X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/11f26ea0e21667bb9ffe53964651e5133c8ded6e..90da75e673f51b30e04629035d8bf7501fd00e30:/samples/drawing/drawing.cpp diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp index c44bef0949..c0bd806ac8 100644 --- a/samples/drawing/drawing.cpp +++ b/samples/drawing/drawing.cpp @@ -60,7 +60,8 @@ enum ScreenToShow Show_Lines, Show_Polygons, Show_Mask, - Show_Ops + Show_Ops, + Show_Regions }; // ---------------------------------------------------------------------------- @@ -72,6 +73,7 @@ static wxBitmap gs_bmpNoMask, gs_bmpMask, gs_bmpWithMask, gs_bmp4, + gs_bmp4_mono, gs_bmp36; // ---------------------------------------------------------------------------- @@ -113,6 +115,7 @@ public: void PrepareDC(wxDC& dc); int m_backgroundMode; + int m_textureBackground; int m_mapMode; double m_xUserScale; double m_yUserScale; @@ -147,12 +150,15 @@ protected: void DrawText(wxDC& dc); void DrawImages(wxDC& dc); void DrawWithLogicalOps(wxDC& dc); + void DrawRegions(wxDC& dc); void DrawDefault(wxDC& dc); private: MyFrame *m_owner; ScreenToShow m_show; + wxBitmap m_smile_bmp; + wxIcon m_std_icon; DECLARE_EVENT_TABLE() }; @@ -175,7 +181,8 @@ enum File_ShowPolygons, File_ShowMask, File_ShowOps, - MenuShow_Last = File_ShowOps, + File_ShowRegions, + MenuShow_Last = File_ShowRegions, MenuOption_First, @@ -203,8 +210,9 @@ enum Colour_TextBackground, Colour_Background, Colour_BackgroundMode, + Colour_TextureBackgound, - MenuOption_Last = Colour_BackgroundMode + MenuOption_Last = Colour_TextureBackgound }; // ---------------------------------------------------------------------------- @@ -236,9 +244,12 @@ bool MyApp::LoadImages() wxString path = pathList.FindValidPath("pat4.bmp"); if ( !path ) return FALSE; + /* 4 colour bitmap */ gs_bmp4.LoadFile(path, wxBITMAP_TYPE_BMP); - wxMask* mask4 = new wxMask(gs_bmp4, *wxBLACK); - gs_bmp4.SetMask(mask4); + /* 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("pat36.bmp"); if ( !path ) @@ -308,26 +319,31 @@ BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow) EVT_MOTION (MyCanvas::OnMouseMove) END_EVENT_TABLE() +#include "../image/smile.xpm" + MyCanvas::MyCanvas( MyFrame *parent ) : wxScrolledWindow( parent ) { m_owner = parent; m_show = Show_Default; + m_smile_bmp = wxBitmap(smile_xpm); + m_std_icon = wxTheApp->GetStdIcon(wxICON_INFORMATION); } -//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 +// 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 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 +// 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 ) { - wxBrush* brush4 = new wxBrush(gs_bmp4); + wxBrush* brush4 = new wxBrush(gs_bmp4); + wxBrush* brush4_mono = new wxBrush(gs_bmp4_mono); wxBrush* brush36 = new wxBrush(gs_bmp36); wxPoint todraw[5]; @@ -358,20 +374,26 @@ void MyCanvas::DrawTestPoly( int x, int y,wxDC &dc,int transparent ) { case 0: { + dc.SetLogicalFunction(wxCOPY); + 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.SetPen( wxPen( "green", 4, wxSOLID) ); + dc.SetBrush( *brush4_mono ); + dc.SetTextForeground(*wxCYAN); + dc.SetTextBackground(m_owner->m_colourBackground); + dc.DrawRectangle( x+50, y+50, 200, 200 ); + + dc.DrawCircle( x+400, y+50, 130 ); + dc.SetBrush(wxNullBrush); dc.SetPen(wxNullPen); break; @@ -512,6 +534,7 @@ void MyCanvas::DrawTestPoly( int x, int y,wxDC &dc,int transparent ) } delete brush4; + delete brush4_mono; delete brush36; } @@ -570,24 +593,29 @@ void MyCanvas::DrawDefault(wxDC& dc) dc.FloodFill(0, 0, wxColour(255, 0, 0)); #endif // - dc.DrawIcon( wxICON(mondrian), 40, 40 ); + 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 + // this is the test for "blitting bitmap into DC damages selected brush" bug + wxCoord rectSize = m_std_icon.GetWidth() + 10; + wxCoord x = 100; dc.SetPen(*wxTRANSPARENT_PEN); dc.SetBrush( *wxGREEN_BRUSH ); - dc.DrawRectangle(100, 10, 40, 40); - dc.DrawBitmap(wxTheApp->GetStdIcon(wxICON_INFORMATION), 102, 12, TRUE); - dc.DrawRectangle(150, 10, 40, 40); - dc.DrawIcon(wxTheApp->GetStdIcon(wxICON_INFORMATION), 152, 12); - dc.DrawRectangle(200, 10, 40, 40); + dc.DrawRectangle(x, 10, rectSize, rectSize); + 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); + x += rectSize + 10; + dc.DrawRectangle(x, 10, rectSize, rectSize); // test for "transparent" bitmap drawing (it intersects with the last // rectangle above) //dc.SetBrush( *wxTRANSPARENT_BRUSH ); - #include "../image/smile.xpm" - wxBitmap bmp(smile_xpm); - dc.DrawBitmap(bmp, 210, 30, TRUE); + + if (m_smile_bmp.Ok()) + dc.DrawBitmap(m_smile_bmp, x + rectSize - 20, rectSize - 10, TRUE); dc.SetBrush( *wxBLACK_BRUSH ); dc.DrawRectangle( 0, 160, 1000, 300 ); @@ -603,7 +631,6 @@ void MyCanvas::DrawDefault(wxDC& dc) // to the right wxPen pen = *wxRED_PEN; - pen.SetWidth(2); memdc.SetPen(pen); memdc.DrawLine( 10, 5,10, 5 ); memdc.DrawLine( 10,10,11,10 ); @@ -665,6 +692,21 @@ void MyCanvas::DrawDefault(wxDC& dc) dc.DrawLine(400, 170, 400, 210); dc.DrawLine(300, 200, 410, 200); + // a few more tests of this kind + dc.SetPen(*wxRED_PEN); + dc.SetBrush( *wxWHITE_BRUSH ); + dc.DrawRectangle(300, 220, 1, 1); + dc.DrawRectangle(310, 220, 2, 2); + dc.DrawRectangle(320, 220, 3, 3); + dc.DrawRectangle(330, 220, 4, 4); + + dc.SetPen(*wxTRANSPARENT_PEN); + dc.SetBrush( *wxWHITE_BRUSH ); + dc.DrawRectangle(300, 230, 1, 1); + dc.DrawRectangle(310, 230, 2, 2); + dc.DrawRectangle(320, 230, 3, 3); + dc.DrawRectangle(330, 230, 4, 4); + // and now for filled rect with outline dc.SetPen(*wxRED_PEN); dc.SetBrush( *wxWHITE_BRUSH ); @@ -694,6 +736,51 @@ void MyCanvas::DrawDefault(wxDC& dc) dc.DrawLine(400, 270, 400, 310); dc.DrawLine(300, 300, 410, 300); + // 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 + // showing. With a size of 40, it draws as expected: + // it just shows a white rectangle with red outline. + int totalWidth = 70; + int totalHeight = 70; + wxBitmap bitmap2(totalWidth, totalHeight); + + wxMemoryDC memdc2; + memdc2.SelectObject(bitmap2); + + wxBrush yellowBrush(wxColour(255, 255, 0), wxSOLID); + memdc2.SetBackground(yellowBrush); + memdc2.Clear(); + + wxPen yellowPen(wxColour(255, 255, 0), 1, wxSOLID); + + // Now draw a white rectangle with red outline. It should + // entirely eclipse the yellow background. + memdc2.SetPen(*wxRED_PEN); + memdc2.SetBrush(*wxWHITE_BRUSH); + + memdc2.DrawRectangle(0, 0, totalWidth, totalHeight); + + memdc2.SetPen(wxNullPen); + memdc2.SetBrush(wxNullBrush); + memdc2.SelectObject(wxNullBitmap); + + dc.DrawBitmap(bitmap2, 500, 270); + + // Repeat, but draw directly on dc + // Draw a yellow rectangle filling the bitmap + + x = 600; int y = 270; + dc.SetPen(yellowPen); + dc.SetBrush(yellowBrush); + dc.DrawRectangle(x, y, totalWidth, totalHeight); + + // Now draw a white rectangle with red outline. It should + // entirely eclipse the yellow background. + dc.SetPen(*wxRED_PEN); + dc.SetBrush(*wxWHITE_BRUSH); + + dc.DrawRectangle(x, y, totalWidth, totalHeight); } void MyCanvas::DrawText(wxDC& dc) @@ -789,7 +876,8 @@ void MyCanvas::DrawWithLogicalOps(wxDC& dc) dc.SetPen(wxPen(m_owner->m_colourForeground, 1, wxSOLID)); dc.SetBrush(*wxTRANSPARENT_BRUSH); - for ( size_t n = 0; n < WXSIZEOF(rasterOperations); n++ ) + size_t n; + for ( n = 0; n < WXSIZEOF(rasterOperations); n++ ) { wxCoord x = 20 + 150*(n%4), y = 20 + 100*(n/4); @@ -800,6 +888,50 @@ void MyCanvas::DrawWithLogicalOps(wxDC& dc) dc.DrawLine(x, y, x + w, y + h); dc.DrawLine(x + w, y, x, y + h); } + + // now some filled rectangles + dc.SetBrush(wxBrush(m_owner->m_colourForeground, wxSOLID)); + + for ( n = 0; n < WXSIZEOF(rasterOperations); n++ ) + { + wxCoord x = 20 + 150*(n%4), + y = 500 + 100*(n/4); + + dc.DrawText(rasterOperations[n].name, x, y - 20); + dc.SetLogicalFunction(rasterOperations[n].rop); + dc.DrawRectangle(x, y, w, h); + } +} + +void MyCanvas::DrawRegions(wxDC& dc) +{ + dc.SetBrush( *wxWHITE_BRUSH ); + dc.SetPen( *wxTRANSPARENT_PEN ); + dc.DrawRectangle( 10,10,310,310 ); + + dc.SetClippingRegion( 20,20,100,270 ); + + dc.SetBrush( *wxRED_BRUSH ); + dc.DrawRectangle( 10,10,310,310 ); + + dc.SetClippingRegion( 20,20,100,100 ); + + dc.SetBrush( *wxCYAN_BRUSH ); + dc.DrawRectangle( 10,10,310,310 ); + + dc.DestroyClippingRegion(); + dc.SetClippingRegion( 120,30,100,270 ); + + dc.SetBrush( *wxGREY_BRUSH ); + dc.DrawRectangle( 10,10,310,310 ); + + if (m_smile_bmp.Ok()) + { + dc.DrawBitmap( m_smile_bmp, 140, 20, TRUE ); + dc.DrawBitmap( m_smile_bmp, 140, 290, TRUE ); + dc.DrawBitmap( m_smile_bmp, 110, 80, TRUE ); + dc.DrawBitmap( m_smile_bmp, 210, 80, TRUE ); + } } void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) @@ -816,12 +948,31 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) if ( m_owner->m_colourBackground.Ok() ) dc.SetTextBackground( m_owner->m_colourBackground ); + if ( m_owner->m_textureBackground) { + if ( ! m_owner->m_backgroundBrush.Ok() ) { + wxBrush b(wxColour(0,128,0), wxSOLID); + dc.SetBackground(b); + } + } + + dc.Clear(); + + if ( m_owner->m_textureBackground) { + dc.SetPen(*wxMEDIUM_GREY_PEN); + for (int i=0; i<200; i++) + dc.DrawLine(0, i*10, i*10, 0); + } + switch ( m_show ) { case Show_Default: DrawDefault(dc); break; + case Show_Regions: + DrawRegions(dc); + break; + case Show_Text: DrawText(dc); break; @@ -835,8 +986,10 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) case Show_Polygons: DrawTestPoly( 0, 100, dc, 0 ); +/* DrawTestPoly( 33, 500, dc, 1 ); DrawTestPoly( 43, 1000, dc, 2 ); +*/ break; case Show_Mask: @@ -893,6 +1046,7 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) 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->AppendSeparator(); menuFile->Append(File_About, "&About...\tCtrl-A", "Show about dialog"); menuFile->AppendSeparator(); @@ -928,6 +1082,7 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) 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); // now append the freshly created menu to the menu bar... wxMenuBar *menuBar = new wxMenuBar; @@ -955,6 +1110,7 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) m_backgroundMode = wxSOLID; m_colourForeground = *wxRED; m_colourBackground = *wxBLUE; + m_textureBackground = FALSE; m_canvas = new MyCanvas( this ); m_canvas->SetScrollbars( 10, 10, 100, 240 ); @@ -971,8 +1127,10 @@ void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) { wxString msg; - msg.Printf( _T("This is the about dialog of the drawing sample.\n") - _T("Copyright (c) Robert Roebling 1999") + 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("Copyright (c) Robert Roebling 1999") ); wxMessageBox(msg, "About Drawing", wxOK | wxICON_INFORMATION, this); @@ -1060,6 +1218,10 @@ void MyFrame::OnOption(wxCommandEvent& event) : wxSOLID; break; + case Colour_TextureBackgound: + m_textureBackground = ! m_textureBackground; + break; + default: // skip Refresh() return;