virtual ~wxDrawObject() { }
- virtual void Draw(wxDCBase& dc) const { }
+ virtual void Draw(wxDCBase&) const { }
virtual void CalcBoundingBox(wxCoord x, wxCoord y)
{
void DrawRotatedText(const wxString& text, const wxPoint& pt, double angle)
{ DoDrawRotatedText(text, pt.x, pt.y, angle); }
+ // this version puts both optional bitmap and the text into the given
+ // rectangle and aligns is as specified by alignment parameter; it also
+ // will emphasize the character with the given index if it is != -1 and
+ // return the bounding rectangle if required
+ virtual void DrawLabel(const wxString& text,
+ const wxBitmap& image,
+ const wxRect& rect,
+ int alignment = wxALIGN_LEFT | wxALIGN_TOP,
+ int indexAccel = -1,
+ wxRect *rectBounding = NULL);
+
+ void DrawLabel(const wxString& text, const wxRect& rect,
+ int alignment = wxALIGN_LEFT | wxALIGN_TOP,
+ int indexAccel = -1)
+ { DrawLabel(text, wxNullBitmap, rect, alignment, indexAccel); }
+
bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
wxDC *source, wxCoord xsrc, wxCoord ysrc,
int rop = wxCOPY, bool useMask = FALSE)
virtual wxCoord GetCharHeight() const = 0;
virtual wxCoord GetCharWidth() const = 0;
+ // only works for single line strings
void GetTextExtent(const wxString& string,
wxCoord *x, wxCoord *y,
wxCoord *descent = NULL,
wxFont *theFont = NULL) const
{ DoGetTextExtent(string, x, y, descent, externalLeading, theFont); }
+ // works for single as well as multi-line strings
+ virtual void GetMultiLineTextExtent(const wxString& text,
+ wxCoord *width,
+ wxCoord *height,
+ wxCoord *heightLine = NULL,
+ wxFont *font = NULL);
+
// size and resolution
// -------------------
wxPalette m_palette;
private:
- DECLARE_NO_COPY_CLASS(wxDCBase);
+ DECLARE_NO_COPY_CLASS(wxDCBase)
DECLARE_ABSTRACT_CLASS(wxDCBase)
};
#include "wx/motif/dc.h"
#elif defined(__WXGTK__)
#include "wx/gtk/dc.h"
+#elif defined(__WXMGL__)
+ #include "wx/mgl/dc.h"
#elif defined(__WXQT__)
#include "wx/qt/dc.h"
#elif defined(__WXMAC__)
#include "wx/stubs/dc.h"
#endif
+// ----------------------------------------------------------------------------
+// helper class: you can use it to temporarily change the DC text colour and
+// restore it automatically when the object goes out of scope
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxDCTextColourChanger
+{
+public:
+ wxDCTextColourChanger(wxDC& dc) : m_dc(dc) { }
+
+ ~wxDCTextColourChanger()
+ {
+ if ( m_colFgOld.Ok() )
+ m_dc.SetTextForeground(m_colFgOld);
+ }
+
+ void Set(const wxColour& col)
+ {
+ if ( !m_colFgOld.Ok() )
+ m_colFgOld = m_dc.GetTextForeground();
+ m_dc.SetTextForeground(col);
+ }
+
+private:
+ wxDC& m_dc;
+
+ wxColour m_colFgOld;
+};
+
#endif
// _WX_DC_H_BASE_