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extended (wxMask test) and reorganized the drawing sample

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5661 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2000-01-26 00:02:15 +00:00
parent a58a12e9b7
commit 568708e29f
4 changed files with 310 additions and 171 deletions
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479
samples/drawing/drawing.cpp
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@@ -16,6 +16,7 @@
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
// headers // headers
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
#ifdef __GNUG__ #ifdef __GNUG__
#pragma implementation "drawing.cpp" #pragma implementation "drawing.cpp"
#pragma interface "drawing.cpp" #pragma interface "drawing.cpp"
@@ -39,11 +40,38 @@
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
// ressources // ressources
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
// the application icon // the application icon
#if defined(__WXGTK__) || defined(__WXMOTIF__) #if defined(__WXGTK__) || defined(__WXMOTIF__)
#include "mondrian.xpm" #include "mondrian.xpm"
#endif #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
};
// ----------------------------------------------------------------------------
// global variables
// ----------------------------------------------------------------------------
static wxBitmap gs_bmpNoMask,
gs_bmpWithColMask,
gs_bmpMask,
gs_bmpWithMask,
gs_bmp4,
gs_bmp36;
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
// private classes // private classes
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
@@ -59,6 +87,9 @@ public:
// initialization (doing it here and not in the ctor allows to have an error // initialization (doing it here and not in the ctor allows to have an error
// return: if OnInit() returns false, the application terminates) // return: if OnInit() returns false, the application terminates)
virtual bool OnInit(); virtual bool OnInit();
protected:
bool LoadImages();
}; };
class MyCanvas; class MyCanvas;
@@ -73,6 +104,7 @@ public:
// event handlers (these functions should _not_ be virtual) // event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event); void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event); void OnAbout(wxCommandEvent& event);
void OnShow(wxCommandEvent &event);
void OnOption(wxCommandEvent &event); void OnOption(wxCommandEvent &event);
wxColour SelectColour(); wxColour SelectColour();
@@ -102,15 +134,23 @@ class MyCanvas: public wxScrolledWindow
public: public:
MyCanvas( MyFrame *parent ); MyCanvas( MyFrame *parent );
void DrawTestPoly( int x, int y, wxDC &dc ,int transparent );
void DrawTestLines( int x, int y, int width, wxDC &dc );
void OnPaint(wxPaintEvent &event); void OnPaint(wxPaintEvent &event);
void OnMouseMove(wxMouseEvent &event); void OnMouseMove(wxMouseEvent &event);
void Show(ScreenToShow show) { m_show = show; Refresh(); }
protected: 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 DrawDefault(wxDC& dc);
private: private:
MyFrame *m_owner;
ScreenToShow m_show;
DECLARE_EVENT_TABLE() DECLARE_EVENT_TABLE()
}; };
@@ -122,8 +162,16 @@ private:
enum enum
{ {
// menu items // menu items
Minimal_Quit = 1, File_Quit = 1,
Minimal_About, File_About,
MenuShow_First,
File_ShowDefault = MenuShow_First,
File_ShowText,
File_ShowLines,
File_ShowPolygons,
File_ShowMask,
MenuShow_Last = File_ShowMask,
MenuOption_First, MenuOption_First,
@@ -175,6 +223,48 @@ IMPLEMENT_APP(MyApp)
// the application class // 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);
gs_bmpMask.SetDepth(1);
wxMask *mask = new wxMask(gs_bmpMask);
gs_bmpWithMask.SetMask(mask);
mask = new wxMask(gs_bmpWithColMask, *wxWHITE);
gs_bmpWithColMask.SetMask(mask);
return TRUE;
}
// `Main program' equivalent: the program execution "starts" here // `Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit() bool MyApp::OnInit()
{ {
@@ -186,9 +276,17 @@ bool MyApp::OnInit()
frame->Show(TRUE); frame->Show(TRUE);
SetTopWindow(frame); SetTopWindow(frame);
// success: wxApp::OnRun() will be called which will enter the main message if ( !LoadImages() )
// loop and the application will run. If we returned FALSE here, the {
// application would exit immediately. 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; return TRUE;
} }
@@ -206,6 +304,7 @@ 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 //draw a polygon and an overlapping rectangle
@@ -221,53 +320,8 @@ MyCanvas::MyCanvas( MyFrame *parent ) : wxScrolledWindow( parent )
//variations are endless using other logical functions //variations are endless using other logical functions
void MyCanvas::DrawTestPoly( int x, int y,wxDC &dc,int transparent ) void MyCanvas::DrawTestPoly( int x, int y,wxDC &dc,int transparent )
{ {
char pathfile[80]; wxBrush* brush4 = new wxBrush(gs_bmp4);
wxBrush* brush36 = new wxBrush(gs_bmp36);
#ifdef __WXMSW__
//this if run from ide project file
sprintf(pathfile,"./drawing/pat%i.bmp",4);
wxBitmap* nonMonoBitmap4 = new wxBitmap(32,32,-1);
nonMonoBitmap4->LoadFile(pathfile,wxBITMAP_TYPE_BMP);
sprintf(pathfile,"./drawing/pat%i.bmp",36);
wxBitmap* nonMonoBitmap36 = new wxBitmap(32,32,-1);
nonMonoBitmap36->LoadFile(pathfile,wxBITMAP_TYPE_BMP);
#else
sprintf(pathfile,"./pat%i.bmp",4);
wxBitmap* nonMonoBitmap4 = new wxBitmap(32,32,-1);
nonMonoBitmap4->LoadFile(pathfile,wxBITMAP_TYPE_BMP);
sprintf(pathfile,"./pat%i.bmp",36);
wxBitmap* nonMonoBitmap36 = new wxBitmap(32,32,-1);
nonMonoBitmap36->LoadFile(pathfile,wxBITMAP_TYPE_BMP);
#endif
if ( !nonMonoBitmap4->Ok() || !nonMonoBitmap36->Ok() )
{
static bool s_errorGiven = FALSE;
if ( !s_errorGiven )
{
wxLogError("Couldn't find bitmap files near the program file, "
"please copy them there.");
s_errorGiven = TRUE;
}
}
//set mask to monochrome bitmap based on color bitmap
wxColour white("WHITE");
wxPen _Pen = wxPen(white,1,wxSOLID);
wxColour black("BLACK");
wxMask* monochrome_mask4 = new wxMask(*nonMonoBitmap4,black);
nonMonoBitmap4->SetMask(monochrome_mask4);
wxMask* monochrome_mask36 = new wxMask(*nonMonoBitmap36,black);
nonMonoBitmap36->SetMask(monochrome_mask36);
wxBrush* _brush4 = new wxBrush(*nonMonoBitmap4);
wxBrush* _brush36 = new wxBrush(*nonMonoBitmap36);
wxPoint todraw[5]; wxPoint todraw[5];
todraw[0].x=(long)x+100; todraw[0].x=(long)x+100;
@@ -298,18 +352,16 @@ void MyCanvas::DrawTestPoly( int x, int y,wxDC &dc,int transparent )
case 0: case 0:
{ {
dc.SetPen( wxPen( "black", 4, wxSOLID) ); dc.SetPen( wxPen( "black", 4, wxSOLID) );
dc.SetBrush( *_brush4 ); dc.SetBrush( *brush4 );
dc.SetTextForeground(*wxGREEN); dc.SetTextForeground(*wxGREEN);
// dc.SetTextBackground(*wxBLUE);
dc.SetTextBackground(m_owner->m_colourForeground); dc.SetTextBackground(m_owner->m_colourForeground);
dc.SetLogicalFunction(wxCOPY); dc.SetLogicalFunction(wxCOPY);
dc.DrawPolygon(5,todraw,0,0,wxWINDING_RULE); dc.DrawPolygon(5,todraw,0,0,wxWINDING_RULE);
//don't understand hwo but the outline is also depending on logicalfunction //don't understand hwo but the outline is also depending on logicalfunction
dc.SetPen( wxPen( "red", 4, wxSOLID) ); dc.SetPen( wxPen( "red", 4, wxSOLID) );
dc.SetBrush( *_brush36 ); dc.SetBrush( *brush36 );
dc.SetTextForeground(*wxCYAN); dc.SetTextForeground(*wxCYAN);
// dc.SetTextBackground(*wxRED);
dc.SetTextBackground(m_owner->m_colourBackground); dc.SetTextBackground(m_owner->m_colourBackground);
dc.SetLogicalFunction(wxCOPY); dc.SetLogicalFunction(wxCOPY);
dc.DrawRectangle( x+10, y+10, 200, 200 ); dc.DrawRectangle( x+10, y+10, 200, 200 );
@@ -320,140 +372,140 @@ void MyCanvas::DrawTestPoly( int x, int y,wxDC &dc,int transparent )
case 1: //now with transparent fillpatterns case 1: //now with transparent fillpatterns
{ {
wxBitmap* _blitbitmap = new wxBitmap(600,400); wxBitmap* bmpBlit = new wxBitmap(600,400);
wxMemoryDC* _memDC= new wxMemoryDC(); wxMemoryDC* memDC= new wxMemoryDC();
// wxBrush _clearbrush(*wxGREEN,wxSOLID); // wxBrush _clearbrush(*wxGREEN,wxSOLID);
wxBrush _clearbrush(*wxBLACK,wxSOLID); wxBrush _clearbrush(*wxBLACK,wxSOLID);
_memDC->SelectObject(*_blitbitmap); memDC->SelectObject(*bmpBlit);
_memDC->BeginDrawing(); memDC->BeginDrawing();
_memDC->SetBackground(_clearbrush); memDC->SetBackground(_clearbrush);
_memDC->Clear(); memDC->Clear();
_memDC->SetBackground(wxNullBrush); memDC->SetBackground(wxNullBrush);
_memDC->SetPen( wxPen( "black", 4, wxSOLID) ); memDC->SetPen( wxPen( "black", 4, wxSOLID) );
_memDC->SetBrush( wxNullBrush); memDC->SetBrush( wxNullBrush);
_memDC->SetBrush( *_brush4 ); memDC->SetBrush( *brush4 );
_memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black) memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black)
_memDC->SetTextBackground(*wxWHITE); // 1s --> 0xFFFFFF (white) memDC->SetTextBackground(*wxWHITE); // 1s --> 0xFFFFFF (white)
_memDC->SetLogicalFunction(wxAND_INVERT); memDC->SetLogicalFunction(wxAND_INVERT);
// BLACK OUT the opaque pixels and leave the rest as is // BLACK OUT the opaque pixels and leave the rest as is
_memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE); memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE);
// Set background and foreground colors for fill pattern // Set background and foreground colors for fill pattern
//the previous blacked out pixels are now merged with the layer color //the previous blacked out pixels are now merged with the layer color
//while the non blacked out pixels stay as they are. //while the non blacked out pixels stay as they are.
_memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black) memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black)
//now define what will be the color of the fillpattern parts that are not transparent //now define what will be the color of the fillpattern parts that are not transparent
// _memDC->SetTextBackground(*wxBLUE); // memDC->SetTextBackground(*wxBLUE);
_memDC->SetTextBackground(m_owner->m_colourForeground); memDC->SetTextBackground(m_owner->m_colourForeground);
_memDC->SetLogicalFunction(wxOR); memDC->SetLogicalFunction(wxOR);
//don't understand how but the outline is also depending on logicalfunction //don't understand how but the outline is also depending on logicalfunction
_memDC->SetPen( wxPen( "red", 4, wxSOLID) ); memDC->SetPen( wxPen( "red", 4, wxSOLID) );
_memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE); memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE);
_memDC->SetLogicalFunction(wxCOPY); memDC->SetLogicalFunction(wxCOPY);
_memDC->SetPen( wxPen( "black", 4, wxSOLID) ); memDC->SetPen( wxPen( "black", 4, wxSOLID) );
_memDC->SetBrush( wxNullBrush); memDC->SetBrush( wxNullBrush);
_memDC->SetBrush( *_brush36 ); memDC->SetBrush( *brush36 );
_memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black) memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black)
_memDC->SetTextBackground(*wxWHITE); // 1s --> 0xFFFFFF (white) memDC->SetTextBackground(*wxWHITE); // 1s --> 0xFFFFFF (white)
_memDC->SetLogicalFunction(wxAND_INVERT); memDC->SetLogicalFunction(wxAND_INVERT);
_memDC->DrawRectangle( 10, 10, 200, 200 ); memDC->DrawRectangle( 10, 10, 200, 200 );
// Set background and foreground colors for fill pattern // Set background and foreground colors for fill pattern
//the previous blacked out pixels are now merged with the layer color //the previous blacked out pixels are now merged with the layer color
//while the non blacked out pixels stay as they are. //while the non blacked out pixels stay as they are.
_memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black) memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black)
//now define what will be the color of the fillpattern parts that are not transparent //now define what will be the color of the fillpattern parts that are not transparent
// _memDC->SetTextBackground(*wxRED); // memDC->SetTextBackground(*wxRED);
_memDC->SetTextBackground(m_owner->m_colourBackground); memDC->SetTextBackground(m_owner->m_colourBackground);
_memDC->SetLogicalFunction(wxOR); memDC->SetLogicalFunction(wxOR);
//don't understand how but the outline is also depending on logicalfunction //don't understand how but the outline is also depending on logicalfunction
_memDC->SetPen( wxPen( "yellow", 4, wxSOLID) ); memDC->SetPen( wxPen( "yellow", 4, wxSOLID) );
_memDC->DrawRectangle( 10, 10, 200, 200 ); memDC->DrawRectangle( 10, 10, 200, 200 );
_memDC->SetBrush(wxNullBrush); memDC->SetBrush(wxNullBrush);
_memDC->SetPen(wxNullPen); memDC->SetPen(wxNullPen);
_memDC->EndDrawing(); memDC->EndDrawing();
dc.Blit(x,y,600,400,_memDC,0,0,wxCOPY); dc.Blit(x,y,600,400,memDC,0,0,wxCOPY);
delete _blitbitmap; delete bmpBlit;
delete _memDC; delete memDC;
break; break;
} }
case 2: //now with transparent inversed fillpatterns case 2: //now with transparent inversed fillpatterns
{ {
wxBitmap* _blitbitmap = new wxBitmap(600,400); wxBitmap* bmpBlit = new wxBitmap(600,400);
wxMemoryDC* _memDC= new wxMemoryDC(); wxMemoryDC* memDC= new wxMemoryDC();
wxBrush _clearbrush(*wxWHITE,wxSOLID); wxBrush _clearbrush(*wxWHITE,wxSOLID);
_memDC->SelectObject(*_blitbitmap); memDC->SelectObject(*bmpBlit);
_memDC->BeginDrawing(); memDC->BeginDrawing();
_memDC->SetBackground(_clearbrush); memDC->SetBackground(_clearbrush);
_memDC->Clear(); memDC->Clear();
_memDC->SetBackground(wxNullBrush); memDC->SetBackground(wxNullBrush);
_memDC->SetPen( wxPen( "black", 4, wxSOLID) ); memDC->SetPen( wxPen( "black", 4, wxSOLID) );
_memDC->SetBrush( *_brush4 ); memDC->SetBrush( *brush4 );
_memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black) memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black)
_memDC->SetTextForeground(*wxWHITE); // 1s --> 0xFFFFFF (white) memDC->SetTextForeground(*wxWHITE); // 1s --> 0xFFFFFF (white)
_memDC->SetLogicalFunction(wxAND_INVERT); memDC->SetLogicalFunction(wxAND_INVERT);
// BLACK OUT the opaque pixels and leave the rest as is // BLACK OUT the opaque pixels and leave the rest as is
_memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE); memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE);
// Set background and foreground colors for fill pattern // Set background and foreground colors for fill pattern
//the previous blacked out pixels are now merged with the layer color //the previous blacked out pixels are now merged with the layer color
//while the non blacked out pixels stay as they are. //while the non blacked out pixels stay as they are.
_memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black) memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black)
//now define what will be the color of the fillpattern parts that are not transparent //now define what will be the color of the fillpattern parts that are not transparent
_memDC->SetTextForeground(m_owner->m_colourForeground); memDC->SetTextForeground(m_owner->m_colourForeground);
_memDC->SetLogicalFunction(wxOR); memDC->SetLogicalFunction(wxOR);
//don't understand how but the outline is also depending on logicalfunction //don't understand how but the outline is also depending on logicalfunction
_memDC->SetPen( wxPen( "red", 4, wxSOLID) ); memDC->SetPen( wxPen( "red", 4, wxSOLID) );
_memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE); memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE);
_memDC->SetLogicalFunction(wxCOPY); memDC->SetLogicalFunction(wxCOPY);
_memDC->SetPen( wxPen( "black", 4, wxSOLID) ); memDC->SetPen( wxPen( "black", 4, wxSOLID) );
_memDC->SetBrush( *_brush36 ); memDC->SetBrush( *brush36 );
_memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black) memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black)
_memDC->SetTextForeground(*wxWHITE); // 1s --> 0xFFFFFF (white) memDC->SetTextForeground(*wxWHITE); // 1s --> 0xFFFFFF (white)
_memDC->SetLogicalFunction(wxAND_INVERT); memDC->SetLogicalFunction(wxAND_INVERT);
_memDC->DrawRectangle( 10,10, 200, 200 ); memDC->DrawRectangle( 10,10, 200, 200 );
// Set background and foreground colors for fill pattern // Set background and foreground colors for fill pattern
//the previous blacked out pixels are now merged with the layer color //the previous blacked out pixels are now merged with the layer color
//while the non blacked out pixels stay as they are. //while the non blacked out pixels stay as they are.
_memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black) memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black)
//now define what will be the color of the fillpattern parts that are not transparent //now define what will be the color of the fillpattern parts that are not transparent
_memDC->SetTextForeground(m_owner->m_colourBackground); memDC->SetTextForeground(m_owner->m_colourBackground);
_memDC->SetLogicalFunction(wxOR); memDC->SetLogicalFunction(wxOR);
//don't understand how but the outline is also depending on logicalfunction //don't understand how but the outline is also depending on logicalfunction
_memDC->SetPen( wxPen( "yellow", 4, wxSOLID) ); memDC->SetPen( wxPen( "yellow", 4, wxSOLID) );
_memDC->DrawRectangle( 10, 10, 200, 200 ); memDC->DrawRectangle( 10, 10, 200, 200 );
_memDC->SetBrush(wxNullBrush); memDC->SetBrush(wxNullBrush);
_memDC->SetPen(wxNullPen); memDC->SetPen(wxNullPen);
dc.Blit(x,y,600,400,_memDC,0,0,wxCOPY); dc.Blit(x,y,600,400,memDC,0,0,wxCOPY);
delete _blitbitmap; delete bmpBlit;
delete _memDC; delete memDC;
} }
} }
delete _brush4; delete brush4;
delete _brush36; delete brush36;
} }
void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc ) void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc )
@@ -503,20 +555,8 @@ void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc )
} }
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 // mark the origin
dc.DrawCircle(0, 0, 10); dc.DrawCircle(0, 0, 10);
#if !(defined __WXGTK__) && !(defined __WXMOTIF__) #if !(defined __WXGTK__) && !(defined __WXMOTIF__)
@@ -524,6 +564,19 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
dc.FloodFill(0, 0, wxColour(255, 0, 0)); dc.FloodFill(0, 0, wxColour(255, 0, 0));
#endif // #endif //
dc.DrawIcon( wxICON(mondrian), 410, 40 );
// test the rectangle drawing - there should be no pixels between the rect
// and the lines
dc.SetPen(*wxTRANSPARENT_PEN);
dc.DrawRectangle(350, 170, 49, 29);
dc.SetPen(*wxRED_PEN);
dc.DrawLine(400, 160, 400, 210);
dc.DrawLine(340, 200, 410, 200);
}
void MyCanvas::DrawText(wxDC& dc)
{
// set underlined font for testing // set underlined font for testing
dc.SetFont( wxFont(12, wxMODERN, wxNORMAL, wxNORMAL, TRUE) ); dc.SetFont( wxFont(12, wxMODERN, wxNORMAL, wxNORMAL, TRUE) );
dc.DrawText( "This is text", 110, 10 ); dc.DrawText( "This is text", 110, 10 );
@@ -551,32 +604,102 @@ void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
text.Printf( "Dimensions are length %ld, height %ld, descent %ld", length, height, descent ); text.Printf( "Dimensions are length %ld, height %ld, descent %ld", length, height, descent );
dc.DrawText( text, 110, 80 ); dc.DrawText( text, 110, 80 );
dc.DrawRectangle( 100, 40, 4, height );
text.Printf( "CharHeight() returns: %d", dc.GetCharHeight() ); text.Printf( "CharHeight() returns: %d", dc.GetCharHeight() );
dc.DrawText( text, 110, 120 ); dc.DrawText( text, 110, 120 );
dc.DrawIcon( wxICON(mondrian), 310, 40 ); dc.DrawRectangle( 100, 40, 4, height );
}
// test the rectangle drawing - there should be no pixels between the rect void MyCanvas::DrawImages(wxDC& dc)
// and the lines {
dc.SetPen(*wxTRANSPARENT_PEN); static const struct
dc.DrawRectangle(350, 170, 49, 29); {
dc.SetPen(*wxRED_PEN); const wxChar *name;
dc.DrawLine(400, 160, 400, 210); int rop;
dc.DrawLine(340, 200, 410, 200); } 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, 200, 0, 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);
DrawTestLines( 0, 400, 1, dc ); int cx = gs_bmpWithColMask.GetWidth(),
cy = gs_bmpWithColMask.GetHeight();
DrawTestLines( 0, 600, 2, dc ); wxMemoryDC memDC;
for ( size_t n = 0; n < WXSIZEOF(rasterOperations); n++ )
{
wxCoord x = 120 + 150*(n%4),
y = 20 + 100*(n/4);
DrawTestLines( 0, 800, 6, 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);
}
}
DrawTestPoly( 0, 1000, dc ,0); void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
DrawTestPoly( 33, 1400, dc ,1); {
DrawTestPoly( 43, 1900, dc ,2); 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;
}
} }
void MyCanvas::OnMouseMove(wxMouseEvent &event) void MyCanvas::OnMouseMove(wxMouseEvent &event)
@@ -601,8 +724,11 @@ void MyCanvas::OnMouseMove(wxMouseEvent &event)
// handlers) which process them. It can be also done at run-time, but for the // 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. // simple menu events like this the static method is much simpler.
BEGIN_EVENT_TABLE(MyFrame, wxFrame) BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU (Minimal_Quit, MyFrame::OnQuit) EVT_MENU (File_Quit, MyFrame::OnQuit)
EVT_MENU (Minimal_About, MyFrame::OnAbout) EVT_MENU (File_About, MyFrame::OnAbout)
EVT_MENU_RANGE(MenuShow_First, MenuShow_Last, MyFrame::OnShow)
EVT_MENU_RANGE(MenuOption_First, MenuOption_Last, MyFrame::OnOption) EVT_MENU_RANGE(MenuOption_First, MenuOption_Last, MyFrame::OnOption)
END_EVENT_TABLE() END_EVENT_TABLE()
@@ -614,9 +740,15 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
SetIcon(wxICON(mondrian)); SetIcon(wxICON(mondrian));
wxMenu *menuFile = new wxMenu; 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->AppendSeparator(); menuFile->AppendSeparator();
menuFile->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program"); menuFile->Append(File_About, "&About...\tCtrl-A", "Show about dialog");
menuFile->AppendSeparator();
menuFile->Append(File_Quit, "E&xit\tAlt-X", "Quit this program");
wxMenu *menuMapMode = new wxMenu; wxMenu *menuMapMode = new wxMenu;
menuMapMode->Append( MapMode_Text, "&TEXT map mode" ); menuMapMode->Append( MapMode_Text, "&TEXT map mode" );
@@ -698,7 +830,12 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
wxMessageBox(msg, "About Drawing", wxOK | wxICON_INFORMATION, this); 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()) switch (event.GetInt())
{ {

2
samples/drawing/drawing.rc
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@@ -1 +1,3 @@
#include "wx/msw/wx.rc" #include "wx/msw/wx.rc"
mondrian ICON "mondrian.ico"

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