#endif
#include "wx/msw/private.h"
+#include "wx/msw/private/button.h"
+#include "wx/msw/private/metrics.h"
+
+#if wxUSE_MSGBOX_HOOK
+ #include "wx/fontutil.h"
+#endif
// For MB_TASKMODAL
#ifdef __WXWINCE__
-#include "wx/msw/wince/missing.h"
+ #include "wx/msw/wince/missing.h"
#endif
IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
const HHOOK hhook = (HHOOK)wnd->m_hook;
const LRESULT rc = ::CallNextHookEx(hhook, code, wParam, lParam);
- if ( code == HC_ACTION && lParam )
+ if ( code == HCBT_ACTIVATE )
+ {
+ // we won't need this hook any longer
+ ::UnhookWindowsHookEx(hhook);
+ wnd->m_hook = NULL;
+ HookMap().erase(tid);
+
+ wnd->SetHWND((HWND)wParam);
+
+ // update the labels if necessary: we need to do it before centering
+ // the dialog as this can change its size
+ if ( wnd->HasCustomLabels() )
+ wnd->AdjustButtonLabels();
+
+ // centre the message box on its parent if requested
+ if ( wnd->GetMessageDialogStyle() & wxCENTER )
+ wnd->Center(); // center on parent
+ //else: default behaviour, center on screen
+
+ // there seems to be no reason to leave it set
+ wnd->SetHWND(NULL);
+ }
+
+ return rc;
+}
+
+namespace
+{
+
+// helper of AdjustButtonLabels(): set window position expressed in screen
+// coordinates, whether the window is child or top level
+void MoveWindowToScreenRect(HWND hwnd, RECT rc)
+{
+ if ( const HWND hwndParent = ::GetAncestor(hwnd, GA_PARENT) )
+ {
+ // map to parent window coordinates (notice that a RECT is laid out as
+ // 2 consecutive POINTs)
+ ::MapWindowPoints(HWND_DESKTOP, hwndParent,
+ reinterpret_cast<POINT *>(&rc), 2);
+ }
+
+ ::MoveWindow(hwnd,
+ rc.left, rc.top,
+ rc.right - rc.left, rc.bottom - rc.top,
+ FALSE);
+}
+
+// helper of AdjustButtonLabels(): move the given window by dx
+//
+// works for both child and top level windows
+void OffsetWindow(HWND hwnd, int dx)
+{
+ RECT rc = wxGetWindowRect(hwnd);
+
+ rc.left += dx;
+ rc.right += dx;
+
+ MoveWindowToScreenRect(hwnd, rc);
+}
+
+} // anonymous namespace
+
+void wxMessageDialog::AdjustButtonLabels()
+{
+ // changing the button labels is the easy part but we also need to ensure
+ // that the buttons are big enough for the label strings and increase their
+ // size (and hence the size of the message box itself) if they are not
+
+ // TODO-RTL: check whether this works correctly in RTL
+
+ // the order in this array is the one in which buttons appear in the
+ // message box
+ const static struct ButtonAccessors
{
- const CWPRETSTRUCT * const s = (CWPRETSTRUCT *)lParam;
+ int id;
+ wxString (wxMessageDialog::*getter)() const;
+ }
+ buttons[] =
+ {
+ { IDYES, &wxMessageDialog::GetYesLabel },
+ { IDNO, &wxMessageDialog::GetNoLabel },
+ { IDOK, &wxMessageDialog::GetOKLabel },
+ { IDCANCEL, &wxMessageDialog::GetCancelLabel },
+ };
+
+ // this contains the amount by which we increased the message box width
+ int dx = 0;
- if ( s->message == HCBT_ACTIVATE )
+ const NONCLIENTMETRICS& ncm = wxMSWImpl::GetNonClientMetrics();
+ const wxFont fontMsgBox(wxNativeFontInfo(ncm.lfMessageFont));
+
+ // we want to use this font in GetTextExtent() calls below but we don't
+ // want to send WM_SETFONT to the message box, who knows how is it going to
+ // react to it (right now it doesn't seem to do anything but what if this
+ // changes)
+ wxWindowBase::SetFont(fontMsgBox);
+
+ for ( unsigned n = 0; n < WXSIZEOF(buttons); n++ )
+ {
+ const HWND hwndBtn = ::GetDlgItem(GetHwnd(), buttons[n].id);
+ if ( !hwndBtn )
+ continue; // it's ok, not all buttons are always present
+
+ const wxString label = (this->*buttons[n].getter)();
+ const wxSize sizeLabel = wxWindowBase::GetTextExtent(label);
+
+ // check if the button is big enough for this label
+ RECT rc = wxGetWindowRect(hwndBtn);
+ const int widthOld = rc.right - rc.left;
+ const int widthNew = wxMSWButton::GetFittingSize(this, sizeLabel).x;
+ const int dw = widthNew - widthOld;
+ if ( dw > 0 )
{
- // we won't need this hook any longer
- ::UnhookWindowsHookEx(hhook);
- wnd->m_hook = NULL;
- HookMap().erase(tid);
+ // we need to resize the button
+ rc.right += dw;
+ MoveWindowToScreenRect(hwndBtn, rc);
- if ( wnd->GetMessageDialogStyle() & wxCENTER )
+ // and also move all the other buttons
+ for ( unsigned m = n + 1; m < WXSIZEOF(buttons); m++ )
{
- wnd->SetHWND(s->hwnd);
- wnd->Center(); // center on parent
- wnd->SetHWND(NULL);
+ const HWND hwndBtnNext = ::GetDlgItem(GetHwnd(), buttons[m].id);
+ if ( hwndBtnNext )
+ OffsetWindow(hwndBtnNext, dw);
}
- //else: default behaviour, center on screen
+
+ dx += dw;
}
+
+ ::SetWindowText(hwndBtn, label.wx_str());
}
- return rc;
+
+ // resize the message box itself if needed
+ if ( dx )
+ OffsetWindow(GetHwnd(), dx);
+
+ // surprisingly, we don't need to resize the static text control, it seems
+ // to adjust itself to the new size, at least under Windows 2003
+ // (TODO: test if this happens on older Windows versions)
}
#endif // wxUSE_MSGBOX_HOOK
#if wxUSE_MSGBOX_HOOK
// install the hook if we need to position the dialog in a non-default way
- if ( wxStyle & wxCENTER )
+ // or change the labels
+ if ( (wxStyle & wxCENTER) || HasCustomLabels() )
{
const DWORD tid = ::GetCurrentThreadId();
- m_hook = ::SetWindowsHookEx(WH_CALLWNDPROCRET,
+ m_hook = ::SetWindowsHookEx(WH_CBT,
&wxMessageDialog::HookFunction, NULL, tid);
HookMap()[tid] = this;
}
projects / wxWidgets.git / blobdiff