- wxCoord x1, y1, descent1, externalLeading1;
- GetTextExtent(string, & x1, & y1, & descent1, & externalLeading1, theFont, use16bit);
- *x = x1; *y = y1;
- if (descent)
- *descent = descent1;
- if (externalLeading)
- *externalLeading = externalLeading1;
+ m_bitmap = hBitmap;
+ m_dc = 0;
+ m_width = w;
+ m_height = h;
+ m_depth = depth;
+}
+
+wxDCCacheEntry::wxDCCacheEntry(WXHDC hDC, int depth)
+{
+ m_bitmap = 0;
+ m_dc = hDC;
+ m_width = 0;
+ m_height = 0;
+ m_depth = depth;
+}
+
+wxDCCacheEntry::~wxDCCacheEntry()
+{
+ if (m_bitmap)
+ ::DeleteObject((HBITMAP) m_bitmap);
+ if (m_dc)
+ ::DeleteDC((HDC) m_dc);
+}
+
+wxDCCacheEntry* wxDC::FindBitmapInCache(WXHDC dc, int w, int h)
+{
+ int depth = ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
+ wxNode* node = sm_bitmapCache.First();
+ while (node)
+ {
+ wxDCCacheEntry* entry = (wxDCCacheEntry*) node->Data();
+
+ if (entry->m_depth == depth)
+ {
+ if (entry->m_width < w || entry->m_height < h)
+ {
+ ::DeleteObject((HBITMAP) entry->m_bitmap);
+ entry->m_bitmap = (WXHBITMAP) ::CreateCompatibleBitmap((HDC) dc, w, h);
+ if ( !entry->m_bitmap)
+ {
+ wxLogLastError(wxT("CreateCompatibleBitmap"));
+ }
+ entry->m_width = w; entry->m_height = h;
+ return entry;
+ }
+ return entry;
+ }
+
+ node = node->Next();
+ }
+ WXHBITMAP hBitmap = (WXHBITMAP) ::CreateCompatibleBitmap((HDC) dc, w, h);
+ if ( !hBitmap)
+ {
+ wxLogLastError(wxT("CreateCompatibleBitmap"));
+ }
+ wxDCCacheEntry* entry = new wxDCCacheEntry(hBitmap, w, h, depth);
+ AddToBitmapCache(entry);
+ return entry;
+}
+
+wxDCCacheEntry* wxDC::FindDCInCache(wxDCCacheEntry* notThis, WXHDC dc)
+{
+ int depth = ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
+ wxNode* node = sm_dcCache.First();
+ while (node)
+ {
+ wxDCCacheEntry* entry = (wxDCCacheEntry*) node->Data();
+
+ // Don't return the same one as we already have
+ if (!notThis || (notThis != entry))
+ {
+ if (entry->m_depth == depth)
+ {
+ return entry;
+ }
+ }
+
+ node = node->Next();
+ }
+ WXHDC hDC = (WXHDC) ::CreateCompatibleDC((HDC) dc);
+ if ( !hDC)
+ {
+ wxLogLastError(wxT("CreateCompatibleDC"));
+ }
+ wxDCCacheEntry* entry = new wxDCCacheEntry(hDC, depth);
+ AddToDCCache(entry);
+ return entry;
projects / wxWidgets.git / blobdiff