+// This handler is required to allow the toolbar to be set to a non-default
+// colour: for example, when it must blend in with a notebook page.
+void wxToolBar::OnEraseBackground(wxEraseEvent& event)
+{
+ RECT rect = wxGetClientRect(GetHwnd());
+
+ wxDC *dc = event.GetDC();
+ if (!dc) return;
+ wxMSWDCImpl *impl = (wxMSWDCImpl*) dc->GetImpl();
+ HDC hdc = GetHdcOf(*impl);
+
+ int majorVersion, minorVersion;
+ wxGetOsVersion(& majorVersion, & minorVersion);
+
+#if wxUSE_UXTHEME
+ // we may need to draw themed colour so that we appear correctly on
+ // e.g. notebook page under XP with themes but only do it if the parent
+ // draws themed background itself
+ if ( !UseBgCol() && !GetParent()->UseBgCol() )
+ {
+ wxUxThemeEngine *theme = wxUxThemeEngine::GetIfActive();
+ if ( theme )
+ {
+ HRESULT
+ hr = theme->DrawThemeParentBackground(GetHwnd(), hdc, &rect);
+ if ( hr == S_OK )
+ return;
+
+ // it can also return S_FALSE which seems to simply say that it
+ // didn't draw anything but no error really occurred
+ if ( FAILED(hr) )
+ wxLogApiError(_T("DrawThemeParentBackground(toolbar)"), hr);
+ }
+ }
+
+ // Only draw a rebar theme on Vista, since it doesn't jive so well with XP
+ if ( !UseBgCol() && majorVersion >= 6 )
+ {
+ wxUxThemeEngine *theme = wxUxThemeEngine::GetIfActive();
+ if ( theme )
+ {
+ wxUxThemeHandle hTheme(this, L"REBAR");
+
+ RECT r;
+ wxRect rect = GetClientRect();
+ wxCopyRectToRECT(rect, r);
+
+ HRESULT hr = theme->DrawThemeBackground(hTheme, hdc, 0, 0, & r, NULL);
+ if ( hr == S_OK )
+ return;
+
+ // it can also return S_FALSE which seems to simply say that it
+ // didn't draw anything but no error really occurred
+ if ( FAILED(hr) )
+ wxLogApiError(_T("DrawThemeParentBackground(toolbar)"), hr);
+ }
+ }
+
+#endif // wxUSE_UXTHEME
+
+ // we need to always draw our background under XP, as otherwise it doesn't
+ // appear correctly with some themes (e.g. Zune one)
+ if ( majorVersion == 5 ||
+ UseBgCol() || (GetMSWToolbarStyle() & TBSTYLE_TRANSPARENT) )
+ {
+ // do draw our background
+ //
+ // notice that this 'dumb' implementation may cause flicker for some of
+ // the controls in which case they should intercept wxEraseEvent and
+ // process it themselves somehow
+ AutoHBRUSH hBrush(wxColourToRGB(GetBackgroundColour()));
+
+ wxCHANGE_HDC_MAP_MODE(hdc, MM_TEXT);
+ ::FillRect(hdc, &rect, hBrush);
+ }
+ else // we have no non default background colour
+ {
+ // let the system do it for us
+ event.Skip();
+ }
+}
+
+bool wxToolBar::HandleSize(WXWPARAM WXUNUSED(wParam), WXLPARAM lParam)
projects / wxWidgets.git / blobdiff