added GetMargins()

[wxWidgets.git] / include / wx / dc.h

diff --git a/include/wx/dc.h b/include/wx/dc.h
index 2388b401f844445ea53ca51a8205592d46693c1d..faee757e84bcdc02db8b4986816de2d3e6687d91 100644 (file)
--- a/include/wx/dc.h
+++ b/include/wx/dc.h
@@ -31,6 +31,65 @@
 
 #include "wx/list.h"            // we use wxList in inline functions
 
+class WXDLLEXPORT wxDCBase;
+
+class WXDLLEXPORT wxDrawObject
+{
+public:
+
+    wxDrawObject()
+    {
+        ResetBoundingBox();
+    }
+
+    virtual ~wxDrawObject() { }
+
+    virtual void Draw(wxDCBase& dc) const { }
+
+    virtual void CalcBoundingBox(wxCoord x, wxCoord y)
+    {
+      if ( m_isBBoxValid )
+      {
+         if ( x < m_minX ) m_minX = x;
+         if ( y < m_minY ) m_minY = y;
+         if ( x > m_maxX ) m_maxX = x;
+         if ( y > m_maxY ) m_maxY = y;
+      }
+      else
+      {
+         m_isBBoxValid = TRUE;
+
+         m_minX = x;
+         m_minY = y;
+         m_maxX = x;
+         m_maxY = y;
+      }
+    }
+
+    void ResetBoundingBox()
+    {
+        m_isBBoxValid = FALSE;
+
+        m_minX = m_maxX = m_minY = m_maxY = 0;
+    }
+
+    // Get the final bounding box of the PostScript or Metafile picture.
+
+    wxCoord MinX() const { return m_minX; }
+    wxCoord MaxX() const { return m_maxX; }
+    wxCoord MinY() const { return m_minY; }
+    wxCoord MaxY() const { return m_maxY; }
+
+    //to define the type of object for derived objects
+    virtual int GetType()=0;
+
+protected:
+    //for boundingbox calculation
+    bool m_isBBoxValid:1;
+    //for boundingbox calculation
+    wxCoord m_minX, m_minY, m_maxX, m_maxY;
+};
+
 // ---------------------------------------------------------------------------
 // global variables
 // ---------------------------------------------------------------------------
@@ -43,15 +102,13 @@ WXDLLEXPORT_DATA(extern int) wxPageNumber;
 
 class WXDLLEXPORT wxDCBase : public wxObject
 {
-    DECLARE_ABSTRACT_CLASS(wxDCBase)
-
 public:
     wxDCBase()
     {
         m_clipping = FALSE;
         m_ok = TRUE;
 
-        m_minX = m_minY = m_maxX = m_maxY = 0;
+        ResetBoundingBox();
 
         m_signX = m_signY = 1;
 
@@ -62,7 +119,7 @@ public:
         m_userScaleX = m_userScaleY =
         m_scaleX = m_scaleY = 1.0;
 
-        m_logicalFunction = -1;
+        m_logicalFunction = wxCOPY;
 
         m_backgroundMode = wxTRANSPARENT;
 
@@ -84,6 +141,13 @@ public:
     // graphic primitives
     // ------------------
 
+    virtual void DrawObject(wxDrawObject* drawobject)
+    {
+        drawobject->Draw(*this);
+        CalcBoundingBox(drawobject->MinX(),drawobject->MinY());
+        CalcBoundingBox(drawobject->MaxX(),drawobject->MaxY());
+    }
+
     void FloodFill(wxCoord x, wxCoord y, const wxColour& col,
                    int style = wxFLOOD_SURFACE)
         { DoFloodFill(x, y, col, style); }
@@ -112,6 +176,12 @@ public:
     void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre)
         { DoDrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y); }
 
+    void DrawCheckMark(wxCoord x, wxCoord y,
+                       wxCoord width, wxCoord height)
+        { DoDrawCheckMark(x, y, width, height); }
+    void DrawCheckMark(const wxRect& rect)
+        { DoDrawCheckMark(rect.x, rect.y, rect.width, rect.height); }
+
     void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
                          double sa, double ea)
         { DoDrawEllipticArc(x, y, w, h, sa, ea); }
@@ -181,6 +251,11 @@ public:
     void DrawText(const wxString& text, const wxPoint& pt)
         { DoDrawText(text, pt.x, pt.y); }
 
+    void DrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
+        { DoDrawRotatedText(text, x, y, angle); }
+    void DrawRotatedText(const wxString& text, const wxPoint& pt, double angle)
+        { DoDrawRotatedText(text, pt.x, pt.y, angle); }
+
     bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
               wxDC *source, wxCoord xsrc, wxCoord ysrc,
               int rop = wxCOPY, bool useMask = FALSE)
@@ -256,7 +331,7 @@ public:
 
     virtual wxCoord GetCharHeight() const = 0;
     virtual wxCoord GetCharWidth() const = 0;
-    
+
     void GetTextExtent(const wxString& string,
                        wxCoord *x, wxCoord *y,
                        wxCoord *descent = NULL,
@@ -321,6 +396,7 @@ public:
     // ---------
 
         // const...
+    int GetBackgroundMode() const { return m_backgroundMode; }
     const wxBrush&  GetBackground() const { return m_backgroundBrush; }
     const wxBrush&  GetBrush() const { return m_brush; }
     const wxFont&   GetFont() const { return m_font; }
@@ -391,10 +467,29 @@ public:
 
     virtual void CalcBoundingBox(wxCoord x, wxCoord y)
     {
-        if ( x < m_minX ) m_minX = x;
-        if ( y < m_minY ) m_minY = y;
-        if ( x > m_maxX ) m_maxX = x;
-        if ( y > m_maxY ) m_maxY = y;
+      if ( m_isBBoxValid )
+      {
+         if ( x < m_minX ) m_minX = x;
+         if ( y < m_minY ) m_minY = y;
+         if ( x > m_maxX ) m_maxX = x;
+         if ( y > m_maxY ) m_maxY = y;
+      }
+      else
+      {
+         m_isBBoxValid = TRUE;
+
+         m_minX = x;
+         m_minY = y;
+         m_maxX = x;
+         m_maxY = y;
+      }
+    }
+
+    void ResetBoundingBox()
+    {
+        m_isBBoxValid = FALSE;
+
+        m_minX = m_maxX = m_minY = m_maxY = 0;
     }
 
     // Get the final bounding box of the PostScript or Metafile picture.
@@ -448,13 +543,13 @@ public:
             *y = y2;
     }
     void GetClippingBox(long *x, long *y, long *w, long *h) const
-    { 
-       wxCoord xx,yy,ww,hh;
-       DoGetClippingBox(&xx, &yy, &ww, &hh);
-       if (x) *x = xx;
-       if (y) *y = yy;
-       if (w) *w = ww;
-       if (h) *h = hh;
+    {
+        wxCoord xx,yy,ww,hh;
+        DoGetClippingBox(&xx, &yy, &ww, &hh);
+        if (x) *x = xx;
+        if (y) *y = yy;
+        if (w) *w = ww;
+        if (h) *h = hh;
     }
 #endif // !Win16
 
@@ -480,6 +575,8 @@ protected:
     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
                            wxCoord x2, wxCoord y2,
                            wxCoord xc, wxCoord yc) = 0;
+    virtual void DoDrawCheckMark(wxCoord x, wxCoord y,
+                                 wxCoord width, wxCoord height);
     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
                                    double sa, double ea) = 0;
 
@@ -497,6 +594,8 @@ protected:
                               bool useMask = FALSE) = 0;
 
     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) = 0;
+    virtual void DoDrawRotatedText(const wxString& text,
+                                   wxCoord x, wxCoord y, double angle) = 0;
 
     virtual bool DoBlit(wxCoord xdest, wxCoord ydest,
                         wxCoord width, wxCoord height,
@@ -564,6 +663,7 @@ protected:
     bool m_ok:1;
     bool m_clipping:1;
     bool m_isInteractive:1;
+    bool m_isBBoxValid:1;
 
     // coordinate system variables
 
@@ -598,6 +698,7 @@ protected:
 
 private:
     DECLARE_NO_COPY_CLASS(wxDCBase);
+    DECLARE_ABSTRACT_CLASS(wxDCBase)
 };
 
 // ----------------------------------------------------------------------------