+void wxCheckBox::OnMouseLeft(wxMouseEvent& event)
+{
+ // TODO: we should capture the mouse here to be notified about left up
+ // event but this interferes with BN_CLICKED generation so if we
+ // want to do this we'd need to generate them ourselves
+ m_isPressed = event.GetEventType() == wxEVT_LEFT_DOWN;
+ Refresh();
+
+ event.Skip();
+}
+
+void wxCheckBox::OnFocus(wxFocusEvent& event)
+{
+ Refresh();
+
+ event.Skip();
+}
+
+bool wxCheckBox::MSWOnDraw(WXDRAWITEMSTRUCT *item)
+{
+ DRAWITEMSTRUCT *dis = (DRAWITEMSTRUCT *)item;
+
+ if ( !IsOwnerDrawn() || dis->CtlType != ODT_BUTTON )
+ return wxCheckBoxBase::MSWOnDraw(item);
+
+ // calculate the rectangles for the check mark itself and the label
+ HDC hdc = dis->hDC;
+ RECT& rect = dis->rcItem;
+ RECT rectCheck,
+ rectLabel;
+ rectLabel.top = rect.top + (rect.bottom - rect.top - GetBestSize().y) / 2;
+ rectLabel.bottom = rectLabel.top + GetBestSize().y;
+ const int MARGIN = 3;
+ const int CXMENUCHECK = ::GetSystemMetrics(SM_CXMENUCHECK);
+ // the space between the checkbox and the label is included in the
+ // check-mark bitmap
+ const int checkSize = wxMin(CXMENUCHECK - MARGIN, GetSize().y);
+ rectCheck.top = rect.top + (rect.bottom - rect.top - checkSize) / 2;
+ rectCheck.bottom = rectCheck.top + checkSize;
+
+ const bool isRightAligned = HasFlag(wxALIGN_RIGHT);
+ if ( isRightAligned )
+ {
+ rectLabel.right = rect.right - CXMENUCHECK;
+ rectLabel.left = rect.left;
+
+ rectCheck.left = rectLabel.right + ( CXMENUCHECK + MARGIN - checkSize ) / 2;
+ rectCheck.right = rectCheck.left + checkSize;
+ }
+ else // normal, left-aligned checkbox
+ {
+ rectCheck.left = rect.left + ( CXMENUCHECK - MARGIN - checkSize ) / 2;
+ rectCheck.right = rectCheck.left + checkSize;
+
+ rectLabel.left = rect.left + CXMENUCHECK;
+ rectLabel.right = rect.right;
+ }
+
+ // shall we draw a focus rect?
+ const bool isFocused = m_isPressed || FindFocus() == this;
+
+
+ // draw the checkbox itself
+ wxDCTemp dc(hdc);
+
+ int flags = 0;
+ if ( !IsEnabled() )
+ flags |= wxCONTROL_DISABLED;
+ switch ( Get3StateValue() )
+ {
+ case wxCHK_CHECKED:
+ flags |= wxCONTROL_CHECKED;
+ break;
+
+ case wxCHK_UNDETERMINED:
+ flags |= wxCONTROL_PRESSED;
+ break;
+
+ default:
+ wxFAIL_MSG( wxT("unexpected Get3StateValue() return value") );
+ // fall through
+
+ case wxCHK_UNCHECKED:
+ // no extra styles needed
+ break;
+ }
+
+ if ( wxFindWindowAtPoint(wxGetMousePosition()) == this )
+ flags |= wxCONTROL_CURRENT;
+
+ wxRendererNative::Get().
+ DrawCheckBox(this, dc, wxRectFromRECT(rectCheck), flags);
+
+ // draw the text
+ const wxString& label = GetLabel();
+
+ // first we need to measure it
+ UINT fmt = DT_NOCLIP;
+
+ // drawing underlying doesn't look well with focus rect (and the native
+ // control doesn't do it)
+ if ( isFocused )
+ fmt |= DT_HIDEPREFIX;
+ if ( isRightAligned )
+ fmt |= DT_RIGHT;
+ // TODO: also use DT_HIDEPREFIX if the system is configured so
+
+ // we need to get the label real size first if we have to draw a focus rect
+ // around it
+ if ( isFocused )
+ {
+ RECT oldLabelRect = rectLabel; // needed if right aligned
+
+ if ( !::DrawText(hdc, label.t_str(), label.length(), &rectLabel,
+ fmt | DT_CALCRECT) )
+ {
+ wxLogLastError(wxT("DrawText(DT_CALCRECT)"));
+ }
+
+ if ( isRightAligned )
+ {
+ // move the label rect to the right
+ const int labelWidth = rectLabel.right - rectLabel.left;
+ rectLabel.right = oldLabelRect.right;
+ rectLabel.left = rectLabel.right - labelWidth;
+ }
+ }
+
+ if ( !IsEnabled() )
+ {
+ ::SetTextColor(hdc, ::GetSysColor(COLOR_GRAYTEXT));
+ }
+
+ if ( !::DrawText(hdc, label.t_str(), label.length(), &rectLabel, fmt) )
+ {
+ wxLogLastError(wxT("DrawText()"));
+ }
+
+ // finally draw the focus
+ if ( isFocused )
+ {
+ rectLabel.left--;
+ rectLabel.right++;
+ if ( !::DrawFocusRect(hdc, &rectLabel) )
+ {
+ wxLogLastError(wxT("DrawFocusRect()"));
+ }
+ }
+
+ return true;
+}
projects / wxWidgets.git / blobdiff