Fixed some compile errors (MSVC++ 6) and some very strange link errors when

[wxWidgets.git] / src / motif / dcclient.cpp

diff --git a/src/motif/dcclient.cpp b/src/motif/dcclient.cpp
index 8336c61a64910c58e28822ac5b669dc620dc9dd0..bda0770424270cf3170a99f478689707a1b331a6 100644 (file)
--- a/src/motif/dcclient.cpp
+++ b/src/motif/dcclient.cpp
@@ -127,6 +127,7 @@ wxWindowDC::wxWindowDC( wxWindow *window )
     wxASSERT_MSG( (window != (wxWindow*) NULL), "You must pass a valid wxWindow to wxWindowDC/wxClientDC/wxPaintDC constructor." );
 
     m_window = window;
     wxASSERT_MSG( (window != (wxWindow*) NULL), "You must pass a valid wxWindow to wxWindowDC/wxClientDC/wxPaintDC constructor." );
 
     m_window = window;

+    m_font = window->GetFont();

     m_gc = (WXGC) 0;
     m_gcBacking = (WXGC) 0;
     m_backgroundPixel = -1;
     m_gc = (WXGC) 0;
     m_gcBacking = (WXGC) 0;
     m_backgroundPixel = -1;


@@ -1180,8 +1181,8 @@ void wxWindowDC::GetTextExtent( const wxString &string, long *width, long *heigh
         // TODO: this should be an error log function
         wxFAIL_MSG("set a valid font before calling GetTextExtent!");
 
         // TODO: this should be an error log function
         wxFAIL_MSG("set a valid font before calling GetTextExtent!");
 

-        *width = -1;
-        *height = -1;
+        if (width) *width = -1;
+        if (height) *height = -1;

         return;
     }
 
         return;
     }
 


@@ -1207,8 +1208,8 @@ void wxWindowDC::GetTextExtent( const wxString &string, long *width, long *heigh
         XTextExtents((XFontStruct*) pFontStruct, (char*) (const char*) string, slen, &direction,
         &ascent, &descent2, &overall);
 
         XTextExtents((XFontStruct*) pFontStruct, (char*) (const char*) string, slen, &direction,
         &ascent, &descent2, &overall);
 

-    *width = XDEV2LOGREL (overall.width);
-    *height = YDEV2LOGREL (ascent + descent2);
+    if (width) *width = XDEV2LOGREL (overall.width);
+    if (height) *height = YDEV2LOGREL (ascent + descent2);

     if (descent)
         *descent = descent2;
     if (externalLeading)
     if (descent)
         *descent = descent2;
     if (externalLeading)


@@ -1992,7 +1993,7 @@ void wxWindowDC::SetDCClipping()
 
 void wxWindowDC::DoSetClippingRegion( long x, long y, long width, long height )
 {
 
 void wxWindowDC::DoSetClippingRegion( long x, long y, long width, long height )
 {

-    wxDC::SetClippingRegion( x, y, width, height );
+    wxDC::DoSetClippingRegion( x, y, width, height );

 
     if (m_userRegion)
         XDestroyRegion ((Region) m_userRegion);
 
     if (m_userRegion)
         XDestroyRegion ((Region) m_userRegion);


@@ -2023,7 +2024,7 @@ void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion& region )
 {
     wxRect box = region.GetBox();
 
 {
     wxRect box = region.GetBox();
 

-    wxDC::SetClippingRegion( box.x, box.y, box.width, box.height );
+    wxDC::DoSetClippingRegion( box.x, box.y, box.width, box.height );

 
     if (m_userRegion)
         XDestroyRegion ((Region) m_userRegion);
 
     if (m_userRegion)
         XDestroyRegion ((Region) m_userRegion);


@@ -2075,6 +2076,178 @@ int wxWindowDC::GetDepth() const
     return 24;
 }
 
     return 24;
 }
 

+#if wxUSE_SPLINES
+// ----------------------------------- spline code ----------------------------------------
+
+void wx_quadratic_spline(double a1, double b1, double a2, double b2,
+                         double a3, double b3, double a4, double b4);
+void wx_clear_stack();
+int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3,
+        double *y3, double *x4, double *y4);
+void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3,
+          double x4, double y4);
+static bool wx_spline_add_point(double x, double y);
+static void wx_spline_draw_point_array(wxDC *dc);
+
+wxList wx_spline_point_list;
+
+#define                half(z1, z2)        ((z1+z2)/2.0)
+#define                THRESHOLD        5
+
+/* iterative version */
+
+void wx_quadratic_spline(double a1, double b1, double a2, double b2, double a3, double b3, double a4,
+                 double b4)
+{
+    register double  xmid, ymid;
+    double           x1, y1, x2, y2, x3, y3, x4, y4;
+
+    wx_clear_stack();
+    wx_spline_push(a1, b1, a2, b2, a3, b3, a4, b4);
+
+    while (wx_spline_pop(&x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4)) {
+        xmid = (double)half(x2, x3);
+        ymid = (double)half(y2, y3);
+        if (fabs(x1 - xmid) < THRESHOLD && fabs(y1 - ymid) < THRESHOLD &&
+            fabs(xmid - x4) < THRESHOLD && fabs(ymid - y4) < THRESHOLD) {
+            wx_spline_add_point( x1, y1 );
+            wx_spline_add_point( xmid, ymid );
+        } else {
+            wx_spline_push(xmid, ymid, (double)half(xmid, x3), (double)half(ymid, y3),
+                 (double)half(x3, x4), (double)half(y3, y4), x4, y4);
+            wx_spline_push(x1, y1, (double)half(x1, x2), (double)half(y1, y2),
+                 (double)half(x2, xmid), (double)half(y2, ymid), xmid, ymid);
+        }
+    }
+}
+
+/* utilities used by spline drawing routines */
+
+typedef struct wx_spline_stack_struct {
+    double           x1, y1, x2, y2, x3, y3, x4, y4;
+} Stack;
+
+#define         SPLINE_STACK_DEPTH             20
+static Stack    wx_spline_stack[SPLINE_STACK_DEPTH];
+static Stack   *wx_stack_top;
+static int      wx_stack_count;
+
+void wx_clear_stack()
+{
+    wx_stack_top = wx_spline_stack;
+    wx_stack_count = 0;
+}
+
+void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)
+{
+    wx_stack_top->x1 = x1;
+    wx_stack_top->y1 = y1;
+    wx_stack_top->x2 = x2;
+    wx_stack_top->y2 = y2;
+    wx_stack_top->x3 = x3;
+    wx_stack_top->y3 = y3;
+    wx_stack_top->x4 = x4;
+    wx_stack_top->y4 = y4;
+    wx_stack_top++;
+    wx_stack_count++;
+}
+
+int wx_spline_pop(double *x1, double *y1, double *x2, double *y2,
+                  double *x3, double *y3, double *x4, double *y4)
+{
+    if (wx_stack_count == 0)
+        return (0);
+    wx_stack_top--;
+    wx_stack_count--;
+    *x1 = wx_stack_top->x1;
+    *y1 = wx_stack_top->y1;
+    *x2 = wx_stack_top->x2;
+    *y2 = wx_stack_top->y2;
+    *x3 = wx_stack_top->x3;
+    *y3 = wx_stack_top->y3;
+    *x4 = wx_stack_top->x4;
+    *y4 = wx_stack_top->y4;
+    return (1);
+}
+
+static bool wx_spline_add_point(double x, double y)
+{
+  wxPoint *point = new wxPoint ;
+  point->x = (int) x;
+  point->y = (int) y;
+  wx_spline_point_list.Append((wxObject*)point);
+  return TRUE;
+}
+
+static void wx_spline_draw_point_array(wxDC *dc)
+{
+  dc->DrawLines(&wx_spline_point_list, 0, 0 );
+  wxNode *node = wx_spline_point_list.First();
+  while (node)
+  {
+    wxPoint *point = (wxPoint *)node->Data();
+    delete point;
+    delete node;
+    node = wx_spline_point_list.First();
+  }
+}
+
+void wxWindowDC::DoDrawSpline( wxList *points )
+{
+    wxCHECK_RET( Ok(), _T("invalid window dc") );
+  
+    wxPoint *p;
+    double           cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
+    double           x1, y1, x2, y2;
+
+    wxNode *node = points->First();
+    p = (wxPoint *)node->Data();
+
+    x1 = p->x;
+    y1 = p->y;
+
+    node = node->Next();
+    p = (wxPoint *)node->Data();
+
+    x2 = p->x;
+    y2 = p->y;
+    cx1 = (double)((x1 + x2) / 2);
+    cy1 = (double)((y1 + y2) / 2);
+    cx2 = (double)((cx1 + x2) / 2);
+    cy2 = (double)((cy1 + y2) / 2);
+
+    wx_spline_add_point(x1, y1);
+
+    while ((node = node->Next()) != NULL)
+    {
+        p = (wxPoint *)node->Data();
+        x1 = x2;
+        y1 = y2;
+        x2 = p->x;
+        y2 = p->y;
+        cx4 = (double)(x1 + x2) / 2;
+        cy4 = (double)(y1 + y2) / 2;
+        cx3 = (double)(x1 + cx4) / 2;
+        cy3 = (double)(y1 + cy4) / 2;
+
+        wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
+
+        cx1 = cx4;
+        cy1 = cy4;
+        cx2 = (double)(cx1 + x2) / 2;
+        cy2 = (double)(cy1 + y2) / 2;
+    }
+
+    wx_spline_add_point( cx1, cy1 );
+    wx_spline_add_point( x2, y2 );
+
+    wx_spline_draw_point_array( this );
+}
+
+#endif // wxUSE_SPLINE
+
+
+

 // ----------------------------------------------------------------------------
 // wxPaintDC
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxPaintDC
 // ----------------------------------------------------------------------------