X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ed43910deb8e8d63f6d9a2dedc6da516c6110994..3766781218689ca38a07fad5c73735317797c572:/samples/drawing/drawing.cpp diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp index b0d1b3d91a..1d6f9e8718 100644 --- a/samples/drawing/drawing.cpp +++ b/samples/drawing/drawing.cpp @@ -1,6 +1,6 @@ ///////////////////////////////////////////////////////////////////////////// // Name: drawing.cpp -// Purpose: Minimal wxWindows sample +// Purpose: shows and tests wxDC features // Author: Robert Roebling // Modified by: // Created: 04/01/98 @@ -17,8 +17,8 @@ // 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". @@ -34,6 +34,8 @@ #include "wx/wx.h" #endif +#include "wx/colordlg.h" + // ---------------------------------------------------------------------------- // ressources // ---------------------------------------------------------------------------- @@ -59,6 +61,8 @@ public: virtual bool OnInit(); }; +class MyCanvas; + // Define a new frame type: this is going to be our main frame class MyFrame : public wxFrame { @@ -69,21 +73,46 @@ public: // 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 // ---------------------------------------------------------------------------- @@ -94,62 +123,41 @@ enum // 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 @@ -171,10 +179,9 @@ bool MyApp::OnInit() { // 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 - // @@@ what does it do exactly, in fact? is it necessary here? frame->Show(TRUE); SetTopWindow(frame); @@ -185,9 +192,135 @@ bool MyApp::OnInit() } // ---------------------------------------------------------------------------- -// 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) @@ -199,30 +332,38 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& 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\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"); @@ -230,6 +371,7 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) 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); @@ -237,14 +379,19 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) // 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 @@ -269,75 +416,117 @@ void MyFrame::OnOption(wxCommandEvent &event) 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; - 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; + 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.DrawText( "This is text.", 110, 10 ); - - dc.DrawIcon( wxICON(mondrian), 110, 40 ); + 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; }