Show_Text,
Show_Lines,
Show_Polygons,
- Show_Mask
+ Show_Mask,
+ Show_Ops,
+ 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
// return: if OnInit() returns false, the application terminates)
virtual bool OnInit();
+ virtual int OnExit() { DeleteBitmaps(); return 0; }
+
protected:
+ void DeleteBitmaps();
+
bool LoadImages();
};
void PrepareDC(wxDC& dc);
int m_backgroundMode;
+ int m_textureBackground;
int m_mapMode;
double m_xUserScale;
double m_yUserScale;
void DrawTestLines( int x, int y, int width, 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);
private:
MyFrame *m_owner;
ScreenToShow m_show;
+ wxBitmap m_smile_bmp;
+ wxIcon m_std_icon;
DECLARE_EVENT_TABLE()
};
File_ShowLines,
File_ShowPolygons,
File_ShowMask,
- MenuShow_Last = File_ShowMask,
+ File_ShowOps,
+ File_ShowRegions,
+ File_ShowCircles,
+ MenuShow_Last = File_ShowCircles,
MenuOption_First,
Colour_TextBackground,
Colour_Background,
Colour_BackgroundMode,
+ Colour_TextureBackgound,
- MenuOption_Last = Colour_BackgroundMode
+ MenuOption_Last = Colour_TextureBackgound
};
// ----------------------------------------------------------------------------
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("..");
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);
+ 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;
}
"there.");
// stop here
+ DeleteBitmaps();
+
return FALSE;
}
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
// ----------------------------------------------------------------------------
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* 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;
{
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;
}
delete brush4;
+ delete brush4_mono;
delete brush36;
}
{
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) );
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) );
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;
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 );
-
}
void MyCanvas::DrawDefault(wxDC& dc)
dc.FloodFill(0, 0, wxColour(255, 0, 0));
#endif //
- dc.DrawIcon( wxICON(mondrian), 410, 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
+ wxCoord rectSize = m_std_icon.GetWidth() + 10;
+ wxCoord x = 100;
+ dc.SetPen(*wxTRANSPARENT_PEN);
+ dc.SetBrush( *wxGREEN_BRUSH );
+ 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 );
+
+ if (m_smile_bmp.Ok())
+ dc.DrawBitmap(m_smile_bmp, x + rectSize - 20, rectSize - 10, TRUE);
dc.SetBrush( *wxBLACK_BRUSH );
- dc.SetPen(*wxTRANSPARENT_PEN);
dc.DrawRectangle( 0, 160, 1000, 300 );
// draw lines
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( 12,15,14,15 );
memdc.DrawLine( 12,20,15,20 );
*/
-
+
// same to the left
memdc.DrawLine( 10,25,10,25 );
memdc.DrawLine( 10,30, 9,30 );
memdc.DrawLine( 10,55,11,55 );
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.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 );
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)
dc.SetFont( *wxNORMAL_FONT );
wxString text;
- dc. SetBackgroundMode(wxTRANSPARENT);
+ dc.SetBackgroundMode(wxTRANSPARENT);
for ( int n = -180; n < 180; n += 30 )
{
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 );
}
-void MyCanvas::DrawImages(wxDC& dc)
+static const struct
{
- 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 },
- };
+ 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 },
+};
+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++ )
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);
}
}
+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);
+
+ size_t n;
+ for ( 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);
+ }
+
+ // 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::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.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))
{
wxPaintDC dc(this);
PrepareDC(dc);
+
m_owner->PrepareDC(dc);
dc.SetBackgroundMode( m_owner->m_backgroundMode );
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_Circles:
+ DrawCircles(dc);
+ break;
+
+ case Show_Regions:
+ DrawRegions(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 );
+ DrawTestLines( 0, 320, 1, dc );
+ DrawTestLines( 0, 540, 2, dc );
+ DrawTestLines( 0, 760, 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;
+
+ default:
+ {
+ dc.SetPen( *wxBLACK_PEN );
+ dc.DrawLine( 0,0,100,100 );
+ }
+
}
}
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->AppendSeparator();
menuFile->Append(File_About, "&About...\tCtrl-A", "Show about dialog");
menuFile->AppendSeparator();
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;
m_backgroundMode = wxSOLID;
m_colourForeground = *wxRED;
m_colourBackground = *wxBLUE;
+ m_textureBackground = FALSE;
m_canvas = new MyCanvas( this );
m_canvas->SetScrollbars( 10, 10, 100, 240 );
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);
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;
: wxSOLID;
break;
+ case Colour_TextureBackgound:
+ m_textureBackground = ! m_textureBackground;
+ break;
+
default:
// skip Refresh()
return;
projects / wxWidgets.git / blobdiff