X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bc3cedfa48ad78bb17b15458c7a499535941a82f..34326da778583ca8eab95f2e41738da2852a5a16:/samples/drawing/drawing.cpp

diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp
index 1c67694c32..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"
 
@@ -30,50 +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_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
@@ -91,7 +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();
 };
 
@@ -107,15 +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;
@@ -128,7 +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()
 };
 
@@ -140,24 +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()
 };
@@ -170,18 +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,
 
@@ -204,10 +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,
 
@@ -215,11 +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
@@ -236,365 +288,307 @@ 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;
-    gs_bmp4.LoadFile(path, wxBITMAP_TYPE_BMP);
-    wxMask* mask4 = new wxMask(gs_bmp4, *wxBLACK);
-    gs_bmp4.SetMask(mask4);
+        return false;
 
-    path = pathList.FindValidPath("pat36.bmp");
-    if ( !path )
-        return FALSE;
-    gs_bmp36.LoadFile(path, wxBITMAP_TYPE_BMP);
-    wxMask* mask36 = new wxMask(gs_bmp36, *wxBLACK);
-    gs_bmp36.SetMask(mask36);
+    /* 4 colour bitmap */
+    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);
 
-    path = pathList.FindValidPath("image.bmp");
+    path = pathList.FindValidPath(wxT("pat36.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_bmp36->LoadFile(path, wxBITMAP_TYPE_BMP);
+    wxMask* mask36 = new wxMask(*gs_bmp36, *wxBLACK);
+    gs_bmp36->SetMask(mask36);
 
-    path = pathList.FindValidPath("mask.bmp");
+    path = pathList.FindValidPath(wxT("image.bmp"));
     if ( !path )
-        return FALSE;
-    gs_bmpMask.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);
 
-//    This is so wrong, it hurts.
-//    gs_bmpMask.SetDepth(1);
-//    wxMask *mask = new wxMask(gs_bmpMask);
+    path = pathList.FindValidPath(wxT("mask.bmp"));
+    if ( !path )
+        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
 
-    // ok, continue
-    return TRUE;
+    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
-//is transparent is 1, the fill pattern are made transparent
-//is transparent is 2, the fill pattern are made transparent but inversed
-//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 miss_used 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* 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.SetPen( wxPen( "black", 4, wxSOLID) );
-                dc.SetBrush( *brush4 );
-                dc.SetTextForeground(*wxGREEN);
-                dc.SetTextBackground(m_owner->m_colourForeground);
-                dc.SetLogicalFunction(wxCOPY);
-                dc.DrawPolygon(5,todraw,0,0,wxWINDING_RULE);
-
-                //don't understand hwo but the outline is also depending on logicalfunction
-                dc.SetPen( wxPen( "red", 4, wxSOLID) );
-                dc.SetBrush( *brush36 );
-                dc.SetTextForeground(*wxCYAN);
-                dc.SetTextBackground(m_owner->m_colourBackground);
-                dc.SetLogicalFunction(wxCOPY);
-                dc.DrawRectangle( x+10, y+10, 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 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 //
-
-    dc.DrawIcon( wxICON(mondrian), 40, 40 );
+    // 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);
     dc.DrawCheckMark(60, 80, 60, 60);
 
     // this is the test for "blitting bitmap into DC damages selected brush" bug
-    wxIcon m_std_icon = wxTheApp->GetStdIcon(wxICON_INFORMATION);
     wxCoord rectSize = m_std_icon.GetWidth() + 10;
     wxCoord x = 100;
     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);
@@ -605,8 +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 );
@@ -658,9 +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
@@ -729,7 +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;
@@ -739,11 +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.
@@ -777,74 +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++ )
@@ -853,8 +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);
+        }
     }
 }
 
@@ -894,115 +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 );
-    
-    wxRegion region( 20,20,100,270 );
-    dc.SetClippingRegion( region );
-    
+    dc.DrawRectangle( x, y, 310, 310 );
+
+    dc.SetClippingRegion( x + 10, y + 10, 100, 270 );
+
     dc.SetBrush( *wxRED_BRUSH );
-    dc.DrawRectangle( 10,10,310,310 );
-    
-    region = wxRegion( 120,30,100,270 );
-    dc.SetClippingRegion( region );
-    
+    dc.DrawRectangle( x, y, 310, 310 );
+
+    dc.SetClippingRegion( x + 10, y + 10, 100, 100 );
+
+    dc.SetBrush( *wxCYAN_BRUSH );
+    dc.DrawRectangle( x, y, 310, 310 );
+
+    dc.DestroyClippingRegion();
+
+    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 );
+    dc.DrawRectangle( x, y, 310, 310 );
+
+    if (m_smile_bmp.IsOk())
+    {
+        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);
         }
     }
 
-//    dc.Clear();
+    if ( m_clip )
+        dc.SetClippingRegion(100, 100, 100, 100);
 
-    if ( m_owner->m_textureBackground) {
+    dc.Clear();
+
+    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 File_ShowBrushes:
+            DrawTestBrushes(dc);
+            break;
+
+        case File_ShowPolygons:
+            DrawTestPoly(dc);
             break;
 
-        case Show_Polygons:
-            DrawTestPoly( 0,  100, dc, 0 );
-            DrawTestPoly( 33, 500, dc, 1 );
-            DrawTestPoly( 43, 1000, dc, 2 );
+        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)
 
@@ -1011,71 +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();
-    menuFile->Append(File_About, "&About...\tCtrl-A", "Show about dialog");
+#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, 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;
@@ -1083,11 +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 );
@@ -1097,8 +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))
@@ -1106,21 +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;
@@ -1150,6 +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;
@@ -1175,6 +1990,7 @@ void MyFrame::OnOption(wxCommandEvent& event)
             m_xAxisReversed = !m_xAxisReversed;
             break;
 
+#if wxUSE_COLOURDLG
         case Colour_TextForeground:
             m_colourForeground = SelectColour();
             break;
@@ -1184,12 +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;
@@ -1209,12 +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;
@@ -1228,3 +2047,4 @@ wxColour MyFrame::SelectColour()
 
     return col;
 }
+#endif // wxUSE_COLOURDLG