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Add option to save as PostScript in drawing sample

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This commit is contained in:
Artur Wieczorek
2017-03-03 21:07:58 +01:00
parent 3d4850bdf3
commit 8aee0244b0
1 changed files with 59 additions and 6 deletions
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65
samples/drawing/drawing.cpp
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@@ -42,6 +42,9 @@
#if wxUSE_SVG
#include "wx/dcsvg.h"
#endif
#if wxUSE_POSTSCRIPT
#include "wx/dcps.h"
#endif
// ----------------------------------------------------------------------------
// resources
@@ -2224,22 +2227,28 @@ void MyFrame::OnCopy(wxCommandEvent& WXUNUSED(event))
void MyFrame::OnSave(wxCommandEvent& WXUNUSED(event))
{
wxFileDialog dlg(this, wxT("Save as bitmap"), wxT(""), wxT(""),
wxString wildCard = wxS("Bitmap image (*.bmp)|*.bmp;*.BMP");
#if wxUSE_LIBPNG
wxT("PNG image (*.png)|*.png;*.PNG|")
wildCard.Append(wxS("|PNG image (*.png)|*.png;*.PNG"));
#endif
#if wxUSE_SVG
wxT("SVG image (*.svg)|*.svg;*.SVG|")
wildCard.Append(wxS("|SVG image (*.svg)|*.svg;*.SVG"));
#endif
wxT("Bitmap image (*.bmp)|*.bmp;*.BMP"),
#if wxUSE_POSTSCRIPT
wildCard.Append(wxS("|PostScript file (*.ps)|*.ps;*.PS"));
#endif
wxFileDialog dlg(this, wxT("Save as bitmap"), wxEmptyString, wxEmptyString,
wildCard,
wxFD_SAVE | wxFD_OVERWRITE_PROMPT);
if (dlg.ShowModal() == wxID_OK)
{
int width, height;
m_canvas->GetDrawingSize(&width, &height);
wxFileName fn(dlg.GetPath());
wxString ext = fn.GetExt().Lower();
#if wxUSE_SVG
wxString ext = dlg.GetPath().AfterLast('.').Lower();
if (ext.Lower() == wxT("svg"))
if (ext == wxT("svg"))
{
// Graphics screen can only be drawn using GraphicsContext
if (m_canvas->GetPage() == File_ShowGraphics) {
@@ -2259,6 +2268,50 @@ void MyFrame::OnSave(wxCommandEvent& WXUNUSED(event))
}
else
#endif
#if wxUSE_POSTSCRIPT
if ( ext == wxS("ps") )
{
// Graphics screen can only be drawn using wxGraphicsContext
if ( m_canvas->GetPage() == File_ShowGraphics )
{
wxLogMessage("Graphics screen can not be saved as PostScript file.");
return;
}
#if wxUSE_GRAPHICS_CONTEXT
wxGraphicsRenderer* curRenderer = m_canvas->GetRenderer();
m_canvas->UseGraphicRenderer(NULL);
#endif // wxUSE_GRAPHICS_CONTEXT
wxPrintData printData;
printData.SetPrintMode(wxPRINT_MODE_FILE);
printData.SetFilename(dlg.GetPath());
printData.SetOrientation(wxPORTRAIT);
printData.SetPaperId(wxPAPER_A4);
wxPostScriptDC psdc(printData);
// Save current scale factor
const double curUserScaleX = m_xUserScale;
const double curUserScaleY = m_yUserScale;
// Change the scale temporarily to fit the drawing into the page.
int w, h;
psdc.GetSize(&w, &h);
double sc = wxMin((double)w / width, (double)h / height);
m_xUserScale *= sc;
m_yUserScale *= sc;
psdc.StartDoc(wxS("Drawing sample"));
// Define default font.
psdc.SetFont( wxFontInfo(10).Family(wxFONTFAMILY_MODERN) );
psdc.StartPage();
m_canvas->Draw(psdc);
psdc.EndPage();
psdc.EndDoc();
// Restore original scale facor
m_xUserScale = curUserScaleX;
m_yUserScale = curUserScaleY;
#if wxUSE_GRAPHICS_CONTEXT
m_canvas->UseGraphicRenderer(curRenderer);
#endif // wxUSE_GRAPHICS_CONTEXT
}
else
#endif // wxUSE_POSTSCRIPT
{
wxBitmap bmp(width, height);
wxMemoryDC mdc(bmp);