3103e8a97e
Olly Betts git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34436 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1305 lines
40 KiB
C++
1305 lines
40 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: drawing.cpp
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// Purpose: shows and tests wxDC features
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// Author: Robert Roebling
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// Modified by:
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// Created: 04/01/98
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// RCS-ID: $Id$
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// Copyright: (c) Robert Roebling
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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(__APPLE__)
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#pragma implementation
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#pragma interface
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#endif
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// For compilers that support precompilation, includes "wx/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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// for all others, include the necessary headers (this file is usually all you
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// need because it includes almost all "standard" wxWidgets headers
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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/colordlg.h"
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#include "wx/image.h"
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#include "wx/artprov.h"
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// ----------------------------------------------------------------------------
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// ressources
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// ----------------------------------------------------------------------------
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// the application icon
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#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__)
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#include "mondrian.xpm"
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#endif
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// what do we show on screen (there are too many shapes to put them all on
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// screen simultaneously)
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enum ScreenToShow
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{
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Show_Default,
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Show_Text,
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Show_Lines,
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Show_Brushes,
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Show_Polygons,
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Show_Mask,
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Show_Ops,
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Show_Regions,
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Show_Circles
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};
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// ----------------------------------------------------------------------------
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// global variables
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// ----------------------------------------------------------------------------
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static wxBitmap *gs_bmpNoMask = NULL,
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*gs_bmpWithColMask = NULL,
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*gs_bmpMask = NULL,
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*gs_bmpWithMask = NULL,
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*gs_bmp4 = NULL,
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*gs_bmp4_mono = NULL,
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*gs_bmp36 = NULL;
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// ----------------------------------------------------------------------------
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// private classes
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// ----------------------------------------------------------------------------
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// Define a new application type, each program should derive a class from wxApp
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class MyApp : public wxApp
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{
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public:
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// override base class virtuals
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// ----------------------------
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// this one is called on application startup and is a good place for the app
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// initialization (doing it here and not in the ctor allows to have an error
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// return: if OnInit() returns false, the application terminates)
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virtual bool OnInit();
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virtual int OnExit() { DeleteBitmaps(); return 0; }
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protected:
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void DeleteBitmaps();
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bool LoadImages();
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};
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class MyCanvas;
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// Define a new frame type: this is going to be our main frame
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class MyFrame : public wxFrame
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{
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public:
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// ctor(s)
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MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
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// event handlers (these functions should _not_ be virtual)
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void OnQuit(wxCommandEvent& event);
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void OnAbout(wxCommandEvent& event);
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void OnClip(wxCommandEvent& event);
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void OnShow(wxCommandEvent &event);
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void OnOption(wxCommandEvent &event);
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#if wxUSE_COLOURDLG
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wxColour SelectColour();
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#endif // wxUSE_COLOURDLG
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void PrepareDC(wxDC& dc);
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int m_backgroundMode;
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int m_textureBackground;
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int m_mapMode;
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double m_xUserScale;
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double m_yUserScale;
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int m_xLogicalOrigin;
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int m_yLogicalOrigin;
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bool m_xAxisReversed,
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m_yAxisReversed;
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wxColour m_colourForeground, // these are _text_ colours
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m_colourBackground;
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wxBrush m_backgroundBrush;
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MyCanvas *m_canvas;
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private:
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// any class wishing to process wxWidgets events must use this macro
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DECLARE_EVENT_TABLE()
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};
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// define a scrollable canvas for drawing onto
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class MyCanvas: public wxScrolledWindow
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{
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public:
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MyCanvas( MyFrame *parent );
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void OnPaint(wxPaintEvent &event);
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void OnMouseMove(wxMouseEvent &event);
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void ToShow(ScreenToShow show) { m_show = show; Refresh(); }
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// set or remove the clipping region
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void Clip(bool clip) { m_clip = clip; Refresh(); }
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protected:
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void DrawTestLines( int x, int y, int width, wxDC &dc );
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void DrawTestPoly(wxDC& dc);
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void DrawTestBrushes(wxDC& dc);
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void DrawText(wxDC& dc);
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void DrawImages(wxDC& dc);
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void DrawWithLogicalOps(wxDC& dc);
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void DrawRegions(wxDC& dc);
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void DrawCircles(wxDC& dc);
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void DrawDefault(wxDC& dc);
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void DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime);
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private:
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MyFrame *m_owner;
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ScreenToShow m_show;
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wxBitmap m_smile_bmp;
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wxIcon m_std_icon;
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bool m_clip;
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DECLARE_EVENT_TABLE()
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};
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// IDs for the controls and the menu commands
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enum
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{
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// menu items
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File_Quit = 1,
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File_About,
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MenuShow_First,
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File_ShowDefault = MenuShow_First,
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File_ShowText,
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File_ShowLines,
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File_ShowBrushes,
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File_ShowPolygons,
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File_ShowMask,
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File_ShowOps,
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File_ShowRegions,
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File_ShowCircles,
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MenuShow_Last = File_ShowCircles,
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File_Clip,
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MenuOption_First,
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MapMode_Text = MenuOption_First,
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MapMode_Lometric,
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MapMode_Twips,
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MapMode_Points,
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MapMode_Metric,
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UserScale_StretchHoriz,
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UserScale_ShrinkHoriz,
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UserScale_StretchVertic,
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UserScale_ShrinkVertic,
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UserScale_Restore,
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AxisMirror_Horiz,
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AxisMirror_Vertic,
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LogicalOrigin_MoveDown,
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LogicalOrigin_MoveUp,
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LogicalOrigin_MoveLeft,
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LogicalOrigin_MoveRight,
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LogicalOrigin_Set,
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LogicalOrigin_Restore,
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#if wxUSE_COLOURDLG
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Colour_TextForeground,
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Colour_TextBackground,
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Colour_Background,
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#endif // wxUSE_COLOURDLG
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Colour_BackgroundMode,
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Colour_TextureBackgound,
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MenuOption_Last = Colour_TextureBackgound
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};
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// ----------------------------------------------------------------------------
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// event tables and other macros for wxWidgets
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// ----------------------------------------------------------------------------
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// Create a new application object: this macro will allow wxWidgets to create
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// the application object during program execution (it's better than using a
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// static object for many reasons) and also declares the accessor function
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// wxGetApp() which will return the reference of the right type (i.e. MyApp and
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// not wxApp)
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IMPLEMENT_APP(MyApp)
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// the application class
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// ----------------------------------------------------------------------------
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bool MyApp::LoadImages()
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{
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gs_bmpNoMask = new wxBitmap;
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gs_bmpWithColMask = new wxBitmap;
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gs_bmpMask = new wxBitmap;
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gs_bmpWithMask = new wxBitmap;
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gs_bmp4 = new wxBitmap;
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gs_bmp4_mono = new wxBitmap;
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gs_bmp36 = new wxBitmap;
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wxPathList pathList;
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pathList.Add(_T("."));
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pathList.Add(_T(".."));
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wxString path = pathList.FindValidPath(_T("pat4.bmp"));
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if ( !path )
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return false;
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/* 4 colour bitmap */
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gs_bmp4->LoadFile(path, wxBITMAP_TYPE_BMP);
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/* turn into mono-bitmap */
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gs_bmp4_mono->LoadFile(path, wxBITMAP_TYPE_BMP);
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wxMask* mask4 = new wxMask(*gs_bmp4_mono, *wxBLACK);
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gs_bmp4_mono->SetMask(mask4);
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path = pathList.FindValidPath(_T("pat36.bmp"));
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if ( !path )
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return false;
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gs_bmp36->LoadFile(path, wxBITMAP_TYPE_BMP);
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wxMask* mask36 = new wxMask(*gs_bmp36, *wxBLACK);
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gs_bmp36->SetMask(mask36);
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path = pathList.FindValidPath(_T("image.bmp"));
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if ( !path )
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return false;
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gs_bmpNoMask->LoadFile(path, wxBITMAP_TYPE_BMP);
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gs_bmpWithMask->LoadFile(path, wxBITMAP_TYPE_BMP);
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gs_bmpWithColMask->LoadFile(path, wxBITMAP_TYPE_BMP);
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path = pathList.FindValidPath(_T("mask.bmp"));
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if ( !path )
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return false;
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gs_bmpMask->LoadFile(path, wxBITMAP_TYPE_BMP);
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wxMask *mask = new wxMask(*gs_bmpMask, *wxBLACK);
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gs_bmpWithMask->SetMask(mask);
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mask = new wxMask(*gs_bmpWithColMask, *wxWHITE);
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gs_bmpWithColMask->SetMask(mask);
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return true;
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}
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// `Main program' equivalent: the program execution "starts" here
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bool MyApp::OnInit()
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{
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// Create the main application window
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MyFrame *frame = new MyFrame(_T("Drawing sample"),
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wxPoint(50, 50), wxSize(550, 340));
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// Show it and tell the application that it's our main window
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frame->Show(true);
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SetTopWindow(frame);
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if ( !LoadImages() )
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{
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wxLogError(wxT("Can't load one of the bitmap files needed ")
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wxT("for this sample from the current or parent ")
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wxT("directory, please copy them there."));
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// stop here
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DeleteBitmaps();
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return false;
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}
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// ok, continue
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return true;
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}
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void MyApp::DeleteBitmaps()
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{
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delete gs_bmpNoMask;
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delete gs_bmpWithColMask;
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delete gs_bmpMask;
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delete gs_bmpWithMask;
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delete gs_bmp4;
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delete gs_bmp4_mono;
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delete gs_bmp36;
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gs_bmpNoMask = NULL;
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gs_bmpWithColMask = NULL;
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gs_bmpMask = NULL;
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gs_bmpWithMask = NULL;
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gs_bmp4 = NULL;
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gs_bmp4_mono = NULL;
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gs_bmp36 = NULL;
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}
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// ----------------------------------------------------------------------------
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// MyCanvas
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// ----------------------------------------------------------------------------
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// the event tables connect the wxWidgets events with the functions (event
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// handlers) which process them.
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BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
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EVT_PAINT (MyCanvas::OnPaint)
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EVT_MOTION (MyCanvas::OnMouseMove)
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END_EVENT_TABLE()
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#include "smile.xpm"
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MyCanvas::MyCanvas(MyFrame *parent)
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: wxScrolledWindow(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize,
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wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE)
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{
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m_owner = parent;
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m_show = Show_Default;
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m_smile_bmp = wxBitmap(smile_xpm);
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m_std_icon = wxArtProvider::GetIcon(wxART_INFORMATION);
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m_clip = false;
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}
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void MyCanvas::DrawTestBrushes(wxDC& dc)
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{
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static const wxCoord WIDTH = 200;
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static const wxCoord HEIGHT = 80;
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wxCoord x = 10,
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y = 10;
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dc.SetBrush(wxBrush(*wxGREEN, wxSOLID));
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dc.DrawRectangle(x, y, WIDTH, HEIGHT);
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dc.DrawText(_T("Solid green"), x + 10, y + 10);
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y += HEIGHT;
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dc.SetBrush(wxBrush(*wxRED, wxCROSSDIAG_HATCH));
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dc.DrawRectangle(x, y, WIDTH, HEIGHT);
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dc.DrawText(_T("Hatched red"), x + 10, y + 10);
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y += HEIGHT;
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dc.SetBrush(wxBrush(*gs_bmpMask));
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dc.DrawRectangle(x, y, WIDTH, HEIGHT);
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dc.DrawText(_T("Stipple mono"), x + 10, y + 10);
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y += HEIGHT;
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dc.SetBrush(wxBrush(*gs_bmpNoMask));
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dc.DrawRectangle(x, y, WIDTH, HEIGHT);
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dc.DrawText(_T("Stipple colour"), x + 10, y + 10);
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}
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void MyCanvas::DrawTestPoly(wxDC& dc)
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{
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wxBrush brushHatch(*wxRED, wxFDIAGONAL_HATCH);
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dc.SetBrush(brushHatch);
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wxPoint star[5];
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star[0] = wxPoint(100, 60);
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star[1] = wxPoint(60, 150);
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star[2] = wxPoint(160, 100);
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star[3] = wxPoint(40, 100);
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star[4] = wxPoint(140, 150);
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dc.DrawText(_T("You should see two (irregular) stars below, the left one ")
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_T("hatched"), 10, 10);
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dc.DrawText(_T("except for the central region and the right ")
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_T("one entirely hatched"), 10, 30);
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dc.DrawText(_T("The third star only has a hatched outline"), 10, 50);
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dc.DrawPolygon(WXSIZEOF(star), star, 0, 30);
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dc.DrawPolygon(WXSIZEOF(star), star, 160, 30, wxWINDING_RULE);
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wxPoint star2[10];
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star2[0] = wxPoint(0, 100);
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star2[1] = wxPoint(-59, -81);
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star2[2] = wxPoint(95, 31);
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star2[3] = wxPoint(-95, 31);
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star2[4] = wxPoint(59, -81);
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star2[5] = wxPoint(0, 80);
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star2[6] = wxPoint(-47, -64);
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star2[7] = wxPoint(76, 24);
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star2[8] = wxPoint(-76, 24);
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star2[9] = wxPoint(47, -64);
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int count[2] = {5, 5};
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dc.DrawPolyPolygon(WXSIZEOF(count), count, star2, 450, 150);
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}
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void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc )
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{
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dc.SetPen( wxPen( wxT("black"), width, wxSOLID) );
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dc.SetBrush( *wxRED_BRUSH );
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dc.DrawText(wxString::Format(wxT("Testing lines of width %d"), width), x + 10, y - 10);
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dc.DrawRectangle( x+10, y+10, 100, 190 );
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dc.DrawText(_T("Solid/dot/short dash/long dash/dot dash"), x + 150, y + 10);
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dc.SetPen( wxPen( wxT("black"), width, wxSOLID) );
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dc.DrawLine( x+20, y+20, 100, y+20 );
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dc.SetPen( wxPen( wxT("black"), width, wxDOT) );
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dc.DrawLine( x+20, y+30, 100, y+30 );
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dc.SetPen( wxPen( wxT("black"), width, wxSHORT_DASH) );
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dc.DrawLine( x+20, y+40, 100, y+40 );
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dc.SetPen( wxPen( wxT("black"), width, wxLONG_DASH) );
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dc.DrawLine( x+20, y+50, 100, y+50 );
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dc.SetPen( wxPen( wxT("black"), width, wxDOT_DASH) );
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dc.DrawLine( x+20, y+60, 100, y+60 );
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dc.DrawText(_T("Misc hatches"), x + 150, y + 70);
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dc.SetPen( wxPen( wxT("black"), width, wxBDIAGONAL_HATCH) );
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dc.DrawLine( x+20, y+70, 100, y+70 );
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dc.SetPen( wxPen( wxT("black"), width, wxCROSSDIAG_HATCH) );
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dc.DrawLine( x+20, y+80, 100, y+80 );
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dc.SetPen( wxPen( wxT("black"), width, wxFDIAGONAL_HATCH) );
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dc.DrawLine( x+20, y+90, 100, y+90 );
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dc.SetPen( wxPen( wxT("black"), width, wxCROSS_HATCH) );
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dc.DrawLine( x+20, y+100, 100, y+100 );
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dc.SetPen( wxPen( wxT("black"), width, wxHORIZONTAL_HATCH) );
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dc.DrawLine( x+20, y+110, 100, y+110 );
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dc.SetPen( wxPen( wxT("black"), width, wxVERTICAL_HATCH) );
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dc.DrawLine( x+20, y+120, 100, y+120 );
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dc.DrawText(_T("User dash"), x + 150, y + 140);
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wxPen ud( wxT("black"), width, wxUSER_DASH );
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wxDash dash1[6];
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dash1[0] = 8; // Long dash <---------+
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dash1[1] = 2; // Short gap |
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dash1[2] = 3; // Short dash |
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dash1[3] = 2; // Short gap |
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dash1[4] = 3; // Short dash |
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dash1[5] = 2; // Short gap and repeat +
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ud.SetDashes( 6, dash1 );
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dc.SetPen( ud );
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dc.DrawLine( x+20, y+140, 100, y+140 );
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dash1[0] = 5; // Make first dash shorter
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ud.SetDashes( 6, dash1 );
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dc.SetPen( ud );
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dc.DrawLine( x+20, y+150, 100, y+150 );
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dash1[2] = 5; // Make second dash longer
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ud.SetDashes( 6, dash1 );
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dc.SetPen( ud );
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dc.DrawLine( x+20, y+160, 100, y+160 );
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dash1[4] = 5; // Make third dash longer
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ud.SetDashes( 6, dash1 );
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dc.SetPen( ud );
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dc.DrawLine( x+20, y+170, 100, y+170 );
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}
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void MyCanvas::DrawDefault(wxDC& dc)
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{
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// mark the origin
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dc.DrawCircle(0, 0, 10);
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#if !wxMAC_USE_CORE_GRAPHICS
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// GetPixel and FloodFill not supported by Mac OS X CoreGraphics
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// (FloodFill uses Blit from a non-wxMemoryDC)
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//flood fill using brush, starting at 1,1 and replacing whatever colour we find there
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dc.SetBrush(wxBrush(wxColour(128,128,0), wxSOLID));
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wxColour tmpColour ;
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dc.GetPixel(1,1, &tmpColour);
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dc.FloodFill(1,1, tmpColour, wxFLOOD_SURFACE);
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#endif
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dc.DrawCheckMark(5, 80, 15, 15);
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dc.DrawCheckMark(25, 80, 30, 30);
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dc.DrawCheckMark(60, 80, 60, 60);
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// this is the test for "blitting bitmap into DC damages selected brush" bug
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wxCoord rectSize = m_std_icon.GetWidth() + 10;
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wxCoord x = 100;
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dc.SetPen(*wxTRANSPARENT_PEN);
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dc.SetBrush( *wxGREEN_BRUSH );
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dc.DrawRectangle(x, 10, rectSize, rectSize);
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dc.DrawBitmap(m_std_icon, x + 5, 15, true);
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x += rectSize + 10;
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dc.DrawRectangle(x, 10, rectSize, rectSize);
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dc.DrawIcon(m_std_icon, x + 5, 15);
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x += rectSize + 10;
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dc.DrawRectangle(x, 10, rectSize, rectSize);
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// test for "transparent" bitmap drawing (it intersects with the last
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// rectangle above)
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//dc.SetBrush( *wxTRANSPARENT_BRUSH );
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if (m_smile_bmp.Ok())
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dc.DrawBitmap(m_smile_bmp, x + rectSize - 20, rectSize - 10, true);
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dc.SetBrush( *wxBLACK_BRUSH );
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dc.DrawRectangle( 0, 160, 1000, 300 );
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// draw lines
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wxBitmap bitmap(20,70);
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wxMemoryDC memdc;
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memdc.SelectObject( bitmap );
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memdc.SetBrush( *wxBLACK_BRUSH );
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memdc.SetPen( *wxWHITE_PEN );
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memdc.DrawRectangle(0,0,20,70);
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memdc.DrawLine( 10,0,10,70 );
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// to the right
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wxPen pen = *wxRED_PEN;
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memdc.SetPen(pen);
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memdc.DrawLine( 10, 5,10, 5 );
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memdc.DrawLine( 10,10,11,10 );
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memdc.DrawLine( 10,15,12,15 );
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memdc.DrawLine( 10,20,13,20 );
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/*
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memdc.SetPen(*wxRED_PEN);
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memdc.DrawLine( 12, 5,12, 5 );
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memdc.DrawLine( 12,10,13,10 );
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memdc.DrawLine( 12,15,14,15 );
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memdc.DrawLine( 12,20,15,20 );
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*/
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// same to the left
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memdc.DrawLine( 10,25,10,25 );
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memdc.DrawLine( 10,30, 9,30 );
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memdc.DrawLine( 10,35, 8,35 );
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memdc.DrawLine( 10,40, 7,40 );
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// XOR draw lines
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dc.SetPen(*wxWHITE_PEN);
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memdc.SetLogicalFunction( wxINVERT );
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memdc.SetPen( *wxWHITE_PEN );
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memdc.DrawLine( 10,50,10,50 );
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memdc.DrawLine( 10,55,11,55 );
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memdc.DrawLine( 10,60,12,60 );
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memdc.DrawLine( 10,65,13,65 );
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memdc.DrawLine( 12,50,12,50 );
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memdc.DrawLine( 12,55,13,55 );
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memdc.DrawLine( 12,60,14,60 );
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memdc.DrawLine( 12,65,15,65 );
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memdc.SelectObject( wxNullBitmap );
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dc.DrawBitmap( bitmap, 10, 170 );
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wxImage image = bitmap.ConvertToImage();
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image.Rescale( 60,210 );
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bitmap = wxBitmap(image);
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dc.DrawBitmap( bitmap, 50, 170 );
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// test the rectangle outline drawing - there should be one pixel between
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// the rect and the lines
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dc.SetPen(*wxWHITE_PEN);
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dc.SetBrush( *wxTRANSPARENT_BRUSH );
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dc.DrawRectangle(150, 170, 49, 29);
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dc.DrawRectangle(200, 170, 49, 29);
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dc.SetPen(*wxWHITE_PEN);
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dc.DrawLine(250, 210, 250, 170);
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dc.DrawLine(260, 200, 150, 200);
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// test the rectangle filled drawing - there should be one pixel between
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// the rect and the lines
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dc.SetPen(*wxTRANSPARENT_PEN);
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dc.SetBrush( *wxWHITE_BRUSH );
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dc.DrawRectangle(300, 170, 49, 29);
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dc.DrawRectangle(350, 170, 49, 29);
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dc.SetPen(*wxWHITE_PEN);
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dc.DrawLine(400, 170, 400, 210);
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dc.DrawLine(300, 200, 410, 200);
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// a few more tests of this kind
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dc.SetPen(*wxRED_PEN);
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dc.SetBrush( *wxWHITE_BRUSH );
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dc.DrawRectangle(300, 220, 1, 1);
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dc.DrawRectangle(310, 220, 2, 2);
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dc.DrawRectangle(320, 220, 3, 3);
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dc.DrawRectangle(330, 220, 4, 4);
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dc.SetPen(*wxTRANSPARENT_PEN);
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dc.SetBrush( *wxWHITE_BRUSH );
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dc.DrawRectangle(300, 230, 1, 1);
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dc.DrawRectangle(310, 230, 2, 2);
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dc.DrawRectangle(320, 230, 3, 3);
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dc.DrawRectangle(330, 230, 4, 4);
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// and now for filled rect with outline
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dc.SetPen(*wxRED_PEN);
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dc.SetBrush( *wxWHITE_BRUSH );
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dc.DrawRectangle(500, 170, 49, 29);
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dc.DrawRectangle(550, 170, 49, 29);
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dc.SetPen(*wxWHITE_PEN);
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dc.DrawLine(600, 170, 600, 210);
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dc.DrawLine(500, 200, 610, 200);
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// test the rectangle outline drawing - there should be one pixel between
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// the rect and the lines
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dc.SetPen(*wxWHITE_PEN);
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dc.SetBrush( *wxTRANSPARENT_BRUSH );
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dc.DrawRoundedRectangle(150, 270, 49, 29, 6);
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dc.DrawRoundedRectangle(200, 270, 49, 29, 6);
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dc.SetPen(*wxWHITE_PEN);
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dc.DrawLine(250, 270, 250, 310);
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dc.DrawLine(150, 300, 260, 300);
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// test the rectangle filled drawing - there should be one pixel between
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// the rect and the lines
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dc.SetPen(*wxTRANSPARENT_PEN);
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dc.SetBrush( *wxWHITE_BRUSH );
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dc.DrawRoundedRectangle(300, 270, 49, 29, 6);
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dc.DrawRoundedRectangle(350, 270, 49, 29, 6);
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dc.SetPen(*wxWHITE_PEN);
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dc.DrawLine(400, 270, 400, 310);
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dc.DrawLine(300, 300, 410, 300);
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// Added by JACS to demonstrate bizarre behaviour.
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// With a size of 70, we get a missing red RHS,
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// and the height is too small, so we get yellow
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// showing. With a size of 40, it draws as expected:
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// it just shows a white rectangle with red outline.
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int totalWidth = 70;
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int totalHeight = 70;
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wxBitmap bitmap2(totalWidth, totalHeight);
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wxMemoryDC memdc2;
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memdc2.SelectObject(bitmap2);
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wxColour clr(255, 255, 0);
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wxBrush yellowBrush(clr, wxSOLID);
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memdc2.SetBackground(yellowBrush);
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memdc2.Clear();
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wxPen yellowPen(clr, 1, wxSOLID);
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// Now draw a white rectangle with red outline. It should
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// entirely eclipse the yellow background.
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memdc2.SetPen(*wxRED_PEN);
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memdc2.SetBrush(*wxWHITE_BRUSH);
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memdc2.DrawRectangle(0, 0, totalWidth, totalHeight);
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memdc2.SetPen(wxNullPen);
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memdc2.SetBrush(wxNullBrush);
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memdc2.SelectObject(wxNullBitmap);
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dc.DrawBitmap(bitmap2, 500, 270);
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// Repeat, but draw directly on dc
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// Draw a yellow rectangle filling the bitmap
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x = 600; int y = 270;
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dc.SetPen(yellowPen);
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dc.SetBrush(yellowBrush);
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dc.DrawRectangle(x, y, totalWidth, totalHeight);
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// Now draw a white rectangle with red outline. It should
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// entirely eclipse the yellow background.
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dc.SetPen(*wxRED_PEN);
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dc.SetBrush(*wxWHITE_BRUSH);
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dc.DrawRectangle(x, y, totalWidth, totalHeight);
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}
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void MyCanvas::DrawText(wxDC& dc)
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{
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// set underlined font for testing
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dc.SetFont( wxFont(12, wxMODERN, wxNORMAL, wxNORMAL, true) );
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dc.DrawText( _T("This is text"), 110, 10 );
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dc.DrawRotatedText( _T("That is text"), 20, 10, -45 );
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// use wxSWISS_FONT and not wxNORMAL_FONT as the latter can't be rotated
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// under Win9x (it is not TrueType)
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dc.SetFont( *wxSWISS_FONT );
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wxString text;
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dc.SetBackgroundMode(wxTRANSPARENT);
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for ( int n = -180; n < 180; n += 30 )
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{
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text.Printf(wxT(" %d rotated text"), n);
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dc.DrawRotatedText(text , 400, 400, n);
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}
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dc.SetFont( wxFont( 18, wxSWISS, wxNORMAL, wxNORMAL ) );
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dc.DrawText( _T("This is Swiss 18pt text."), 110, 40 );
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long length;
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long height;
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long descent;
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dc.GetTextExtent( _T("This is Swiss 18pt text."), &length, &height, &descent );
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text.Printf( wxT("Dimensions are length %ld, height %ld, descent %ld"), length, height, descent );
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dc.DrawText( text, 110, 80 );
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text.Printf( wxT("CharHeight() returns: %d"), dc.GetCharHeight() );
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dc.DrawText( text, 110, 120 );
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dc.DrawRectangle( 100, 40, 4, height );
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// test the logical function effect
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wxCoord y = 150;
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dc.SetLogicalFunction(wxINVERT);
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dc.DrawText( _T("There should be no text below"), 110, 150 );
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dc.DrawRectangle( 110, y, 100, height );
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// twice drawn inverted should result in invisible
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y += height;
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dc.DrawText( _T("Invisible text"), 110, y );
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dc.DrawRectangle( 110, y, 100, height );
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dc.DrawText( _T("Invisible text"), 110, y );
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dc.DrawRectangle( 110, y, 100, height );
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dc.SetLogicalFunction(wxCOPY);
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y += height;
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dc.DrawRectangle( 110, y, 100, height );
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dc.DrawText( _T("Visible text"), 110, y );
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}
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static const struct
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{
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const wxChar *name;
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int rop;
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} rasterOperations[] =
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{
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{ wxT("wxAND"), wxAND },
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{ wxT("wxAND_INVERT"), wxAND_INVERT },
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{ wxT("wxAND_REVERSE"), wxAND_REVERSE },
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{ wxT("wxCLEAR"), wxCLEAR },
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{ wxT("wxCOPY"), wxCOPY },
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{ wxT("wxEQUIV"), wxEQUIV },
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{ wxT("wxINVERT"), wxINVERT },
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{ wxT("wxNAND"), wxNAND },
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{ wxT("wxNO_OP"), wxNO_OP },
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{ wxT("wxOR"), wxOR },
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{ wxT("wxOR_INVERT"), wxOR_INVERT },
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{ wxT("wxOR_REVERSE"), wxOR_REVERSE },
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{ wxT("wxSET"), wxSET },
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{ wxT("wxSRC_INVERT"), wxSRC_INVERT },
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{ wxT("wxXOR"), wxXOR },
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};
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void MyCanvas::DrawImages(wxDC& dc)
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{
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dc.DrawText(_T("original image"), 0, 0);
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dc.DrawBitmap(*gs_bmpNoMask, 0, 20, 0);
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dc.DrawText(_T("with colour mask"), 0, 100);
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dc.DrawBitmap(*gs_bmpWithColMask, 0, 120, true);
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dc.DrawText(_T("the mask image"), 0, 200);
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dc.DrawBitmap(*gs_bmpMask, 0, 220, 0);
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dc.DrawText(_T("masked image"), 0, 300);
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dc.DrawBitmap(*gs_bmpWithMask, 0, 320, true);
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int cx = gs_bmpWithColMask->GetWidth(),
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cy = gs_bmpWithColMask->GetHeight();
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wxMemoryDC memDC;
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for ( size_t n = 0; n < WXSIZEOF(rasterOperations); n++ )
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{
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wxCoord x = 120 + 150*(n%4),
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y = 20 + 100*(n/4);
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dc.DrawText(rasterOperations[n].name, x, y - 20);
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memDC.SelectObject(*gs_bmpWithColMask);
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dc.Blit(x, y, cx, cy, &memDC, 0, 0, rasterOperations[n].rop, true);
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}
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}
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void MyCanvas::DrawWithLogicalOps(wxDC& dc)
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{
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static const wxCoord w = 60;
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static const wxCoord h = 60;
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// reuse the text colour here
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dc.SetPen(wxPen(m_owner->m_colourForeground, 1, wxSOLID));
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dc.SetBrush(*wxTRANSPARENT_BRUSH);
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size_t n;
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for ( n = 0; n < WXSIZEOF(rasterOperations); n++ )
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{
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wxCoord x = 20 + 150*(n%4),
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y = 20 + 100*(n/4);
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dc.DrawText(rasterOperations[n].name, x, y - 20);
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dc.SetLogicalFunction(rasterOperations[n].rop);
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dc.DrawRectangle(x, y, w, h);
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dc.DrawLine(x, y, x + w, y + h);
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dc.DrawLine(x + w, y, x, y + h);
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}
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// now some filled rectangles
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dc.SetBrush(wxBrush(m_owner->m_colourForeground, wxSOLID));
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for ( n = 0; n < WXSIZEOF(rasterOperations); n++ )
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{
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wxCoord x = 20 + 150*(n%4),
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y = 500 + 100*(n/4);
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dc.DrawText(rasterOperations[n].name, x, y - 20);
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dc.SetLogicalFunction(rasterOperations[n].rop);
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dc.DrawRectangle(x, y, w, h);
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}
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}
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void MyCanvas::DrawCircles(wxDC& dc)
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{
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int x = 100,
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y = 100,
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r = 20;
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dc.DrawText(_T("Some circles"), 0, y);
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dc.DrawCircle(x, y, r);
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dc.DrawCircle(x + 2*r, y, r);
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dc.DrawCircle(x + 4*r, y, r);
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y += 2*r;
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dc.DrawText(_T("And ellipses"), 0, y);
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dc.DrawEllipse(x - r, y, 2*r, r);
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dc.DrawEllipse(x + r, y, 2*r, r);
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dc.DrawEllipse(x + 3*r, y, 2*r, r);
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y += 2*r;
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dc.DrawText(_T("And arcs"), 0, y);
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dc.DrawArc(x - r, y, x + r, y, x, y);
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dc.DrawArc(x + 4*r, y, x + 2*r, y, x + 3*r, y);
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dc.DrawArc(x + 5*r, y, x + 5*r, y, x + 6*r, y);
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y += 2*r;
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dc.DrawEllipticArc(x - r, y, 2*r, r, 0, 90);
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dc.DrawEllipticArc(x + r, y, 2*r, r, 90, 180);
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dc.DrawEllipticArc(x + 3*r, y, 2*r, r, 180, 270);
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dc.DrawEllipticArc(x + 5*r, y, 2*r, r, 270, 360);
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}
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void MyCanvas::DrawRegions(wxDC& dc)
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{
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dc.DrawText(_T("You should see a red rect partly covered by a cyan one ")
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_T("on the left"), 10, 5);
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dc.DrawText(_T("and 5 smileys from which 4 are partially clipped on the right"),
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10, 5 + dc.GetCharHeight());
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dc.DrawText(_T("The second copy should be identical but right part of it ")
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_T("should be offset by 10 pixels."),
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10, 5 + 2*dc.GetCharHeight());
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DrawRegionsHelper(dc, 10, true);
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DrawRegionsHelper(dc, 350, false);
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}
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void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime)
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{
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wxCoord y = 100;
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dc.DestroyClippingRegion();
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dc.SetBrush( *wxWHITE_BRUSH );
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dc.SetPen( *wxTRANSPARENT_PEN );
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dc.DrawRectangle( x, y, 310, 310 );
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dc.SetClippingRegion( x + 10, y + 10, 100, 270 );
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dc.SetBrush( *wxRED_BRUSH );
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dc.DrawRectangle( x, y, 310, 310 );
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dc.SetClippingRegion( x + 10, y + 10, 100, 100 );
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dc.SetBrush( *wxCYAN_BRUSH );
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dc.DrawRectangle( x, y, 310, 310 );
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dc.DestroyClippingRegion();
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wxRegion region(x + 110, y + 20, 100, 270);
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#if !defined(__WXMOTIF__) && !defined(__WXMAC__)
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if ( !firstTime )
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region.Offset(10, 10);
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#endif
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dc.SetClippingRegion(region);
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dc.SetBrush( *wxGREY_BRUSH );
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dc.DrawRectangle( x, y, 310, 310 );
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if (m_smile_bmp.Ok())
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{
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dc.DrawBitmap( m_smile_bmp, x + 150, y + 150, true );
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dc.DrawBitmap( m_smile_bmp, x + 130, y + 10, true );
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dc.DrawBitmap( m_smile_bmp, x + 130, y + 280, true );
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dc.DrawBitmap( m_smile_bmp, x + 100, y + 70, true );
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dc.DrawBitmap( m_smile_bmp, x + 200, y + 70, true );
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}
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}
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void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
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{
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wxPaintDC dc(this);
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PrepareDC(dc);
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m_owner->PrepareDC(dc);
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dc.SetBackgroundMode( m_owner->m_backgroundMode );
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if ( m_owner->m_backgroundBrush.Ok() )
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dc.SetBackground( m_owner->m_backgroundBrush );
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if ( m_owner->m_colourForeground.Ok() )
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dc.SetTextForeground( m_owner->m_colourForeground );
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if ( m_owner->m_colourBackground.Ok() )
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dc.SetTextBackground( m_owner->m_colourBackground );
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if ( m_owner->m_textureBackground) {
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if ( ! m_owner->m_backgroundBrush.Ok() ) {
|
|
wxColour clr(0,128,0);
|
|
wxBrush b(clr, wxSOLID);
|
|
dc.SetBackground(b);
|
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}
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|
}
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|
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if ( m_clip )
|
|
dc.SetClippingRegion(100, 100, 100, 100);
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|
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dc.Clear();
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|
|
if ( m_owner->m_textureBackground )
|
|
{
|
|
dc.SetPen(*wxMEDIUM_GREY_PEN);
|
|
for ( int i = 0; i < 200; i++ )
|
|
dc.DrawLine(0, i*10, i*10, 0);
|
|
}
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|
|
switch ( m_show )
|
|
{
|
|
case Show_Default:
|
|
DrawDefault(dc);
|
|
break;
|
|
|
|
case Show_Circles:
|
|
DrawCircles(dc);
|
|
break;
|
|
|
|
case Show_Regions:
|
|
DrawRegions(dc);
|
|
break;
|
|
|
|
case Show_Text:
|
|
DrawText(dc);
|
|
break;
|
|
|
|
case Show_Lines:
|
|
DrawTestLines( 0, 100, 0, dc );
|
|
DrawTestLines( 0, 320, 1, dc );
|
|
DrawTestLines( 0, 540, 2, dc );
|
|
DrawTestLines( 0, 760, 6, dc );
|
|
break;
|
|
|
|
case Show_Brushes:
|
|
DrawTestBrushes(dc);
|
|
break;
|
|
|
|
case Show_Polygons:
|
|
DrawTestPoly(dc);
|
|
break;
|
|
|
|
case Show_Mask:
|
|
DrawImages(dc);
|
|
break;
|
|
|
|
case Show_Ops:
|
|
DrawWithLogicalOps(dc);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void MyCanvas::OnMouseMove(wxMouseEvent &event)
|
|
{
|
|
#if wxUSE_STATUSBAR
|
|
wxClientDC dc(this);
|
|
PrepareDC(dc);
|
|
m_owner->PrepareDC(dc);
|
|
|
|
wxPoint pos = event.GetPosition();
|
|
long x = dc.DeviceToLogicalX( pos.x );
|
|
long y = dc.DeviceToLogicalY( pos.y );
|
|
wxString str;
|
|
str.Printf( wxT("Current mouse position: %d,%d"), (int)x, (int)y );
|
|
m_owner->SetStatusText( str );
|
|
#else
|
|
wxUnusedVar(event);
|
|
#endif // wxUSE_STATUSBAR
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// MyFrame
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// the event tables connect the wxWidgets events with the functions (event
|
|
// handlers) which process them. It can be also done at run-time, but for the
|
|
// simple menu events like this the static method is much simpler.
|
|
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
|
|
EVT_MENU (File_Quit, MyFrame::OnQuit)
|
|
EVT_MENU (File_About, MyFrame::OnAbout)
|
|
EVT_MENU (File_Clip, MyFrame::OnClip)
|
|
|
|
EVT_MENU_RANGE(MenuShow_First, MenuShow_Last, MyFrame::OnShow)
|
|
|
|
EVT_MENU_RANGE(MenuOption_First, MenuOption_Last, MyFrame::OnOption)
|
|
END_EVENT_TABLE()
|
|
|
|
// frame constructor
|
|
MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
|
|
: wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size,
|
|
wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
|
|
{
|
|
// set the frame icon
|
|
SetIcon(wxICON(mondrian));
|
|
|
|
wxMenu *menuFile = new wxMenu;
|
|
menuFile->Append(File_ShowDefault, _T("&Default screen\tF1"));
|
|
menuFile->Append(File_ShowText, _T("&Text screen\tF2"));
|
|
menuFile->Append(File_ShowLines, _T("&Lines screen\tF3"));
|
|
menuFile->Append(File_ShowBrushes, _T("&Brushes screen\tF4"));
|
|
menuFile->Append(File_ShowPolygons, _T("&Polygons screen\tF5"));
|
|
menuFile->Append(File_ShowMask, _T("&Mask screen\tF6"));
|
|
menuFile->Append(File_ShowOps, _T("&ROP screen\tF7"));
|
|
menuFile->Append(File_ShowRegions, _T("Re&gions screen\tF8"));
|
|
menuFile->Append(File_ShowCircles, _T("&Circles screen\tF9"));
|
|
menuFile->AppendSeparator();
|
|
menuFile->AppendCheckItem(File_Clip, _T("&Clip\tCtrl-C"), _T("Clip/unclip drawing"));
|
|
menuFile->AppendSeparator();
|
|
menuFile->Append(File_About, _T("&About...\tCtrl-A"), _T("Show about dialog"));
|
|
menuFile->AppendSeparator();
|
|
menuFile->Append(File_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
|
|
|
|
wxMenu *menuMapMode = new wxMenu;
|
|
menuMapMode->Append( MapMode_Text, _T("&TEXT map mode") );
|
|
menuMapMode->Append( MapMode_Lometric, _T("&LOMETRIC map mode") );
|
|
menuMapMode->Append( MapMode_Twips, _T("T&WIPS map mode") );
|
|
menuMapMode->Append( MapMode_Points, _T("&POINTS map mode") );
|
|
menuMapMode->Append( MapMode_Metric, _T("&METRIC map mode") );
|
|
|
|
wxMenu *menuUserScale = new wxMenu;
|
|
menuUserScale->Append( UserScale_StretchHoriz, _T("Stretch &horizontally\tCtrl-H") );
|
|
menuUserScale->Append( UserScale_ShrinkHoriz, _T("Shrin&k horizontally\tCtrl-G") );
|
|
menuUserScale->Append( UserScale_StretchVertic, _T("Stretch &vertically\tCtrl-V") );
|
|
menuUserScale->Append( UserScale_ShrinkVertic, _T("&Shrink vertically\tCtrl-W") );
|
|
menuUserScale->AppendSeparator();
|
|
menuUserScale->Append( UserScale_Restore, _T("&Restore to normal\tCtrl-0") );
|
|
|
|
wxMenu *menuAxis = new wxMenu;
|
|
menuAxis->AppendCheckItem( AxisMirror_Horiz, _T("Mirror horizontally\tCtrl-M") );
|
|
menuAxis->AppendCheckItem( AxisMirror_Vertic, _T("Mirror vertically\tCtrl-N") );
|
|
|
|
wxMenu *menuLogical = new wxMenu;
|
|
menuLogical->Append( LogicalOrigin_MoveDown, _T("Move &down\tCtrl-D") );
|
|
menuLogical->Append( LogicalOrigin_MoveUp, _T("Move &up\tCtrl-U") );
|
|
menuLogical->Append( LogicalOrigin_MoveLeft, _T("Move &right\tCtrl-L") );
|
|
menuLogical->Append( LogicalOrigin_MoveRight, _T("Move &left\tCtrl-R") );
|
|
menuLogical->AppendSeparator();
|
|
menuLogical->Append( LogicalOrigin_Set, _T("Set to (&100, 100)\tShift-Ctrl-1") );
|
|
menuLogical->Append( LogicalOrigin_Restore, _T("&Restore to normal\tShift-Ctrl-0") );
|
|
|
|
wxMenu *menuColour = new wxMenu;
|
|
#if wxUSE_COLOURDLG
|
|
menuColour->Append( Colour_TextForeground, _T("Text &foreground...") );
|
|
menuColour->Append( Colour_TextBackground, _T("Text &background...") );
|
|
menuColour->Append( Colour_Background, _T("Background &colour...") );
|
|
#endif // wxUSE_COLOURDLG
|
|
menuColour->AppendCheckItem( Colour_BackgroundMode, _T("&Opaque/transparent\tCtrl-B") );
|
|
menuColour->AppendCheckItem( Colour_TextureBackgound, _T("Draw textured back&ground\tCtrl-T") );
|
|
|
|
// now append the freshly created menu to the menu bar...
|
|
wxMenuBar *menuBar = new wxMenuBar;
|
|
menuBar->Append(menuFile, _T("&File"));
|
|
menuBar->Append(menuMapMode, _T("&Mode"));
|
|
menuBar->Append(menuUserScale, _T("&Scale"));
|
|
menuBar->Append(menuAxis, _T("&Axis"));
|
|
menuBar->Append(menuLogical, _T("&Origin"));
|
|
menuBar->Append(menuColour, _T("&Colours"));
|
|
|
|
// ... and attach this menu bar to the frame
|
|
SetMenuBar(menuBar);
|
|
|
|
#if wxUSE_STATUSBAR
|
|
CreateStatusBar(2);
|
|
SetStatusText(_T("Welcome to wxWidgets!"));
|
|
#endif // wxUSE_STATUSBAR
|
|
|
|
m_mapMode = wxMM_TEXT;
|
|
m_xUserScale = 1.0;
|
|
m_yUserScale = 1.0;
|
|
m_xLogicalOrigin = 0;
|
|
m_yLogicalOrigin = 0;
|
|
m_xAxisReversed =
|
|
m_yAxisReversed = false;
|
|
m_backgroundMode = wxSOLID;
|
|
m_colourForeground = *wxRED;
|
|
m_colourBackground = *wxBLUE;
|
|
m_textureBackground = false;
|
|
|
|
m_canvas = new MyCanvas( this );
|
|
m_canvas->SetScrollbars( 10, 10, 100, 240 );
|
|
}
|
|
|
|
// event handlers
|
|
|
|
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
// true is to force the frame to close
|
|
Close(true);
|
|
}
|
|
|
|
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
wxString msg;
|
|
msg.Printf( wxT("This is the about dialog of the drawing sample.\n")
|
|
wxT("This sample tests various primitive drawing functions\n")
|
|
wxT("(without any attempts to prevent flicker).\n")
|
|
wxT("Copyright (c) Robert Roebling 1999")
|
|
);
|
|
|
|
wxMessageBox(msg, _T("About Drawing"), wxOK | wxICON_INFORMATION, this);
|
|
}
|
|
|
|
void MyFrame::OnClip(wxCommandEvent& event)
|
|
{
|
|
m_canvas->Clip(event.IsChecked());
|
|
}
|
|
|
|
void MyFrame::OnShow(wxCommandEvent& event)
|
|
{
|
|
m_canvas->ToShow((ScreenToShow)(event.GetId() - MenuShow_First));
|
|
}
|
|
|
|
void MyFrame::OnOption(wxCommandEvent& event)
|
|
{
|
|
switch (event.GetId())
|
|
{
|
|
case MapMode_Text:
|
|
m_mapMode = wxMM_TEXT;
|
|
break;
|
|
case MapMode_Lometric:
|
|
m_mapMode = wxMM_LOMETRIC;
|
|
break;
|
|
case MapMode_Twips:
|
|
m_mapMode = wxMM_TWIPS;
|
|
break;
|
|
case MapMode_Points:
|
|
m_mapMode = wxMM_POINTS;
|
|
break;
|
|
case MapMode_Metric:
|
|
m_mapMode = wxMM_METRIC;
|
|
break;
|
|
|
|
case LogicalOrigin_MoveDown:
|
|
m_yLogicalOrigin += 10;
|
|
break;
|
|
case LogicalOrigin_MoveUp:
|
|
m_yLogicalOrigin -= 10;
|
|
break;
|
|
case LogicalOrigin_MoveLeft:
|
|
m_xLogicalOrigin += 10;
|
|
break;
|
|
case LogicalOrigin_MoveRight:
|
|
m_xLogicalOrigin -= 10;
|
|
break;
|
|
case LogicalOrigin_Set:
|
|
m_xLogicalOrigin =
|
|
m_yLogicalOrigin = -100;
|
|
break;
|
|
case LogicalOrigin_Restore:
|
|
m_xLogicalOrigin =
|
|
m_yLogicalOrigin = 0;
|
|
break;
|
|
|
|
case UserScale_StretchHoriz:
|
|
m_xUserScale *= 1.10;
|
|
break;
|
|
case UserScale_ShrinkHoriz:
|
|
m_xUserScale /= 1.10;
|
|
break;
|
|
case UserScale_StretchVertic:
|
|
m_yUserScale *= 1.10;
|
|
break;
|
|
case UserScale_ShrinkVertic:
|
|
m_yUserScale /= 1.10;
|
|
break;
|
|
case UserScale_Restore:
|
|
m_xUserScale =
|
|
m_yUserScale = 1.0;
|
|
break;
|
|
|
|
case AxisMirror_Vertic:
|
|
m_yAxisReversed = !m_yAxisReversed;
|
|
break;
|
|
case AxisMirror_Horiz:
|
|
m_xAxisReversed = !m_xAxisReversed;
|
|
break;
|
|
|
|
#if wxUSE_COLOURDLG
|
|
case Colour_TextForeground:
|
|
m_colourForeground = SelectColour();
|
|
break;
|
|
case Colour_TextBackground:
|
|
m_colourBackground = SelectColour();
|
|
break;
|
|
case Colour_Background:
|
|
{
|
|
wxColour col = SelectColour();
|
|
if ( col.Ok() )
|
|
{
|
|
m_backgroundBrush.SetColour(col);
|
|
}
|
|
}
|
|
break;
|
|
#endif // wxUSE_COLOURDLG
|
|
|
|
case Colour_BackgroundMode:
|
|
m_backgroundMode = m_backgroundMode == wxSOLID ? wxTRANSPARENT
|
|
: wxSOLID;
|
|
break;
|
|
|
|
case Colour_TextureBackgound:
|
|
m_textureBackground = ! m_textureBackground;
|
|
break;
|
|
|
|
default:
|
|
// skip Refresh()
|
|
return;
|
|
}
|
|
|
|
m_canvas->Refresh();
|
|
}
|
|
|
|
void MyFrame::PrepareDC(wxDC& dc)
|
|
{
|
|
dc.SetLogicalOrigin( m_xLogicalOrigin, m_yLogicalOrigin );
|
|
dc.SetAxisOrientation( !m_xAxisReversed, m_yAxisReversed );
|
|
dc.SetUserScale( m_xUserScale, m_yUserScale );
|
|
dc.SetMapMode( m_mapMode );
|
|
}
|
|
|
|
#if wxUSE_COLOURDLG
|
|
wxColour MyFrame::SelectColour()
|
|
{
|
|
wxColour col;
|
|
wxColourData data;
|
|
wxColourDialog dialog(this, &data);
|
|
|
|
if ( dialog.ShowModal() == wxID_OK )
|
|
{
|
|
col = dialog.GetColourData().GetColour();
|
|
}
|
|
|
|
return col;
|
|
}
|
|
#endif // wxUSE_COLOURDLG
|
|
|