c5ca409b6a
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@23259 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
557 lines
15 KiB
C++
557 lines
15 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: msw/checklst.cpp
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// Purpose: implementation of wxCheckListBox class
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 16.11.97
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// RCS-ID: $Id$
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// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma implementation "checklst.h"
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#endif
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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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#if wxUSE_OWNER_DRAWN
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#ifndef WX_PRECOMP
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#include "wx/object.h"
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#include "wx/colour.h"
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#include "wx/font.h"
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#include "wx/bitmap.h"
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#include "wx/window.h"
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#include "wx/listbox.h"
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#include "wx/dcmemory.h"
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#include "wx/settings.h"
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#include "wx/log.h"
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#endif
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#include "wx/ownerdrw.h"
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#include "wx/checklst.h"
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#include "wx/msw/wrapwin.h"
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#include <windowsx.h>
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#include "wx/msw/private.h"
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#if defined(__GNUWIN32_OLD__)
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#include "wx/msw/gnuwin32/extra.h"
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#endif
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// ----------------------------------------------------------------------------
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// private functions
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// ----------------------------------------------------------------------------
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// get item (converted to right type)
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#define GetItem(n) ((wxCheckListBoxItem *)(GetItem(n)))
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// ============================================================================
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// implementation
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// ============================================================================
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// TODO: WX_CONSTRUCTOR
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#if 0 // wxUSE_EXTENDED_RTTI
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WX_DEFINE_FLAGS( wxCheckListBoxStyle )
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WX_BEGIN_FLAGS( wxCheckListBoxStyle )
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// new style border flags, we put them first to
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// use them for streaming out
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WX_FLAGS_MEMBER(wxBORDER_SIMPLE)
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WX_FLAGS_MEMBER(wxBORDER_SUNKEN)
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WX_FLAGS_MEMBER(wxBORDER_DOUBLE)
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WX_FLAGS_MEMBER(wxBORDER_RAISED)
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WX_FLAGS_MEMBER(wxBORDER_STATIC)
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WX_FLAGS_MEMBER(wxBORDER_NONE)
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// old style border flags
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WX_FLAGS_MEMBER(wxSIMPLE_BORDER)
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WX_FLAGS_MEMBER(wxSUNKEN_BORDER)
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WX_FLAGS_MEMBER(wxDOUBLE_BORDER)
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WX_FLAGS_MEMBER(wxRAISED_BORDER)
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WX_FLAGS_MEMBER(wxSTATIC_BORDER)
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WX_FLAGS_MEMBER(wxNO_BORDER)
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// standard window styles
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WX_FLAGS_MEMBER(wxTAB_TRAVERSAL)
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WX_FLAGS_MEMBER(wxCLIP_CHILDREN)
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WX_FLAGS_MEMBER(wxTRANSPARENT_WINDOW)
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WX_FLAGS_MEMBER(wxWANTS_CHARS)
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WX_FLAGS_MEMBER(wxNO_FULL_REPAINT_ON_RESIZE)
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WX_FLAGS_MEMBER(wxALWAYS_SHOW_SB )
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WX_FLAGS_MEMBER(wxVSCROLL)
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WX_FLAGS_MEMBER(wxHSCROLL)
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WX_FLAGS_MEMBER(wxLB_SINGLE)
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WX_FLAGS_MEMBER(wxLB_MULTIPLE)
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WX_FLAGS_MEMBER(wxLB_EXTENDED)
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WX_FLAGS_MEMBER(wxLB_HSCROLL)
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WX_FLAGS_MEMBER(wxLB_ALWAYS_SB)
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WX_FLAGS_MEMBER(wxLB_NEEDED_SB)
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WX_FLAGS_MEMBER(wxLB_SORT)
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WX_END_FLAGS( wxCheckListBoxStyle )
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IMPLEMENT_DYNAMIC_CLASS_XTI(wxCheckListBox, wxListBox,"wx/checklst.h")
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WX_BEGIN_PROPERTIES_TABLE(wxCheckListBox)
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WX_DELEGATE( OnToggle , wxEVT_COMMAND_CHECKLISTBOX_TOGGLED , wxCommandEvent )
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WX_PROPERTY_FLAGS( WindowStyle , wxCheckListBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
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WX_END_PROPERTIES_TABLE()
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#else
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IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
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#endif
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/*
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TODO PROPERTIES
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list content
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item , checked (no)
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*/
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// ----------------------------------------------------------------------------
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// declaration and implementation of wxCheckListBoxItem class
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// ----------------------------------------------------------------------------
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class wxCheckListBoxItem : public wxOwnerDrawn
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{
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friend class WXDLLEXPORT wxCheckListBox;
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public:
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// ctor
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wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex);
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// drawing functions
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virtual bool OnDrawItem(wxDC& dc, const wxRect& rc, wxODAction act, wxODStatus stat);
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// simple accessors and operations
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bool IsChecked() const { return m_bChecked; }
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void Check(bool bCheck);
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void Toggle() { Check(!IsChecked()); }
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void SendEvent();
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private:
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DECLARE_NO_COPY_CLASS(wxCheckListBoxItem)
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bool m_bChecked;
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wxCheckListBox *m_pParent;
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size_t m_nIndex;
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};
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wxCheckListBoxItem::wxCheckListBoxItem(wxCheckListBox *pParent, size_t nIndex)
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: wxOwnerDrawn(wxEmptyString, TRUE) // checkable
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{
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m_bChecked = FALSE;
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m_pParent = pParent;
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m_nIndex = nIndex;
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// we don't initialize m_nCheckHeight/Width vars because it's
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// done in OnMeasure while they are used only in OnDraw and we
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// know that there will always be OnMeasure before OnDraw
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// fix appearance
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SetMarginWidth(GetDefaultMarginWidth());
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}
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/*
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* JACS - I've got the owner-draw stuff partially working with WIN16,
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* with a really horrible-looking cross for wxCheckListBox instead of a
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* check - could use a bitmap check-mark instead, defined in wx.rc.
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* Also there's a refresh problem whereby it doesn't always draw the
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* check until you click to the right of it, which is OK for WIN32.
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*/
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bool wxCheckListBoxItem::OnDrawItem(wxDC& dc, const wxRect& rc,
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wxODAction act, wxODStatus stat)
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{
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if ( IsChecked() )
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stat = (wxOwnerDrawn::wxODStatus)(stat | wxOwnerDrawn::wxODChecked);
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if ( wxOwnerDrawn::OnDrawItem(dc, rc, act, stat) ) {
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// ## using native API for performance and precision
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size_t nCheckWidth = GetDefaultMarginWidth(),
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nCheckHeight = m_pParent->GetItemHeight();
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int x = rc.GetX(),
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y = rc.GetY();
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HDC hdc = (HDC)dc.GetHDC();
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// create pens
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HPEN hpenBack = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_WINDOW)),
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hpenGray = CreatePen(PS_SOLID, 0, RGB(128, 128, 128)),
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hpenPrev = (HPEN)SelectObject(hdc, hpenBack);
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// we erase the 1-pixel border
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Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);
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// shift check mark 1 pixel to the right (it looks better like this)
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x++;
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if ( IsChecked() ) {
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// first create a monochrome bitmap in a memory DC
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HDC hdcMem = CreateCompatibleDC(hdc);
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HBITMAP hbmpCheck = CreateBitmap(nCheckWidth, nCheckHeight, 1, 1, 0);
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HBITMAP hbmpOld = (HBITMAP)SelectObject(hdcMem, hbmpCheck);
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// then draw a check mark into it
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RECT rect;
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rect.left = 0;
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rect.top = 0;
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rect.right = nCheckWidth;
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rect.bottom = nCheckHeight;
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#ifdef __WXWINCE__
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DrawFrameControl(hdcMem, &rect, DFC_BUTTON, DFCS_BUTTONCHECK);
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#else
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DrawFrameControl(hdcMem, &rect, DFC_MENU, DFCS_MENUCHECK);
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#endif
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// finally copy it to screen DC and clean up
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BitBlt(hdc, x, y, nCheckWidth - 1, nCheckHeight,
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hdcMem, 0, 0, SRCCOPY);
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SelectObject(hdcMem, hbmpOld);
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DeleteObject(hbmpCheck);
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DeleteDC(hdcMem);
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}
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// now we draw the smaller rectangle
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y++;
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nCheckWidth -= 2;
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nCheckHeight -= 2;
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// draw hollow gray rectangle
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(void)SelectObject(hdc, hpenGray);
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HBRUSH hbrPrev = (HBRUSH)SelectObject(hdc, GetStockObject(NULL_BRUSH));
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Rectangle(hdc, x, y, x + nCheckWidth, y + nCheckHeight);
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// clean up
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(void)SelectObject(hdc, hpenPrev);
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(void)SelectObject(hdc, hbrPrev);
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DeleteObject(hpenBack);
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DeleteObject(hpenGray);
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/*
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dc.DrawRectangle(x, y, nCheckWidth, nCheckHeight);
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if ( IsChecked() ) {
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dc.DrawLine(x, y, x + nCheckWidth, y + nCheckHeight);
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dc.DrawLine(x, y + nCheckHeight, x + nCheckWidth, y);
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}
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*/
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return TRUE;
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}
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return FALSE;
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}
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// change the state of the item and redraw it
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void wxCheckListBoxItem::Check(bool check)
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{
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m_bChecked = check;
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// index may be changed because new items were added/deleted
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if ( m_pParent->GetItemIndex(this) != (int)m_nIndex )
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{
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// update it
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int index = m_pParent->GetItemIndex(this);
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wxASSERT_MSG( index != wxNOT_FOUND, wxT("what does this item do here?") );
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m_nIndex = (size_t)index;
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}
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HWND hwndListbox = (HWND)m_pParent->GetHWND();
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#ifdef __WIN32__
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RECT rcUpdate;
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if ( ::SendMessage(hwndListbox, LB_GETITEMRECT,
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m_nIndex, (LPARAM)&rcUpdate) == LB_ERR )
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{
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wxLogDebug(wxT("LB_GETITEMRECT failed"));
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}
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#else // Win16
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// FIXME this doesn't work if the listbox is scrolled!
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size_t nHeight = m_pParent->GetItemHeight();
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size_t y = m_nIndex * nHeight;
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RECT rcUpdate ;
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rcUpdate.left = 0 ;
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rcUpdate.top = y ;
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rcUpdate.right = GetDefaultMarginWidth() ;
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rcUpdate.bottom = y + nHeight ;
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#endif // Win32/16
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InvalidateRect(hwndListbox, &rcUpdate, FALSE);
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}
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// send an "item checked" event
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void wxCheckListBoxItem::SendEvent()
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{
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wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, m_pParent->GetId());
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event.SetInt(m_nIndex);
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event.SetEventObject(m_pParent);
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m_pParent->ProcessCommand(event);
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}
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// ----------------------------------------------------------------------------
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// implementation of wxCheckListBox class
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// ----------------------------------------------------------------------------
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// define event table
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// ------------------
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BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
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EVT_KEY_DOWN(wxCheckListBox::OnKeyDown)
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EVT_LEFT_DOWN(wxCheckListBox::OnLeftClick)
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END_EVENT_TABLE()
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// control creation
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// ----------------
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// def ctor: use Create() to really create the control
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wxCheckListBox::wxCheckListBox()
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{
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}
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// ctor which creates the associated control
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wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
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const wxPoint& pos, const wxSize& size,
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int nStrings, const wxString choices[],
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long style, const wxValidator& val,
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const wxString& name)
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{
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Create(parent, id, pos, size, nStrings, choices, style, val, name);
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}
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bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
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const wxPoint& pos, const wxSize& size,
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int n, const wxString choices[],
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long style,
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const wxValidator& validator, const wxString& name)
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{
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return wxListBox::Create(parent, id, pos, size, n, choices,
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style | wxLB_OWNERDRAW, validator, name);
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}
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// misc overloaded methods
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// -----------------------
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void wxCheckListBox::Delete(int N)
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{
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wxCHECK_RET( N >= 0 && N < m_noItems,
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wxT("invalid index in wxListBox::Delete") );
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wxListBox::Delete(N);
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// free memory
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delete m_aItems[N];
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m_aItems.RemoveAt(N);
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}
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bool wxCheckListBox::SetFont( const wxFont &font )
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{
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size_t i;
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for ( i = 0; i < m_aItems.GetCount(); i++ )
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m_aItems[i]->SetFont(font);
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wxListBox::SetFont(font);
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return TRUE;
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}
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// create/retrieve item
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// --------------------
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// create a check list box item
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wxOwnerDrawn *wxCheckListBox::CreateLboxItem(size_t nIndex)
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{
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wxCheckListBoxItem *pItem = new wxCheckListBoxItem(this, nIndex);
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return pItem;
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}
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// return item size
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// ----------------
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bool wxCheckListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
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{
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if ( wxListBox::MSWOnMeasure(item) ) {
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MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
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// save item height
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m_nItemHeight = pStruct->itemHeight;
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// add place for the check mark
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pStruct->itemWidth += wxOwnerDrawn::GetDefaultMarginWidth();
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return TRUE;
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}
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return FALSE;
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}
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// check items
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// -----------
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bool wxCheckListBox::IsChecked(size_t uiIndex) const
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{
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wxCHECK_MSG( uiIndex < (size_t)GetCount(), FALSE, _T("bad wxCheckListBox index") );
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return GetItem(uiIndex)->IsChecked();
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}
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void wxCheckListBox::Check(size_t uiIndex, bool bCheck)
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{
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wxCHECK_RET( uiIndex < (size_t)GetCount(), _T("bad wxCheckListBox index") );
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GetItem(uiIndex)->Check(bCheck);
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}
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// process events
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// --------------
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void wxCheckListBox::OnKeyDown(wxKeyEvent& event)
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{
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// what do we do?
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enum
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{
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None,
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Toggle,
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Set,
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Clear
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} oper;
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switch ( event.GetKeyCode() )
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{
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case WXK_SPACE:
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oper = Toggle;
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break;
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case WXK_NUMPAD_ADD:
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case '+':
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oper = Set;
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break;
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case WXK_NUMPAD_SUBTRACT:
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case '-':
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oper = Clear;
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break;
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default:
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oper = None;
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}
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if ( oper != None )
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{
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wxArrayInt selections;
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int count = 0;
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if ( HasMultipleSelection() )
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{
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count = GetSelections(selections);
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}
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else
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{
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int sel = GetSelection();
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if (sel != -1)
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{
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count = 1;
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selections.Add(sel);
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}
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}
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for ( int i = 0; i < count; i++ )
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{
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wxCheckListBoxItem *item = GetItem(selections[i]);
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if ( !item )
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{
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wxFAIL_MSG( _T("no wxCheckListBoxItem?") );
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continue;
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}
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switch ( oper )
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{
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case Toggle:
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item->Toggle();
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break;
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case Set:
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case Clear:
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item->Check( oper == Set );
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break;
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default:
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wxFAIL_MSG( _T("what should this key do?") );
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}
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// we should send an event as this has been done by the user and
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// not by the program
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item->SendEvent();
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}
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}
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else // nothing to do
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{
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event.Skip();
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}
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}
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void wxCheckListBox::OnLeftClick(wxMouseEvent& event)
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{
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// clicking on the item selects it, clicking on the checkmark toggles
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if ( event.GetX() <= wxOwnerDrawn::GetDefaultMarginWidth() ) {
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int nItem = HitTest(event.GetX(), event.GetY());
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if ( nItem != wxNOT_FOUND ) {
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wxCheckListBoxItem *item = GetItem(nItem);
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item->Toggle();
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item->SendEvent();
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}
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//else: it's not an error, just click outside of client zone
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}
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else {
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// implement default behaviour: clicking on the item selects it
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event.Skip();
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}
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}
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int wxCheckListBox::DoHitTestItem(wxCoord x, wxCoord y) const
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{
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#ifdef __WIN32__
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int nItem = (int)::SendMessage
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(
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(HWND)GetHWND(),
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LB_ITEMFROMPOINT,
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0,
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MAKELPARAM(x, y)
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);
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#else // Win16
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// FIXME this doesn't work when the listbox is scrolled!
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int nItem = y / m_nItemHeight;
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#endif // Win32/16
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return nItem >= m_noItems ? wxNOT_FOUND : nItem;
|
|
}
|
|
|
|
#endif
|
|
|