X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e1208c3103734c8581c9854c344b97323e381897..34326da778583ca8eab95f2e41738da2852a5a16:/samples/drawing/drawing.cpp diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp index 7e6f40b2cb..308ea82388 100644 --- a/samples/drawing/drawing.cpp +++ b/samples/drawing/drawing.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: drawing.cpp +// Name: samples/drawing/drawing.cpp // Purpose: shows and tests wxDC features // Author: Robert Roebling // Modified by: @@ -17,11 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "drawing.cpp" - #pragma interface "drawing.cpp" -#endif - // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" @@ -30,51 +25,42 @@ #endif // for all others, include the necessary headers (this file is usually all you -// need because it includes almost all "standard" wxWindows headers +// need because it includes almost all "standard" wxWidgets headers #ifndef WX_PRECOMP #include "wx/wx.h" #endif #include "wx/colordlg.h" #include "wx/image.h" +#include "wx/artprov.h" +#include "wx/dcgraph.h" +#include "wx/overlay.h" +#include "wx/graphics.h" +#include "wx/filename.h" +#include "wx/metafile.h" + +#define TEST_CAIRO_EVERYWHERE 0 // ---------------------------------------------------------------------------- -// ressources +// resources // ---------------------------------------------------------------------------- // the application icon -#if defined(__WXGTK__) || defined(__WXMOTIF__) - #include "mondrian.xpm" +#ifndef wxHAS_IMAGES_IN_RESOURCES + #include "../sample.xpm" #endif -// ---------------------------------------------------------------------------- -// constants -// ---------------------------------------------------------------------------- - -// what do we show on screen (there are too many shapes to put them all on -// screen simultaneously) -enum ScreenToShow -{ - Show_Default, - Show_Text, - Show_Lines, - Show_Polygons, - Show_Mask, - Show_Ops, - Show_Regions -}; - // ---------------------------------------------------------------------------- // global variables // ---------------------------------------------------------------------------- -static wxBitmap gs_bmpNoMask, - gs_bmpWithColMask, - gs_bmpMask, - gs_bmpWithMask, - gs_bmp4, - gs_bmp4_mono, - gs_bmp36; +static wxBitmap *gs_bmpNoMask = NULL, + *gs_bmpWithColMask = NULL, + *gs_bmpMask = NULL, + *gs_bmpWithMask = NULL, + *gs_bmp4 = NULL, + *gs_bmp4_mono = NULL, + *gs_bmp36 = NULL; // ---------------------------------------------------------------------------- // private classes @@ -92,7 +78,11 @@ public: // return: if OnInit() returns false, the application terminates) virtual bool OnInit(); + virtual int OnExit() { DeleteBitmaps(); return 0; } + protected: + void DeleteBitmaps(); + bool LoadImages(); }; @@ -108,15 +98,23 @@ public: // event handlers (these functions should _not_ be virtual) void OnQuit(wxCommandEvent& event); void OnAbout(wxCommandEvent& event); + void OnClip(wxCommandEvent& event); +#if wxUSE_GRAPHICS_CONTEXT + void OnGraphicContext(wxCommandEvent& event); +#endif + void OnCopy(wxCommandEvent& event); + void OnSave(wxCommandEvent& event); void OnShow(wxCommandEvent &event); void OnOption(wxCommandEvent &event); +#if wxUSE_COLOURDLG wxColour SelectColour(); +#endif // wxUSE_COLOURDLG void PrepareDC(wxDC& dc); int m_backgroundMode; int m_textureBackground; - int m_mapMode; + wxMappingMode m_mapMode; double m_xUserScale; double m_yUserScale; int m_xLogicalOrigin; @@ -129,7 +127,7 @@ public: MyCanvas *m_canvas; private: - // any class wishing to process wxWindows events must use this macro + // any class wishing to process wxWidgets events must use this macro DECLARE_EVENT_TABLE() }; @@ -141,24 +139,57 @@ public: void OnPaint(wxPaintEvent &event); void OnMouseMove(wxMouseEvent &event); + void OnMouseDown(wxMouseEvent &event); + void OnMouseUp(wxMouseEvent &event); + + void ToShow(int show) { m_show = show; Refresh(); } - void Show(ScreenToShow show) { m_show = show; Refresh(); } + // set or remove the clipping region + void Clip(bool clip) { m_clip = clip; Refresh(); } +#if wxUSE_GRAPHICS_CONTEXT + void UseGraphicContext(bool use) { m_useContext = use; Refresh(); } +#endif + void Draw(wxDC& dc); protected: - void DrawTestPoly( int x, int y, wxDC &dc ,int transparent ); + enum DrawMode + { + Draw_Normal, + Draw_Stretch + }; + void DrawTestLines( int x, int y, int width, wxDC &dc ); + void DrawTestPoly(wxDC& dc); + void DrawTestBrushes(wxDC& dc); void DrawText(wxDC& dc); - void DrawImages(wxDC& dc); + void DrawImages(wxDC& dc, DrawMode mode); void DrawWithLogicalOps(wxDC& dc); +#if wxUSE_GRAPHICS_CONTEXT + void DrawAlpha(wxDC& dc); + void DrawGraphics(wxGraphicsContext* gc); +#endif void DrawRegions(wxDC& dc); + void DrawCircles(wxDC& dc); + void DrawSplines(wxDC& dc); void DrawDefault(wxDC& dc); + void DrawGradients(wxDC& dc); + + void DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime); private: MyFrame *m_owner; - ScreenToShow m_show; + int m_show; wxBitmap m_smile_bmp; wxIcon m_std_icon; + bool m_clip; + wxOverlay m_overlay; + bool m_rubberBand; + wxPoint m_anchorpoint; + wxPoint m_currentpoint; +#if wxUSE_GRAPHICS_CONTEXT + bool m_useContext ; +#endif DECLARE_EVENT_TABLE() }; @@ -171,18 +202,34 @@ private: enum { // menu items - File_Quit = 1, - File_About, + File_Quit = wxID_EXIT, + File_About = wxID_ABOUT, - MenuShow_First, + MenuShow_First = wxID_HIGHEST, File_ShowDefault = MenuShow_First, File_ShowText, File_ShowLines, + File_ShowBrushes, File_ShowPolygons, File_ShowMask, + File_ShowMaskStretch, File_ShowOps, File_ShowRegions, - MenuShow_Last = File_ShowRegions, + File_ShowCircles, + File_ShowSplines, +#if wxUSE_GRAPHICS_CONTEXT + File_ShowAlpha, + File_ShowGraphics, +#endif + File_ShowGradients, + MenuShow_Last = File_ShowGradients, + + File_Clip, +#if wxUSE_GRAPHICS_CONTEXT + File_GraphicContext, +#endif + File_Copy, + File_Save, MenuOption_First, @@ -205,10 +252,14 @@ enum LogicalOrigin_MoveUp, LogicalOrigin_MoveLeft, LogicalOrigin_MoveRight, + LogicalOrigin_Set, + LogicalOrigin_Restore, +#if wxUSE_COLOURDLG Colour_TextForeground, Colour_TextBackground, Colour_Background, +#endif // wxUSE_COLOURDLG Colour_BackgroundMode, Colour_TextureBackgound, @@ -216,11 +267,11 @@ enum }; // ---------------------------------------------------------------------------- -// event tables and other macros for wxWindows +// event tables and other macros for wxWidgets // ---------------------------------------------------------------------------- -// Create a new application object: this macro will allow wxWindows to create +// Create a new application object: this macro will allow wxWidgets to create // the application object during program execution (it's better than using a // static object for many reasons) and also declares the accessor function // wxGetApp() which will return the reference of the right type (i.e. MyApp and @@ -237,359 +288,295 @@ IMPLEMENT_APP(MyApp) bool MyApp::LoadImages() { - wxPathList pathList; - pathList.Add("."); - pathList.Add(".."); + gs_bmpNoMask = new wxBitmap; + gs_bmpWithColMask = new wxBitmap; + gs_bmpMask = new wxBitmap; + gs_bmpWithMask = new wxBitmap; + gs_bmp4 = new wxBitmap; + gs_bmp4_mono = new wxBitmap; + gs_bmp36 = new wxBitmap; - wxString path = pathList.FindValidPath("pat4.bmp"); + wxPathList pathList; + // special hack for Unix in-tree sample build, don't do this in real + // programs, use wxStandardPaths instead + pathList.Add(wxFileName(argv[0]).GetPath()); + pathList.Add(wxT(".")); + pathList.Add(wxT("..")); + pathList.Add(wxT("../..")); + + wxString path = pathList.FindValidPath(wxT("pat4.bmp")); if ( !path ) - return FALSE; + return false; + /* 4 colour bitmap */ - gs_bmp4.LoadFile(path, wxBITMAP_TYPE_BMP); + gs_bmp4->LoadFile(path, wxBITMAP_TYPE_BMP); /* turn into mono-bitmap */ - gs_bmp4_mono.LoadFile(path, wxBITMAP_TYPE_BMP); - wxMask* mask4 = new wxMask(gs_bmp4_mono, *wxBLACK); - gs_bmp4_mono.SetMask(mask4); + gs_bmp4_mono->LoadFile(path, wxBITMAP_TYPE_BMP); + wxMask* mask4 = new wxMask(*gs_bmp4_mono, *wxBLACK); + gs_bmp4_mono->SetMask(mask4); - path = pathList.FindValidPath("pat36.bmp"); + path = pathList.FindValidPath(wxT("pat36.bmp")); if ( !path ) - return FALSE; - gs_bmp36.LoadFile(path, wxBITMAP_TYPE_BMP); - wxMask* mask36 = new wxMask(gs_bmp36, *wxBLACK); - gs_bmp36.SetMask(mask36); + return false; + gs_bmp36->LoadFile(path, wxBITMAP_TYPE_BMP); + wxMask* mask36 = new wxMask(*gs_bmp36, *wxBLACK); + gs_bmp36->SetMask(mask36); - path = pathList.FindValidPath("image.bmp"); + path = pathList.FindValidPath(wxT("image.bmp")); if ( !path ) - return FALSE; - gs_bmpNoMask.LoadFile(path, wxBITMAP_TYPE_BMP); - gs_bmpWithMask.LoadFile(path, wxBITMAP_TYPE_BMP); - gs_bmpWithColMask.LoadFile(path, wxBITMAP_TYPE_BMP); + return false; + gs_bmpNoMask->LoadFile(path, wxBITMAP_TYPE_BMP); + gs_bmpWithMask->LoadFile(path, wxBITMAP_TYPE_BMP); + gs_bmpWithColMask->LoadFile(path, wxBITMAP_TYPE_BMP); - path = pathList.FindValidPath("mask.bmp"); + path = pathList.FindValidPath(wxT("mask.bmp")); if ( !path ) - return FALSE; - gs_bmpMask.LoadFile(path, wxBITMAP_TYPE_BMP); - -// This is so wrong, it hurts. -// gs_bmpMask.SetDepth(1); -// wxMask *mask = new wxMask(gs_bmpMask); + return false; + gs_bmpMask->LoadFile(path, wxBITMAP_TYPE_BMP); - wxMask *mask = new wxMask(gs_bmpMask, *wxBLACK); - gs_bmpWithMask.SetMask(mask); + wxMask *mask = new wxMask(*gs_bmpMask, *wxBLACK); + gs_bmpWithMask->SetMask(mask); - mask = new wxMask(gs_bmpWithColMask, *wxWHITE); - gs_bmpWithColMask.SetMask(mask); + mask = new wxMask(*gs_bmpWithColMask, *wxWHITE); + gs_bmpWithColMask->SetMask(mask); - return TRUE; + return true; } // `Main program' equivalent: the program execution "starts" here bool MyApp::OnInit() { + if ( !wxApp::OnInit() ) + return false; + // Create the main application window - MyFrame *frame = new MyFrame("Drawing sample", - wxPoint(50, 50), wxSize(550, 340)); + MyFrame *frame = new MyFrame(wxT("Drawing sample"), + wxDefaultPosition, wxSize(550, 840)); - // Show it and tell the application that it's our main window - frame->Show(TRUE); - SetTopWindow(frame); + // Show it + frame->Show(true); if ( !LoadImages() ) { - wxLogError("Can't load one of the bitmap files needed for this sample " - "from the current or parent directory, please copy them " - "there."); + wxLogError(wxT("Can't load one of the bitmap files needed ") + wxT("for this sample from the current or parent ") + wxT("directory, please copy them there.")); - // stop here - return FALSE; + // still continue, the sample can be used without images too if they're + // missing for whatever reason } +#if wxUSE_LIBPNG + wxImage::AddHandler( new wxPNGHandler ); +#endif + + return true; +} - // ok, continue - return TRUE; +void MyApp::DeleteBitmaps() +{ + wxDELETE(gs_bmpNoMask); + wxDELETE(gs_bmpWithColMask); + wxDELETE(gs_bmpMask); + wxDELETE(gs_bmpWithMask); + wxDELETE(gs_bmp4); + wxDELETE(gs_bmp4_mono); + wxDELETE(gs_bmp36); } // ---------------------------------------------------------------------------- // MyCanvas // ---------------------------------------------------------------------------- -// the event tables connect the wxWindows events with the functions (event +// the event tables connect the wxWidgets events with the functions (event // handlers) which process them. BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow) EVT_PAINT (MyCanvas::OnPaint) EVT_MOTION (MyCanvas::OnMouseMove) + EVT_LEFT_DOWN (MyCanvas::OnMouseDown) + EVT_LEFT_UP (MyCanvas::OnMouseUp) END_EVENT_TABLE() -#include "../image/smile.xpm" +#include "smile.xpm" -MyCanvas::MyCanvas( MyFrame *parent ) : wxScrolledWindow( parent ) +MyCanvas::MyCanvas(MyFrame *parent) + : wxScrolledWindow(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, + wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE) { m_owner = parent; - m_show = Show_Default; + m_show = File_ShowDefault; m_smile_bmp = wxBitmap(smile_xpm); - m_std_icon = wxTheApp->GetStdIcon(wxICON_INFORMATION); + m_std_icon = wxArtProvider::GetIcon(wxART_INFORMATION); + m_clip = false; + m_rubberBand = false; +#if wxUSE_GRAPHICS_CONTEXT + m_useContext = false; +#endif } -// Draw a polygon and an overlapping rectangle -// If transparent is 1, the fill pattern is made transparent. -// If transparent is 2, the fill pattern is made transparent but inversed -// If is transparent is 0 the text for and background color will be used to represent/map -// the colors of the monochrome bitmap pixels to the fillpattern -// -// I abused the the menu items for setting so called back and fore ground color -// just to show how the those colors do influence the fillpatterns just play -// with those, and with the code variations are endless using other logical -// functions. - -void MyCanvas::DrawTestPoly( int x, int y,wxDC &dc,int transparent ) +void MyCanvas::DrawTestBrushes(wxDC& dc) { - wxBrush* brush4 = new wxBrush(gs_bmp4); - wxBrush* brush4_mono = new wxBrush(gs_bmp4_mono); - wxBrush* brush36 = new wxBrush(gs_bmp36); - - wxPoint todraw[5]; - todraw[0].x=(long)x+100; - todraw[0].y=(long)y+100; - todraw[1].x=(long)x+300; - todraw[1].y=(long)y+100; - todraw[2].x=(long)x+300; - todraw[2].y=(long)y+300; - todraw[3].x=(long)x+150; - todraw[3].y=(long)y+350; - todraw[4].x=(long)x+100; - todraw[4].y=(long)y+300; - - wxPoint todraw2[5]; - todraw2[0].x=100; - todraw2[0].y=100; - todraw2[1].x=300; - todraw2[1].y=100; - todraw2[2].x=300; - todraw2[2].y=300; - todraw2[3].x=150; - todraw2[3].y=350; - todraw2[4].x=100; - todraw2[4].y=300; - - switch (transparent) - { - case 0: - { - dc.SetLogicalFunction(wxCOPY); - - dc.SetPen( wxPen( "black", 4, wxSOLID) ); - dc.SetBrush( *brush4 ); - dc.DrawPolygon(5,todraw,0,0,wxWINDING_RULE); - - dc.SetPen( wxPen( "red", 4, wxSOLID) ); - dc.SetBrush( *brush36 ); - dc.SetTextForeground(*wxCYAN); - dc.SetTextBackground(m_owner->m_colourBackground); - dc.DrawRectangle( x+10, y+10, 200, 200 ); - - dc.SetPen( wxPen( "green", 4, wxSOLID) ); - dc.SetBrush( *brush4_mono ); - dc.SetTextForeground(*wxCYAN); - dc.SetTextBackground(m_owner->m_colourBackground); - dc.DrawRectangle( x+50, y+50, 200, 200 ); - - dc.SetBrush(wxNullBrush); - dc.SetPen(wxNullPen); - break; - } - case 1: //now with transparent fillpatterns - { - - wxBitmap* bmpBlit = new wxBitmap(600,400); - wxMemoryDC* memDC= new wxMemoryDC(); - // wxBrush _clearbrush(*wxGREEN,wxSOLID); - wxBrush _clearbrush(*wxBLACK,wxSOLID); - memDC->SelectObject(*bmpBlit); - memDC->BeginDrawing(); - memDC->SetBackground(_clearbrush); - memDC->Clear(); - memDC->SetBackground(wxNullBrush); - - memDC->SetPen( wxPen( "black", 4, wxSOLID) ); - memDC->SetBrush( wxNullBrush); - memDC->SetBrush( *brush4 ); - memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black) - memDC->SetTextBackground(*wxWHITE); // 1s --> 0xFFFFFF (white) - memDC->SetLogicalFunction(wxAND_INVERT); - - // BLACK OUT the opaque pixels and leave the rest as is - memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE); - - // Set background and foreground colors for fill pattern - //the previous blacked out pixels are now merged with the layer color - //while the non blacked out pixels stay as they are. - memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black) - - //now define what will be the color of the fillpattern parts that are not transparent - // memDC->SetTextBackground(*wxBLUE); - memDC->SetTextBackground(m_owner->m_colourForeground); - memDC->SetLogicalFunction(wxOR); - - - //don't understand how but the outline is also depending on logicalfunction - memDC->SetPen( wxPen( "red", 4, wxSOLID) ); - memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE); - - memDC->SetLogicalFunction(wxCOPY); - - memDC->SetPen( wxPen( "black", 4, wxSOLID) ); - memDC->SetBrush( wxNullBrush); - memDC->SetBrush( *brush36 ); - memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black) - memDC->SetTextBackground(*wxWHITE); // 1s --> 0xFFFFFF (white) - memDC->SetLogicalFunction(wxAND_INVERT); - - memDC->DrawRectangle( 10, 10, 200, 200 ); - - // Set background and foreground colors for fill pattern - //the previous blacked out pixels are now merged with the layer color - //while the non blacked out pixels stay as they are. - memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black) - //now define what will be the color of the fillpattern parts that are not transparent - // memDC->SetTextBackground(*wxRED); - memDC->SetTextBackground(m_owner->m_colourBackground); - memDC->SetLogicalFunction(wxOR); - - //don't understand how but the outline is also depending on logicalfunction - memDC->SetPen( wxPen( "yellow", 4, wxSOLID) ); - memDC->DrawRectangle( 10, 10, 200, 200 ); - - memDC->SetBrush(wxNullBrush); - memDC->SetPen(wxNullPen); - - memDC->EndDrawing(); - dc.Blit(x,y,600,400,memDC,0,0,wxCOPY); - delete bmpBlit; - delete memDC; - break; - } - case 2: //now with transparent inversed fillpatterns - { - wxBitmap* bmpBlit = new wxBitmap(600,400); - wxMemoryDC* memDC= new wxMemoryDC(); - wxBrush _clearbrush(*wxWHITE,wxSOLID); - memDC->SelectObject(*bmpBlit); - memDC->BeginDrawing(); - memDC->SetBackground(_clearbrush); - memDC->Clear(); - memDC->SetBackground(wxNullBrush); - - memDC->SetPen( wxPen( "black", 4, wxSOLID) ); - memDC->SetBrush( *brush4 ); - memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black) - memDC->SetTextForeground(*wxWHITE); // 1s --> 0xFFFFFF (white) - memDC->SetLogicalFunction(wxAND_INVERT); - - // BLACK OUT the opaque pixels and leave the rest as is - memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE); - - // Set background and foreground colors for fill pattern - //the previous blacked out pixels are now merged with the layer color - //while the non blacked out pixels stay as they are. - memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black) - - //now define what will be the color of the fillpattern parts that are not transparent - memDC->SetTextForeground(m_owner->m_colourForeground); - memDC->SetLogicalFunction(wxOR); - - - //don't understand how but the outline is also depending on logicalfunction - memDC->SetPen( wxPen( "red", 4, wxSOLID) ); - memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE); - - memDC->SetLogicalFunction(wxCOPY); - - memDC->SetPen( wxPen( "black", 4, wxSOLID) ); - memDC->SetBrush( *brush36 ); - memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black) - memDC->SetTextForeground(*wxWHITE); // 1s --> 0xFFFFFF (white) - memDC->SetLogicalFunction(wxAND_INVERT); - - memDC->DrawRectangle( 10,10, 200, 200 ); - - // Set background and foreground colors for fill pattern - //the previous blacked out pixels are now merged with the layer color - //while the non blacked out pixels stay as they are. - memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black) - //now define what will be the color of the fillpattern parts that are not transparent - memDC->SetTextForeground(m_owner->m_colourBackground); - memDC->SetLogicalFunction(wxOR); - - //don't understand how but the outline is also depending on logicalfunction - memDC->SetPen( wxPen( "yellow", 4, wxSOLID) ); - memDC->DrawRectangle( 10, 10, 200, 200 ); - - memDC->SetBrush(wxNullBrush); - memDC->SetPen(wxNullPen); - dc.Blit(x,y,600,400,memDC,0,0,wxCOPY); - delete bmpBlit; - delete memDC; - } - } + static const wxCoord WIDTH = 200; + static const wxCoord HEIGHT = 80; + + wxCoord x = 10, + y = 10; + + dc.SetBrush(wxBrush(*wxGREEN, wxSOLID)); + dc.DrawRectangle(x, y, WIDTH, HEIGHT); + dc.DrawText(wxT("Solid green"), x + 10, y + 10); + + y += HEIGHT; + dc.SetBrush(wxBrush(*wxRED, wxCROSSDIAG_HATCH)); + dc.DrawRectangle(x, y, WIDTH, HEIGHT); + dc.DrawText(wxT("Diagonally hatched red"), x + 10, y + 10); + + y += HEIGHT; + dc.SetBrush(wxBrush(*wxBLUE, wxCROSS_HATCH)); + dc.DrawRectangle(x, y, WIDTH, HEIGHT); + dc.DrawText(wxT("Cross hatched blue"), x + 10, y + 10); + + y += HEIGHT; + dc.SetBrush(wxBrush(*wxCYAN, wxVERTICAL_HATCH)); + dc.DrawRectangle(x, y, WIDTH, HEIGHT); + dc.DrawText(wxT("Vertically hatched cyan"), x + 10, y + 10); + + y += HEIGHT; + dc.SetBrush(wxBrush(*wxBLACK, wxHORIZONTAL_HATCH)); + dc.DrawRectangle(x, y, WIDTH, HEIGHT); + dc.DrawText(wxT("Horizontally hatched black"), x + 10, y + 10); + + y += HEIGHT; + dc.SetBrush(wxBrush(*gs_bmpMask)); + dc.DrawRectangle(x, y, WIDTH, HEIGHT); + dc.DrawText(wxT("Stipple mono"), x + 10, y + 10); + + y += HEIGHT; + dc.SetBrush(wxBrush(*gs_bmpNoMask)); + dc.DrawRectangle(x, y, WIDTH, HEIGHT); + dc.DrawText(wxT("Stipple colour"), x + 10, y + 10); +} - delete brush4; - delete brush4_mono; - delete brush36; +void MyCanvas::DrawTestPoly(wxDC& dc) +{ + wxBrush brushHatch(*wxRED, wxFDIAGONAL_HATCH); + dc.SetBrush(brushHatch); + + wxPoint star[5]; + star[0] = wxPoint(100, 60); + star[1] = wxPoint(60, 150); + star[2] = wxPoint(160, 100); + star[3] = wxPoint(40, 100); + star[4] = wxPoint(140, 150); + + dc.DrawText(wxT("You should see two (irregular) stars below, the left one ") + wxT("hatched"), 10, 10); + dc.DrawText(wxT("except for the central region and the right ") + wxT("one entirely hatched"), 10, 30); + dc.DrawText(wxT("The third star only has a hatched outline"), 10, 50); + + dc.DrawPolygon(WXSIZEOF(star), star, 0, 30); + dc.DrawPolygon(WXSIZEOF(star), star, 160, 30, wxWINDING_RULE); + + wxPoint star2[10]; + star2[0] = wxPoint(0, 100); + star2[1] = wxPoint(-59, -81); + star2[2] = wxPoint(95, 31); + star2[3] = wxPoint(-95, 31); + star2[4] = wxPoint(59, -81); + star2[5] = wxPoint(0, 80); + star2[6] = wxPoint(-47, -64); + star2[7] = wxPoint(76, 24); + star2[8] = wxPoint(-76, 24); + star2[9] = wxPoint(47, -64); + int count[2] = {5, 5}; + + dc.DrawPolyPolygon(WXSIZEOF(count), count, star2, 450, 150); } void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) { - dc.SetPen( wxPen( "black", width, wxSOLID) ); + dc.SetPen( wxPen( wxT("black"), width, wxSOLID) ); dc.SetBrush( *wxRED_BRUSH ); + dc.DrawText(wxString::Format(wxT("Testing lines of width %d"), width), x + 10, y - 10); dc.DrawRectangle( x+10, y+10, 100, 190 ); - dc.SetPen( wxPen( "black", width, wxSOLID) ); + dc.DrawText(wxT("Solid/dot/short dash/long dash/dot dash"), x + 150, y + 10); + dc.SetPen( wxPen( wxT("black"), width, wxSOLID) ); dc.DrawLine( x+20, y+20, 100, y+20 ); - dc.SetPen( wxPen( "black", width, wxDOT) ); + dc.SetPen( wxPen( wxT("black"), width, wxDOT) ); dc.DrawLine( x+20, y+30, 100, y+30 ); - dc.SetPen( wxPen( "black", width, wxSHORT_DASH) ); + dc.SetPen( wxPen( wxT("black"), width, wxSHORT_DASH) ); dc.DrawLine( x+20, y+40, 100, y+40 ); - dc.SetPen( wxPen( "black", width, wxLONG_DASH) ); + dc.SetPen( wxPen( wxT("black"), width, wxLONG_DASH) ); dc.DrawLine( x+20, y+50, 100, y+50 ); - dc.SetPen( wxPen( "black", width, wxDOT_DASH) ); + dc.SetPen( wxPen( wxT("black"), width, wxDOT_DASH) ); dc.DrawLine( x+20, y+60, 100, y+60 ); - dc.SetPen( wxPen( "black", width, wxBDIAGONAL_HATCH) ); + dc.DrawText(wxT("Misc hatches"), x + 150, y + 70); + dc.SetPen( wxPen( wxT("black"), width, wxBDIAGONAL_HATCH) ); dc.DrawLine( x+20, y+70, 100, y+70 ); - dc.SetPen( wxPen( "black", width, wxCROSSDIAG_HATCH) ); + dc.SetPen( wxPen( wxT("black"), width, wxCROSSDIAG_HATCH) ); dc.DrawLine( x+20, y+80, 100, y+80 ); - dc.SetPen( wxPen( "black", width, wxFDIAGONAL_HATCH) ); + dc.SetPen( wxPen( wxT("black"), width, wxFDIAGONAL_HATCH) ); dc.DrawLine( x+20, y+90, 100, y+90 ); - dc.SetPen( wxPen( "black", width, wxCROSS_HATCH) ); + dc.SetPen( wxPen( wxT("black"), width, wxCROSS_HATCH) ); dc.DrawLine( x+20, y+100, 100, y+100 ); - dc.SetPen( wxPen( "black", width, wxHORIZONTAL_HATCH) ); + dc.SetPen( wxPen( wxT("black"), width, wxHORIZONTAL_HATCH) ); dc.DrawLine( x+20, y+110, 100, y+110 ); - dc.SetPen( wxPen( "black", width, wxVERTICAL_HATCH) ); + dc.SetPen( wxPen( wxT("black"), width, wxVERTICAL_HATCH) ); dc.DrawLine( x+20, y+120, 100, y+120 ); - wxPen ud( "black", width, wxUSER_DASH ); - wxDash dash1[1]; - dash1[0] = 0; - ud.SetDashes( 1, dash1 ); + dc.DrawText(wxT("User dash"), x + 150, y + 140); + wxPen ud( wxT("black"), width, wxUSER_DASH ); + wxDash dash1[6]; + dash1[0] = 8; // Long dash <---------+ + dash1[1] = 2; // Short gap | + dash1[2] = 3; // Short dash | + dash1[3] = 2; // Short gap | + dash1[4] = 3; // Short dash | + dash1[5] = 2; // Short gap and repeat + + ud.SetDashes( 6, dash1 ); + dc.SetPen( ud ); dc.DrawLine( x+20, y+140, 100, y+140 ); - dash1[0] = 1; - ud.SetDashes( 1, dash1 ); + dash1[0] = 5; // Make first dash shorter + ud.SetDashes( 6, dash1 ); + dc.SetPen( ud ); dc.DrawLine( x+20, y+150, 100, y+150 ); - dash1[0] = 2; - ud.SetDashes( 1, dash1 ); + dash1[2] = 5; // Make second dash longer + ud.SetDashes( 6, dash1 ); + dc.SetPen( ud ); dc.DrawLine( x+20, y+160, 100, y+160 ); - dash1[0] = 0xFF; - ud.SetDashes( 1, dash1 ); + dash1[4] = 5; // Make third dash longer + ud.SetDashes( 6, dash1 ); + dc.SetPen( ud ); dc.DrawLine( x+20, y+170, 100, y+170 ); } void MyCanvas::DrawDefault(wxDC& dc) { - // mark the origin - dc.DrawCircle(0, 0, 10); -#if !(defined __WXGTK__) && !(defined __WXMOTIF__) - // not implemented in wxGTK or wxMOTIF :-( - dc.FloodFill(0, 0, wxColour(255, 0, 0)); -#endif // + // Draw circle centered at the origin, then flood fill it with a different + // color. Done with a wxMemoryDC because Blit (used by generic + // wxDoFloodFill) from a window that is being painted gives unpredictable + // results on wxGTK + { + wxImage img(21, 21, false); + img.Clear(1); + wxBitmap bmp(img); + { + wxMemoryDC mdc(bmp); + mdc.SetBrush(dc.GetBrush()); + mdc.SetPen(dc.GetPen()); + mdc.DrawCircle(10, 10, 10); + wxColour c; + if (mdc.GetPixel(11, 11, &c)) + { + mdc.SetBrush(wxColour(128, 128, 0)); + mdc.FloodFill(11, 11, c, wxFLOOD_SURFACE); + } + } + bmp.SetMask(new wxMask(bmp, wxColour(1, 1, 1))); + dc.DrawBitmap(bmp, -10, -10, true); + } dc.DrawCheckMark(5, 80, 15, 15); dc.DrawCheckMark(25, 80, 30, 30); @@ -601,7 +588,7 @@ void MyCanvas::DrawDefault(wxDC& dc) dc.SetPen(*wxTRANSPARENT_PEN); dc.SetBrush( *wxGREEN_BRUSH ); dc.DrawRectangle(x, 10, rectSize, rectSize); - dc.DrawBitmap(m_std_icon, x + 5, 15, TRUE); + dc.DrawBitmap(m_std_icon, x + 5, 15, true); x += rectSize + 10; dc.DrawRectangle(x, 10, rectSize, rectSize); dc.DrawIcon(m_std_icon, x + 5, 15); @@ -612,8 +599,8 @@ void MyCanvas::DrawDefault(wxDC& dc) // rectangle above) //dc.SetBrush( *wxTRANSPARENT_BRUSH ); - if (m_smile_bmp.Ok()) - dc.DrawBitmap(m_smile_bmp, x + rectSize - 20, rectSize - 10, TRUE); + if (m_smile_bmp.IsOk()) + dc.DrawBitmap(m_smile_bmp, x + rectSize - 20, rectSize - 10, true); dc.SetBrush( *wxBLACK_BRUSH ); dc.DrawRectangle( 0, 160, 1000, 300 ); @@ -665,9 +652,9 @@ void MyCanvas::DrawDefault(wxDC& dc) memdc.SelectObject( wxNullBitmap ); dc.DrawBitmap( bitmap, 10, 170 ); - wxImage image( bitmap ); + wxImage image = bitmap.ConvertToImage(); image.Rescale( 60,210 ); - bitmap = image.ConvertToBitmap(); + bitmap = wxBitmap(image); dc.DrawBitmap( bitmap, 50, 170 ); // test the rectangle outline drawing - there should be one pixel between @@ -736,7 +723,7 @@ void MyCanvas::DrawDefault(wxDC& dc) // Added by JACS to demonstrate bizarre behaviour. // With a size of 70, we get a missing red RHS, - // and the hight is too small, so we get yellow + // and the height is too small, so we get yellow // showing. With a size of 40, it draws as expected: // it just shows a white rectangle with red outline. int totalWidth = 70; @@ -746,11 +733,12 @@ void MyCanvas::DrawDefault(wxDC& dc) wxMemoryDC memdc2; memdc2.SelectObject(bitmap2); - wxBrush yellowBrush(wxColour(255, 255, 0), wxSOLID); + wxColour clr(255, 255, 0); + wxBrush yellowBrush(clr, wxSOLID); memdc2.SetBackground(yellowBrush); memdc2.Clear(); - wxPen yellowPen(wxColour(255, 255, 0), 1, wxSOLID); + wxPen yellowPen(clr, 1, wxSOLID); // Now draw a white rectangle with red outline. It should // entirely eclipse the yellow background. @@ -784,74 +772,97 @@ void MyCanvas::DrawDefault(wxDC& dc) void MyCanvas::DrawText(wxDC& dc) { // set underlined font for testing - dc.SetFont( wxFont(12, wxMODERN, wxNORMAL, wxNORMAL, TRUE) ); - dc.DrawText( "This is text", 110, 10 ); - dc.DrawRotatedText( "That is text", 20, 10, -45 ); + dc.SetFont( wxFont(12, wxMODERN, wxNORMAL, wxNORMAL, true) ); + dc.DrawText( wxT("This is text"), 110, 10 ); + dc.DrawRotatedText( wxT("That is text"), 20, 10, -45 ); - dc.SetFont( *wxNORMAL_FONT ); + // use wxSWISS_FONT and not wxNORMAL_FONT as the latter can't be rotated + // under Win9x (it is not TrueType) + dc.SetFont( *wxSWISS_FONT ); wxString text; - dc. SetBackgroundMode(wxTRANSPARENT); + dc.SetBackgroundMode(wxTRANSPARENT); for ( int n = -180; n < 180; n += 30 ) { - text.Printf(" %d rotated text", n); + text.Printf(wxT(" %d rotated text"), n); dc.DrawRotatedText(text , 400, 400, n); } dc.SetFont( wxFont( 18, wxSWISS, wxNORMAL, wxNORMAL ) ); - dc.DrawText( "This is Swiss 18pt text.", 110, 40 ); + dc.DrawText( wxT("This is Swiss 18pt text."), 110, 40 ); - long length; - long height; - long descent; - dc.GetTextExtent( "This is Swiss 18pt text.", &length, &height, &descent ); - text.Printf( "Dimensions are length %ld, height %ld, descent %ld", length, height, descent ); + wxCoord length; + wxCoord height; + wxCoord descent; + dc.GetTextExtent( wxT("This is Swiss 18pt text."), &length, &height, &descent ); + text.Printf( wxT("Dimensions are length %d, height %d, descent %d"), length, height, descent ); dc.DrawText( text, 110, 80 ); - text.Printf( "CharHeight() returns: %d", dc.GetCharHeight() ); + text.Printf( wxT("CharHeight() returns: %d"), dc.GetCharHeight() ); dc.DrawText( text, 110, 120 ); dc.DrawRectangle( 100, 40, 4, height ); + + // test the logical function effect + wxCoord y = 150; + dc.SetLogicalFunction(wxINVERT); + // text drawing should ignore logical function + dc.DrawText( wxT("There should be a text below"), 110, 150 ); + dc.DrawRectangle( 110, y, 100, height ); + + y += height; + dc.DrawText( wxT("Visible text"), 110, y ); + dc.DrawRectangle( 110, y, 100, height ); + dc.DrawText( wxT("Visible text"), 110, y ); + dc.DrawRectangle( 110, y, 100, height ); + dc.SetLogicalFunction(wxCOPY); + + y += height; + dc.DrawRectangle( 110, y, 100, height ); + dc.DrawText( wxT("Another visible text"), 110, y ); + + y += height; + dc.DrawText("And\nmore\ntext on\nmultiple\nlines", 110, y); } static const struct { const wxChar *name; - int rop; + wxRasterOperationMode rop; } rasterOperations[] = { - { "wxAND", wxAND }, - { "wxAND_INVERT", wxAND_INVERT }, - { "wxAND_REVERSE", wxAND_REVERSE }, - { "wxCLEAR", wxCLEAR }, - { "wxCOPY", wxCOPY }, - { "wxEQUIV", wxEQUIV }, - { "wxINVERT", wxINVERT }, - { "wxNAND", wxNAND }, - { "wxNO_OP", wxNO_OP }, - { "wxOR", wxOR }, - { "wxOR_INVERT", wxOR_INVERT }, - { "wxOR_REVERSE", wxOR_REVERSE }, - { "wxSET", wxSET }, - { "wxSRC_INVERT", wxSRC_INVERT }, - { "wxXOR", wxXOR }, + { wxT("wxAND"), wxAND }, + { wxT("wxAND_INVERT"), wxAND_INVERT }, + { wxT("wxAND_REVERSE"), wxAND_REVERSE }, + { wxT("wxCLEAR"), wxCLEAR }, + { wxT("wxCOPY"), wxCOPY }, + { wxT("wxEQUIV"), wxEQUIV }, + { wxT("wxINVERT"), wxINVERT }, + { wxT("wxNAND"), wxNAND }, + { wxT("wxNO_OP"), wxNO_OP }, + { wxT("wxOR"), wxOR }, + { wxT("wxOR_INVERT"), wxOR_INVERT }, + { wxT("wxOR_REVERSE"), wxOR_REVERSE }, + { wxT("wxSET"), wxSET }, + { wxT("wxSRC_INVERT"), wxSRC_INVERT }, + { wxT("wxXOR"), wxXOR }, }; -void MyCanvas::DrawImages(wxDC& dc) +void MyCanvas::DrawImages(wxDC& dc, DrawMode mode) { - dc.DrawText("original image", 0, 0); - dc.DrawBitmap(gs_bmpNoMask, 0, 20, 0); - dc.DrawText("with colour mask", 0, 100); - dc.DrawBitmap(gs_bmpWithColMask, 0, 120, TRUE); - dc.DrawText("the mask image", 0, 200); - dc.DrawBitmap(gs_bmpMask, 0, 220, 0); - dc.DrawText("masked image", 0, 300); - dc.DrawBitmap(gs_bmpWithMask, 0, 320, TRUE); - - int cx = gs_bmpWithColMask.GetWidth(), - cy = gs_bmpWithColMask.GetHeight(); + dc.DrawText(wxT("original image"), 0, 0); + dc.DrawBitmap(*gs_bmpNoMask, 0, 20, 0); + dc.DrawText(wxT("with colour mask"), 0, 100); + dc.DrawBitmap(*gs_bmpWithColMask, 0, 120, true); + dc.DrawText(wxT("the mask image"), 0, 200); + dc.DrawBitmap(*gs_bmpMask, 0, 220, 0); + dc.DrawText(wxT("masked image"), 0, 300); + dc.DrawBitmap(*gs_bmpWithMask, 0, 320, true); + + int cx = gs_bmpWithColMask->GetWidth(), + cy = gs_bmpWithColMask->GetHeight(); wxMemoryDC memDC; for ( size_t n = 0; n < WXSIZEOF(rasterOperations); n++ ) @@ -860,8 +871,16 @@ void MyCanvas::DrawImages(wxDC& dc) y = 20 + 100*(n/4); dc.DrawText(rasterOperations[n].name, x, y - 20); - memDC.SelectObject(gs_bmpWithColMask); - dc.Blit(x, y, cx, cy, &memDC, 0, 0, rasterOperations[n].rop, TRUE); + memDC.SelectObject(*gs_bmpWithColMask); + if ( mode == Draw_Stretch ) + { + dc.StretchBlit(x, y, cx, cy, &memDC, 0, 0, cx/2, cy/2, + rasterOperations[n].rop, true); + } + else + { + dc.Blit(x, y, cx, cy, &memDC, 0, 0, rasterOperations[n].rop, true); + } } } @@ -901,129 +920,824 @@ void MyCanvas::DrawWithLogicalOps(wxDC& dc) } } +#if wxUSE_GRAPHICS_CONTEXT +#ifdef __WXGTK20__ +void MyCanvas::DrawAlpha(wxDC& WXUNUSED(dummyDC)) +#else +void MyCanvas::DrawAlpha(wxDC& dc) +#endif +{ +#ifdef __WXGTK__ + wxGCDC dc( this ); + PrepareDC( dc ); +#endif + + wxDouble margin = 20 ; + wxDouble width = 180 ; + wxDouble radius = 30 ; + + dc.SetPen( wxPen( wxColour( 128, 0, 0, 255 ),12, wxSOLID)); + dc.SetBrush( wxBrush( wxColour( 255, 0, 0, 255),wxSOLID)); + + wxRect r(margin,margin+width*0.66,width,width) ; + + dc.DrawRoundedRectangle( r.x, r.y, r.width, r.width, radius ) ; + + dc.SetPen( wxPen( wxColour( 0, 0, 128, 255 ),12, wxSOLID)); + dc.SetBrush( wxBrush( wxColour( 0, 0, 255, 255),wxSOLID)); + + r.Offset( width * 0.8 , - width * 0.66 ) ; + + dc.DrawRoundedRectangle( r.x, r.y, r.width, r.width, radius ) ; + + dc.SetPen( wxPen( wxColour( 128, 128, 0, 255 ),12, wxSOLID)); + dc.SetBrush( wxBrush( wxColour( 192, 192, 0, 255),wxSOLID)); + + r.Offset( width * 0.8 , width *0.5 ) ; + + dc.DrawRoundedRectangle( r.x, r.y, r.width, r.width, radius ) ; + + dc.SetPen( *wxTRANSPARENT_PEN ) ; + dc.SetBrush( wxBrush( wxColour(255,255,128,128) ) ); + dc.DrawRoundedRectangle( 0 , margin + width / 2 , width * 3 , 100 , radius) ; + + dc.SetTextForeground( wxColour(255,255,0,128) ); + dc.SetFont( wxFont( 40, wxFONTFAMILY_SWISS, wxFONTSTYLE_ITALIC, wxFONTWEIGHT_NORMAL ) ); + dc.DrawText( wxT("Hello!"), 120, 80 ); +} + +#endif + +#if wxUSE_GRAPHICS_CONTEXT + +const int BASE = 80.0; +const int BASE2 = BASE/2; +const int BASE4 = BASE/4; + +static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; } + + +// modeled along Robin Dunn's GraphicsContext.py sample + +void MyCanvas::DrawGraphics(wxGraphicsContext* gc) +{ + wxFont font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT); + gc->SetFont(font,*wxBLACK); + + // make a path that contains a circle and some lines, centered at 0,0 + wxGraphicsPath path = gc->CreatePath() ; + path.AddCircle( 0, 0, BASE2 ); + path.MoveToPoint(0, -BASE2); + path.AddLineToPoint(0, BASE2); + path.MoveToPoint(-BASE2, 0); + path.AddLineToPoint(BASE2, 0); + path.CloseSubpath(); + path.AddRectangle(-BASE4, -BASE4/2, BASE2, BASE4); + + // Now use that path to demonstrate various capbilites of the grpahics context + gc->PushState(); // save current translation/scale/other state + gc->Translate(60, 75); // reposition the context origin + + gc->SetPen(wxPen("navy", 1)); + gc->SetBrush(wxBrush("pink")); + + for( int i = 0 ; i < 3 ; ++i ) + { + wxString label; + switch( i ) + { + case 0 : + label = "StrokePath"; + break; + case 1 : + label = "FillPath"; + break; + case 2 : + label = "DrawPath"; + break; + } + wxDouble w, h; + gc->GetTextExtent(label, &w, &h, NULL, NULL); + gc->DrawText(label, -w/2, -BASE2-h-4); + switch( i ) + { + case 0 : + gc->StrokePath(path); + break; + case 1 : + gc->FillPath(path); + break; + case 2 : + gc->DrawPath(path); + break; + } + gc->Translate(2*BASE, 0); + } + + gc->PopState(); // restore saved state + gc->PushState(); // save it again + gc->Translate(60, 200); // offset to the lower part of the window + + gc->DrawText("Scale", 0, -BASE2); + gc->Translate(0, 20); + + gc->SetBrush(wxBrush(wxColour(178, 34, 34, 128)));// 128 == half transparent + for( int i = 0 ; i < 8 ; ++i ) + { + gc->Scale(1.08, 1.08); // increase scale by 8% + gc->Translate(5,5); + gc->DrawPath(path); + } + + gc->PopState(); // restore saved state + gc->PushState(); // save it again + gc->Translate(400, 200); + + gc->DrawText("Rotate", 0, -BASE2); + + // Move the origin over to the next location + gc->Translate(0, 75); + + // draw our path again, rotating it about the central point, + // and changing colors as we go + for ( int angle = 0 ; angle < 360 ; angle += 30 ) + { + gc->PushState(); // save this new current state so we can + // pop back to it at the end of the loop + wxImage::RGBValue val = wxImage::HSVtoRGB(wxImage::HSVValue(float(angle)/360, 1, 1)); + gc->SetBrush(wxBrush(wxColour(val.red, val.green, val.blue, 64))); + gc->SetPen(wxPen(wxColour(val.red, val.green, val.blue, 128))); + + // use translate to artfully reposition each drawn path + gc->Translate(1.5 * BASE2 * cos(DegToRad(angle)), + 1.5 * BASE2 * sin(DegToRad(angle))); + + // use Rotate to rotate the path + gc->Rotate(DegToRad(angle)); + + // now draw it + gc->DrawPath(path); + gc->PopState(); + } + gc->PopState(); + + gc->PushState(); + gc->Translate(60, 400); + gc->DrawText("Scaled smiley inside a square", 0, 0); + gc->DrawRectangle(BASE2, BASE2, 100, 100); + gc->DrawBitmap(m_smile_bmp, BASE2, BASE2, 100, 100); + gc->PopState(); +} +#endif // wxUSE_GRAPHICS_CONTEXT + +void MyCanvas::DrawCircles(wxDC& dc) +{ + int x = 100, + y = 100, + r = 20; + + dc.SetPen( *wxRED_PEN ); + dc.SetBrush( *wxGREEN_BRUSH ); + + dc.DrawText(wxT("Some circles"), 0, y); + dc.DrawCircle(x, y, r); + dc.DrawCircle(x + 2*r, y, r); + dc.DrawCircle(x + 4*r, y, r); + + y += 2*r; + dc.DrawText(wxT("And ellipses"), 0, y); + dc.DrawEllipse(x - r, y, 2*r, r); + dc.DrawEllipse(x + r, y, 2*r, r); + dc.DrawEllipse(x + 3*r, y, 2*r, r); + + y += 2*r; + dc.DrawText(wxT("And arcs"), 0, y); + dc.DrawArc(x - r, y, x + r, y, x, y); + dc.DrawArc(x + 4*r, y, x + 2*r, y, x + 3*r, y); + dc.DrawArc(x + 5*r, y, x + 5*r, y, x + 6*r, y); + + y += 2*r; + dc.DrawEllipticArc(x - r, y, 2*r, r, 0, 90); + dc.DrawEllipticArc(x + r, y, 2*r, r, 90, 180); + dc.DrawEllipticArc(x + 3*r, y, 2*r, r, 180, 270); + dc.DrawEllipticArc(x + 5*r, y, 2*r, r, 270, 360); + + // same as above, just transparent brush + + dc.SetPen( *wxRED_PEN ); + dc.SetBrush( *wxTRANSPARENT_BRUSH ); + + y += 2*r; + dc.DrawText(wxT("Some circles"), 0, y); + dc.DrawCircle(x, y, r); + dc.DrawCircle(x + 2*r, y, r); + dc.DrawCircle(x + 4*r, y, r); + + y += 2*r; + dc.DrawText(wxT("And ellipses"), 0, y); + dc.DrawEllipse(x - r, y, 2*r, r); + dc.DrawEllipse(x + r, y, 2*r, r); + dc.DrawEllipse(x + 3*r, y, 2*r, r); + + y += 2*r; + dc.DrawText(wxT("And arcs"), 0, y); + dc.DrawArc(x - r, y, x + r, y, x, y); + dc.DrawArc(x + 4*r, y, x + 2*r, y, x + 3*r, y); + dc.DrawArc(x + 5*r, y, x + 5*r, y, x + 6*r, y); + + y += 2*r; + dc.DrawEllipticArc(x - r, y, 2*r, r, 0, 90); + dc.DrawEllipticArc(x + r, y, 2*r, r, 90, 180); + dc.DrawEllipticArc(x + 3*r, y, 2*r, r, 180, 270); + dc.DrawEllipticArc(x + 5*r, y, 2*r, r, 270, 360); + +} + +void MyCanvas::DrawSplines(wxDC& dc) +{ +#if wxUSE_SPLINES + dc.DrawText(wxT("Some splines"), 10, 5); + + // values are hardcoded rather than randomly generated + // so the output can be compared between native + // implementations on platforms with different random + // generators + + const int R = 300; + const wxPoint center( R + 20, R + 20 ); + const int angles[7] = { 0, 10, 33, 77, 13, 145, 90 }; + const int radii[5] = { 100 , 59, 85, 33, 90 }; + const int n = 200; + wxPoint pts[n]; + + // background spline calculation + unsigned int radius_pos = 0; + unsigned int angle_pos = 0; + int angle = 0; + for ( int i = 0; i < n; i++ ) + { + angle += angles[ angle_pos ]; + int r = R * radii[ radius_pos ] / 100; + pts[ i ].x = center.x + (wxCoord)( r * cos( M_PI * angle / 180.0) ); + pts[ i ].y = center.y + (wxCoord)( r * sin( M_PI * angle / 180.0) ); + + angle_pos++; + if ( angle_pos >= WXSIZEOF(angles) ) angle_pos = 0; + + radius_pos++; + if ( radius_pos >= WXSIZEOF(radii) ) radius_pos = 0; + } + + // background spline drawing + dc.SetPen(*wxRED_PEN); + dc.DrawSpline(WXSIZEOF(pts), pts); + + // less detailed spline calculation + wxPoint letters[4][5]; + // w + letters[0][0] = wxPoint( 0,1); // O O + letters[0][1] = wxPoint( 1,3); // * * + letters[0][2] = wxPoint( 2,2); // * O * + letters[0][3] = wxPoint( 3,3); // * * * * + letters[0][4] = wxPoint( 4,1); // O O + // x1 + letters[1][0] = wxPoint( 5,1); // O*O + letters[1][1] = wxPoint( 6,1); // * + letters[1][2] = wxPoint( 7,2); // O + letters[1][3] = wxPoint( 8,3); // * + letters[1][4] = wxPoint( 9,3); // O*O + // x2 + letters[2][0] = wxPoint( 5,3); // O*O + letters[2][1] = wxPoint( 6,3); // * + letters[2][2] = wxPoint( 7,2); // O + letters[2][3] = wxPoint( 8,1); // * + letters[2][4] = wxPoint( 9,1); // O*O + // W + letters[3][0] = wxPoint(10,0); // O O + letters[3][1] = wxPoint(11,3); // * * + letters[3][2] = wxPoint(12,1); // * O * + letters[3][3] = wxPoint(13,3); // * * * * + letters[3][4] = wxPoint(14,0); // O O + + const int dx = 2 * R / letters[3][4].x; + const int h[4] = { -R/2, 0, R/4, R/2 }; + + for ( int m = 0; m < 4; m++ ) + { + for ( int n = 0; n < 5; n++ ) + { + letters[m][n].x = center.x - R + letters[m][n].x * dx; + letters[m][n].y = center.y + h[ letters[m][n].y ]; + } + + dc.SetPen( wxPen( wxT("blue"), 1, wxDOT) ); + dc.DrawLines(5, letters[m]); + dc.SetPen( wxPen( wxT("black"), 4, wxSOLID) ); + dc.DrawSpline(5, letters[m]); + } + +#else + dc.DrawText(wxT("Splines not supported."), 10, 5); +#endif +} + +void MyCanvas::DrawGradients(wxDC& dc) +{ + static const int TEXT_HEIGHT = 15; + + // LHS: linear + wxRect r(10, 10, 50, 50); + dc.DrawText(wxT("wxRIGHT"), r.x, r.y); + r.Offset(0, TEXT_HEIGHT); + dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxRIGHT); + + r.Offset(0, r.height + 10); + dc.DrawText(wxT("wxLEFT"), r.x, r.y); + r.Offset(0, TEXT_HEIGHT); + dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxLEFT); + + r.Offset(0, r.height + 10); + dc.DrawText(wxT("wxDOWN"), r.x, r.y); + r.Offset(0, TEXT_HEIGHT); + dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxDOWN); + + r.Offset(0, r.height + 10); + dc.DrawText(wxT("wxUP"), r.x, r.y); + r.Offset(0, TEXT_HEIGHT); + dc.GradientFillLinear(r, *wxWHITE, *wxBLUE, wxUP); + + wxRect gfr = wxRect(r); + + // RHS: concentric + r = wxRect(200, 10, 50, 50); + dc.DrawText(wxT("Blue inside"), r.x, r.y); + r.Offset(0, TEXT_HEIGHT); + dc.GradientFillConcentric(r, *wxBLUE, *wxWHITE); + + r.Offset(0, r.height + 10); + dc.DrawText(wxT("White inside"), r.x, r.y); + r.Offset(0, TEXT_HEIGHT); + dc.GradientFillConcentric(r, *wxWHITE, *wxBLUE); + + r.Offset(0, r.height + 10); + dc.DrawText(wxT("Blue in top left corner"), r.x, r.y); + r.Offset(0, TEXT_HEIGHT); + dc.GradientFillConcentric(r, *wxBLUE, *wxWHITE, wxPoint(0, 0)); + + r.Offset(0, r.height + 10); + dc.DrawText(wxT("Blue in bottom right corner"), r.x, r.y); + r.Offset(0, TEXT_HEIGHT); + dc.GradientFillConcentric(r, *wxBLUE, *wxWHITE, wxPoint(r.width, r.height)); + + // check that the area filled by the gradient is exactly the interior of + // the rectangle + r.x = 350; + r.y = 30; + dc.DrawText("The interior should be filled but", r.x, r.y); + r.y += 15; + dc.DrawText(" the red border should remain visible:", r.x, r.y); + r.y += 15; + + r.width = + r.height = 50; + wxRect r2 = r; + r2.x += 60; + wxRect r3 = r; + r3.y += 60; + wxRect r4 = r2; + r4.y += 60; + dc.SetPen(wxPen(wxColour(255, 0, 0))); + dc.DrawRectangle(r); + r.Deflate(1); + dc.GradientFillLinear(r, wxColour(0,255,0), wxColour(0,0,0), wxNORTH); + dc.DrawRectangle(r2); + r2.Deflate(1); + dc.GradientFillLinear(r2, wxColour(0,0,0), wxColour(0,255,0), wxSOUTH); + dc.DrawRectangle(r3); + r3.Deflate(1); + dc.GradientFillLinear(r3, wxColour(0,255,0), wxColour(0,0,0), wxEAST); + dc.DrawRectangle(r4); + r4.Deflate(1); + dc.GradientFillLinear(r4, wxColour(0,0,0), wxColour(0,255,0), wxWEST); + +#if wxUSE_GRAPHICS_CONTEXT + if (m_useContext) + { + wxGCDC &gdc = (wxGCDC&)dc; + wxGraphicsContext *gc = gdc.GetGraphicsContext(); + wxGraphicsPath pth; + wxGraphicsGradientStops stops; + + gfr.Offset(0, gfr.height + 10); + dc.DrawText(wxT("Linear Gradient with Stops"), gfr.x, gfr.y); + gfr.Offset(0, TEXT_HEIGHT); + + stops = wxGraphicsGradientStops(wxColour(255,0,0), wxColour(0,0,255)); + stops.Add(wxColour(255,255,0), 0.33f); + stops.Add(wxColour(0,255,0), 0.67f); + + gc->SetBrush(gc->CreateLinearGradientBrush(gfr.x, gfr.y, + gfr.x + gfr.width, gfr.y + gfr.height, + stops)); + pth = gc->CreatePath(); + pth.MoveToPoint(gfr.x,gfr.y); + pth.AddLineToPoint(gfr.x + gfr.width,gfr.y); + pth.AddLineToPoint(gfr.x + gfr.width,gfr.y+gfr.height); + pth.AddLineToPoint(gfr.x,gfr.y+gfr.height); + pth.CloseSubpath(); + gc->FillPath(pth); + + gfr.Offset(0, gfr.height + 10); + dc.DrawText(wxT("Radial Gradient with Stops"), gfr.x, gfr.y); + gfr.Offset(0, TEXT_HEIGHT); + + gc->SetBrush(gc->CreateRadialGradientBrush(gfr.x + gfr.width / 2, + gfr.y + gfr.height / 2, + gfr.x + gfr.width / 2, + gfr.y + gfr.height / 2, + gfr.width / 2, + stops)); + pth = gc->CreatePath(); + pth.MoveToPoint(gfr.x,gfr.y); + pth.AddLineToPoint(gfr.x + gfr.width,gfr.y); + pth.AddLineToPoint(gfr.x + gfr.width,gfr.y+gfr.height); + pth.AddLineToPoint(gfr.x,gfr.y+gfr.height); + pth.CloseSubpath(); + gc->FillPath(pth); + + gfr.Offset(0, gfr.height + 10); + dc.DrawText(wxT("Linear Gradient with Stops and Gaps"), gfr.x, gfr.y); + gfr.Offset(0, TEXT_HEIGHT); + + stops = wxGraphicsGradientStops(wxColour(255,0,0), wxColour(0,0,255)); + stops.Add(wxColour(255,255,0), 0.33f); + stops.Add(wxTransparentColour, 0.33f); + stops.Add(wxTransparentColour, 0.67f); + stops.Add(wxColour(0,255,0), 0.67f); + + gc->SetBrush(gc->CreateLinearGradientBrush(gfr.x, gfr.y + gfr.height, + gfr.x + gfr.width, gfr.y, + stops)); + pth = gc->CreatePath(); + pth.MoveToPoint(gfr.x,gfr.y); + pth.AddLineToPoint(gfr.x + gfr.width,gfr.y); + pth.AddLineToPoint(gfr.x + gfr.width,gfr.y+gfr.height); + pth.AddLineToPoint(gfr.x,gfr.y+gfr.height); + pth.CloseSubpath(); + gc->FillPath(pth); + + gfr.Offset(0, gfr.height + 10); + dc.DrawText(wxT("Radial Gradient with Stops and Gaps"), gfr.x, gfr.y); + gfr.Offset(0, TEXT_HEIGHT); + + gc->SetBrush(gc->CreateRadialGradientBrush(gfr.x + gfr.width / 2, + gfr.y + gfr.height / 2, + gfr.x + gfr.width / 2, + gfr.y + gfr.height / 2, + gfr.width / 2, + stops)); + pth = gc->CreatePath(); + pth.MoveToPoint(gfr.x,gfr.y); + pth.AddLineToPoint(gfr.x + gfr.width,gfr.y); + pth.AddLineToPoint(gfr.x + gfr.width,gfr.y+gfr.height); + pth.AddLineToPoint(gfr.x,gfr.y+gfr.height); + pth.CloseSubpath(); + gc->FillPath(pth); + + gfr.Offset(0, gfr.height + 10); + dc.DrawText(wxT("Gradients with Stops and Transparency"), gfr.x, gfr.y); + gfr.Offset(0, TEXT_HEIGHT); + + stops = wxGraphicsGradientStops(wxColour(255,0,0), wxTransparentColour); + stops.Add(wxColour(255,0,0), 0.33f); + stops.Add(wxTransparentColour, 0.33f); + stops.Add(wxTransparentColour, 0.67f); + stops.Add(wxColour(0,0,255), 0.67f); + stops.Add(wxColour(0,0,255), 1.0f); + + pth = gc->CreatePath(); + pth.MoveToPoint(gfr.x,gfr.y); + pth.AddLineToPoint(gfr.x + gfr.width,gfr.y); + pth.AddLineToPoint(gfr.x + gfr.width,gfr.y+gfr.height); + pth.AddLineToPoint(gfr.x,gfr.y+gfr.height); + pth.CloseSubpath(); + + gc->SetBrush(gc->CreateRadialGradientBrush(gfr.x + gfr.width / 2, + gfr.y + gfr.height / 2, + gfr.x + gfr.width / 2, + gfr.y + gfr.height / 2, + gfr.width / 2, + stops)); + gc->FillPath(pth); + + stops = wxGraphicsGradientStops(wxColour(255,0,0, 128), wxColour(0,0,255, 128)); + stops.Add(wxColour(255,255,0,128), 0.33f); + stops.Add(wxColour(0,255,0,128), 0.67f); + + gc->SetBrush(gc->CreateLinearGradientBrush(gfr.x, gfr.y, + gfr.x + gfr.width, gfr.y, + stops)); + gc->FillPath(pth); + } +#endif // wxUSE_GRAPHICS_CONTEXT +} + void MyCanvas::DrawRegions(wxDC& dc) { + dc.DrawText(wxT("You should see a red rect partly covered by a cyan one ") + wxT("on the left"), 10, 5); + dc.DrawText(wxT("and 5 smileys from which 4 are partially clipped on the right"), + 10, 5 + dc.GetCharHeight()); + dc.DrawText(wxT("The second copy should be identical but right part of it ") + wxT("should be offset by 10 pixels."), + 10, 5 + 2*dc.GetCharHeight()); + + DrawRegionsHelper(dc, 10, true); + DrawRegionsHelper(dc, 350, false); +} + +void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime) +{ + wxCoord y = 100; + + dc.DestroyClippingRegion(); dc.SetBrush( *wxWHITE_BRUSH ); dc.SetPen( *wxTRANSPARENT_PEN ); - dc.DrawRectangle( 10,10,310,310 ); - - dc.SetClippingRegion( 20,20,100,270 ); - + dc.DrawRectangle( x, y, 310, 310 ); + + dc.SetClippingRegion( x + 10, y + 10, 100, 270 ); + dc.SetBrush( *wxRED_BRUSH ); - dc.DrawRectangle( 10,10,310,310 ); + dc.DrawRectangle( x, y, 310, 310 ); + + dc.SetClippingRegion( x + 10, y + 10, 100, 100 ); - dc.SetClippingRegion( 20,20,100,100 ); - dc.SetBrush( *wxCYAN_BRUSH ); - dc.DrawRectangle( 10,10,310,310 ); + dc.DrawRectangle( x, y, 310, 310 ); dc.DestroyClippingRegion(); - dc.SetClippingRegion( 120,30,100,270 ); - + + wxRegion region(x + 110, y + 20, 100, 270); +#if !defined(__WXMOTIF__) + if ( !firstTime ) + region.Offset(10, 10); +#endif + dc.SetDeviceClippingRegion(region); + dc.SetBrush( *wxGREY_BRUSH ); - dc.DrawRectangle( 10,10,310,310 ); - - if (m_smile_bmp.Ok()) + dc.DrawRectangle( x, y, 310, 310 ); + + if (m_smile_bmp.IsOk()) { - dc.DrawBitmap( m_smile_bmp, 140, 20, TRUE ); - dc.DrawBitmap( m_smile_bmp, 140, 290, TRUE ); - dc.DrawBitmap( m_smile_bmp, 110, 80, TRUE ); - dc.DrawBitmap( m_smile_bmp, 210, 80, TRUE ); + dc.DrawBitmap( m_smile_bmp, x + 150, y + 150, true ); + dc.DrawBitmap( m_smile_bmp, x + 130, y + 10, true ); + dc.DrawBitmap( m_smile_bmp, x + 130, y + 280, true ); + dc.DrawBitmap( m_smile_bmp, x + 100, y + 70, true ); + dc.DrawBitmap( m_smile_bmp, x + 200, y + 70, true ); } } void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) { - wxPaintDC dc(this); + wxPaintDC pdc(this); + Draw(pdc); +} + +void MyCanvas::Draw(wxDC& pdc) +{ +#if wxUSE_GRAPHICS_CONTEXT + wxGCDC gdc; + wxGraphicsRenderer* const renderer = wxGraphicsRenderer:: +#if TEST_CAIRO_EVERYWHERE + GetCairoRenderer() +#else + GetDefaultRenderer() +#endif + ; + + wxGraphicsContext* context; + if ( wxPaintDC *paintdc = wxDynamicCast(&pdc, wxPaintDC) ) + { + context = renderer->CreateContext(*paintdc); + } + else if ( wxMemoryDC *memdc = wxDynamicCast(&pdc, wxMemoryDC) ) + { + context = renderer->CreateContext(*memdc); + } +#if wxUSE_METAFILE && defined(wxMETAFILE_IS_ENH) + else if ( wxMetafileDC *metadc = wxDynamicCast(&pdc, wxMetafileDC) ) + { + context = renderer->CreateContext(*metadc); + } +#endif + else + { + wxFAIL_MSG( "Unknown wxDC kind" ); + return; + } + + gdc.SetGraphicsContext(context); + + wxDC &dc = m_useContext ? (wxDC&) gdc : (wxDC&) pdc ; +#else + wxDC &dc = pdc ; +#endif + PrepareDC(dc); + m_owner->PrepareDC(dc); dc.SetBackgroundMode( m_owner->m_backgroundMode ); - if ( m_owner->m_backgroundBrush.Ok() ) + if ( m_owner->m_backgroundBrush.IsOk() ) dc.SetBackground( m_owner->m_backgroundBrush ); - if ( m_owner->m_colourForeground.Ok() ) + if ( m_owner->m_colourForeground.IsOk() ) dc.SetTextForeground( m_owner->m_colourForeground ); - if ( m_owner->m_colourBackground.Ok() ) + if ( m_owner->m_colourBackground.IsOk() ) dc.SetTextBackground( m_owner->m_colourBackground ); if ( m_owner->m_textureBackground) { - if ( ! m_owner->m_backgroundBrush.Ok() ) { - wxBrush b(wxColour(0,128,0), wxSOLID); + if ( ! m_owner->m_backgroundBrush.IsOk() ) { + wxColour clr(0,128,0); + wxBrush b(clr, wxSOLID); dc.SetBackground(b); } } + if ( m_clip ) + dc.SetClippingRegion(100, 100, 100, 100); + dc.Clear(); - if ( m_owner->m_textureBackground) { + if ( m_owner->m_textureBackground ) + { dc.SetPen(*wxMEDIUM_GREY_PEN); - for (int i=0; i<200; i++) + for ( int i = 0; i < 200; i++ ) dc.DrawLine(0, i*10, i*10, 0); } switch ( m_show ) { - case Show_Default: + case File_ShowDefault: DrawDefault(dc); break; - case Show_Regions: + case File_ShowCircles: + DrawCircles(dc); + break; + + case File_ShowSplines: + DrawSplines(dc); + break; + + case File_ShowRegions: DrawRegions(dc); break; - case Show_Text: + case File_ShowText: DrawText(dc); break; - case Show_Lines: + case File_ShowLines: DrawTestLines( 0, 100, 0, dc ); - DrawTestLines( 0, 300, 1, dc ); - DrawTestLines( 0, 500, 2, dc ); - DrawTestLines( 0, 700, 6, dc ); + DrawTestLines( 0, 320, 1, dc ); + DrawTestLines( 0, 540, 2, dc ); + DrawTestLines( 0, 760, 6, dc ); break; - case Show_Polygons: - DrawTestPoly( 0, 100, dc, 0 ); -/* - DrawTestPoly( 33, 500, dc, 1 ); - DrawTestPoly( 43, 1000, dc, 2 ); -*/ + case File_ShowBrushes: + DrawTestBrushes(dc); + break; + + case File_ShowPolygons: + DrawTestPoly(dc); + break; + + case File_ShowMask: + DrawImages(dc, Draw_Normal); break; - case Show_Mask: - DrawImages(dc); + case File_ShowMaskStretch: + DrawImages(dc, Draw_Stretch); break; - case Show_Ops: + case File_ShowOps: DrawWithLogicalOps(dc); break; + +#if wxUSE_GRAPHICS_CONTEXT + case File_ShowAlpha: + DrawAlpha(dc); + break; + case File_ShowGraphics: + DrawGraphics(gdc.GetGraphicsContext()); + break; +#endif + + case File_ShowGradients: + DrawGradients(dc); + break; + + default: + break; } } void MyCanvas::OnMouseMove(wxMouseEvent &event) { - wxClientDC dc(this); - PrepareDC(dc); - m_owner->PrepareDC(dc); +#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 ); + } + + if ( m_rubberBand ) + { + int x,y, xx, yy ; + event.GetPosition(&x,&y); + CalcUnscrolledPosition( x, y, &xx, &yy ); + m_currentpoint = wxPoint( xx , yy ) ; + wxRect newrect ( m_anchorpoint , m_currentpoint ) ; + + wxClientDC dc( this ) ; + PrepareDC( dc ) ; + + wxDCOverlay overlaydc( m_overlay, &dc ); + overlaydc.Clear(); +#ifdef __WXMAC__ + dc.SetPen( *wxGREY_PEN ); + dc.SetBrush( wxColour( 192,192,192,64 ) ); +#else + dc.SetPen( wxPen( *wxLIGHT_GREY, 2, wxSOLID ) ); + dc.SetBrush( *wxTRANSPARENT_BRUSH ); +#endif + dc.DrawRectangle( newrect ); + } +#else + wxUnusedVar(event); +#endif // wxUSE_STATUSBAR +} - wxPoint pos = event.GetPosition(); - long x = dc.DeviceToLogicalX( pos.x ); - long y = dc.DeviceToLogicalY( pos.y ); - wxString str; - str.Printf( "Current mouse position: %d,%d", (int)x, (int)y ); - m_owner->SetStatusText( str ); +void MyCanvas::OnMouseDown(wxMouseEvent &event) +{ + int x,y,xx,yy ; + event.GetPosition(&x,&y); + CalcUnscrolledPosition( x, y, &xx, &yy ); + m_anchorpoint = wxPoint( xx , yy ) ; + m_currentpoint = m_anchorpoint ; + m_rubberBand = true ; + CaptureMouse() ; +} + +void MyCanvas::OnMouseUp(wxMouseEvent &event) +{ + if ( m_rubberBand ) + { + ReleaseMouse(); + { + wxClientDC dc( this ); + PrepareDC( dc ); + wxDCOverlay overlaydc( m_overlay, &dc ); + overlaydc.Clear(); + } + m_overlay.Reset(); + m_rubberBand = false; + + wxPoint endpoint = CalcUnscrolledPosition(event.GetPosition()); + + // Don't pop up the message box if nothing was actually selected. + if ( endpoint != m_anchorpoint ) + { + wxLogMessage("Selected rectangle from (%d, %d) to (%d, %d)", + m_anchorpoint.x, m_anchorpoint.y, + endpoint.x, endpoint.y); + } + } } // ---------------------------------------------------------------------------- // MyFrame // ---------------------------------------------------------------------------- -// the event tables connect the wxWindows events with the functions (event +// 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) +#if wxUSE_GRAPHICS_CONTEXT + EVT_MENU (File_GraphicContext, MyFrame::OnGraphicContext) +#endif + EVT_MENU (File_Copy, MyFrame::OnCopy) + EVT_MENU (File_Save, MyFrame::OnSave) EVT_MENU_RANGE(MenuShow_First, MenuShow_Last, MyFrame::OnShow) @@ -1032,71 +1746,99 @@ END_EVENT_TABLE() // frame constructor MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) - : wxFrame((wxFrame *)NULL, -1, title, pos, size) + : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size, + wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE) { // set the frame icon - SetIcon(wxICON(mondrian)); + SetIcon(wxICON(sample)); wxMenu *menuFile = new wxMenu; - menuFile->Append(File_ShowDefault, "&Default screen\tF1"); - menuFile->Append(File_ShowText, "&Text screen\tF2"); - menuFile->Append(File_ShowLines, "&Lines screen\tF3"); - menuFile->Append(File_ShowPolygons, "&Polygons screen\tF4"); - menuFile->Append(File_ShowMask, "wx&Mask screen\tF5"); - menuFile->Append(File_ShowOps, "&ROP screen\tF6"); - menuFile->Append(File_ShowRegions, "Re&gions screen\tF6"); + menuFile->Append(File_ShowDefault, wxT("&Default screen\tF1")); + menuFile->Append(File_ShowText, wxT("&Text screen\tF2")); + menuFile->Append(File_ShowLines, wxT("&Lines screen\tF3")); + menuFile->Append(File_ShowBrushes, wxT("&Brushes screen\tF4")); + menuFile->Append(File_ShowPolygons, wxT("&Polygons screen\tF5")); + menuFile->Append(File_ShowMask, wxT("&Mask screen\tF6")); + menuFile->Append(File_ShowMaskStretch, wxT("1/&2 scaled mask\tShift-F6")); + menuFile->Append(File_ShowOps, wxT("&Raster operations screen\tF7")); + menuFile->Append(File_ShowRegions, wxT("Re&gions screen\tF8")); + menuFile->Append(File_ShowCircles, wxT("&Circles screen\tF9")); +#if wxUSE_GRAPHICS_CONTEXT + menuFile->Append(File_ShowAlpha, wxT("&Alpha screen\tF10")); +#endif + menuFile->Append(File_ShowSplines, wxT("Spl&ines screen\tF11")); + menuFile->Append(File_ShowGradients, wxT("&Gradients screen\tF12")); +#if wxUSE_GRAPHICS_CONTEXT + menuFile->Append(File_ShowGraphics, wxT("&Graphics screen")); +#endif + menuFile->AppendSeparator(); + menuFile->AppendCheckItem(File_Clip, wxT("&Clip\tCtrl-C"), wxT("Clip/unclip drawing")); +#if wxUSE_GRAPHICS_CONTEXT + menuFile->AppendCheckItem(File_GraphicContext, wxT("&Use GraphicContext\tCtrl-Y"), wxT("Use GraphicContext")); +#endif + menuFile->AppendSeparator(); +#if wxUSE_METAFILE && defined(wxMETAFILE_IS_ENH) + menuFile->Append(File_Copy, wxT("Copy to clipboard")); +#endif + menuFile->Append(File_Save, wxT("&Save...\tCtrl-S"), wxT("Save drawing to file")); menuFile->AppendSeparator(); - menuFile->Append(File_About, "&About...\tCtrl-A", "Show about dialog"); + menuFile->Append(File_About, wxT("&About\tCtrl-A"), wxT("Show about dialog")); menuFile->AppendSeparator(); - menuFile->Append(File_Quit, "E&xit\tAlt-X", "Quit this program"); + menuFile->Append(File_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program")); wxMenu *menuMapMode = new wxMenu; - menuMapMode->Append( MapMode_Text, "&TEXT map mode" ); - menuMapMode->Append( MapMode_Lometric, "&LOMETRIC map mode" ); - menuMapMode->Append( MapMode_Twips, "T&WIPS map mode" ); - menuMapMode->Append( MapMode_Points, "&POINTS map mode" ); - menuMapMode->Append( MapMode_Metric, "&METRIC map mode" ); + menuMapMode->Append( MapMode_Text, wxT("&TEXT map mode") ); + menuMapMode->Append( MapMode_Lometric, wxT("&LOMETRIC map mode") ); + menuMapMode->Append( MapMode_Twips, wxT("T&WIPS map mode") ); + menuMapMode->Append( MapMode_Points, wxT("&POINTS map mode") ); + menuMapMode->Append( MapMode_Metric, wxT("&METRIC map mode") ); wxMenu *menuUserScale = new wxMenu; - menuUserScale->Append( UserScale_StretchHoriz, "Stretch horizontally\tCtrl-H" ); - menuUserScale->Append( UserScale_ShrinkHoriz, "Shrink horizontally\tCtrl-G" ); - menuUserScale->Append( UserScale_StretchVertic, "Stretch vertically\tCtrl-V" ); - menuUserScale->Append( UserScale_ShrinkVertic, "Shrink vertically\tCtrl-W" ); + menuUserScale->Append( UserScale_StretchHoriz, wxT("Stretch &horizontally\tCtrl-H") ); + menuUserScale->Append( UserScale_ShrinkHoriz, wxT("Shrin&k horizontally\tCtrl-G") ); + menuUserScale->Append( UserScale_StretchVertic, wxT("Stretch &vertically\tCtrl-V") ); + menuUserScale->Append( UserScale_ShrinkVertic, wxT("&Shrink vertically\tCtrl-W") ); menuUserScale->AppendSeparator(); - menuUserScale->Append( UserScale_Restore, "Restore to normal\tCtrl-0" ); + menuUserScale->Append( UserScale_Restore, wxT("&Restore to normal\tCtrl-0") ); wxMenu *menuAxis = new wxMenu; - menuAxis->Append( AxisMirror_Horiz, "Mirror horizontally\tCtrl-M", "", TRUE ); - menuAxis->Append( AxisMirror_Vertic, "Mirror vertically\tCtrl-N", "", TRUE ); + menuAxis->AppendCheckItem( AxisMirror_Horiz, wxT("Mirror horizontally\tCtrl-M") ); + menuAxis->AppendCheckItem( AxisMirror_Vertic, wxT("Mirror vertically\tCtrl-N") ); wxMenu *menuLogical = new wxMenu; - menuLogical->Append( LogicalOrigin_MoveDown, "Move &down\tCtrl-D" ); - menuLogical->Append( LogicalOrigin_MoveUp, "Move &up\tCtrl-U" ); - menuLogical->Append( LogicalOrigin_MoveLeft, "Move &right\tCtrl-L" ); - menuLogical->Append( LogicalOrigin_MoveRight, "Move &left\tCtrl-R" ); + menuLogical->Append( LogicalOrigin_MoveDown, wxT("Move &down\tCtrl-D") ); + menuLogical->Append( LogicalOrigin_MoveUp, wxT("Move &up\tCtrl-U") ); + menuLogical->Append( LogicalOrigin_MoveLeft, wxT("Move &right\tCtrl-L") ); + menuLogical->Append( LogicalOrigin_MoveRight, wxT("Move &left\tCtrl-R") ); + menuLogical->AppendSeparator(); + menuLogical->Append( LogicalOrigin_Set, wxT("Set to (&100, 100)\tShift-Ctrl-1") ); + menuLogical->Append( LogicalOrigin_Restore, wxT("&Restore to normal\tShift-Ctrl-0") ); wxMenu *menuColour = new wxMenu; - menuColour->Append( Colour_TextForeground, "Text foreground..." ); - menuColour->Append( Colour_TextBackground, "Text background..." ); - menuColour->Append( Colour_Background, "Background colour..." ); - menuColour->Append( Colour_BackgroundMode, "Opaque/transparent\tCtrl-B", "", TRUE ); - menuColour->Append( Colour_TextureBackgound, "Draw textured background\tCtrl-T", "", TRUE); +#if wxUSE_COLOURDLG + menuColour->Append( Colour_TextForeground, wxT("Text &foreground...") ); + menuColour->Append( Colour_TextBackground, wxT("Text &background...") ); + menuColour->Append( Colour_Background, wxT("Background &colour...") ); +#endif // wxUSE_COLOURDLG + menuColour->AppendCheckItem( Colour_BackgroundMode, wxT("&Opaque/transparent\tCtrl-B") ); + menuColour->AppendCheckItem( Colour_TextureBackgound, wxT("Draw textured back&ground\tCtrl-T") ); // now append the freshly created menu to the menu bar... wxMenuBar *menuBar = new wxMenuBar; - menuBar->Append(menuFile, "&File"); - menuBar->Append(menuMapMode, "&MapMode"); - menuBar->Append(menuUserScale, "&UserScale"); - menuBar->Append(menuAxis, "&Axis"); - menuBar->Append(menuLogical, "&LogicalOrigin"); - menuBar->Append(menuColour, "&Colours"); + menuBar->Append(menuFile, wxT("&File")); + menuBar->Append(menuMapMode, wxT("&Mode")); + menuBar->Append(menuUserScale, wxT("&Scale")); + menuBar->Append(menuAxis, wxT("&Axis")); + menuBar->Append(menuLogical, wxT("&Origin")); + menuBar->Append(menuColour, wxT("&Colours")); // ... and attach this menu bar to the frame SetMenuBar(menuBar); - // create a status bar just for fun (by default with 1 pane only) +#if wxUSE_STATUSBAR CreateStatusBar(2); - SetStatusText("Welcome to wxWindows!"); + SetStatusText(wxT("Welcome to wxWidgets!")); +#endif // wxUSE_STATUSBAR m_mapMode = wxMM_TEXT; m_xUserScale = 1.0; @@ -1104,11 +1846,11 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) m_xLogicalOrigin = 0; m_yLogicalOrigin = 0; m_xAxisReversed = - m_yAxisReversed = FALSE; + m_yAxisReversed = false; m_backgroundMode = wxSOLID; - m_colourForeground = *wxRED; - m_colourBackground = *wxBLUE; - m_textureBackground = FALSE; + m_colourForeground = *wxBLACK; + m_colourBackground = *wxLIGHT_GREY; + m_textureBackground = false; m_canvas = new MyCanvas( this ); m_canvas->SetScrollbars( 10, 10, 100, 240 ); @@ -1118,8 +1860,8 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) { - // TRUE is to force the frame to close - Close(TRUE); + // true is to force the frame to close + Close(true); } void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) @@ -1127,21 +1869,65 @@ 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 tests to prevent flicker.\n") + wxT("(without any attempts to prevent flicker).\n") wxT("Copyright (c) Robert Roebling 1999") ); - wxMessageBox(msg, "About Drawing", wxOK | wxICON_INFORMATION, this); + wxMessageBox(msg, wxT("About Drawing"), wxOK | wxICON_INFORMATION, this); +} + +void MyFrame::OnClip(wxCommandEvent& event) +{ + m_canvas->Clip(event.IsChecked()); +} + +#if wxUSE_GRAPHICS_CONTEXT +void MyFrame::OnGraphicContext(wxCommandEvent& event) +{ + m_canvas->UseGraphicContext(event.IsChecked()); +} +#endif + +void MyFrame::OnCopy(wxCommandEvent& WXUNUSED(event)) +{ +#if wxUSE_METAFILE && defined(wxMETAFILE_IS_ENH) + wxMetafileDC dc; + if (!dc.IsOk()) + return; + m_canvas->Draw(dc); + wxMetafile *mf = dc.Close(); + if (!mf) + return; + mf->SetClipboard(); + delete mf; +#endif +} + +void MyFrame::OnSave(wxCommandEvent& WXUNUSED(event)) +{ + wxFileDialog dlg(this, wxT("Save as bitmap"), wxT(""), wxT(""), +#if wxUSE_LIBPNG + wxT("PNG image (*.png)|*.png;*.PNG|") +#endif + wxT("Bitmap image (*.bmp)|*.bmp;*.BMP"), + wxFD_SAVE | wxFD_OVERWRITE_PROMPT); + if (dlg.ShowModal() == wxID_OK) + { + wxBitmap bmp(500, 800); + wxMemoryDC mdc(bmp); + m_canvas->Draw(mdc); + bmp.ConvertToImage().SaveFile(dlg.GetPath()); + } } void MyFrame::OnShow(wxCommandEvent& event) { - m_canvas->Show((ScreenToShow)(event.GetInt() - MenuShow_First)); + m_canvas->ToShow(event.GetId()); } void MyFrame::OnOption(wxCommandEvent& event) { - switch (event.GetInt()) + switch (event.GetId()) { case MapMode_Text: m_mapMode = wxMM_TEXT; @@ -1171,6 +1957,14 @@ void MyFrame::OnOption(wxCommandEvent& event) 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; @@ -1196,6 +1990,7 @@ void MyFrame::OnOption(wxCommandEvent& event) m_xAxisReversed = !m_xAxisReversed; break; +#if wxUSE_COLOURDLG case Colour_TextForeground: m_colourForeground = SelectColour(); break; @@ -1205,12 +2000,14 @@ void MyFrame::OnOption(wxCommandEvent& event) case Colour_Background: { wxColour col = SelectColour(); - if ( col.Ok() ) + if ( col.IsOk() ) { m_backgroundBrush.SetColour(col); } } break; +#endif // wxUSE_COLOURDLG + case Colour_BackgroundMode: m_backgroundMode = m_backgroundMode == wxSOLID ? wxTRANSPARENT : wxSOLID; @@ -1230,12 +2027,13 @@ void MyFrame::OnOption(wxCommandEvent& event) void MyFrame::PrepareDC(wxDC& dc) { - dc.SetMapMode( m_mapMode ); - dc.SetUserScale( m_xUserScale, m_yUserScale ); 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; @@ -1249,3 +2047,4 @@ wxColour MyFrame::SelectColour() return col; } +#endif // wxUSE_COLOURDLG