/////////////////////////////////////////////////////////////////////////////
// Name: drawing.cpp
-// Purpose: Minimal wxWindows sample
+// Purpose: shows and tests wxDC features
// Author: Robert Roebling
// Modified by:
// Created: 04/01/98
// headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
- #pragma implementation "minimal.cpp"
- #pragma interface "minimal.cpp"
+ #pragma implementation "drawing.cpp"
+ #pragma interface "drawing.cpp"
#endif
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wx.h"
#endif
+#include "wx/colordlg.h"
+
// ----------------------------------------------------------------------------
// ressources
// ----------------------------------------------------------------------------
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);
- int m_mapMode;
- double m_xUserScale;
- double m_yUserScale;
- int m_xLogicalOrigin;
- int m_yLogicalOrigin;
+ wxColour SelectColour();
+ void PrepareDC(wxDC& dc);
+
+ 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);
+
+protected:
+ MyFrame *m_owner;
+
+private:
+ DECLARE_EVENT_TABLE()
+};
+
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// menu items
Minimal_Quit = 1,
Minimal_About,
-
- MapMode_Text,
+
+ MenuOption_First,
+
+ MapMode_Text = MenuOption_First,
MapMode_Lometric,
MapMode_Twips,
MapMode_Points,
MapMode_Metric,
-
+
UserScale_StretchHoriz,
UserScale_ShrinkHoriz,
UserScale_StretchVertic,
UserScale_ShrinkVertic,
-
+ UserScale_Restore,
+
AxisMirror_Horiz,
AxisMirror_Vertic,
-
+
LogicalOrigin_MoveDown,
LogicalOrigin_MoveUp,
LogicalOrigin_MoveLeft,
LogicalOrigin_MoveRight,
-
+
+ Colour_TextForeground,
+ Colour_TextBackground,
+ Colour_Background,
+ Colour_BackgroundMode,
+
+ MenuOption_Last = Colour_BackgroundMode
};
// ----------------------------------------------------------------------------
// 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(MapMode_Text, MyFrame::OnOption)
- EVT_MENU(MapMode_Lometric, MyFrame::OnOption)
- EVT_MENU(MapMode_Twips, MyFrame::OnOption)
- EVT_MENU(MapMode_Points, MyFrame::OnOption)
- EVT_MENU(MapMode_Metric, MyFrame::OnOption)
-
- EVT_MENU(UserScale_StretchHoriz, MyFrame::OnOption)
- EVT_MENU(UserScale_ShrinkHoriz, MyFrame::OnOption)
- EVT_MENU(UserScale_StretchVertic, MyFrame::OnOption)
- EVT_MENU(UserScale_ShrinkVertic, MyFrame::OnOption)
-
- EVT_MENU(AxisMirror_Horiz, MyFrame::OnOption)
- EVT_MENU(AxisMirror_Vertic, MyFrame::OnOption)
-
- EVT_MENU(LogicalOrigin_MoveDown, MyFrame::OnOption)
- EVT_MENU(LogicalOrigin_MoveUp, MyFrame::OnOption)
- EVT_MENU(LogicalOrigin_MoveLeft, MyFrame::OnOption)
- EVT_MENU(LogicalOrigin_MoveRight, 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
bool MyApp::OnInit()
{
// Create the main application window
- MyFrame *frame = new MyFrame("Minimal wxWindows App",
- wxPoint(50, 50), wxSize(450, 340));
+ MyFrame *frame = new MyFrame("Drawing sample",
+ wxPoint(50, 50), wxSize(550, 340));
// Show it and tell the application that it's our main window
- // @@@ what does it do exactly, in fact? is it necessary here?
frame->Show(TRUE);
SetTopWindow(frame);
}
// ----------------------------------------------------------------------------
-// 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)
+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, 400, 190 );
+
+ dc.SetPen( wxPen( "black", width, wxSOLID) );
+ dc.DrawLine( x+20, y+20, 390, y+20 );
+ dc.SetPen( wxPen( "black", width, wxDOT) );
+ dc.DrawLine( x+20, y+30, 390, y+30 );
+ dc.SetPen( wxPen( "black", width, wxSHORT_DASH) );
+ dc.DrawLine( x+20, y+40, 390, y+40 );
+ dc.SetPen( wxPen( "black", width, wxLONG_DASH) );
+ dc.DrawLine( x+20, y+50, 390, y+50 );
+ dc.SetPen( wxPen( "black", width, wxDOT_DASH) );
+ dc.DrawLine( x+20, y+60, 390, y+60 );
+
+ dc.SetPen( wxPen( "black", width, wxBDIAGONAL_HATCH) );
+ dc.DrawLine( x+20, y+70, 390, y+70 );
+ dc.SetPen( wxPen( "black", width, wxCROSSDIAG_HATCH) );
+ dc.DrawLine( x+20, y+80, 390, y+80 );
+ dc.SetPen( wxPen( "black", width, wxFDIAGONAL_HATCH) );
+ dc.DrawLine( x+20, y+90, 390, y+90 );
+ dc.SetPen( wxPen( "black", width, wxCROSS_HATCH) );
+ dc.DrawLine( x+20, y+100, 390, y+100 );
+ dc.SetPen( wxPen( "black", width, wxHORIZONTAL_HATCH) );
+ dc.DrawLine( x+20, y+110, 390, y+110 );
+ dc.SetPen( wxPen( "black", width, wxVERTICAL_HATCH) );
+ dc.DrawLine( x+20, y+120, 390, y+120 );
+
+ wxPen ud( "black", width, wxUSER_DASH );
+ wxDash dash1[1];
+ dash1[0] = 0;
+ ud.SetDashes( 1, dash1 );
+ dc.DrawLine( x+20, y+140, 390, y+140 );
+ dash1[0] = 1;
+ ud.SetDashes( 1, dash1 );
+ dc.DrawLine( x+20, y+150, 390, y+150 );
+ dash1[0] = 2;
+ ud.SetDashes( 1, dash1 );
+ dc.DrawLine( x+20, y+160, 390, y+160 );
+ dash1[0] = 0xFF;
+ ud.SetDashes( 1, dash1 );
+ dc.DrawLine( x+20, y+170, 390, 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 //
+
+ dc.DrawText( "This is text", 110, 10 );
+
+ dc.SetFont( wxFont( 18, wxSWISS, 0, 0 ) );
+
+ 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 );
+ wxString text;
+ 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 );
+
+}
+
+// ----------------------------------------------------------------------------
+// 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_MOTION (MyFrame::OnMouseMove)
+ 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)
menuFile->Append(Minimal_About, "&About...\tCtrl-A", "Show about dialog");
menuFile->AppendSeparator();
menuFile->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program");
-
+
wxMenu *menuMapMode = new wxMenu;
menuMapMode->Append( MapMode_Text, "&TEXT map mode" );
menuMapMode->Append( MapMode_Lometric, "&LOMETRIC map mode" );
menuMapMode->Append( MapMode_Twips, "T&WIPS map mode" );
menuMapMode->Append( MapMode_Points, "&POINTS map mode" );
menuMapMode->Append( MapMode_Metric, "&METRIC map mode" );
-
+
wxMenu *menuUserScale = new wxMenu;
- menuUserScale->Append( UserScale_StretchHoriz, "Stretch horizontally\tAlt-P" );
- menuUserScale->Append( UserScale_ShrinkHoriz, "Shrink horizontally\tAlt-M" );
- menuUserScale->Append( UserScale_StretchVertic, "Stretch vertically\tCtrl-P" );
- menuUserScale->Append( UserScale_ShrinkVertic, "Shrink vertically\tCtrl-M" );
-
+ menuUserScale->Append( UserScale_StretchHoriz, "Stretch horizontally\tCtrl-H" );
+ menuUserScale->Append( UserScale_ShrinkHoriz, "Shrink horizontally\tCtrl-G" );
+ menuUserScale->Append( UserScale_StretchVertic, "Stretch vertically\tCtrl-V" );
+ menuUserScale->Append( UserScale_ShrinkVertic, "Shrink vertically\tCtrl-W" );
+ menuUserScale->AppendSeparator();
+ menuUserScale->Append( UserScale_Restore, "Restore to normal\tCtrl-0" );
+
wxMenu *menuAxis = new wxMenu;
- menuAxis->Append( AxisMirror_Horiz, "Mirror horizontally" );
- menuAxis->Append( AxisMirror_Vertic, "Mirror vertically" );
-
+ menuAxis->Append( AxisMirror_Horiz, "Mirror horizontally\tCtrl-M", "", TRUE );
+ menuAxis->Append( AxisMirror_Vertic, "Mirror vertically\tCtrl-N", "", TRUE );
+
wxMenu *menuLogical = new wxMenu;
menuLogical->Append( LogicalOrigin_MoveDown, "Move &down\tCtrl-D" );
menuLogical->Append( LogicalOrigin_MoveUp, "Move &up\tCtrl-U" );
menuLogical->Append( LogicalOrigin_MoveLeft, "Move &right\tCtrl-L" );
menuLogical->Append( LogicalOrigin_MoveRight, "Move &left\tCtrl-R" );
+ wxMenu *menuColour = new wxMenu;
+ menuColour->Append( Colour_TextForeground, "Text foreground..." );
+ menuColour->Append( Colour_TextBackground, "Text background..." );
+ menuColour->Append( Colour_Background, "Background colour..." );
+ menuColour->Append( Colour_BackgroundMode, "Opaque/transparent\tCtrl-B", "", TRUE );
+
// now append the freshly created menu to the menu bar...
wxMenuBar *menuBar = new wxMenuBar;
menuBar->Append(menuFile, "&File");
menuBar->Append(menuUserScale, "&UserScale");
menuBar->Append(menuAxis, "&Axis");
menuBar->Append(menuLogical, "&LogicalOrigin");
+ menuBar->Append(menuColour, "&Colours");
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
// create a status bar just for fun (by default with 1 pane only)
CreateStatusBar(2);
SetStatusText("Welcome to wxWindows!");
-
+
m_mapMode = wxMM_TEXT;
m_xUserScale = 1.0;
m_yUserScale = 1.0;
m_xLogicalOrigin = 0;
m_yLogicalOrigin = 0;
-}
+ m_xAxisReversed =
+ m_yAxisReversed = FALSE;
+ m_backgroundMode = wxSOLID;
+ m_canvas = new MyCanvas( this );
+ m_canvas->SetScrollbars( 10, 10, 100, 200 );
+}
// event handlers
{
wxString msg;
msg.Printf( _T("This is the about dialog of the drawing sample.\n")
- _T("Welcome to %s")
-#ifdef wxBETA_NUMBER
- _T(" (beta %d)!")
-#endif // wxBETA_NUMBER
- , wxVERSION_STRING
-#ifdef wxBETA_NUMBER
- , wxBETA_NUMBER
-#endif // wxBETA_NUMBER
+ _T("Copyright (c) Robert Roebling 1999")
);
wxMessageBox(msg, "About Drawing", wxOK | wxICON_INFORMATION, this);
switch (event.GetInt())
{
case MapMode_Text:
- m_mapMode = wxMM_LOMETRIC;
- break;
+ m_mapMode = wxMM_TEXT;
+ break;
case MapMode_Lometric:
m_mapMode = wxMM_LOMETRIC;
- break;
- case MapMode_Twips:
+ break;
+ case MapMode_Twips:
m_mapMode = wxMM_TWIPS;
- break;
- case MapMode_Points:
+ break;
+ case MapMode_Points:
m_mapMode = wxMM_POINTS;
- break;
- case MapMode_Metric:
+ break;
+ case MapMode_Metric:
m_mapMode = wxMM_METRIC;
- break;
+ break;
+
+ case LogicalOrigin_MoveDown:
+ m_yLogicalOrigin += 10;
+ break;
+ case LogicalOrigin_MoveUp:
+ m_yLogicalOrigin -= 10;
+ break;
+ case LogicalOrigin_MoveLeft:
+ m_xLogicalOrigin += 10;
+ break;
+ case LogicalOrigin_MoveRight:
+ m_xLogicalOrigin -= 10;
+ break;
+
+ case UserScale_StretchHoriz:
+ m_xUserScale *= 1.10;
+ break;
+ case UserScale_ShrinkHoriz:
+ m_xUserScale /= 1.10;
+ break;
+ case UserScale_StretchVertic:
+ m_yUserScale *= 1.10;
+ break;
+ case UserScale_ShrinkVertic:
+ m_yUserScale /= 1.10;
+ break;
+ case UserScale_Restore:
+ m_xUserScale =
+ m_yUserScale = 1.0;
+ break;
+
+ case AxisMirror_Vertic:
+ m_yAxisReversed = !m_yAxisReversed;
+ break;
+ case AxisMirror_Horiz:
+ m_xAxisReversed = !m_xAxisReversed;
+ break;
+
+ case Colour_TextForeground:
+ m_colourForeground = SelectColour();
+ break;
+ case Colour_TextBackground:
+ m_colourBackground = SelectColour();
+ break;
+ case Colour_Background:
+ {
+ wxColour col = SelectColour();
+ if ( col.Ok() )
+ {
+ m_backgroundBrush.SetColour(col);
+ }
+ }
+ break;
+ case Colour_BackgroundMode:
+ m_backgroundMode = m_backgroundMode == wxSOLID ? wxTRANSPARENT
+ : wxSOLID;
+ break;
+
+ default:
+ // skip Refresh()
+ return;
}
- Refresh();
+
+ m_canvas->Refresh();
}
-void MyFrame::OnPaint(wxPaintEvent &WXUNUSED(event) )
+void MyFrame::PrepareDC(wxDC& dc)
{
- wxPaintDC dc(this);
- dc.SetMapMode( m_mapMode );
- dc.SetUserScale( m_xUserScale, m_yUserScale );
- dc.SetLogicalOrigin( m_xLogicalOrigin, m_yLogicalOrigin );
-
- dc.DrawRectangle( 10, 10, 90, 90 );
-
- dc.DrawRoundedRectangle( 10, 110, 90, 90, 5 );
+ dc.SetMapMode( m_mapMode );
+ dc.SetUserScale( m_xUserScale, m_yUserScale );
+ dc.SetLogicalOrigin( m_xLogicalOrigin, m_yLogicalOrigin );
+ dc.SetAxisOrientation( !m_xAxisReversed, m_yAxisReversed );
}
void MyFrame::OnMouseMove(wxMouseEvent &event)
{
- wxClientDC dc(this);
- dc.SetMapMode( m_mapMode );
- dc.SetUserScale( m_xUserScale, m_yUserScale );
- dc.SetLogicalOrigin( m_xLogicalOrigin, m_yLogicalOrigin );
-
- 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 );
+ 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;
+ wxColourData data;
+ wxColourDialog dialog(this, &data);
+
+ if ( dialog.ShowModal() == wxID_OK )
+ {
+ col = dialog.GetColourData().GetColour();
+ }
+
+ return col;
}
projects / wxWidgets.git / blobdiff