#include "wx/overlay.h"
#include "wx/graphics.h"
#include "wx/filename.h"
+#include "wx/metafile.h"
#define TEST_CAIRO_EVERYWHERE 0
// ----------------------------------------------------------------------------
// the application icon
-#if !defined(__WXMSW__) && !defined(__WXPM__)
+#ifndef wxHAS_IMAGES_IN_RESOURCES
#include "../sample.xpm"
#endif
#if wxUSE_GRAPHICS_CONTEXT
void OnGraphicContext(wxCommandEvent& event);
#endif
+ void OnCopy(wxCommandEvent& event);
+ void OnSave(wxCommandEvent& event);
void OnShow(wxCommandEvent &event);
void OnOption(wxCommandEvent &event);
#if wxUSE_GRAPHICS_CONTEXT
void UseGraphicContext(bool use) { m_useContext = use; Refresh(); }
#endif
+ void Draw(wxDC& dc);
protected:
enum DrawMode
#if wxUSE_GRAPHICS_CONTEXT
File_GraphicContext,
#endif
+ File_Copy,
+ File_Save,
MenuOption_First,
MyFrame *frame = new MyFrame(wxT("Drawing sample"),
wxDefaultPosition, wxSize(550, 840));
- // Show it and tell the application that it's our main window
+ // Show it
frame->Show(true);
- SetTopWindow(frame);
if ( !LoadImages() )
{
// still continue, the sample can be used without images too if they're
// missing for whatever reason
}
+#if wxUSE_LIBPNG
+ wxImage::AddHandler( new wxPNGHandler );
+#endif
return true;
}
y += HEIGHT;
dc.SetBrush(wxBrush(*wxRED, wxCROSSDIAG_HATCH));
dc.DrawRectangle(x, y, WIDTH, HEIGHT);
- dc.DrawText(wxT("Hatched red"), x + 10, y + 10);
+ dc.DrawText(wxT("Diagonally hatched red"), x + 10, y + 10);
+
+ y += HEIGHT;
+ dc.SetBrush(wxBrush(*wxBLUE, wxCROSS_HATCH));
+ dc.DrawRectangle(x, y, WIDTH, HEIGHT);
+ dc.DrawText(wxT("Cross hatched blue"), x + 10, y + 10);
+
+ y += HEIGHT;
+ dc.SetBrush(wxBrush(*wxCYAN, wxVERTICAL_HATCH));
+ dc.DrawRectangle(x, y, WIDTH, HEIGHT);
+ dc.DrawText(wxT("Vertically hatched cyan"), x + 10, y + 10);
+
+ y += HEIGHT;
+ dc.SetBrush(wxBrush(*wxBLACK, wxHORIZONTAL_HATCH));
+ dc.DrawRectangle(x, y, WIDTH, HEIGHT);
+ dc.DrawText(wxT("Horizontally hatched black"), x + 10, y + 10);
y += HEIGHT;
dc.SetBrush(wxBrush(*gs_bmpMask));
void MyCanvas::DrawDefault(wxDC& dc)
{
- // mark the origin
- dc.DrawCircle(0, 0, 10);
-
-#if !defined(wxMAC_USE_CORE_GRAPHICS) || !wxMAC_USE_CORE_GRAPHICS
- // GetPixel and FloodFill not supported by Mac OS X CoreGraphics
- // (FloodFill uses Blit from a non-wxMemoryDC)
- //flood fill using brush, starting at 1,1 and replacing whatever colour we find there
- dc.SetBrush(wxBrush(wxColour(128,128,0), wxSOLID));
-
- wxColour tmpColour ;
- dc.GetPixel(1,1, &tmpColour);
- dc.FloodFill(1,1, tmpColour, wxFLOOD_SURFACE);
-#endif
+ // Draw circle centered at the origin, then flood fill it with a different
+ // color. Done with a wxMemoryDC because Blit (used by generic
+ // wxDoFloodFill) from a window that is being painted gives unpredictable
+ // results on wxGTK
+ {
+ wxImage img(21, 21, false);
+ img.Clear(1);
+ wxBitmap bmp(img);
+ {
+ wxMemoryDC mdc(bmp);
+ mdc.SetBrush(dc.GetBrush());
+ mdc.SetPen(dc.GetPen());
+ mdc.DrawCircle(10, 10, 10);
+ wxColour c;
+ if (mdc.GetPixel(11, 11, &c))
+ {
+ mdc.SetBrush(wxColour(128, 128, 0));
+ mdc.FloodFill(11, 11, c, wxFLOOD_SURFACE);
+ }
+ }
+ bmp.SetMask(new wxMask(bmp, wxColour(1, 1, 1)));
+ dc.DrawBitmap(bmp, -10, -10, true);
+ }
dc.DrawCheckMark(5, 80, 15, 15);
dc.DrawCheckMark(25, 80, 30, 30);
// rectangle above)
//dc.SetBrush( *wxTRANSPARENT_BRUSH );
- if (m_smile_bmp.Ok())
+ if (m_smile_bmp.IsOk())
dc.DrawBitmap(m_smile_bmp, x + rectSize - 20, rectSize - 10, true);
dc.SetBrush( *wxBLACK_BRUSH );
wxCoord height;
wxCoord descent;
dc.GetTextExtent( wxT("This is Swiss 18pt text."), &length, &height, &descent );
- text.Printf( wxT("Dimensions are length %ld, height %ld, descent %ld"), length, height, descent );
+ text.Printf( wxT("Dimensions are length %d, height %d, descent %d"), length, height, descent );
dc.DrawText( text, 110, 80 );
text.Printf( wxT("CharHeight() returns: %d"), dc.GetCharHeight() );
y += height;
dc.DrawRectangle( 110, y, 100, height );
dc.DrawText( wxT("Another visible text"), 110, y );
+
+ y += height;
+ dc.DrawText("And\nmore\ntext on\nmultiple\nlines", 110, y);
}
static const struct
dc.SetBrush( *wxGREY_BRUSH );
dc.DrawRectangle( x, y, 310, 310 );
- if (m_smile_bmp.Ok())
+ if (m_smile_bmp.IsOk())
{
dc.DrawBitmap( m_smile_bmp, x + 150, y + 150, true );
dc.DrawBitmap( m_smile_bmp, x + 130, y + 10, true );
}
}
-#if TEST_CAIRO_EVERYWHERE
-extern wxGraphicsRenderer* gCairoRenderer;
-#endif
-
void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
{
wxPaintDC pdc(this);
+ Draw(pdc);
+}
+void MyCanvas::Draw(wxDC& pdc)
+{
#if wxUSE_GRAPHICS_CONTEXT
-#if TEST_CAIRO_EVERYWHERE
wxGCDC gdc;
- gdc.SetGraphicsContext( gCairoRenderer->CreateContext( pdc ) );
+ wxGraphicsRenderer* const renderer = wxGraphicsRenderer::
+#if TEST_CAIRO_EVERYWHERE
+ GetCairoRenderer()
#else
- wxGCDC gdc( pdc ) ;
+ GetDefaultRenderer()
+#endif
+ ;
+
+ wxGraphicsContext* context;
+ if ( wxPaintDC *paintdc = wxDynamicCast(&pdc, wxPaintDC) )
+ {
+ context = renderer->CreateContext(*paintdc);
+ }
+ else if ( wxMemoryDC *memdc = wxDynamicCast(&pdc, wxMemoryDC) )
+ {
+ context = renderer->CreateContext(*memdc);
+ }
+#if wxUSE_METAFILE && defined(wxMETAFILE_IS_ENH)
+ else if ( wxMetafileDC *metadc = wxDynamicCast(&pdc, wxMetafileDC) )
+ {
+ context = renderer->CreateContext(*metadc);
+ }
#endif
+ else
+ {
+ wxFAIL_MSG( "Unknown wxDC kind" );
+ return;
+ }
+
+ gdc.SetGraphicsContext(context);
+
wxDC &dc = m_useContext ? (wxDC&) gdc : (wxDC&) pdc ;
#else
wxDC &dc = pdc ;
m_owner->PrepareDC(dc);
dc.SetBackgroundMode( m_owner->m_backgroundMode );
- if ( m_owner->m_backgroundBrush.Ok() )
+ if ( m_owner->m_backgroundBrush.IsOk() )
dc.SetBackground( m_owner->m_backgroundBrush );
- if ( m_owner->m_colourForeground.Ok() )
+ if ( m_owner->m_colourForeground.IsOk() )
dc.SetTextForeground( m_owner->m_colourForeground );
- if ( m_owner->m_colourBackground.Ok() )
+ if ( m_owner->m_colourBackground.IsOk() )
dc.SetTextBackground( m_owner->m_colourBackground );
if ( m_owner->m_textureBackground) {
- if ( ! m_owner->m_backgroundBrush.Ok() ) {
+ if ( ! m_owner->m_backgroundBrush.IsOk() ) {
wxColour clr(0,128,0);
wxBrush b(clr, wxSOLID);
dc.SetBackground(b);
m_overlay.Reset();
m_rubberBand = false;
- int x,y,xx,yy ;
- event.GetPosition(&x,&y);
- CalcUnscrolledPosition( x, y, &xx, &yy );
-
- wxString str;
- str.Printf( wxT("Rectangle selection from %d,%d to %d,%d"),
- m_anchorpoint.x, m_anchorpoint.y , (int)xx, (int)yy );
- wxMessageBox( str , wxT("Rubber-Banding") );
+ wxPoint endpoint = CalcUnscrolledPosition(event.GetPosition());
+ // Don't pop up the message box if nothing was actually selected.
+ if ( endpoint != m_anchorpoint )
+ {
+ wxLogMessage("Selected rectangle from (%d, %d) to (%d, %d)",
+ m_anchorpoint.x, m_anchorpoint.y,
+ endpoint.x, endpoint.y);
+ }
}
}
#if wxUSE_GRAPHICS_CONTEXT
EVT_MENU (File_GraphicContext, MyFrame::OnGraphicContext)
#endif
+ EVT_MENU (File_Copy, MyFrame::OnCopy)
+ EVT_MENU (File_Save, MyFrame::OnSave)
EVT_MENU_RANGE(MenuShow_First, MenuShow_Last, MyFrame::OnShow)
#if wxUSE_GRAPHICS_CONTEXT
menuFile->Append(File_ShowAlpha, wxT("&Alpha screen\tF10"));
#endif
- menuFile->Append(File_ShowSplines, wxT("&Splines screen\tF11"));
+ menuFile->Append(File_ShowSplines, wxT("Spl&ines screen\tF11"));
menuFile->Append(File_ShowGradients, wxT("&Gradients screen\tF12"));
#if wxUSE_GRAPHICS_CONTEXT
menuFile->Append(File_ShowGraphics, wxT("&Graphics screen"));
menuFile->AppendCheckItem(File_GraphicContext, wxT("&Use GraphicContext\tCtrl-Y"), wxT("Use GraphicContext"));
#endif
menuFile->AppendSeparator();
- menuFile->Append(File_About, wxT("&About...\tCtrl-A"), wxT("Show about dialog"));
+#if wxUSE_METAFILE && defined(wxMETAFILE_IS_ENH)
+ menuFile->Append(File_Copy, wxT("Copy to clipboard"));
+#endif
+ menuFile->Append(File_Save, wxT("&Save...\tCtrl-S"), wxT("Save drawing to file"));
+ menuFile->AppendSeparator();
+ menuFile->Append(File_About, wxT("&About\tCtrl-A"), wxT("Show about dialog"));
menuFile->AppendSeparator();
menuFile->Append(File_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));
}
#endif
+void MyFrame::OnCopy(wxCommandEvent& WXUNUSED(event))
+{
+#if wxUSE_METAFILE && defined(wxMETAFILE_IS_ENH)
+ wxMetafileDC dc;
+ if (!dc.IsOk())
+ return;
+ m_canvas->Draw(dc);
+ wxMetafile *mf = dc.Close();
+ if (!mf)
+ return;
+ mf->SetClipboard();
+ delete mf;
+#endif
+}
+
+void MyFrame::OnSave(wxCommandEvent& WXUNUSED(event))
+{
+ wxFileDialog dlg(this, wxT("Save as bitmap"), wxT(""), wxT(""),
+#if wxUSE_LIBPNG
+ wxT("PNG image (*.png)|*.png;*.PNG|")
+#endif
+ wxT("Bitmap image (*.bmp)|*.bmp;*.BMP"),
+ wxFD_SAVE | wxFD_OVERWRITE_PROMPT);
+ if (dlg.ShowModal() == wxID_OK)
+ {
+ wxBitmap bmp(500, 800);
+ wxMemoryDC mdc(bmp);
+ m_canvas->Draw(mdc);
+ bmp.ConvertToImage().SaveFile(dlg.GetPath());
+ }
+}
+
void MyFrame::OnShow(wxCommandEvent& event)
{
m_canvas->ToShow(event.GetId());
case Colour_Background:
{
wxColour col = SelectColour();
- if ( col.Ok() )
+ if ( col.IsOk() )
{
m_backgroundBrush.SetColour(col);
}
projects / wxWidgets.git / blobdiff