
{
|
|
wxPoint originalPt = caretRect.GetPosition();
|
|
wxPoint pt = GetPhysicalPoint(originalPt);
|
|
if (GetCaret()->GetPosition() != pt)
|
|
{
|
|
GetCaret()->Move(pt);
|
|
GetCaret()->SetSize(caretRect.GetSize());
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Get the caret height and position for the given character position
|
|
bool wxRichTextCtrl::GetCaretPositionForIndex(long position, wxRect& rect)
|
|
{
|
|
wxClientDC dc(this);
|
|
dc.SetFont(GetFont());
|
|
|
|
PrepareDC(dc);
|
|
|
|
wxPoint pt;
|
|
int height = 0;
|
|
|
|
if (GetBuffer().FindPosition(dc, position, pt, & height, m_caretAtLineStart))
|
|
{
|
|
rect = wxRect(pt, wxSize(wxRICHTEXT_DEFAULT_CARET_WIDTH, height));
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/// Gets the line for the visible caret position. If the caret is
|
|
/// shown at the very end of the line, it means the next character is actually
|
|
/// on the following line. So let's get the line we're expecting to find
|
|
/// if this is the case.
|
|
wxRichTextLine* wxRichTextCtrl::GetVisibleLineForCaretPosition(long caretPosition) const
|
|
{
|
|
wxRichTextLine* line = GetBuffer().GetLineAtPosition(caretPosition, true);
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(caretPosition, true);
|
|
if (line)
|
|
{
|
|
wxRichTextRange lineRange = line->GetAbsoluteRange();
|
|
if (caretPosition == lineRange.GetStart()-1 &&
|
|
(para->GetRange().GetStart() != lineRange.GetStart()))
|
|
{
|
|
if (!m_caretAtLineStart)
|
|
line = GetBuffer().GetLineAtPosition(caretPosition-1, true);
|
|
}
|
|
}
|
|
return line;
|
|
}
|
|
|
|
|
|
/// Move the caret to the given character position
|
|
bool wxRichTextCtrl::MoveCaret(long pos, bool showAtLineStart)
|
|
{
|
|
if (GetBuffer().GetDirty())
|
|
LayoutContent();
|
|
|
|
if (pos <= GetBuffer().GetRange().GetEnd())
|
|
{
|
|
SetCaretPosition(pos, showAtLineStart);
|
|
|
|
PositionCaret();
|
|
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/// Layout the buffer: which we must do before certain operations, such as
|
|
/// setting the caret position.
|
|
bool wxRichTextCtrl::LayoutContent(bool onlyVisibleRect)
|
|
{
|
|
if (GetBuffer().GetDirty() || onlyVisibleRect)
|
|
{
|
|
wxRect availableSpace(GetClientSize());
|
|
if (availableSpace.width == 0)
|
|
availableSpace.width = 10;
|
|
if (availableSpace.height == 0)
|
|
availableSpace.height = 10;
|
|
|
|
int flags = wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT;
|
|
if (onlyVisibleRect)
|
|
{
|
|
flags |= wxRICHTEXT_LAYOUT_SPECIFIED_RECT;
|
|
availableSpace.SetPosition(GetLogicalPoint(wxPoint(0, 0)));
|
|
}
|
|
|
|
wxClientDC dc(this);
|
|
dc.SetFont(GetFont());
|
|
|
|
PrepareDC(dc);
|
|
|
|
GetBuffer().Defragment();
|
|
GetBuffer().UpdateRanges(); // If items were deleted, ranges need recalculation
|
|
GetBuffer().Layout(dc, availableSpace, flags);
|
|
GetBuffer().SetDirty(false);
|
|
|
|
if (!IsFrozen())
|
|
SetupScrollbars();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/// Is all of the selection bold?
|
|
bool wxRichTextCtrl::IsSelectionBold() const
|
|
{
|
|
if (HasSelection())
|
|
{
|
|
wxRichTextAttr attr;
|
|
wxRichTextRange range = GetSelectionRange();
|
|
attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
|
|
attr.SetFontWeight(wxBOLD);
|
|
|
|
return HasCharacterAttributes(range, attr);
|
|
}
|
|
else
|
|
{
|
|
// If no selection, then we need to combine current style with default style
|
|
// to see what the effect would be if we started typing.
|
|
wxRichTextAttr attr;
|
|
attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
|
|
if (GetStyle(GetCaretPosition()+1, attr))
|
|
{
|
|
wxRichTextApplyStyle(attr, GetDefaultStyleEx());
|
|
return attr.GetFontWeight() == wxBOLD;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// Is all of the selection italics?
|
|
bool wxRichTextCtrl::IsSelectionItalics() const
|
|
{
|
|
if (HasSelection())
|
|
{
|
|
wxRichTextRange range = GetSelectionRange();
|
|
wxRichTextAttr attr;
|
|
attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
|
|
attr.SetFontStyle(wxITALIC);
|
|
|
|
return HasCharacterAttributes(range, attr);
|
|
}
|
|
else
|
|
{
|
|
// If no selection, then we need to combine current style with default style
|
|
// to see what the effect would be if we started typing.
|
|
wxRichTextAttr attr;
|
|
attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
|
|
if (GetStyle(GetCaretPosition()+1, attr))
|
|
{
|
|
wxRichTextApplyStyle(attr, GetDefaultStyleEx());
|
|
return attr.GetFontStyle() == wxITALIC;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// Is all of the selection underlined?
|
|
bool wxRichTextCtrl::IsSelectionUnderlined() const
|
|
{
|
|
if (HasSelection())
|
|
{
|
|
wxRichTextRange range = GetSelectionRange();
|
|
wxRichTextAttr attr;
|
|
attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
|
|
attr.SetFontUnderlined(true);
|
|
|
|
return HasCharacterAttributes(range, attr);
|
|
}
|
|
else
|
|
{
|
|
// If no selection, then we need to combine current style with default style
|
|
// to see what the effect would be if we started typing.
|
|
wxRichTextAttr attr;
|
|
attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
|
|
if (GetStyle(GetCaretPosition()+1, attr))
|
|
{
|
|
wxRichTextApplyStyle(attr, GetDefaultStyleEx());
|
|
return attr.GetFontUnderlined();
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// Apply bold to the selection
|
|
bool wxRichTextCtrl::ApplyBoldToSelection()
|
|
{
|
|
wxRichTextAttr attr;
|
|
attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
|
|
attr.SetFontWeight(IsSelectionBold() ? wxNORMAL : wxBOLD);
|
|
|
|
if (HasSelection())
|
|
return SetStyle(GetSelectionRange(), attr);
|
|
else
|
|
SetDefaultStyle(attr);
|
|
return true;
|
|
}
|
|
|
|
/// Apply italic to the selection
|
|
bool wxRichTextCtrl::ApplyItalicToSelection()
|
|
{
|
|
wxRichTextAttr attr;
|
|
attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
|
|
attr.SetFontStyle(IsSelectionItalics() ? wxNORMAL : wxITALIC);
|
|
|
|
if (HasSelection())
|
|
return SetStyle(GetSelectionRange(), attr);
|
|
else
|
|
SetDefaultStyle(attr);
|
|
return true;
|
|
}
|
|
|
|
/// Apply underline to the selection
|
|
bool wxRichTextCtrl::ApplyUnderlineToSelection()
|
|
{
|
|
wxRichTextAttr attr;
|
|
attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
|
|
attr.SetFontUnderlined(!IsSelectionUnderlined());
|
|
|
|
if (HasSelection())
|
|
return SetStyle(GetSelectionRange(), attr);
|
|
else
|
|
SetDefaultStyle(attr);
|
|
return true;
|
|
}
|
|
|
|
/// Is all of the selection aligned according to the specified flag?
|
|
bool wxRichTextCtrl::IsSelectionAligned(wxTextAttrAlignment alignment) const
|
|
{
|
|
if (HasSelection())
|
|
{
|
|
wxRichTextRange range = GetSelectionRange();
|
|
wxRichTextAttr attr;
|
|
attr.SetAlignment(alignment);
|
|
|
|
return HasParagraphAttributes(range, attr);
|
|
}
|
|
else
|
|
{
|
|
// If no selection, then we need to get information from the current paragraph.
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(GetCaretPosition()+1);
|
|
if (para)
|
|
return para->GetAttributes().GetAlignment() == alignment;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// Apply alignment to the selection
|
|
bool wxRichTextCtrl::ApplyAlignmentToSelection(wxTextAttrAlignment alignment)
|
|
{
|
|
wxRichTextAttr attr;
|
|
attr.SetAlignment(alignment);
|
|
if (HasSelection())
|
|
return SetStyle(GetSelectionRange(), attr);
|
|
else
|
|
{
|
|
wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(GetCaretPosition()+1);
|
|
if (para)
|
|
return SetStyle(para->GetRange(), attr);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/// Sets the default style to the style under the cursor
|
|
bool wxRichTextCtrl::SetDefaultStyleToCursorStyle()
|
|
{
|
|
wxTextAttrEx attr;
|
|
attr.SetFlags(wxTEXT_ATTR_CHARACTER);
|
|
|
|
if (GetStyle(GetCaretPosition(), attr))
|
|
{
|
|
SetDefaultStyle(attr);
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/// Returns the first visible position in the current view
|
|
long wxRichTextCtrl::GetFirstVisiblePosition() const
|
|
{
|
|
wxRichTextLine* line = GetBuffer().GetLineAtYPosition(GetLogicalPoint(wxPoint(0, 0)).y);
|
|
if (line)
|
|
return line->GetAbsoluteRange().GetStart();
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
// wxUSE_RICHTEXT
|
|
|