Prevents crashes caused by negative line count being passed to wrapping functions...

[wxWidgets.git] / src / mgl / brush.cpp

diff --git a/src/mgl/brush.cpp b/src/mgl/brush.cpp
index dbfc1ab3d4b4f70ea6903e8b17248500df5b6df4..039d7ef4f52357f69635dcf2903b3e5e0efdd3b0 100644 (file)
--- a/src/mgl/brush.cpp
+++ b/src/mgl/brush.cpp
@@ -1,16 +1,12 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        brush.cpp
+// Name:        src/mgl/brush.cpp
 // Purpose:
 // Author:      Vaclav Slavik
 // Id:          $Id$
-// Copyright:   (c) 2001 Vaclav Slavik
-// Licence:    wxWindows licence
+// Copyright:   (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "brush.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -30,13 +26,13 @@
 // This function converts wxBitmap into pixpattern24_t representation
 // (used by wxBrush and wxPen)
 
-void wxBitmapToPixPattern(const wxBitmap& bitmap, 
+void wxBitmapToPixPattern(const wxBitmap& bitmap,
                           pixpattern24_t *pix, pattern_t *mask)
 {
     wxMemoryDC mem;
     MGLDevCtx *dc;
     int x, y;
-    
+
     if ( pix != NULL )
     {
         mem.SelectObject(bitmap);
@@ -45,9 +41,9 @@ void wxBitmapToPixPattern(const wxBitmap& bitmap,
         dc->beginPixel();
         for (y = 0; y < 8; y++)
             for (x = 0; x < 8; x++)
-                dc->unpackColorFast(dc->getPixelFast(x, y), 
+                dc->unpackColorFast(dc->getPixelFast(x, y),
                                     pix->p[y][x][2],
-                                    pix->p[y][x][1], 
+                                    pix->p[y][x][1],
                                     pix->p[y][x][0]);
         dc->endPixel();
     }
@@ -63,7 +59,7 @@ void wxBitmapToPixPattern(const wxBitmap& bitmap,
             mask->p[y] = 0;
             for (x = 0; x < 8; x++)
                 if ( dc->getPixelFast(x, y) != 0 )
-                    mask->p[y] |= 1 << (7 - x);
+                    mask->p[y] = (uchar)(mask->p[y] | (1 << (7 - x)));
         }
         dc->endPixel();
     }
@@ -121,58 +117,30 @@ wxBrushRefData::wxBrushRefData(const wxBrushRefData& data)
 
 IMPLEMENT_DYNAMIC_CLASS(wxBrush,wxGDIObject)
 
-wxBrush::wxBrush()
-{
-    if (wxTheBrushList) wxTheBrushList->AddBrush(this);
-}
-
 wxBrush::wxBrush(const wxColour &colour, int style)
 {
     m_refData = new wxBrushRefData();
     M_BRUSHDATA->m_style = style;
     M_BRUSHDATA->m_colour = colour;
-
-    if (wxTheBrushList) wxTheBrushList->AddBrush(this);
 }
 
 wxBrush::wxBrush(const wxBitmap &stippleBitmap)
 {
     wxCHECK_RET( stippleBitmap.Ok(), _T("invalid bitmap") );
-    wxCHECK_RET( stippleBitmap.GetWidth() == 8 && stippleBitmap.GetHeight() == 8, 
+    wxCHECK_RET( stippleBitmap.GetWidth() == 8 && stippleBitmap.GetHeight() == 8,
                   _T("stipple bitmap must be 8x8") );
 
     m_refData = new wxBrushRefData();
     M_BRUSHDATA->m_colour = *wxBLACK;
-    
+
     M_BRUSHDATA->m_stipple = stippleBitmap;
-    wxBitmapToPixPattern(stippleBitmap, &(M_BRUSHDATA->m_pixPattern), 
+    wxBitmapToPixPattern(stippleBitmap, &(M_BRUSHDATA->m_pixPattern),
                                         &(M_BRUSHDATA->m_maskPattern));
 
     if (M_BRUSHDATA->m_stipple.GetMask())
-               M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE;
-       else
-               M_BRUSHDATA->m_style = wxSTIPPLE;
-
-    if (wxTheBrushList) wxTheBrushList->AddBrush(this);
-}
-
-wxBrush::wxBrush(const wxBrush &brush)
-{
-    Ref(brush);
-
-    if (wxTheBrushList) wxTheBrushList->AddBrush(this);
-}
-
-wxBrush::~wxBrush()
-{
-    if (wxTheBrushList) wxTheBrushList->RemoveBrush(this);
-}
-
-wxBrush& wxBrush::operator = (const wxBrush& brush)
-{
-    if (*this == brush) return (*this);
-    Ref(brush);
-    return *this;
+        M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE;
+    else
+        M_BRUSHDATA->m_style = wxSTIPPLE;
 }
 
 bool wxBrush::operator == (const wxBrush& brush) const
@@ -239,28 +207,28 @@ void* wxBrush::GetPixPattern() const
 
 void wxBrush::SetColour(const wxColour& col)
 {
-    Unshare();
+    AllocExclusive();
     M_BRUSHDATA->m_colour = col;
 }
 
 void wxBrush::SetColour(unsigned char r, unsigned char g, unsigned char b)
 {
-    Unshare();
+    AllocExclusive();
     M_BRUSHDATA->m_colour.Set(r, g, b);
 }
 
 void wxBrush::SetStyle( int style )
 {
-    Unshare();
+    AllocExclusive();
     M_BRUSHDATA->m_style = style;
 }
 
 void wxBrush::SetStipple(const wxBitmap& stipple)
 {
-    Unshare();
+    AllocExclusive();
 
     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
-    wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8, 
+    wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
                   _T("stipple bitmap must be 8x8") );
 
     M_BRUSHDATA->m_stipple = stipple;
@@ -273,17 +241,12 @@ void wxBrush::SetStipple(const wxBitmap& stipple)
         M_BRUSHDATA->m_style = wxSTIPPLE;
 }
 
-void wxBrush::Unshare()
+wxObjectRefData *wxBrush::CreateRefData() const
 {
-    if (!m_refData)
-    {
-        m_refData = new wxBrushRefData();
-    }
-    else
-    {
-        wxBrushRefData* ref = new wxBrushRefData(*(wxBrushRefData*)m_refData);
-        UnRef();
-        m_refData = ref;
-    }
+    return new wxBrushRefData;
 }
 
+wxObjectRefData *wxBrush::CloneRefData(const wxObjectRefData *data) const
+{
+    return new wxBrushRefData(*(wxBrushRefData *)data);
+}