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[wxWidgets.git] / src / common / imagfill.cpp

diff --git a/src/common/imagfill.cpp b/src/common/imagfill.cpp
index b5a6c66a5300031da30fe282ff5cda60a13ec8cf..bfe5345247156609630ba84a5c80c64f3da45aa6 100644 (file)
--- a/src/common/imagfill.cpp
+++ b/src/common/imagfill.cpp
@@ -1,9 +1,9 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        imagfill.cpp
 // Purpose:     FloodFill for wxImage
 /////////////////////////////////////////////////////////////////////////////
 // Name:        imagfill.cpp
 // Purpose:     FloodFill for wxImage

-// Author:
+// Author:      Julian Smart

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:
+// Copyright:   (c) Julian Smart

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 


@@ -35,7 +35,7 @@
 
 static bool LINKAGEMODE MatchPixel(wxImage *img, int x, int y, int w, int h, const wxColour& c)
 {
 
 static bool LINKAGEMODE MatchPixel(wxImage *img, int x, int y, int w, int h, const wxColour& c)
 {

-    if ((x<0)||(x>=w)||(y<0)||(y>=h)) return FALSE;
+    if ((x<0)||(x>=w)||(y<0)||(y>=h)) return false;

 
     unsigned char r = img->GetRed(x,y);
     unsigned char g = img->GetGreen(x,y);
 
     unsigned char r = img->GetRed(x,y);
     unsigned char g = img->GetGreen(x,y);


@@ -45,16 +45,16 @@ static bool LINKAGEMODE MatchPixel(wxImage *img, int x, int y, int w, int h, con
 
 static bool LINKAGEMODE MatchBoundaryPixel(wxImage *img, int x, int y, int w, int h, const wxColour & fill, const wxColour& bound)
 {
 
 static bool LINKAGEMODE MatchBoundaryPixel(wxImage *img, int x, int y, int w, int h, const wxColour & fill, const wxColour& bound)
 {

-    if ((x<0)||(x>=w)||(y<0)||(y>=h)) return TRUE;
+    if ((x<0)||(x>=w)||(y<0)||(y>=h)) return true;

 
     unsigned char r = img->GetRed(x,y);
     unsigned char g = img->GetGreen(x,y);
     unsigned char b = img->GetBlue(x,y);
     if ( fill.Red() == r && fill.Green() == g && fill.Blue() == b )
 
     unsigned char r = img->GetRed(x,y);
     unsigned char g = img->GetGreen(x,y);
     unsigned char b = img->GetBlue(x,y);
     if ( fill.Red() == r && fill.Green() == g && fill.Blue() == b )

-        return TRUE;
+        return true;

     if ( bound.Red() == r && bound.Green() == g && bound.Blue() == b )
     if ( bound.Red() == r && bound.Green() == g && bound.Blue() == b )

-        return TRUE;
-    return FALSE;
+        return true;
+    return false;

 }
 
 
 }
 
 


@@ -67,7 +67,10 @@ wxImageFloodFill(wxImage *image,
     /* A diamond flood-fill using a circular queue system.
     Each pixel surrounding the current pixel is added to
     the queue if it meets the criteria, then is retrieved in
     /* A diamond flood-fill using a circular queue system.
     Each pixel surrounding the current pixel is added to
     the queue if it meets the criteria, then is retrieved in

-    its turn.  Code originally based on http://www.drawit.co.nz/Developers.htm */
+    its turn.  Code originally based on http://www.drawit.co.nz/Developers.htm,
+    with explicit permission to use this for wxWidgets granted by Andrew Empson
+    (no copyright claimed)
+     */

 
     int width = image->GetWidth();
     int height = image->GetHeight();
 
     int width = image->GetWidth();
     int height = image->GetHeight();


@@ -273,18 +276,19 @@ wxImageFloodFill(wxImage *image,
 }
 
 
 }
 
 

-void wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
+bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,

                    const wxColour& col, int style)
 {
     if (dc->GetBrush().GetStyle() == wxTRANSPARENT)
                    const wxColour& col, int style)
 {
     if (dc->GetBrush().GetStyle() == wxTRANSPARENT)

-        return;
+        return true;

 
     int height = 0;
     int width  = 0;
     dc->GetSize(&width, &height);
 
     //it would be nice to fail if we don't get a sensible size...
 
     int height = 0;
     int width  = 0;
     dc->GetSize(&width, &height);
 
     //it would be nice to fail if we don't get a sensible size...

-    wxCHECK_RET(width >= 1 && height >= 1, wxT("In FloodFill, dc.GetSize routine failed, method not supported by this DC"));
+    wxCHECK_MSG(width >= 1 && height >= 1, false,
+                wxT("In FloodFill, dc.GetSize routine failed, method not supported by this DC"));

 
     //this is much faster than doing the individual pixels
     wxMemoryDC memdc;
 
     //this is much faster than doing the individual pixels
     wxMemoryDC memdc;


@@ -300,6 +304,8 @@ void wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
     memdc.SelectObject(bitmap);
     dc->Blit(0, 0, width, height, &memdc, 0, 0);
     memdc.SelectObject(wxNullBitmap);
     memdc.SelectObject(bitmap);
     dc->Blit(0, 0, width, height, &memdc, 0, 0);
     memdc.SelectObject(wxNullBitmap);

+
+    return true;

 }
 
 #endif // wxUSE_IMAGE
 }
 
 #endif // wxUSE_IMAGE