Added wxRichTextCtrl
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35949 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
312
src/richtext/richtextstyles.cpp
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312
src/richtext/richtextstyles.cpp
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/////////////////////////////////////////////////////////////////////////////
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// Name: richtextstyles.cpp
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// Purpose: Style management for wxRichTextCtrl
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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:
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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/filename.h"
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#include "wx/clipbrd.h"
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#include "wx/wfstream.h"
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#include "wx/module.h"
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#include "wx/richtext/richtextstyles.h"
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#include "wx/richtext/richtextctrl.h"
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IMPLEMENT_CLASS(wxRichTextStyleDefinition, wxObject)
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IMPLEMENT_CLASS(wxRichTextCharacterStyleDefinition, wxRichTextStyleDefinition)
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IMPLEMENT_CLASS(wxRichTextParagraphStyleDefinition, wxRichTextStyleDefinition)
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/*!
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* The style manager
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*/
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IMPLEMENT_CLASS(wxRichTextStyleSheet, wxObject)
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/// Initialisation
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void wxRichTextStyleSheet::Init()
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{
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}
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/// Add a definition to one of the style lists
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bool wxRichTextStyleSheet::AddStyle(wxList& list, wxRichTextStyleDefinition* def)
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{
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if (!list.Find(def))
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list.Append(def);
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return true;
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}
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/// Remove a style
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bool wxRichTextStyleSheet::RemoveStyle(wxList& list, wxRichTextStyleDefinition* def, bool deleteStyle)
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{
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wxNode* node = list.Find(def);
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if (node)
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{
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wxRichTextStyleDefinition* def = (wxRichTextStyleDefinition*) node->GetData();
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delete node;
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if (deleteStyle)
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delete def;
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return true;
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}
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else
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return false;
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}
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/// Find a definition by name
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wxRichTextStyleDefinition* wxRichTextStyleSheet::FindStyle(const wxList& list, const wxString& name) const
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{
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for (wxNode* node = list.GetFirst(); node; node = node->GetNext())
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{
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wxRichTextStyleDefinition* def = (wxRichTextStyleDefinition*) node->GetData();
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if (def->GetName().Lower() == name.Lower())
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return def;
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}
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return NULL;
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}
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/// Delete all styles
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void wxRichTextStyleSheet::DeleteStyles()
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{
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WX_CLEAR_LIST(wxList, m_characterStyleDefinitions);
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WX_CLEAR_LIST(wxList, m_paragraphStyleDefinitions);
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}
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#if wxUSE_HTML
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/*!
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* wxRichTextStyleListBox class declaration
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* A listbox to display styles.
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*/
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IMPLEMENT_CLASS(wxRichTextStyleListBox, wxHtmlListBox)
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BEGIN_EVENT_TABLE(wxRichTextStyleListBox, wxHtmlListBox)
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EVT_LISTBOX(wxID_ANY, wxRichTextStyleListBox::OnSelect)
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EVT_LEFT_DOWN(wxRichTextStyleListBox::OnLeftDown)
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END_EVENT_TABLE()
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wxRichTextStyleListBox::wxRichTextStyleListBox(wxWindow* parent, wxWindowID id, const wxPoint& pos,
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const wxSize& size, long style): wxHtmlListBox(parent, id, pos, size, style)
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{
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m_styleSheet = NULL;
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m_richTextCtrl = NULL;
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}
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wxRichTextStyleListBox::~wxRichTextStyleListBox()
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{
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}
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/// Returns the HTML for this item
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wxString wxRichTextStyleListBox::OnGetItem(size_t n) const
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{
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if (!GetStyleSheet())
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return wxEmptyString;
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// First paragraph styles, then character
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if (n < GetStyleSheet()->GetParagraphStyleCount())
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{
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wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->GetParagraphStyle(n);
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wxString str = CreateHTML(def);
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return str;
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}
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if ((n - GetStyleSheet()->GetParagraphStyleCount()) < GetStyleSheet()->GetCharacterStyleCount())
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{
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wxRichTextCharacterStyleDefinition* def = GetStyleSheet()->GetCharacterStyle(n - GetStyleSheet()->GetParagraphStyleCount());
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wxString str = CreateHTML(def);
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return str;
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}
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return wxEmptyString;
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}
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// Get style for index
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wxRichTextStyleDefinition* wxRichTextStyleListBox::GetStyle(size_t i) const
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{
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if (!GetStyleSheet())
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return NULL;
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// First paragraph styles, then character
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if (i < GetStyleSheet()->GetParagraphStyleCount())
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return GetStyleSheet()->GetParagraphStyle(i);
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if ((i - GetStyleSheet()->GetParagraphStyleCount()) < GetStyleSheet()->GetCharacterStyleCount())
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return GetStyleSheet()->GetCharacterStyle(i - GetStyleSheet()->GetParagraphStyleCount());
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return NULL;
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}
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/// Updates the list
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void wxRichTextStyleListBox::UpdateStyles()
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{
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if (GetStyleSheet())
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{
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SetItemCount(GetStyleSheet()->GetParagraphStyleCount()+GetStyleSheet()->GetCharacterStyleCount());
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Refresh();
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}
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}
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// Convert a colour to a 6-digit hex string
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static wxString ColourToHexString(const wxColour& col)
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{
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wxString hex;
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hex += wxDecToHex(col.Red());
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hex += wxDecToHex(col.Green());
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hex += wxDecToHex(col.Blue());
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return hex;
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}
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/// Creates a suitable HTML fragment for a definition
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wxString wxRichTextStyleListBox::CreateHTML(wxRichTextStyleDefinition* def) const
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{
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wxString str(wxT("<table><tr>"));
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if (def->GetStyle().GetLeftIndent() > 0)
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{
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wxClientDC dc((wxWindow*) this);
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str << wxT("<td width=") << ConvertTenthsMMToPixels(dc, def->GetStyle().GetLeftIndent()) << wxT("></td>");
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}
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str << wxT("<td nowrap>");
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int size = 5;
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// Standard size is 12, say
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size += 12 - def->GetStyle().GetFontSize();
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str += wxT("<font");
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str << wxT(" size=") << size;
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if (!def->GetStyle().GetFontFaceName().IsEmpty())
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str << wxT(" face=\"") << def->GetStyle().GetFontFaceName() << wxT("\"");
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if (def->GetStyle().GetTextColour().Ok())
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str << wxT(" color=\"#") << ColourToHexString(def->GetStyle().GetTextColour()) << wxT("\"");
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str << wxT(">");
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bool hasBold = false;
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bool hasItalic = false;
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bool hasUnderline = false;
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if (def->GetStyle().GetFontWeight() == wxBOLD)
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hasBold = true;
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if (def->GetStyle().GetFontStyle() == wxITALIC)
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hasItalic = true;
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if (def->GetStyle().GetFontUnderlined())
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hasUnderline = true;
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if (hasBold)
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str << wxT("<b>");
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if (hasItalic)
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str << wxT("<i>");
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if (hasUnderline)
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str << wxT("<u>");
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str += def->GetName();
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if (hasUnderline)
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str << wxT("</u>");
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if (hasItalic)
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str << wxT("</i>");
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if (hasBold)
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str << wxT("</b>");
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str << wxT("</font>");
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str += wxT("</td></tr></table>");
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return str;
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}
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// Convert units in tends of a millimetre to device units
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int wxRichTextStyleListBox::ConvertTenthsMMToPixels(wxDC& dc, int units) const
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{
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int ppi = dc.GetPPI().x;
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// There are ppi pixels in 254.1 "1/10 mm"
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double pixels = ((double) units * (double)ppi) / 254.1;
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return (int) pixels;
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}
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/// React to selection
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void wxRichTextStyleListBox::OnSelect(wxCommandEvent& WXUNUSED(event))
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{
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#if 0
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wxRichTextStyleDefinition* def = GetStyle(event.GetSelection());
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if (def)
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{
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wxMessageBox(def->GetName());
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}
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#endif
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}
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void wxRichTextStyleListBox::OnLeftDown(wxMouseEvent& event)
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{
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wxVListBox::OnLeftDown(event);
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int item = HitTest(event.GetPosition());
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if ( item != wxNOT_FOUND )
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{
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wxRichTextStyleDefinition* def = GetStyle(item);
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if (def && GetRichTextCtrl())
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{
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wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
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// Flags are defined within each definition, so only certain
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// attributes are applied.
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wxRichTextAttr attr(def->GetStyle());
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if (m_richTextCtrl->HasSelection())
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m_richTextCtrl->SetStyle(m_richTextCtrl->GetSelectionRange(), attr);
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else
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m_richTextCtrl->SetDefaultStyle(attr);
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m_richTextCtrl->SetFocus();
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}
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}
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}
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#if 0
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wxColour wxRichTextStyleListBox::GetSelectedTextColour(const wxColour& colFg) const
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{
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return *wxBLACK;
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}
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wxColour wxRichTextStyleListBox::GetSelectedTextBgColour(const wxColour& colBg) const
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{
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return *wxWHITE;
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}
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#endif
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#endif
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// wxUSE_HTML
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#endif
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// wxUSE_RICHTEXT
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