// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
+
#ifdef __GNUG__
#pragma implementation "drawing.cpp"
#pragma interface "drawing.cpp"
#endif
#include "wx/colordlg.h"
+#include "wx/image.h"
// ----------------------------------------------------------------------------
// ressources
// ----------------------------------------------------------------------------
+
// the application icon
#if defined(__WXGTK__) || defined(__WXMOTIF__)
#include "mondrian.xpm"
#endif
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+// what do we show on screen (there are too many shapes to put them all on
+// screen simultaneously)
+enum ScreenToShow
+{
+ Show_Default,
+ Show_Text,
+ Show_Lines,
+ Show_Polygons,
+ Show_Mask,
+ Show_Ops
+};
+
+// ----------------------------------------------------------------------------
+// global variables
+// ----------------------------------------------------------------------------
+
+static wxBitmap gs_bmpNoMask,
+ gs_bmpWithColMask,
+ gs_bmpMask,
+ gs_bmpWithMask,
+ gs_bmp4,
+ gs_bmp36;
+
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
// initialization (doing it here and not in the ctor allows to have an error
// return: if OnInit() returns false, the application terminates)
virtual bool OnInit();
+
+protected:
+ bool LoadImages();
};
class MyCanvas;
// event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
+ void OnShow(wxCommandEvent &event);
void OnOption(wxCommandEvent &event);
wxColour SelectColour();
public:
MyCanvas( MyFrame *parent );
- void DrawTestLines( int x, int y, int width, wxDC &dc );
void OnPaint(wxPaintEvent &event);
void OnMouseMove(wxMouseEvent &event);
-
+
+ void Show(ScreenToShow show) { m_show = show; Refresh(); }
+
protected:
- MyFrame *m_owner;
-
+ void DrawTestPoly( int x, int y, wxDC &dc ,int transparent );
+ void DrawTestLines( int x, int y, int width, wxDC &dc );
+ void DrawText(wxDC& dc);
+ void DrawImages(wxDC& dc);
+ void DrawWithLogicalOps(wxDC& dc);
+ void DrawDefault(wxDC& dc);
+
private:
+ MyFrame *m_owner;
+
+ ScreenToShow m_show;
+
DECLARE_EVENT_TABLE()
};
enum
{
// menu items
- Minimal_Quit = 1,
- Minimal_About,
+ File_Quit = 1,
+ File_About,
+
+ MenuShow_First,
+ File_ShowDefault = MenuShow_First,
+ File_ShowText,
+ File_ShowLines,
+ File_ShowPolygons,
+ File_ShowMask,
+ File_ShowOps,
+ MenuShow_Last = File_ShowOps,
MenuOption_First,
// the application class
// ----------------------------------------------------------------------------
+bool MyApp::LoadImages()
+{
+ wxPathList pathList;
+ pathList.Add(".");
+ pathList.Add("..");
+
+ 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);
+
+ 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);
+
+ 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);
+
+ 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);
+
+ wxMask *mask = new wxMask(gs_bmpMask, *wxBLACK);
+ gs_bmpWithMask.SetMask(mask);
+
+ mask = new wxMask(gs_bmpWithColMask, *wxWHITE);
+ gs_bmpWithColMask.SetMask(mask);
+
+ return TRUE;
+}
+
// `Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
frame->Show(TRUE);
SetTopWindow(frame);
- // success: wxApp::OnRun() will be called which will enter the main message
- // loop and the application will run. If we returned FALSE here, the
- // application would exit immediately.
+ 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.");
+
+ // stop here
+ return FALSE;
+ }
+
+ // ok, continue
return TRUE;
}
EVT_MOTION (MyCanvas::OnMouseMove)
END_EVENT_TABLE()
-MyCanvas::MyCanvas( MyFrame *parent )
- : wxScrolledWindow( parent )
+MyCanvas::MyCanvas( MyFrame *parent ) : wxScrolledWindow( parent )
{
- m_owner = parent;
+ m_owner = parent;
+ m_show = Show_Default;
+}
+
+//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 )
+{
+ 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;
+ }
+ }
+
+ delete brush4;
+ delete brush36;
}
void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc )
{
dc.SetPen( wxPen( "black", width, wxSOLID) );
dc.SetBrush( *wxRED_BRUSH );
- dc.DrawRectangle( x+10, y+10, 110, 190 );
-
+ dc.DrawRectangle( x+10, y+10, 100, 190 );
+
dc.SetPen( wxPen( "black", width, wxSOLID) );
dc.DrawLine( x+20, y+20, 100, y+20 );
dc.SetPen( wxPen( "black", width, wxDOT) );
dash1[0] = 0xFF;
ud.SetDashes( 1, dash1 );
dc.DrawLine( x+20, y+170, 100, y+170 );
-
}
-void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
+void MyCanvas::DrawDefault(wxDC& dc)
{
- wxPaintDC dc(this);
- PrepareDC(dc);
- m_owner->PrepareDC(dc);
-
- dc.SetBackgroundMode( m_owner->m_backgroundMode );
- if ( m_owner->m_backgroundBrush.Ok() )
- dc.SetBackground( m_owner->m_backgroundBrush );
- if ( m_owner->m_colourForeground.Ok() )
- dc.SetTextForeground( m_owner->m_colourForeground );
- if ( m_owner->m_colourBackground.Ok() )
- dc.SetTextBackground( m_owner->m_colourBackground );
-
// mark the origin
dc.DrawCircle(0, 0, 10);
#if !(defined __WXGTK__) && !(defined __WXMOTIF__)
dc.FloodFill(0, 0, wxColour(255, 0, 0));
#endif //
+ dc.DrawIcon( wxICON(mondrian), 40, 40 );
+
+ // this is the test for "blitting bitmap into DC damages selected brush"
+ // bug
+ 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);
+
+ // 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);
+
+ dc.SetBrush( *wxBLACK_BRUSH );
+ dc.DrawRectangle( 0, 160, 1000, 300 );
+
+ // draw lines
+ wxBitmap bitmap(20,70);
+ wxMemoryDC memdc;
+ memdc.SelectObject( bitmap );
+ memdc.SetBrush( *wxBLACK_BRUSH );
+ memdc.SetPen( *wxWHITE_PEN );
+ memdc.DrawRectangle(0,0,20,70);
+ memdc.DrawLine( 10,0,10,70 );
+
+ // 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 );
+ memdc.DrawLine( 10,15,12,15 );
+ memdc.DrawLine( 10,20,13,20 );
+
+/*
+ memdc.SetPen(*wxRED_PEN);
+ memdc.DrawLine( 12, 5,12, 5 );
+ memdc.DrawLine( 12,10,13,10 );
+ memdc.DrawLine( 12,15,14,15 );
+ memdc.DrawLine( 12,20,15,20 );
+*/
+
+ // same to the left
+ memdc.DrawLine( 10,25,10,25 );
+ memdc.DrawLine( 10,30, 9,30 );
+ memdc.DrawLine( 10,35, 8,35 );
+ memdc.DrawLine( 10,40, 7,40 );
+
+ // XOR draw lines
+ dc.SetPen(*wxWHITE_PEN);
+ memdc.SetLogicalFunction( wxINVERT );
+ memdc.SetPen( *wxWHITE_PEN );
+ memdc.DrawLine( 10,50,10,50 );
+ memdc.DrawLine( 10,55,11,55 );
+ memdc.DrawLine( 10,60,12,60 );
+ memdc.DrawLine( 10,65,13,65 );
+
+ memdc.DrawLine( 12,50,12,50 );
+ memdc.DrawLine( 12,55,13,55 );
+ memdc.DrawLine( 12,60,14,60 );
+ memdc.DrawLine( 12,65,15,65 );
+
+ memdc.SelectObject( wxNullBitmap );
+ dc.DrawBitmap( bitmap, 10, 170 );
+ wxImage image( bitmap );
+ image.Rescale( 60,210 );
+ bitmap = image.ConvertToBitmap();
+ dc.DrawBitmap( bitmap, 50, 170 );
+
+ // test the rectangle outline drawing - there should be one pixel between
+ // the rect and the lines
+ dc.SetPen(*wxWHITE_PEN);
+ dc.SetBrush( *wxTRANSPARENT_BRUSH );
+ dc.DrawRectangle(150, 170, 49, 29);
+ dc.DrawRectangle(200, 170, 49, 29);
+ dc.SetPen(*wxWHITE_PEN);
+ dc.DrawLine(250, 210, 250, 170);
+ dc.DrawLine(260, 200, 150, 200);
+
+ // test the rectangle filled drawing - there should be one pixel between
+ // the rect and the lines
+ dc.SetPen(*wxTRANSPARENT_PEN);
+ dc.SetBrush( *wxWHITE_BRUSH );
+ dc.DrawRectangle(300, 170, 49, 29);
+ dc.DrawRectangle(350, 170, 49, 29);
+ dc.SetPen(*wxWHITE_PEN);
+ dc.DrawLine(400, 170, 400, 210);
+ dc.DrawLine(300, 200, 410, 200);
+
+ // and now for filled rect with outline
+ dc.SetPen(*wxRED_PEN);
+ dc.SetBrush( *wxWHITE_BRUSH );
+ dc.DrawRectangle(500, 170, 49, 29);
+ dc.DrawRectangle(550, 170, 49, 29);
+ dc.SetPen(*wxWHITE_PEN);
+ dc.DrawLine(600, 170, 600, 210);
+ dc.DrawLine(500, 200, 610, 200);
+
+ // test the rectangle outline drawing - there should be one pixel between
+ // the rect and the lines
+ dc.SetPen(*wxWHITE_PEN);
+ dc.SetBrush( *wxTRANSPARENT_BRUSH );
+ dc.DrawRoundedRectangle(150, 270, 49, 29, 6);
+ dc.DrawRoundedRectangle(200, 270, 49, 29, 6);
+ dc.SetPen(*wxWHITE_PEN);
+ dc.DrawLine(250, 270, 250, 310);
+ dc.DrawLine(150, 300, 260, 300);
+
+ // test the rectangle filled drawing - there should be one pixel between
+ // the rect and the lines
+ dc.SetPen(*wxTRANSPARENT_PEN);
+ dc.SetBrush( *wxWHITE_BRUSH );
+ dc.DrawRoundedRectangle(300, 270, 49, 29, 6);
+ dc.DrawRoundedRectangle(350, 270, 49, 29, 6);
+ dc.SetPen(*wxWHITE_PEN);
+ dc.DrawLine(400, 270, 400, 310);
+ dc.DrawLine(300, 300, 410, 300);
+
+}
+
+void MyCanvas::DrawText(wxDC& dc)
+{
+ // set underlined font for testing
+ dc.SetFont( wxFont(12, wxMODERN, wxNORMAL, wxNORMAL, TRUE) );
dc.DrawText( "This is text", 110, 10 );
+ dc.DrawRotatedText( "That is text", 20, 10, -45 );
+
+ dc.SetFont( *wxNORMAL_FONT );
wxString text;
- dc. SetBackgroundMode(wxSOLID);
+ dc. SetBackgroundMode(wxTRANSPARENT);
for ( int n = -180; n < 180; n += 30 )
{
text.Printf( "Dimensions are length %ld, height %ld, descent %ld", length, height, descent );
dc.DrawText( text, 110, 80 );
- dc.DrawRectangle( 100, 40, 4, height );
-
text.Printf( "CharHeight() returns: %d", dc.GetCharHeight() );
dc.DrawText( text, 110, 120 );
+ dc.DrawRectangle( 100, 40, 4, height );
+}
- dc.DrawIcon( wxICON(mondrian), 310, 40 );
-
- DrawTestLines( 0, 200, 0, dc );
+static const struct
+{
+ const wxChar *name;
+ 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 },
+};
- DrawTestLines( 0, 400, 1, dc );
+void MyCanvas::DrawImages(wxDC& dc)
+{
+ dc.DrawText("original image", 0, 0);
+ dc.DrawBitmap(gs_bmpNoMask, 0, 20, 0);
+ dc.DrawText("with colour mask", 0, 100);
+ dc.DrawBitmap(gs_bmpWithColMask, 0, 120, TRUE);
+ dc.DrawText("the mask image", 0, 200);
+ dc.DrawBitmap(gs_bmpMask, 0, 220, 0);
+ dc.DrawText("masked image", 0, 300);
+ dc.DrawBitmap(gs_bmpWithMask, 0, 320, TRUE);
+
+ int cx = gs_bmpWithColMask.GetWidth(),
+ cy = gs_bmpWithColMask.GetHeight();
+
+ wxMemoryDC memDC;
+ for ( size_t n = 0; n < WXSIZEOF(rasterOperations); n++ )
+ {
+ wxCoord x = 120 + 150*(n%4),
+ y = 20 + 100*(n/4);
- DrawTestLines( 0, 600, 2, dc );
+ dc.DrawText(rasterOperations[n].name, x, y - 20);
+ memDC.SelectObject(gs_bmpWithColMask);
+ dc.Blit(x, y, cx, cy, &memDC, 0, 0, rasterOperations[n].rop, TRUE);
+ }
+}
- DrawTestLines( 0, 800, 6, dc );
+void MyCanvas::DrawWithLogicalOps(wxDC& dc)
+{
+ static const wxCoord w = 60;
+ static const wxCoord h = 60;
+ // reuse the text colour here
+ dc.SetPen(wxPen(m_owner->m_colourForeground, 1, wxSOLID));
+ dc.SetBrush(*wxTRANSPARENT_BRUSH);
+
+ for ( size_t n = 0; n < WXSIZEOF(rasterOperations); n++ )
+ {
+ wxCoord x = 20 + 150*(n%4),
+ y = 20 + 100*(n/4);
+
+ dc.DrawText(rasterOperations[n].name, x, y - 20);
+ dc.SetLogicalFunction(rasterOperations[n].rop);
+ dc.DrawRectangle(x, y, w, h);
+ dc.DrawLine(x, y, x + w, y + h);
+ dc.DrawLine(x + w, y, x, y + h);
+ }
+}
+
+void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
+{
+ wxPaintDC dc(this);
+ PrepareDC(dc);
+ m_owner->PrepareDC(dc);
+
+ dc.SetBackgroundMode( m_owner->m_backgroundMode );
+ if ( m_owner->m_backgroundBrush.Ok() )
+ dc.SetBackground( m_owner->m_backgroundBrush );
+ if ( m_owner->m_colourForeground.Ok() )
+ dc.SetTextForeground( m_owner->m_colourForeground );
+ if ( m_owner->m_colourBackground.Ok() )
+ dc.SetTextBackground( m_owner->m_colourBackground );
+
+ switch ( m_show )
+ {
+ case Show_Default:
+ DrawDefault(dc);
+ break;
+
+ case Show_Text:
+ DrawText(dc);
+ break;
+
+ case Show_Lines:
+ DrawTestLines( 0, 100, 0, dc );
+ DrawTestLines( 0, 300, 1, dc );
+ DrawTestLines( 0, 500, 2, dc );
+ DrawTestLines( 0, 700, 6, dc );
+ break;
+
+ case Show_Polygons:
+ DrawTestPoly( 0, 100, dc, 0 );
+ DrawTestPoly( 33, 500, dc, 1 );
+ DrawTestPoly( 43, 1000, dc, 2 );
+ break;
+
+ case Show_Mask:
+ DrawImages(dc);
+ break;
+
+ case Show_Ops:
+ DrawWithLogicalOps(dc);
+ break;
+ }
}
void MyCanvas::OnMouseMove(wxMouseEvent &event)
// handlers) which process them. It can be also done at run-time, but for the
// simple menu events like this the static method is much simpler.
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
- EVT_MENU (Minimal_Quit, MyFrame::OnQuit)
- EVT_MENU (Minimal_About, MyFrame::OnAbout)
+ EVT_MENU (File_Quit, MyFrame::OnQuit)
+ EVT_MENU (File_About, MyFrame::OnAbout)
+
+ EVT_MENU_RANGE(MenuShow_First, MenuShow_Last, MyFrame::OnShow)
+
EVT_MENU_RANGE(MenuOption_First, MenuOption_Last, MyFrame::OnOption)
END_EVENT_TABLE()
SetIcon(wxICON(mondrian));
wxMenu *menuFile = new wxMenu;
- menuFile->Append(Minimal_About, "&About...\tCtrl-A", "Show about dialog");
+ 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->AppendSeparator();
+ menuFile->Append(File_About, "&About...\tCtrl-A", "Show about dialog");
menuFile->AppendSeparator();
- menuFile->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program");
+ menuFile->Append(File_Quit, "E&xit\tAlt-X", "Quit this program");
wxMenu *menuMapMode = new wxMenu;
menuMapMode->Append( MapMode_Text, "&TEXT map mode" );
m_xAxisReversed =
m_yAxisReversed = FALSE;
m_backgroundMode = wxSOLID;
+ m_colourForeground = *wxRED;
+ m_colourBackground = *wxBLUE;
m_canvas = new MyCanvas( this );
- m_canvas->SetScrollbars( 10, 10, 100, 200 );
+ m_canvas->SetScrollbars( 10, 10, 100, 240 );
}
// event handlers
wxMessageBox(msg, "About Drawing", wxOK | wxICON_INFORMATION, this);
}
-void MyFrame::OnOption(wxCommandEvent &event)
+void MyFrame::OnShow(wxCommandEvent& event)
+{
+ m_canvas->Show((ScreenToShow)(event.GetInt() - MenuShow_First));
+}
+
+void MyFrame::OnOption(wxCommandEvent& event)
{
switch (event.GetInt())
{
projects / wxWidgets.git / blobdiff