fixed wxEVT_CONTEXT_MENU generation (it works differently under w2k/XP than under...

[wxWidgets.git] / src / msw / gdiimage.cpp

diff --git a/src/msw/gdiimage.cpp b/src/msw/gdiimage.cpp
index 2e6ae1b7f59c6507d795af7bcf6c9ec888795161..26cabaa71c197710b2bb639a90f129f46e1de1a5 100644 (file)
--- a/src/msw/gdiimage.cpp
+++ b/src/msw/gdiimage.cpp
@@ -49,9 +49,20 @@
 #include <shellapi.h>
 #endif
 
+#include "wx/file.h"
+
 #include "wx/listimpl.cpp"
 WX_DEFINE_LIST(wxGDIImageHandlerList);
 
+// ----------------------------------------------------------------------------
+// auxiliary functions
+// ----------------------------------------------------------------------------
+
+#ifdef __WXWINCE__
+// Used in wxBMPFileHandler::LoadFile
+HBITMAP wxLoadBMP(const wxString& filename) ;
+#endif
+
 // ----------------------------------------------------------------------------
 // private classes
 // ----------------------------------------------------------------------------
@@ -345,6 +356,9 @@ bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap,
     bitmap->SetHeight(bm.bmHeight);
     bitmap->SetDepth(bm.bmBitsPixel);
 
+    // use 0xc0c0c0 as transparent colour by default
+    bitmap->SetMask(new wxMask(*bitmap, *wxLIGHT_GREY));
+
     return true;
 }
 
@@ -358,8 +372,14 @@ bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap,
 
     wxDIB dib(name);
 
-    return dib.IsOk() && bitmap->CopyFromDIB(dib);
+    bool ok = dib.IsOk() && bitmap->CopyFromDIB(dib);
+    return ok;
 #else
+  WXHBITMAP hBitmap = (WXHBITMAP)wxLoadBMP(name);
+  if(hBitmap) {
+      bitmap->SetHBITMAP(hBitmap);
+      return TRUE;
+  }
     return FALSE;
 #endif
 }
@@ -597,3 +617,80 @@ wxSize wxGetHiconSize(HICON hicon)
 
 #endif // __WXMICROWIN__
 
+#ifdef __WXWINCE__
+// Used in wxBMPFileHandler::LoadFile
+HBITMAP wxLoadBMP(const wxString& filename)
+{
+  wxFile file;
+  if(!file.Open(filename))
+        return 0;
+
+    // The first part of the file contains the file header.
+  // This will tell us if it is a bitmap, how big the header is, and how big
+    // the file is. The header size in the file header includes the color table.
+  BITMAPFILEHEADER BmpFileHdr;
+  BITMAPINFO *pBmpInfo = (BITMAPINFO*)malloc(sizeof(BITMAPINFO)+255*sizeof(RGBQUAD));
+  BYTE* pBits = 0;
+  HBITMAP hBitmap = 0;
+
+  if(file.Read(&BmpFileHdr, sizeof(BmpFileHdr))==sizeof(BmpFileHdr)
+    && !strncmp((char*)&BmpFileHdr.bfType,"BM",2)
+    && file.Read(pBmpInfo, sizeof(BITMAPINFOHEADER))==sizeof(BITMAPINFOHEADER)
+    && pBmpInfo->bmiHeader.biSize == sizeof(BITMAPINFOHEADER)) {
+
+
+      unsigned int nColors = pBmpInfo->bmiHeader.biClrUsed ?
+      pBmpInfo->bmiHeader.biClrUsed : 1 << pBmpInfo->bmiHeader.biBitCount;
+    if (nColors < 1
+      || file.Read(pBmpInfo->bmiColors, nColors * sizeof(RGBQUAD))
+        == (off_t)(nColors * sizeof(RGBQUAD))) {
+
+      // So how big the bitmap surface is.
+      int nBitsSize = BmpFileHdr.bfSize - BmpFileHdr.bfOffBits;
+
+        // Allocate the memory for the bits and read the bits from the file.
+      pBits = (BYTE*) malloc(nBitsSize*2);
+      if (pBits) {
+        // Seek to the bits in the file.
+        file.Seek(BmpFileHdr.bfOffBits);
+
+        // read the bits
+        if(file.Read(pBits, nBitsSize)==nBitsSize) {
+          // Everything went OK.
+          pBmpInfo->bmiHeader.biSizeImage = nBitsSize;
+
+          //HBITMAP hBitmap=SetBitmap((LPBITMAPINFO)pBmpInfo, pBits);
+            DWORD dwBitmapInfoSize = sizeof(BITMAPINFO) + nColors*sizeof(RGBQUAD);
+
+            // Create a DC which will be used to get DIB, then create DIBsection
+            HDC hDC = ::GetDC(NULL);
+          if (hDC) {
+            LPVOID bits;
+            hBitmap = CreateDIBSection(hDC, (const BITMAPINFO*) pBmpInfo,
+              DIB_RGB_COLORS, &bits, NULL, 0);
+            ReleaseDC(0,hDC);
+
+            if (hBitmap) {
+              DWORD dwImageSize = pBmpInfo->bmiHeader.biSizeImage;
+              if (dwImageSize == 0) {
+                int nBytesPerLine = pBmpInfo->bmiHeader.biWidth * pBmpInfo->bmiHeader.biBitCount;
+                nBytesPerLine = ( (nBytesPerLine + 31) & (~31) ) / 8;
+                dwImageSize = nBytesPerLine * pBmpInfo->bmiHeader.biHeight;
+              }
+              memcpy(bits, pBits, dwImageSize);
+            }
+          }
+        }
+      }
+    }
+  }
+
+  if(pBmpInfo)
+    free(pBmpInfo);
+  if(pBits)
+      free(pBits);
+
+  return hBitmap;
+}
+#endif
+