Show_Lines,
Show_Polygons,
Show_Mask,
- Show_Ops
+ Show_Ops,
+ Show_Regions
};
// ----------------------------------------------------------------------------
gs_bmpMask,
gs_bmpWithMask,
gs_bmp4,
+ gs_bmp4_mono,
gs_bmp36;
// ----------------------------------------------------------------------------
void PrepareDC(wxDC& dc);
int m_backgroundMode;
+ int m_textureBackground;
int m_mapMode;
double m_xUserScale;
double m_yUserScale;
void DrawText(wxDC& dc);
void DrawImages(wxDC& dc);
void DrawWithLogicalOps(wxDC& dc);
+ void DrawRegions(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_ShowPolygons,
File_ShowMask,
File_ShowOps,
- MenuShow_Last = File_ShowOps,
+ File_ShowRegions,
+ MenuShow_Last = File_ShowRegions,
MenuOption_First,
Colour_TextBackground,
Colour_Background,
Colour_BackgroundMode,
+ Colour_TextureBackgound,
- MenuOption_Last = Colour_BackgroundMode
+ MenuOption_Last = Colour_TextureBackgound
};
// ----------------------------------------------------------------------------
wxString path = pathList.FindValidPath("pat4.bmp");
if ( !path )
return FALSE;
+ /* 4 colour bitmap */
gs_bmp4.LoadFile(path, wxBITMAP_TYPE_BMP);
- wxMask* mask4 = new wxMask(gs_bmp4, *wxBLACK);
- gs_bmp4.SetMask(mask4);
+ /* 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 )
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* brush4 = new wxBrush(gs_bmp4);
+ wxBrush* brush4_mono = new wxBrush(gs_bmp4_mono);
wxBrush* brush36 = new wxBrush(gs_bmp36);
wxPoint todraw[5];
{
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.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
// 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 );
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)
// 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++ )
+ 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.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::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))
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_Regions:
+ DrawRegions(dc);
+ break;
+
case Show_Text:
DrawText(dc);
break;
case Show_Polygons:
DrawTestPoly( 0, 100, dc, 0 );
+/*
DrawTestPoly( 33, 500, dc, 1 );
DrawTestPoly( 43, 1000, dc, 2 );
+*/
break;
case Show_Mask:
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->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);
: wxSOLID;
break;
+ case Colour_TextureBackgound:
+ m_textureBackground = ! m_textureBackground;
+ break;
+
default:
// skip Refresh()
return;
projects / wxWidgets.git / blobdiff