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@@ -61,6 +61,8 @@ public:
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virtual bool OnInit();
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};
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class MyCanvas;
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// Define a new frame type: this is going to be our main frame
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class MyFrame : public wxFrame
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{
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@@ -71,14 +73,12 @@ public:
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// event handlers (these functions should _not_ be virtual)
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void OnQuit(wxCommandEvent& event);
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void OnAbout(wxCommandEvent& event);
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void OnPaint(wxPaintEvent &event);
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void OnOption(wxCommandEvent &event);
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void OnMouseMove(wxMouseEvent &event);
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wxColour SelectColour();
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void PrepareDC(wxDC& dc);
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protected:
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int m_backgroundMode;
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int m_mapMode;
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double m_xUserScale;
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@@ -90,12 +90,29 @@ protected:
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wxColour m_colourForeground, // these are _text_ colours
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m_colourBackground;
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wxBrush m_backgroundBrush;
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MyCanvas *m_canvas;
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private:
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// any class wishing to process wxWindows events must use this macro
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DECLARE_EVENT_TABLE()
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};
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// define a scrollable canvas for drawing onto
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class MyCanvas: public wxScrolledWindow
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{
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public:
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MyCanvas( MyFrame *parent );
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void DoDrawTests( int x, int y, wxDC &dc );
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void OnPaint(wxPaintEvent &event);
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protected:
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MyFrame *m_owner;
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private:
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DECLARE_EVENT_TABLE()
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};
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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@@ -141,19 +158,6 @@ enum
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// event tables and other macros for wxWindows
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// ----------------------------------------------------------------------------
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// the event tables connect the wxWindows events with the functions (event
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// handlers) which process them. It can be also done at run-time, but for the
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// simple menu events like this the static method is much simpler.
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BEGIN_EVENT_TABLE(MyFrame, wxFrame)
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EVT_MOTION (MyFrame::OnMouseMove)
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EVT_PAINT (MyFrame::OnPaint)
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EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
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EVT_MENU(Minimal_About, MyFrame::OnAbout)
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EVT_MENU_RANGE(MenuOption_First, MenuOption_Last, MyFrame::OnOption)
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END_EVENT_TABLE()
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// Create a new application object: this macro will allow wxWindows to create
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// the application object during program execution (it's better than using a
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@@ -175,7 +179,7 @@ bool MyApp::OnInit()
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{
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// Create the main application window
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MyFrame *frame = new MyFrame("Drawing sample",
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wxPoint(50, 50), wxSize(450, 340));
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wxPoint(50, 50), wxSize(550, 340));
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// Show it and tell the application that it's our main window
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frame->Show(TRUE);
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@@ -188,9 +192,191 @@ bool MyApp::OnInit()
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}
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// ----------------------------------------------------------------------------
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// main frame
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// MyCanvas
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// ----------------------------------------------------------------------------
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// the event tables connect the wxWindows events with the functions (event
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// handlers) which process them.
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BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
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EVT_PAINT (MyCanvas::OnPaint)
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END_EVENT_TABLE()
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MyCanvas::MyCanvas( MyFrame *parent )
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: wxScrolledWindow( parent )
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{
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m_owner = parent;
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}
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void MyCanvas::DoDrawTests( int x, int y, wxDC &dc )
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{
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wxRect rect;
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rect.x = dc.LogicalToDeviceX( x-20 );
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rect.y = dc.LogicalToDeviceY( y-20 );
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rect.width = dc.LogicalToDeviceXRel( 500 );
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rect.height = dc.LogicalToDeviceYRel( 200 );
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if (!IsExposed(rect)) return;
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dc.DrawLine( x , y, x , y );
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dc.DrawLine( x+ 20, y, x+ 20, y+ 1 );
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dc.DrawLine( x+ 40, y, x+ 40, y+ 2 );
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dc.DrawLine( x+ 60, y, x+ 60, y+ 3 );
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dc.DrawLine( x+ 80, y, x+ 80, y+ 4 );
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dc.DrawLine( x+100, y, x+100, y+ 5 );
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dc.DrawLine( x+120, y, x+120, y+ 6 );
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dc.DrawLine( x+140, y, x+140, y+10 );
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dc.DrawLine( x+160, y, x+160, y+20 );
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dc.DrawLine( x+180, y, x+180, y+30 );
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dc.DrawLine( x+200, y, x+200 , y );
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dc.DrawLine( x+220, y, x+220+ 1, y+ 1 );
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dc.DrawLine( x+240, y, x+240+ 2, y+ 2 );
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dc.DrawLine( x+260, y, x+260+ 3, y+ 3 );
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dc.DrawLine( x+280, y, x+280+ 4, y+ 4 );
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dc.DrawLine( x+300, y, x+300+ 5, y+ 5 );
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dc.DrawLine( x+320, y, x+320+ 6, y+ 6 );
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dc.DrawLine( x+340, y, x+340+10, y+10 );
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dc.DrawLine( x+360, y, x+360+20, y+20 );
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dc.DrawLine( x+380, y, x+380+30, y+30 );
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dc.DrawLine( x+420, y , x+420 , y );
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dc.DrawLine( x+420, y+10, x+420+1, y+10 );
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dc.DrawLine( x+420, y+20, x+420+2, y+20 );
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dc.DrawLine( x+420, y+30, x+420+3, y+30 );
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dc.DrawLine( x+420, y+40, x+420+4, y+40 );
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dc.DrawLine( x+420, y+50, x+420+5, y+50 );
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dc.DrawLine( x+420, y+60, x+420+6, y+60 );
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dc.DrawLine( x+420, y+70, x+420+10, y+70 );
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dc.DrawLine( x+420, y+80, x+420+20, y+80 );
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dc.DrawLine( x+420, y+90, x+420+30, y+90 );
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y -= 40;
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dc.DrawCircle( x, y+100, 1);
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dc.DrawCircle( x, y+110, 2);
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dc.DrawCircle( x, y+120, 3);
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dc.DrawCircle( x, y+130, 4);
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dc.DrawCircle( x, y+140, 5);
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dc.DrawCircle( x, y+160, 7);
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dc.DrawCircle( x, y+180, 8);
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dc.DrawRectangle( x+50, y+100, 1, 1);
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dc.DrawRectangle( x+50, y+110, 2, 2);
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dc.DrawRectangle( x+50, y+120, 3, 3);
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dc.DrawRectangle( x+50, y+130, 4, 4);
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dc.DrawRectangle( x+50, y+140, 5, 5);
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dc.DrawRectangle( x+50, y+160, 10, 10);
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dc.DrawRectangle( x+50, y+180, 20, 20);
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dc.DrawRoundedRectangle( x+100, y+100, 1, 1, 1);
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dc.DrawRoundedRectangle( x+100, y+110, 2, 2, 1);
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dc.DrawRoundedRectangle( x+100, y+120, 3, 3, 1);
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dc.DrawRoundedRectangle( x+100, y+130, 4, 4, 1);
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dc.DrawRoundedRectangle( x+100, y+140, 5, 5, 1);
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dc.DrawRoundedRectangle( x+100, y+160, 10, 10, 1);
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dc.DrawRoundedRectangle( x+100, y+180, 20, 20, 1);
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dc.DrawRoundedRectangle( x+150, y+100, 1, 1, 2);
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dc.DrawRoundedRectangle( x+150, y+110, 2, 2, 2);
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dc.DrawRoundedRectangle( x+150, y+120, 3, 3, 2);
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dc.DrawRoundedRectangle( x+150, y+130, 4, 4, 2);
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dc.DrawRoundedRectangle( x+150, y+140, 5, 5, 2);
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dc.DrawRoundedRectangle( x+150, y+160, 10, 10, 2);
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dc.DrawRoundedRectangle( x+150, y+180, 20, 20, 2);
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dc.DrawRoundedRectangle( x+200, y+100, 1, 1, 3);
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dc.DrawRoundedRectangle( x+200, y+110, 2, 2, 3);
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dc.DrawRoundedRectangle( x+200, y+120, 3, 3, 3);
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dc.DrawRoundedRectangle( x+200, y+130, 4, 4, 3);
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dc.DrawRoundedRectangle( x+200, y+140, 5, 5, 3);
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dc.DrawRoundedRectangle( x+200, y+160, 10, 10, 3);
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dc.DrawRoundedRectangle( x+200, y+180, 20, 20, 3);
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dc.DrawRoundedRectangle( x+250, y+100, 1, 1, 5);
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dc.DrawRoundedRectangle( x+250, y+110, 2, 2, 5);
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dc.DrawRoundedRectangle( x+250, y+120, 3, 3, 5);
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dc.DrawRoundedRectangle( x+250, y+130, 4, 4, 5);
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dc.DrawRoundedRectangle( x+250, y+140, 5, 5, 5);
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dc.DrawRoundedRectangle( x+250, y+160, 10, 10, 5);
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dc.DrawRoundedRectangle( x+250, y+180, 20, 20, 5);
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dc.DrawRoundedRectangle( x+300, y+100, 1, 1, 10);
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dc.DrawRoundedRectangle( x+300, y+110, 2, 2, 10);
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dc.DrawRoundedRectangle( x+300, y+120, 3, 3, 10);
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dc.DrawRoundedRectangle( x+300, y+130, 4, 4, 10);
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dc.DrawRoundedRectangle( x+300, y+140, 5, 5, 10);
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dc.DrawRoundedRectangle( x+300, y+160, 10, 10, 10);
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dc.DrawRoundedRectangle( x+300, y+180, 20, 20, 10);
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}
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void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
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{
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wxPaintDC dc(this);
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PrepareDC(dc);
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m_owner->PrepareDC(dc);
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dc.SetBackgroundMode( m_owner->m_backgroundMode );
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if ( m_owner->m_backgroundBrush.Ok() )
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dc.SetBackground( m_owner->m_backgroundBrush );
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if ( m_owner->m_colourForeground.Ok() )
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dc.SetTextForeground( m_owner->m_colourForeground );
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if ( m_owner->m_colourBackground.Ok() )
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dc.SetTextBackground( m_owner->m_colourBackground );
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// mark the origin
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dc.DrawCircle(0, 0, 10);
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#ifndef __WXGTK__ // not implemented in wxGTK :-(
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dc.FloodFill(0, 0, wxColour(255, 0, 0));
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#endif // __WXGTK__
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dc.DrawText( "This is text", 110, 10 );
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dc.DrawIcon( wxICON(mondrian), 110, 40 );
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dc.SetBrush( *wxRED_BRUSH );
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int x = 20;
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int y = 80;
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int step = 200;
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dc.SetPen( wxPen( "black", 1, 0) );
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DoDrawTests( x, y, dc );
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y += step;
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dc.SetPen( wxPen( "black", 1, wxDOT) );
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DoDrawTests( x, y, dc );
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y += step;
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dc.SetPen( wxPen( "black", 1, wxSHORT_DASH) );
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DoDrawTests( x, y, dc );
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y += step;
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dc.SetPen( wxPen( "black", 1, wxLONG_DASH) );
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DoDrawTests( x, y, dc );
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y += step;
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dc.SetPen( wxPen( "black", 1, wxDOT_DASH) );
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DoDrawTests( x, y, dc );
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}
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// ----------------------------------------------------------------------------
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// MyFrame
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// ----------------------------------------------------------------------------
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|
|
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// the event tables connect the wxWindows events with the functions (event
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|
|
|
|
// handlers) which process them. It can be also done at run-time, but for the
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|
|
|
|
// simple menu events like this the static method is much simpler.
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|
|
|
|
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
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EVT_MOTION (MyFrame::OnMouseMove)
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EVT_MENU (Minimal_Quit, MyFrame::OnQuit)
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EVT_MENU (Minimal_About, MyFrame::OnAbout)
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EVT_MENU_RANGE(MenuOption_First, MenuOption_Last, MyFrame::OnOption)
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END_EVENT_TABLE()
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// frame constructor
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MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
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: wxFrame((wxFrame *)NULL, -1, title, pos, size)
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|
|
@@ -258,8 +444,10 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
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m_xAxisReversed =
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m_yAxisReversed = FALSE;
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m_backgroundMode = wxSOLID;
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}
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m_canvas = new MyCanvas( this );
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m_canvas->SetScrollbars( 10, 10, 100, 200 );
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}
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// event handlers
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|
|
|
@@ -372,71 +560,6 @@ void MyFrame::PrepareDC(wxDC& dc)
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|
|
dc.SetAxisOrientation( !m_xAxisReversed, m_yAxisReversed );
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}
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void MyFrame::OnPaint(wxPaintEvent &WXUNUSED(event) )
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{
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wxPaintDC dc(this);
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PrepareDC(dc);
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dc.SetBackgroundMode( m_backgroundMode );
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if ( m_backgroundBrush.Ok() )
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dc.SetBackground( m_backgroundBrush );
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if ( m_colourForeground.Ok() )
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dc.SetTextForeground( m_colourForeground );
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if ( m_colourBackground.Ok() )
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dc.SetTextBackground( m_colourBackground );
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// mark the origin
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dc.DrawCircle(0, 0, 10);
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#ifndef __WXGTK__ // not implemented in wxGTK :-(
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dc.FloodFill(0, 0, wxColour(255, 0, 0));
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#endif // __WXGTK__
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dc.DrawRectangle( 10, 10, 90, 90 );
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dc.DrawRoundedRectangle( 110, 10, 90, 90, 5 );
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dc.SetPen( *wxWHITE_PEN );
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dc.DrawLine( 10, 110, 100, 110 );
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dc.SetPen( *wxBLACK_PEN );
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dc.DrawLine( 100, 110, 100, 200 );
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dc.SetPen( *wxWHITE_PEN );
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dc.DrawLine( 100, 200, 10, 200 );
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dc.SetPen( *wxBLACK_PEN );
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dc.DrawLine( 10, 200, 10, 110 );
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wxPen white_butt( "white", 1, wxSOLID );
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white_butt.SetCap( wxCAP_BUTT );
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wxPen black_butt( "black", 1, wxSOLID );
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black_butt.SetCap( wxCAP_BUTT );
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dc.SetPen( white_butt );
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dc.DrawLine( 110, 110, 200, 110 );
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dc.SetPen( black_butt );
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dc.DrawLine( 200, 110, 200, 200 );
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dc.SetPen( white_butt );
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dc.DrawLine( 200, 200, 110, 200 );
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dc.SetPen( black_butt );
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dc.DrawLine( 110, 200, 110, 110 );
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wxPen white_miter( "white", 1, wxSOLID );
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white_miter.SetJoin( wxJOIN_MITER );
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wxPen black_miter( "black", 1, wxSOLID );
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black_miter.SetJoin( wxJOIN_MITER );
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dc.SetPen( white_miter );
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dc.DrawLine( 210, 110, 300, 110 );
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dc.SetPen( black_miter );
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dc.DrawLine( 300, 110, 300, 200 );
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dc.SetPen( white_miter );
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dc.DrawLine( 300, 200, 210, 200 );
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dc.SetPen( black_miter );
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dc.DrawLine( 210, 200, 210, 110 );
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dc.DrawText( "This is text\n(on multiple lines)", 110, 10 );
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dc.DrawIcon( wxICON(mondrian), 110, 40 );
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}
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void MyFrame::OnMouseMove(wxMouseEvent &event)
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|
{
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|
wxClientDC dc(this);
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