+ ProcessCommand(event);
+}
+
+// ----------------------------------------------------------------------------
+// event/message handlers
+// ----------------------------------------------------------------------------
+
+bool wxButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
+{
+ bool processed = false;
+ switch ( param )
+ {
+ // NOTE: Apparently older versions (NT 4?) of the common controls send
+ // BN_DOUBLECLICKED but not a second BN_CLICKED for owner-drawn
+ // buttons, so in order to send two EVT_BUTTON events we should
+ // catch both types. Currently (Feb 2003) up-to-date versions of
+ // win98, win2k and winXP all send two BN_CLICKED messages for
+ // all button types, so we don't catch BN_DOUBLECLICKED anymore
+ // in order to not get 3 EVT_BUTTON events. If this is a problem
+ // then we need to figure out which version of the comctl32 changed
+ // this behaviour and test for it.
+
+ case 1: // message came from an accelerator
+ case BN_CLICKED: // normal buttons send this
+ processed = SendClickEvent();
+ break;
+ }
+
+ return processed;
+}
+
+WXLRESULT wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+ // when we receive focus, we want to temporarily become the default button in
+ // our parent panel so that pressing "Enter" would activate us -- and when
+ // losing it we should restore the previous default button as well
+ if ( nMsg == WM_SETFOCUS )
+ {
+ SetTmpDefault();
+
+ // let the default processing take place too
+ }
+ else if ( nMsg == WM_KILLFOCUS )
+ {
+ UnsetTmpDefault();
+ }
+ else if ( nMsg == WM_LBUTTONDBLCLK )
+ {
+ // emulate a click event to force an owner-drawn button to change its
+ // appearance - without this, it won't do it
+ (void)wxControl::MSWWindowProc(WM_LBUTTONDOWN, wParam, lParam);
+
+ // and continue with processing the message normally as well
+ }
+#if wxUSE_UXTHEME
+ else if ( nMsg == WM_THEMECHANGED )
+ {
+ // need to recalculate the best size here
+ // as the theme size might have changed
+ InvalidateBestSize();
+ }
+ else if ( wxUxThemeEngine::GetIfActive() )
+ {
+ // we need to Refresh() if mouse has entered or left window
+ // so we can update the hot tracking state
+ // must use m_mouseInWindow here instead of IsMouseInWindow()
+ // since we need to know the first time the mouse enters the window
+ // and IsMouseInWindow() would return true in this case
+ if ( ( nMsg == WM_MOUSEMOVE && !m_mouseInWindow ) ||
+ nMsg == WM_MOUSELEAVE )
+ {
+ Refresh();
+ }
+ }
+#endif // wxUSE_UXTHEME
+
+ // let the base class do all real processing
+ return wxControl::MSWWindowProc(nMsg, wParam, lParam);
+}
+
+// ----------------------------------------------------------------------------
+// owner-drawn buttons support
+// ----------------------------------------------------------------------------
+
+// drawing helpers
+
+static void DrawButtonText(HDC hdc,
+ RECT *pRect,
+ const wxString& text,
+ COLORREF col,
+ int flags)
+{
+ COLORREF colOld = SetTextColor(hdc, col);
+ int modeOld = SetBkMode(hdc, TRANSPARENT);
+
+ // center text horizontally in any case
+ flags |= DT_CENTER;
+
+ if ( text.find(_T('\n')) != wxString::npos )
+ {
+ // draw multiline label
+
+ // first we need to compute its bounding rect
+ RECT rc;
+ ::CopyRect(&rc, pRect);
+ ::DrawText(hdc, text.wx_str(), text.length(), &rc,
+ DT_CENTER | DT_CALCRECT);
+
+ // now center this rect inside the entire button area
+ const LONG w = rc.right - rc.left;
+ const LONG h = rc.bottom - rc.top;
+ rc.left = (pRect->right - pRect->left)/2 - w/2;
+ rc.right = rc.left+w;
+ rc.top = (pRect->bottom - pRect->top)/2 - h/2;
+ rc.bottom = rc.top+h;
+
+ ::DrawText(hdc, text.wx_str(), text.length(), &rc, flags);
+ }
+ else // single line label
+ {
+ // centre text vertically too (notice that we must have DT_SINGLELINE
+ // for DT_VCENTER to work)
+ ::DrawText(hdc, text.wx_str(), text.length(), pRect,
+ flags | DT_SINGLELINE | DT_VCENTER);
+ }
+
+ SetBkMode(hdc, modeOld);
+ SetTextColor(hdc, colOld);
+}
+
+static void DrawRect(HDC hdc, const RECT& r)
+{
+ wxDrawLine(hdc, r.left, r.top, r.right, r.top);
+ wxDrawLine(hdc, r.right, r.top, r.right, r.bottom);
+ wxDrawLine(hdc, r.right, r.bottom, r.left, r.bottom);
+ wxDrawLine(hdc, r.left, r.bottom, r.left, r.top);
+}
+
+void wxButton::MakeOwnerDrawn()
+{
+ long style = GetWindowLong(GetHwnd(), GWL_STYLE);
+ if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
+ {
+ // make it so
+ style |= BS_OWNERDRAW;
+ SetWindowLong(GetHwnd(), GWL_STYLE, style);
+ }
+}
+
+bool wxButton::SetBackgroundColour(const wxColour &colour)
+{
+ if ( !wxControl::SetBackgroundColour(colour) )
+ {
+ // nothing to do
+ return false;
+ }
projects / wxWidgets.git / blobdiff