X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bc3cedfa48ad78bb17b15458c7a499535941a82f..d15040492413b54a530b5a291b26750f3d265d23:/samples/drawing/drawing.cpp?ds=sidebyside diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp index 1c67694c32..e08e04250d 100644 --- a/samples/drawing/drawing.cpp +++ b/samples/drawing/drawing.cpp @@ -43,7 +43,7 @@ // ---------------------------------------------------------------------------- // the application icon -#if defined(__WXGTK__) || defined(__WXMOTIF__) +#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__) #include "mondrian.xpm" #endif @@ -58,22 +58,25 @@ enum ScreenToShow Show_Default, Show_Text, Show_Lines, + Show_Brushes, Show_Polygons, Show_Mask, Show_Ops, - Show_Regions + Show_Regions, + Show_Circles }; // ---------------------------------------------------------------------------- // 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 +94,11 @@ public: // return: if OnInit() returns false, the application terminates) virtual bool OnInit(); + virtual int OnExit() { DeleteBitmaps(); return 0; } + protected: + void DeleteBitmaps(); + bool LoadImages(); }; @@ -144,14 +151,18 @@ 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); void DrawRegions(wxDC& dc); + void DrawCircles(wxDC& dc); void DrawDefault(wxDC& dc); + void DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime); + private: MyFrame *m_owner; @@ -177,11 +188,13 @@ enum File_ShowDefault = MenuShow_First, File_ShowText, File_ShowLines, + File_ShowBrushes, File_ShowPolygons, File_ShowMask, File_ShowOps, File_ShowRegions, - MenuShow_Last = File_ShowRegions, + File_ShowCircles, + MenuShow_Last = File_ShowCircles, MenuOption_First, @@ -204,6 +217,8 @@ enum LogicalOrigin_MoveUp, LogicalOrigin_MoveLeft, LogicalOrigin_MoveRight, + LogicalOrigin_Set, + LogicalOrigin_Restore, Colour_TextForeground, Colour_TextBackground, @@ -236,6 +251,14 @@ IMPLEMENT_APP(MyApp) bool MyApp::LoadImages() { + 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; + wxPathList pathList; pathList.Add("."); pathList.Add(".."); @@ -243,38 +266,38 @@ bool MyApp::LoadImages() wxString path = pathList.FindValidPath("pat4.bmp"); if ( !path ) return FALSE; - gs_bmp4.LoadFile(path, wxBITMAP_TYPE_BMP); - wxMask* mask4 = new wxMask(gs_bmp4, *wxBLACK); - gs_bmp4.SetMask(mask4); + + /* 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("pat36.bmp"); if ( !path ) return FALSE; - gs_bmp36.LoadFile(path, wxBITMAP_TYPE_BMP); - wxMask* mask36 = new wxMask(gs_bmp36, *wxBLACK); - gs_bmp36.SetMask(mask36); + gs_bmp36->LoadFile(path, wxBITMAP_TYPE_BMP); + wxMask* mask36 = new wxMask(*gs_bmp36, *wxBLACK); + gs_bmp36->SetMask(mask36); path = pathList.FindValidPath("image.bmp"); if ( !path ) return FALSE; - gs_bmpNoMask.LoadFile(path, wxBITMAP_TYPE_BMP); - gs_bmpWithMask.LoadFile(path, wxBITMAP_TYPE_BMP); - gs_bmpWithColMask.LoadFile(path, wxBITMAP_TYPE_BMP); + gs_bmpNoMask->LoadFile(path, wxBITMAP_TYPE_BMP); + gs_bmpWithMask->LoadFile(path, wxBITMAP_TYPE_BMP); + gs_bmpWithColMask->LoadFile(path, wxBITMAP_TYPE_BMP); path = pathList.FindValidPath("mask.bmp"); if ( !path ) return FALSE; - gs_bmpMask.LoadFile(path, wxBITMAP_TYPE_BMP); - -// This is so wrong, it hurts. -// gs_bmpMask.SetDepth(1); -// wxMask *mask = new wxMask(gs_bmpMask); + 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; } @@ -292,11 +315,13 @@ bool MyApp::OnInit() 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 + DeleteBitmaps(); + return FALSE; } @@ -304,6 +329,25 @@ bool MyApp::OnInit() return TRUE; } +void MyApp::DeleteBitmaps() +{ + delete gs_bmpNoMask; + delete gs_bmpWithColMask; + delete gs_bmpMask; + delete gs_bmpWithMask; + delete gs_bmp4; + delete gs_bmp4_mono; + delete gs_bmp36; + + gs_bmpNoMask = NULL; + gs_bmpWithColMask = NULL; + gs_bmpMask = NULL; + gs_bmpWithMask = NULL; + gs_bmp4 = NULL; + gs_bmp4_mono = NULL; + gs_bmp36 = NULL; +} + // ---------------------------------------------------------------------------- // MyCanvas // ---------------------------------------------------------------------------- @@ -315,9 +359,11 @@ BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow) EVT_MOTION (MyCanvas::OnMouseMove) END_EVENT_TABLE() -#include "../image/smile.xpm" +#include "smile.xpm" -MyCanvas::MyCanvas( MyFrame *parent ) : wxScrolledWindow( parent ) +MyCanvas::MyCanvas(MyFrame *parent) + : wxScrolledWindow(parent, -1, wxDefaultPosition, wxDefaultSize, + wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE) { m_owner = parent; m_show = Show_Default; @@ -325,238 +371,90 @@ MyCanvas::MyCanvas( MyFrame *parent ) : wxScrolledWindow( parent ) 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 -// -//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("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 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 ) { - 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("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("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 ); + dc.DrawText("User dash", x + 150, y + 140); + wxPen ud( wxT("black"), width, wxUSER_DASH ); wxDash dash1[1]; dash1[0] = 0; ud.SetDashes( 1, dash1 ); @@ -567,7 +465,7 @@ void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) dash1[0] = 2; ud.SetDashes( 1, dash1 ); dc.DrawLine( x+20, y+160, 100, y+160 ); - dash1[0] = 0xFF; + dash1[0] = 0x7F; ud.SetDashes( 1, dash1 ); dc.DrawLine( x+20, y+170, 100, y+170 ); } @@ -576,19 +474,16 @@ void MyCanvas::DrawDefault(wxDC& dc) { // mark the origin dc.DrawCircle(0, 0, 10); -#if !(defined __WXGTK__) && !(defined __WXMOTIF__) +#if !(defined __WXGTK__) && !(defined __WXMOTIF__) && !(defined __WXMGL__) // not implemented in wxGTK or wxMOTIF :-( 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 - wxIcon m_std_icon = wxTheApp->GetStdIcon(wxICON_INFORMATION); wxCoord rectSize = m_std_icon.GetWidth() + 10; wxCoord x = 100; dc.SetPen(*wxTRANSPARENT_PEN); @@ -781,14 +676,16 @@ void MyCanvas::DrawText(wxDC& dc) dc.DrawText( "This is text", 110, 10 ); dc.DrawRotatedText( "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); } @@ -800,13 +697,31 @@ void MyCanvas::DrawText(wxDC& dc) 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 ); + text.Printf( wxT("Dimensions are length %ld, height %ld, descent %ld"), 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); + dc.DrawText( "There should be no text below", 110, 150 ); + dc.DrawRectangle( 110, y, 100, height ); + + // twice drawn inverted should result in invisible + y += height; + dc.DrawText( "Invisible text", 110, y ); + dc.DrawRectangle( 110, y, 100, height ); + dc.DrawText( "Invisible text", 110, y ); + dc.DrawRectangle( 110, y, 100, height ); + dc.SetLogicalFunction(wxCOPY); + + y += height; + dc.DrawRectangle( 110, y, 100, height ); + dc.DrawText( "Visible text", 110, y ); } static const struct @@ -815,36 +730,36 @@ static const struct int 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) { dc.DrawText("original image", 0, 0); - dc.DrawBitmap(gs_bmpNoMask, 0, 20, 0); + dc.DrawBitmap(*gs_bmpNoMask, 0, 20, 0); dc.DrawText("with colour mask", 0, 100); - dc.DrawBitmap(gs_bmpWithColMask, 0, 120, TRUE); + dc.DrawBitmap(*gs_bmpWithColMask, 0, 120, TRUE); dc.DrawText("the mask image", 0, 200); - dc.DrawBitmap(gs_bmpMask, 0, 220, 0); + dc.DrawBitmap(*gs_bmpMask, 0, 220, 0); dc.DrawText("masked image", 0, 300); - dc.DrawBitmap(gs_bmpWithMask, 0, 320, TRUE); + dc.DrawBitmap(*gs_bmpWithMask, 0, 320, TRUE); - int cx = gs_bmpWithColMask.GetWidth(), - cy = gs_bmpWithColMask.GetHeight(); + int cx = gs_bmpWithColMask->GetWidth(), + cy = gs_bmpWithColMask->GetHeight(); wxMemoryDC memDC; for ( size_t n = 0; n < WXSIZEOF(rasterOperations); n++ ) @@ -853,7 +768,7 @@ void MyCanvas::DrawImages(wxDC& dc) y = 20 + 100*(n/4); dc.DrawText(rasterOperations[n].name, x, y - 20); - memDC.SelectObject(gs_bmpWithColMask); + memDC.SelectObject(*gs_bmpWithColMask); dc.Blit(x, y, cx, cy, &memDC, 0, 0, rasterOperations[n].rop, TRUE); } } @@ -894,29 +809,95 @@ void MyCanvas::DrawWithLogicalOps(wxDC& dc) } } +void MyCanvas::DrawCircles(wxDC& dc) +{ + int x = 100, + y = 100, + r = 20; + + dc.DrawText("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("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("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::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", + 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, 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 ( !firstTime ) + region.Offset(10, 10); + + dc.SetClippingRegion(region); + dc.SetBrush( *wxGREY_BRUSH ); - dc.DrawRectangle( 10,10,310,310 ); + dc.DrawRectangle( x, y, 310, 310 ); + + if (m_smile_bmp.Ok()) + { + 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); PrepareDC(dc); + m_owner->PrepareDC(dc); dc.SetBackgroundMode( m_owner->m_backgroundMode ); @@ -934,7 +915,7 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) } } -// dc.Clear(); + dc.Clear(); if ( m_owner->m_textureBackground) { dc.SetPen(*wxMEDIUM_GREY_PEN); @@ -948,6 +929,10 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) DrawDefault(dc); break; + case Show_Circles: + DrawCircles(dc); + break; + case Show_Regions: DrawRegions(dc); break; @@ -958,15 +943,17 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) case Show_Lines: DrawTestLines( 0, 100, 0, dc ); - DrawTestLines( 0, 300, 1, dc ); - DrawTestLines( 0, 500, 2, dc ); - DrawTestLines( 0, 700, 6, dc ); + DrawTestLines( 0, 320, 1, dc ); + DrawTestLines( 0, 540, 2, dc ); + DrawTestLines( 0, 760, 6, dc ); + break; + + case Show_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: @@ -989,7 +976,7 @@ void MyCanvas::OnMouseMove(wxMouseEvent &event) 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 ); + str.Printf( wxT("Current mouse position: %d,%d"), (int)x, (int)y ); m_owner->SetStatusText( str ); } @@ -1011,7 +998,8 @@ 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, -1, title, pos, size, + wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE) { // set the frame icon SetIcon(wxICON(mondrian)); @@ -1020,10 +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\tF6"); + 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(); @@ -1037,12 +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 ); @@ -1053,21 +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 @@ -1106,7 +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") ); @@ -1115,12 +1108,12 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) void MyFrame::OnShow(wxCommandEvent& event) { - m_canvas->Show((ScreenToShow)(event.GetInt() - MenuShow_First)); + m_canvas->Show((ScreenToShow)(event.GetId() - MenuShow_First)); } void MyFrame::OnOption(wxCommandEvent& event) { - switch (event.GetInt()) + switch (event.GetId()) { case MapMode_Text: m_mapMode = wxMM_TEXT; @@ -1150,6 +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; @@ -1209,10 +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()