X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ebc3437c5fb962d54d583c8d2fc26a11225c5051..d15040492413b54a530b5a291b26750f3d265d23:/samples/drawing/drawing.cpp?ds=sidebyside diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp index b3030a39d0..e08e04250d 100644 --- a/samples/drawing/drawing.cpp +++ b/samples/drawing/drawing.cpp @@ -43,7 +43,7 @@ // ---------------------------------------------------------------------------- // the application icon -#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) +#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__) #include "mondrian.xpm" #endif @@ -58,6 +58,7 @@ enum ScreenToShow Show_Default, Show_Text, Show_Lines, + Show_Brushes, Show_Polygons, Show_Mask, Show_Ops, @@ -150,8 +151,9 @@ public: void Show(ScreenToShow show) { m_show = show; Refresh(); } protected: - void DrawTestPoly( int x, int y, wxDC &dc ,int transparent ); 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 DrawWithLogicalOps(wxDC& dc); @@ -159,7 +161,7 @@ protected: void DrawCircles(wxDC& dc); void DrawDefault(wxDC& dc); - void DrawRegionsHelper(wxDC& dc, wxCoord x); + void DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime); private: MyFrame *m_owner; @@ -186,6 +188,7 @@ enum File_ShowDefault = MenuShow_First, File_ShowText, File_ShowLines, + File_ShowBrushes, File_ShowPolygons, File_ShowMask, File_ShowOps, @@ -214,6 +217,8 @@ enum LogicalOrigin_MoveUp, LogicalOrigin_MoveLeft, LogicalOrigin_MoveRight, + LogicalOrigin_Set, + LogicalOrigin_Restore, Colour_TextForeground, Colour_TextBackground, @@ -366,214 +371,53 @@ MyCanvas::MyCanvas(MyFrame *parent) m_std_icon = wxTheApp->GetStdIcon(wxICON_INFORMATION); } -// 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 = new wxBrush(*wxBLACK,wxFDIAGONAL_HATCH); - 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( wxT("black"), 4, wxSOLID) ); - dc.SetBrush( *brush4 ); - dc.DrawPolygon(5,todraw,0,0,wxWINDING_RULE); - - dc.SetPen( wxPen( wxT("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( wxT("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.DrawCircle( x+400, y+50, 130 ); - - 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( wxT("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( wxT("red"), 4, wxSOLID) ); - memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE); - - memDC->SetLogicalFunction(wxCOPY); - - memDC->SetPen( wxPen( wxT("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( wxT("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( wxT("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( wxT("red"), 4, wxSOLID) ); - memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE); - - memDC->SetLogicalFunction(wxCOPY); - - memDC->SetPen( wxPen( wxT("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( wxT("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("Solid green", x + 10, y + 10); + + y += HEIGHT; + dc.SetBrush(wxBrush(*wxRED, wxCROSSDIAG_HATCH)); + dc.DrawRectangle(x, y, WIDTH, HEIGHT); + dc.DrawText("Hatched red", x + 10, y + 10); + + y += HEIGHT; + dc.SetBrush(wxBrush(*gs_bmpMask)); + dc.DrawRectangle(x, y, WIDTH, HEIGHT); + dc.DrawText("Stipple mono", x + 10, y + 10); + + y += HEIGHT; + dc.SetBrush(wxBrush(*gs_bmpNoMask)); + dc.DrawRectangle(x, y, WIDTH, HEIGHT); + dc.DrawText("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("You should see two (irregular) stars below, the left one " + "hatched", 10, 10); + dc.DrawText("except for the central region and the right " + "one entirely hatched", 10, 30); + + dc.DrawPolygon(WXSIZEOF(star), star); + dc.DrawPolygon(WXSIZEOF(star), star, 160, 0, wxWINDING_RULE); } void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) @@ -999,50 +843,53 @@ void MyCanvas::DrawRegions(wxDC& dc) { dc.DrawText("You should see a red rect partly covered by a cyan one " "on the left", 10, 5); - dc.DrawText("and 5 smileys from which 4 are partially clipped on the " - "right (2 copies should be identical)", + dc.DrawText("and 5 smileys from which 4 are partially clipped on the right", 10, 5 + dc.GetCharHeight()); + dc.DrawText("The second copy should be identical but right part of it " + "should be offset by 10 pixels.", + 10, 5 + 2*dc.GetCharHeight()); - DrawRegionsHelper(dc, 10); - DrawRegionsHelper(dc, 350); + DrawRegionsHelper(dc, 10, TRUE); + DrawRegionsHelper(dc, 350, FALSE); } -void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x) +void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime) { + wxCoord y = 100; + dc.DestroyClippingRegion(); dc.SetBrush( *wxWHITE_BRUSH ); dc.SetPen( *wxTRANSPARENT_PEN ); - dc.DrawRectangle( x,50,310,310 ); + dc.DrawRectangle( x, y, 310, 310 ); - dc.SetClippingRegion( x+10,60,100,270 ); + dc.SetClippingRegion( x + 10, y + 10, 100, 270 ); dc.SetBrush( *wxRED_BRUSH ); - dc.DrawRectangle( x,50,310,310 ); + dc.DrawRectangle( x, y, 310, 310 ); - dc.SetClippingRegion( x+10,60,100,100 ); + dc.SetClippingRegion( x + 10, y + 10, 100, 100 ); dc.SetBrush( *wxCYAN_BRUSH ); - dc.DrawRectangle( x,50,310,310 ); + dc.DrawRectangle( x, y, 310, 310 ); - // when drawing the left half, destroy the clipping region, when drawing - // the right one - leave it - // - // normally it shouldn't make any difference as SetClippingRegion() - // replaces the old clipping region - if ( x < 300 ) - dc.DestroyClippingRegion(); - dc.SetClippingRegion( x+110,70,100,270 ); + dc.DestroyClippingRegion(); + + wxRegion region(x + 110, y + 20, 100, 270); + if ( !firstTime ) + region.Offset(10, 10); + + dc.SetClippingRegion(region); dc.SetBrush( *wxGREY_BRUSH ); - dc.DrawRectangle( x,50,310,310 ); + dc.DrawRectangle( x, y, 310, 310 ); if (m_smile_bmp.Ok()) { - dc.DrawBitmap( m_smile_bmp, x+150, 200, TRUE ); - dc.DrawBitmap( m_smile_bmp, x+130, 60, TRUE ); - dc.DrawBitmap( m_smile_bmp, x+130, 330, TRUE ); - dc.DrawBitmap( m_smile_bmp, x+100, 120, TRUE ); - dc.DrawBitmap( m_smile_bmp, x+200, 120, 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 ); } } @@ -1101,12 +948,12 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) DrawTestLines( 0, 760, 6, dc ); break; + case Show_Brushes: + DrawTestBrushes(dc); + break; + case Show_Polygons: - DrawTestPoly( 0, 100, dc, 0 ); -/* - DrawTestPoly( 33, 500, dc, 1 ); - DrawTestPoly( 43, 1000, dc, 2 ); -*/ + DrawTestPoly(dc); break; case Show_Mask: @@ -1116,13 +963,6 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) case Show_Ops: DrawWithLogicalOps(dc); break; - - default: - { - dc.SetPen( *wxBLACK_PEN ); - dc.DrawLine( 0,0,100,100 ); - } - } } @@ -1168,11 +1008,12 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) 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\tF7"); - menuFile->Append(File_ShowCircles, "&Circles screen\tF8"); + menuFile->Append(File_ShowBrushes, "&Brushes screen\tF4"); + menuFile->Append(File_ShowPolygons, "&Polygons screen\tF5"); + menuFile->Append(File_ShowMask, "&Mask screen\tF6"); + menuFile->Append(File_ShowOps, "&ROP screen\tF7"); + menuFile->Append(File_ShowRegions, "Re&gions screen\tF8"); + menuFile->Append(File_ShowCircles, "&Circles screen\tF9"); menuFile->AppendSeparator(); menuFile->Append(File_About, "&About...\tCtrl-A", "Show about dialog"); menuFile->AppendSeparator(); @@ -1186,12 +1027,12 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) menuMapMode->Append( MapMode_Metric, "&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, "Stretch &horizontally\tCtrl-H" ); + menuUserScale->Append( UserScale_ShrinkHoriz, "Shrin&k horizontally\tCtrl-G" ); + menuUserScale->Append( UserScale_StretchVertic, "Stretch &vertically\tCtrl-V" ); + menuUserScale->Append( UserScale_ShrinkVertic, "&Shrink vertically\tCtrl-W" ); menuUserScale->AppendSeparator(); - menuUserScale->Append( UserScale_Restore, "Restore to normal\tCtrl-0" ); + menuUserScale->Append( UserScale_Restore, "&Restore to normal\tCtrl-0" ); wxMenu *menuAxis = new wxMenu; menuAxis->Append( AxisMirror_Horiz, "Mirror horizontally\tCtrl-M", "", TRUE ); @@ -1202,21 +1043,24 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) 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->AppendSeparator(); + menuLogical->Append( LogicalOrigin_Set, "Set to (&100, 100)\tShift-Ctrl-1" ); + menuLogical->Append( LogicalOrigin_Restore, "&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); + 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 back&ground\tCtrl-T", "", TRUE); // 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(menuMapMode, "&Mode"); + menuBar->Append(menuUserScale, "&Scale"); menuBar->Append(menuAxis, "&Axis"); - menuBar->Append(menuLogical, "&LogicalOrigin"); + menuBar->Append(menuLogical, "&Origin"); menuBar->Append(menuColour, "&Colours"); // ... and attach this menu bar to the frame @@ -1255,7 +1099,7 @@ 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") ); @@ -1299,6 +1143,14 @@ 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; @@ -1358,10 +1210,10 @@ 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 ); } wxColour MyFrame::SelectColour()