virtual bool OnInit();
};
+class MyCanvas;
+
// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
// event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
- void OnPaint(wxPaintEvent &event);
void OnOption(wxCommandEvent &event);
- void OnMouseMove(wxMouseEvent &event);
wxColour SelectColour();
void PrepareDC(wxDC& dc);
-protected:
- int m_backgroundMode;
- int m_mapMode;
- double m_xUserScale;
- double m_yUserScale;
- int m_xLogicalOrigin;
- int m_yLogicalOrigin;
- bool m_xAxisReversed,
- m_yAxisReversed;
- wxColour m_colourForeground, // these are _text_ colours
- m_colourBackground;
- wxBrush m_backgroundBrush;
+ int m_backgroundMode;
+ int m_mapMode;
+ double m_xUserScale;
+ double m_yUserScale;
+ int m_xLogicalOrigin;
+ int m_yLogicalOrigin;
+ bool m_xAxisReversed,
+ m_yAxisReversed;
+ wxColour m_colourForeground, // these are _text_ colours
+ m_colourBackground;
+ wxBrush m_backgroundBrush;
+ MyCanvas *m_canvas;
private:
// any class wishing to process wxWindows events must use this macro
DECLARE_EVENT_TABLE()
};
+// define a scrollable canvas for drawing onto
+class MyCanvas: public wxScrolledWindow
+{
+public:
+ MyCanvas( MyFrame *parent );
+
+ void DrawTestLines( int x, int y, int width, wxDC &dc );
+ void OnPaint(wxPaintEvent &event);
+ void OnMouseMove(wxMouseEvent &event);
+
+protected:
+ MyFrame *m_owner;
+
+private:
+ DECLARE_EVENT_TABLE()
+};
+
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// event tables and other macros for wxWindows
// ----------------------------------------------------------------------------
-// the event tables connect the wxWindows events with the functions (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_MOTION (MyFrame::OnMouseMove)
- EVT_PAINT (MyFrame::OnPaint)
-
- EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
- EVT_MENU(Minimal_About, MyFrame::OnAbout)
-
- EVT_MENU_RANGE(MenuOption_First, MenuOption_Last, MyFrame::OnOption)
-END_EVENT_TABLE()
// Create a new application object: this macro will allow wxWindows to create
// the application object during program execution (it's better than using a
{
// Create the main application window
MyFrame *frame = new MyFrame("Drawing sample",
- wxPoint(50, 50), wxSize(450, 340));
+ wxPoint(50, 50), wxSize(550, 340));
// Show it and tell the application that it's our main window
frame->Show(TRUE);
}
// ----------------------------------------------------------------------------
-// main frame
+// MyCanvas
// ----------------------------------------------------------------------------
+// the event tables connect the wxWindows events with the functions (event
+// handlers) which process them.
+BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
+ EVT_PAINT (MyCanvas::OnPaint)
+ EVT_MOTION (MyCanvas::OnMouseMove)
+END_EVENT_TABLE()
+
+MyCanvas::MyCanvas( MyFrame *parent )
+ : wxScrolledWindow( parent )
+{
+ m_owner = parent;
+}
+
+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, 100, 190 );
+
+ dc.SetPen( wxPen( "black", width, wxSOLID) );
+ dc.DrawLine( x+20, y+20, 100, y+20 );
+ dc.SetPen( wxPen( "black", width, wxDOT) );
+ dc.DrawLine( x+20, y+30, 100, y+30 );
+ dc.SetPen( wxPen( "black", width, wxSHORT_DASH) );
+ dc.DrawLine( x+20, y+40, 100, y+40 );
+ dc.SetPen( wxPen( "black", width, wxLONG_DASH) );
+ dc.DrawLine( x+20, y+50, 100, y+50 );
+ dc.SetPen( wxPen( "black", width, wxDOT_DASH) );
+ dc.DrawLine( x+20, y+60, 100, y+60 );
+
+ dc.SetPen( wxPen( "black", width, wxBDIAGONAL_HATCH) );
+ dc.DrawLine( x+20, y+70, 100, y+70 );
+ dc.SetPen( wxPen( "black", width, wxCROSSDIAG_HATCH) );
+ dc.DrawLine( x+20, y+80, 100, y+80 );
+ dc.SetPen( wxPen( "black", width, wxFDIAGONAL_HATCH) );
+ dc.DrawLine( x+20, y+90, 100, y+90 );
+ dc.SetPen( wxPen( "black", width, wxCROSS_HATCH) );
+ dc.DrawLine( x+20, y+100, 100, y+100 );
+ dc.SetPen( wxPen( "black", width, wxHORIZONTAL_HATCH) );
+ dc.DrawLine( x+20, y+110, 100, y+110 );
+ dc.SetPen( wxPen( "black", width, wxVERTICAL_HATCH) );
+ dc.DrawLine( x+20, y+120, 100, y+120 );
+
+ wxPen ud( "black", width, wxUSER_DASH );
+ wxDash dash1[1];
+ dash1[0] = 0;
+ ud.SetDashes( 1, dash1 );
+ dc.DrawLine( x+20, y+140, 100, y+140 );
+ dash1[0] = 1;
+ ud.SetDashes( 1, dash1 );
+ dc.DrawLine( x+20, y+150, 100, y+150 );
+ dash1[0] = 2;
+ ud.SetDashes( 1, dash1 );
+ dc.DrawLine( x+20, y+160, 100, y+160 );
+ dash1[0] = 0xFF;
+ ud.SetDashes( 1, dash1 );
+ dc.DrawLine( x+20, y+170, 100, y+170 );
+
+}
+
+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 );
+
+ // mark the origin
+ dc.DrawCircle(0, 0, 10);
+#if !(defined __WXGTK__) && !(defined __WXMOTIF__)
+ // not implemented in wxGTK or wxMOTIF :-(
+ dc.FloodFill(0, 0, wxColour(255, 0, 0));
+#endif //
+
+ // 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", 60, 30, -45 );
+
+ dc.SetFont( *wxNORMAL_FONT );
+
+ wxString text;
+ dc. SetBackgroundMode(wxTRANSPARENT);
+
+ for ( int n = -180; n < 180; n += 30 )
+ {
+ text.Printf(" %d rotated text", n);
+ dc.DrawRotatedText(text , 400, 400, n);
+ }
+
+ dc.SetFont( wxFont( 18, wxSWISS, wxNORMAL, wxNORMAL ) );
+
+ dc.DrawText( "This is Swiss 18pt text.", 110, 40 );
+
+ long length;
+ long height;
+ long descent;
+ dc.GetTextExtent( "This is Swiss 18pt text.", &length, &height, &descent );
+ 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.DrawIcon( wxICON(mondrian), 310, 40 );
+
+ DrawTestLines( 0, 200, 0, dc );
+
+ DrawTestLines( 0, 400, 1, dc );
+
+ DrawTestLines( 0, 600, 2, dc );
+
+ DrawTestLines( 0, 800, 6, dc );
+
+}
+
+void MyCanvas::OnMouseMove(wxMouseEvent &event)
+{
+ wxClientDC dc(this);
+ PrepareDC(dc);
+ m_owner->PrepareDC(dc);
+
+ wxPoint pos = event.GetPosition();
+ long x = dc.DeviceToLogicalX( pos.x );
+ long y = dc.DeviceToLogicalY( pos.y );
+ wxString str;
+ str.Printf( "Current mouse position: %d,%d", (int)x, (int)y );
+ m_owner->SetStatusText( str );
+}
+
+// ----------------------------------------------------------------------------
+// MyFrame
+// ----------------------------------------------------------------------------
+
+// the event tables connect the wxWindows events with the functions (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_RANGE(MenuOption_First, MenuOption_Last, MyFrame::OnOption)
+END_EVENT_TABLE()
+
// frame constructor
MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
: wxFrame((wxFrame *)NULL, -1, title, pos, size)
m_xAxisReversed =
m_yAxisReversed = FALSE;
m_backgroundMode = wxSOLID;
-}
+ m_canvas = new MyCanvas( this );
+ m_canvas->SetScrollbars( 10, 10, 100, 200 );
+}
// event handlers
return;
}
- Refresh();
+ m_canvas->Refresh();
}
void MyFrame::PrepareDC(wxDC& dc)
dc.SetAxisOrientation( !m_xAxisReversed, m_yAxisReversed );
}
-void MyFrame::OnPaint(wxPaintEvent &WXUNUSED(event) )
-{
- wxPaintDC dc(this);
- PrepareDC(dc);
-
- dc.SetBackgroundMode( m_backgroundMode );
- if ( m_backgroundBrush.Ok() )
- dc.SetBackground( m_backgroundBrush );
- if ( m_colourForeground.Ok() )
- dc.SetTextForeground( m_colourForeground );
- if ( m_colourBackground.Ok() )
- dc.SetTextBackground( m_colourBackground );
-
- // mark the origin
- dc.DrawCircle(0, 0, 10);
-#ifndef __WXGTK__ // not implemented in wxGTK :-(
- dc.FloodFill(0, 0, wxColour(255, 0, 0));
-#endif // __WXGTK__
-
- dc.DrawRectangle( 10, 10, 90, 90 );
- dc.DrawRoundedRectangle( 10, 110, 90, 90, 5 );
-
- dc.DrawText( "This is text\n(on multiple lines)", 110, 10 );
-
- dc.DrawIcon( wxICON(mondrian), 110, 40 );
-}
-
-void MyFrame::OnMouseMove(wxMouseEvent &event)
-{
- wxClientDC dc(this);
- PrepareDC(dc);
-
- wxPoint pos = event.GetPosition();
- long x = dc.DeviceToLogicalX( pos.x );
- long y = dc.DeviceToLogicalY( pos.y );
- wxString str;
- str.Printf( "Current mouse position: %d,%d", (int)x, (int)y );
- SetStatusText( str );
-}
-
wxColour MyFrame::SelectColour()
{
wxColour col;
projects / wxWidgets.git / blobdiff