X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a56fcaaf46ccce9f6f79b8fad977dfe5a721ea61..8f974c520a8733158591891458fda10fae4c3950:/samples/drawing/drawing.cpp diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp index c0bd806ac8..0e8f8ee757 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__) #include "mondrian.xpm" #endif @@ -61,20 +61,21 @@ enum ScreenToShow 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_bmp4_mono, - 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 @@ -92,7 +93,11 @@ public: // return: if OnInit() returns false, the application terminates) virtual bool OnInit(); + virtual int OnExit() { DeleteBitmaps(); return 0; } + protected: + void DeleteBitmaps(); + bool LoadImages(); }; @@ -151,8 +156,11 @@ protected: 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); + private: MyFrame *m_owner; @@ -182,7 +190,8 @@ enum File_ShowMask, File_ShowOps, File_ShowRegions, - MenuShow_Last = File_ShowRegions, + File_ShowCircles, + MenuShow_Last = File_ShowCircles, MenuOption_First, @@ -237,6 +246,14 @@ 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(".."); @@ -244,41 +261,38 @@ bool MyApp::LoadImages() wxString path = pathList.FindValidPath("pat4.bmp"); if ( !path ) return FALSE; + /* 4 colour bitmap */ - gs_bmp4.LoadFile(path, wxBITMAP_TYPE_BMP); + 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); + 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); + gs_bmpMask->LoadFile(path, wxBITMAP_TYPE_BMP); -// This is so wrong, it hurts. -// gs_bmpMask.SetDepth(1); -// wxMask *mask = new wxMask(gs_bmpMask); + 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; } @@ -301,6 +315,8 @@ bool MyApp::OnInit() "there."); // stop here + DeleteBitmaps(); + return FALSE; } @@ -308,6 +324,17 @@ 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; +} + // ---------------------------------------------------------------------------- // MyCanvas // ---------------------------------------------------------------------------- @@ -319,9 +346,11 @@ 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; @@ -336,15 +365,16 @@ MyCanvas::MyCanvas( MyFrame *parent ) : wxScrolledWindow( parent ) // 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 +// 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_mono = new wxBrush(gs_bmp4_mono); - wxBrush* brush36 = new wxBrush(gs_bmp36); +// 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; @@ -385,15 +415,15 @@ void MyCanvas::DrawTestPoly( int x, int y,wxDC &dc,int transparent ) dc.SetTextForeground(*wxCYAN); dc.SetTextBackground(m_owner->m_colourBackground); 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; @@ -542,8 +572,10 @@ void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) { dc.SetPen( wxPen( "black", width, wxSOLID) ); dc.SetBrush( *wxRED_BRUSH ); + dc.DrawText(wxString::Format("Testing lines of width %d", width), x + 10, y - 10); dc.DrawRectangle( x+10, y+10, 100, 190 ); + dc.DrawText("Solid/dot/short dash/long dash/dot dash", x + 150, y + 10); dc.SetPen( wxPen( "black", width, wxSOLID) ); dc.DrawLine( x+20, y+20, 100, y+20 ); dc.SetPen( wxPen( "black", width, wxDOT) ); @@ -555,6 +587,7 @@ void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) dc.SetPen( wxPen( "black", width, wxDOT_DASH) ); dc.DrawLine( x+20, y+60, 100, y+60 ); + dc.DrawText("Misc hatches", x + 150, y + 70); dc.SetPen( wxPen( "black", width, wxBDIAGONAL_HATCH) ); dc.DrawLine( x+20, y+70, 100, y+70 ); dc.SetPen( wxPen( "black", width, wxCROSSDIAG_HATCH) ); @@ -568,6 +601,7 @@ void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) dc.SetPen( wxPen( "black", width, wxVERTICAL_HATCH) ); dc.DrawLine( x+20, y+120, 100, y+120 ); + dc.DrawText("User dash", x + 150, y + 140); wxPen ud( "black", width, wxUSER_DASH ); wxDash dash1[1]; dash1[0] = 0; @@ -579,7 +613,7 @@ 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 ); } @@ -793,7 +827,7 @@ void MyCanvas::DrawText(wxDC& dc) dc.SetFont( *wxNORMAL_FONT ); wxString text; - dc. SetBackgroundMode(wxTRANSPARENT); + dc.SetBackgroundMode(wxTRANSPARENT); for ( int n = -180; n < 180; n += 30 ) { @@ -816,6 +850,24 @@ void MyCanvas::DrawText(wxDC& dc) 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 @@ -844,16 +896,16 @@ static const struct 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++ ) @@ -862,7 +914,7 @@ 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); } } @@ -903,34 +955,84 @@ 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 (2 copies should be identical)", + 10, 5 + dc.GetCharHeight()); + + DrawRegionsHelper(dc, 10); + DrawRegionsHelper(dc, 350); +} + +void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x) +{ + dc.DestroyClippingRegion(); dc.SetBrush( *wxWHITE_BRUSH ); dc.SetPen( *wxTRANSPARENT_PEN ); - dc.DrawRectangle( 10,10,310,310 ); - - dc.SetClippingRegion( 20,20,100,270 ); - + dc.DrawRectangle( x,50,310,310 ); + + dc.SetClippingRegion( x+10,60,100,270 ); + dc.SetBrush( *wxRED_BRUSH ); - dc.DrawRectangle( 10,10,310,310 ); + dc.DrawRectangle( x,50,310,310 ); + + dc.SetClippingRegion( x+10,60,100,100 ); - dc.SetClippingRegion( 20,20,100,100 ); - dc.SetBrush( *wxCYAN_BRUSH ); - dc.DrawRectangle( 10,10,310,310 ); + dc.DrawRectangle( x,50,310,310 ); + + // 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(); - dc.SetClippingRegion( 120,30,100,270 ); - dc.SetBrush( *wxGREY_BRUSH ); - dc.DrawRectangle( 10,10,310,310 ); - + dc.DrawRectangle( x,50,310,310 ); + 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 ); + 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 ); } } @@ -938,6 +1040,7 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) { wxPaintDC dc(this); PrepareDC(dc); + m_owner->PrepareDC(dc); dc.SetBackgroundMode( m_owner->m_backgroundMode ); @@ -969,6 +1072,10 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) DrawDefault(dc); break; + case Show_Circles: + DrawCircles(dc); + break; + case Show_Regions: DrawRegions(dc); break; @@ -979,9 +1086,9 @@ 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_Polygons: @@ -999,6 +1106,13 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event)) case Show_Ops: DrawWithLogicalOps(dc); break; + + default: + { + dc.SetPen( *wxBLACK_PEN ); + dc.DrawLine( 0,0,100,100 ); + } + } } @@ -1034,7 +1148,8 @@ 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)); @@ -1046,7 +1161,8 @@ 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->Append(File_ShowRegions, "Re&gions screen\tF7"); + menuFile->Append(File_ShowCircles, "&Circles screen\tF8"); menuFile->AppendSeparator(); menuFile->Append(File_About, "&About...\tCtrl-A", "Show about dialog"); menuFile->AppendSeparator(); @@ -1138,12 +1254,12 @@ 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;