From 6386110d028b9b48d95e21e7af56457d69f264e1 Mon Sep 17 00:00:00 2001 From: Vadim Zeitlin Date: Thu, 3 Jan 2002 00:13:35 +0000 Subject: [PATCH] some brush tests git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13318 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- samples/drawing/drawing.cpp | 286 ++++++++---------------------------- 1 file changed, 61 insertions(+), 225 deletions(-) diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp index b3030a39d0..93c4b6df2f 100644 --- a/samples/drawing/drawing.cpp +++ b/samples/drawing/drawing.cpp @@ -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); @@ -186,6 +188,7 @@ enum File_ShowDefault = MenuShow_First, File_ShowText, File_ShowLines, + File_ShowBrushes, File_ShowPolygons, File_ShowMask, File_ShowOps, @@ -366,214 +369,53 @@ 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 ) @@ -1101,12 +943,12 @@ 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 +958,6 @@ 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 +1003,12 @@ 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(); @@ -1255,7 +1091,7 @@ 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") ); -- 2.45.2