]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/popupcmn.cpp
fix memory leak in wxScreenDC, fixes #13249
[wxWidgets.git] / src / common / popupcmn.cpp
index 788e0bdffe933a528c6edd409bc5cfb4213ca148..f4b812330e39a3352990b41dd7cb979c6cd2d188 100644 (file)
@@ -6,7 +6,7 @@
 // Created:     06.01.01
 // RCS-ID:      $Id$
 // Copyright:   (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// License:     wxWindows licence
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 #include "wx/popupwin.h"
 
 #ifndef WX_PRECOMP
-    #include "wx/combobox.h"        // wxComboControl
+    #include "wx/combobox.h"        // wxComboCtrl
     #include "wx/app.h"             // wxPostEvent
     #include "wx/log.h"
 #endif //WX_PRECOMP
 
+#include "wx/display.h"
+#include "wx/recguard.h"
+
 #ifdef __WXUNIVERSAL__
     #include "wx/univ/renderer.h"
+    #include "wx/scrolbar.h"
 #endif // __WXUNIVERSAL__
 
 #ifdef __WXGTK__
     #include <gtk/gtk.h>
-#endif
-#ifdef __WXX11__
-#include "wx/x11/private.h"
+    #if GTK_CHECK_VERSION(2,0,0)
+        #include "wx/gtk/private/gtk2-compat.h"
+    #else
+        #define gtk_widget_get_window(x) x->window
+    #endif
+#elif defined(__WXMSW__)
+    #include "wx/msw/private.h"
+#elif defined(__WXX11__)
+    #include "wx/x11/private.h"
 #endif
 
 IMPLEMENT_DYNAMIC_CLASS(wxPopupWindow, wxWindow)
@@ -71,7 +81,7 @@ private:
     wxPopupTransientWindow *m_popup;
 
     DECLARE_EVENT_TABLE()
-    DECLARE_NO_COPY_CLASS(wxPopupWindowHandler)
+    wxDECLARE_NO_COPY_CLASS(wxPopupWindowHandler);
 };
 
 class wxPopupFocusHandler : public wxEvtHandler
@@ -81,13 +91,13 @@ public:
 
 protected:
     void OnKillFocus(wxFocusEvent& event);
-    void OnKeyDown(wxKeyEvent& event);
+    void OnChar(wxKeyEvent& event);
 
 private:
     wxPopupTransientWindow *m_popup;
 
     DECLARE_EVENT_TABLE()
-    DECLARE_NO_COPY_CLASS(wxPopupFocusHandler)
+    wxDECLARE_NO_COPY_CLASS(wxPopupFocusHandler);
 };
 
 // ----------------------------------------------------------------------------
@@ -100,11 +110,11 @@ END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(wxPopupFocusHandler, wxEvtHandler)
     EVT_KILL_FOCUS(wxPopupFocusHandler::OnKillFocus)
-    EVT_KEY_DOWN(wxPopupFocusHandler::OnKeyDown)
+    EVT_CHAR(wxPopupFocusHandler::OnChar)
 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(wxPopupTransientWindow, wxPopupWindow)
-#ifdef __WXMSW__
+#if defined( __WXMSW__ ) || ( defined( __WXMAC__ ) && wxOSX_USE_CARBON )
     EVT_IDLE(wxPopupTransientWindow::OnIdle)
 #endif
 END_EVENT_TABLE()
@@ -130,13 +140,31 @@ bool wxPopupWindowBase::Create(wxWindow* WXUNUSED(parent), int WXUNUSED(flags))
 void wxPopupWindowBase::Position(const wxPoint& ptOrigin,
                                  const wxSize& size)
 {
-    wxSize sizeScreen = wxGetDisplaySize(),
-           sizeSelf = GetSize();
+    // determine the position and size of the screen we clamp the popup to
+    wxPoint posScreen;
+    wxSize sizeScreen;
+
+    const int displayNum = wxDisplay::GetFromPoint(ptOrigin);
+    if ( displayNum != wxNOT_FOUND )
+    {
+        const wxRect rectScreen = wxDisplay(displayNum).GetGeometry();
+        posScreen = rectScreen.GetPosition();
+        sizeScreen = rectScreen.GetSize();
+    }
+    else // outside of any display?
+    {
+        // just use the primary one then
+        posScreen = wxPoint(0, 0);
+        sizeScreen = wxGetDisplaySize();
+    }
+
+
+    const wxSize sizeSelf = GetSize();
 
     // is there enough space to put the popup below the window (where we put it
     // by default)?
     wxCoord y = ptOrigin.y + size.y;
-    if ( y + sizeSelf.y > sizeScreen.y )
+    if ( y + sizeSelf.y > posScreen.y + sizeScreen.y )
     {
         // check if there is enough space above
         if ( ptOrigin.y > sizeSelf.y )
@@ -148,8 +176,19 @@ void wxPopupWindowBase::Position(const wxPoint& ptOrigin,
     }
 
     // now check left/right too
-    wxCoord x = ptOrigin.x + size.x;
-    if ( x + sizeSelf.x > sizeScreen.x )
+    wxCoord x = ptOrigin.x;
+
+    if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
+    {
+        // shift the window to the left instead of the right.
+        x -= size.x;
+        x -= sizeSelf.x;        // also shift it by window width.
+    }
+    else
+        x += size.x;
+
+
+    if ( x + sizeSelf.x > posScreen.x + sizeScreen.x )
     {
         // check if there is enough space to the left
         if ( ptOrigin.x > sizeSelf.x )
@@ -170,7 +209,7 @@ void wxPopupWindowBase::Position(const wxPoint& ptOrigin,
 void wxPopupTransientWindow::Init()
 {
     m_child =
-    m_focus = (wxWindow *)NULL;
+    m_focus = NULL;
 
     m_handlerFocus = NULL;
     m_handlerPopup = NULL;
@@ -237,7 +276,7 @@ void wxPopupTransientWindow::Popup(wxWindow *winFocus)
 
     Show();
 
-    // There is is a problem if these are still in use
+    // There is a problem if these are still in use
     wxASSERT(!m_handlerFocus || !m_handlerFocus->GetNextHandler());
     wxASSERT(!m_handlerPopup || !m_handlerPopup->GetNextHandler());
 
@@ -246,10 +285,18 @@ void wxPopupTransientWindow::Popup(wxWindow *winFocus)
 
     m_child->PushEventHandler(m_handlerPopup);
 
-    m_focus = winFocus ? winFocus : this;
-    m_focus->SetFocus();
+#if defined(__WXMSW__)
+    // Focusing on child of popup window does not work on MSW unless WS_POPUP
+    // style is set. We do not even want to try to set the focus, as it may
+    // provoke errors on some Windows versions (Vista and later).
+    if ( ::GetWindowLong(GetHwnd(), GWL_STYLE) & WS_POPUP )
+#endif
+    {
+        m_focus = winFocus ? winFocus : this;
+        m_focus->SetFocus();
+    }
 
-#ifdef __WXMSW__
+#if defined( __WXMSW__ ) || (defined( __WXMAC__) && wxOSX_USE_CARBON)
     // MSW doesn't allow to set focus to the popup window, but we need to
     // subclass the window which has the focus, and not winFocus passed in or
     // otherwise everything else breaks down
@@ -287,7 +334,7 @@ bool wxPopupTransientWindow::Show( bool show )
     }
 #endif
 
-#ifdef __WXMSW__
+#if defined( __WXMSW__ ) || defined( __WXMAC__)
     if (!show && m_child && m_child->HasCapture())
     {
         m_child->ReleaseMouse();
@@ -301,14 +348,14 @@ bool wxPopupTransientWindow::Show( bool show )
     {
         gtk_grab_add( m_widget );
 
-        gdk_pointer_grab( m_widget->window, TRUE,
+        gdk_pointer_grab( gtk_widget_get_window(m_widget), true,
                           (GdkEventMask)
                             (GDK_BUTTON_PRESS_MASK |
                              GDK_BUTTON_RELEASE_MASK |
                              GDK_POINTER_MOTION_HINT_MASK |
                              GDK_POINTER_MOTION_MASK),
-                          (GdkWindow *) NULL,
-                          (GdkCursor *) NULL,
+                          NULL,
+                          NULL,
                           (guint32)GDK_CURRENT_TIME );
     }
 #endif
@@ -329,7 +376,7 @@ bool wxPopupTransientWindow::Show( bool show )
     }
 #endif
 
-#ifdef __WXMSW__
+#if defined( __WXMSW__ ) || defined( __WXMAC__)
     if (show && m_child)
     {
         // Assume that the mouse is outside the popup to begin with
@@ -363,7 +410,7 @@ bool wxPopupTransientWindow::ProcessLeftDown(wxMouseEvent& WXUNUSED(event))
     return false;
 }
 
-#ifdef __WXMSW__
+#if defined( __WXMSW__ ) || ( defined( __WXMAC__ ) && wxOSX_USE_CARBON )
 void wxPopupTransientWindow::OnIdle(wxIdleEvent& event)
 {
     event.Skip();
@@ -373,7 +420,7 @@ void wxPopupTransientWindow::OnIdle(wxIdleEvent& event)
         wxPoint pos = ScreenToClient(wxGetMousePosition());
         wxRect rect(GetSize());
 
-        if ( rect.Inside(pos) )
+        if ( rect.Contains(pos) )
         {
             if ( m_child->HasCapture() )
             {
@@ -402,13 +449,13 @@ BEGIN_EVENT_TABLE(wxPopupComboWindow, wxPopupTransientWindow)
     EVT_KEY_DOWN(wxPopupComboWindow::OnKeyDown)
 END_EVENT_TABLE()
 
-wxPopupComboWindow::wxPopupComboWindow(wxComboControl *parent)
+wxPopupComboWindow::wxPopupComboWindow(wxComboCtrl *parent)
                   : wxPopupTransientWindow(parent)
 {
     m_combo = parent;
 }
 
-bool wxPopupComboWindow::Create(wxComboControl *parent)
+bool wxPopupComboWindow::Create(wxComboCtrl *parent)
 {
     m_combo = parent;
 
@@ -436,12 +483,12 @@ void wxPopupComboWindow::PositionNearCombo()
 
 void wxPopupComboWindow::OnDismiss()
 {
-    m_combo->OnDismiss();
+    m_combo->OnPopupDismiss(true);
 }
 
 void wxPopupComboWindow::OnKeyDown(wxKeyEvent& event)
 {
-    m_combo->ProcessEvent(event);
+    m_combo->ProcessWindowEvent(event);
 }
 
 #endif // wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
@@ -462,10 +509,10 @@ void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
     wxPoint pos = event.GetPosition();
 
     // in non-Univ ports the system manages scrollbars for us
-#ifdef __WXUNIVERSAL__
+#if defined(__WXUNIVERSAL__) && wxUSE_SCROLLBAR
     // scrollbar on which the click occurred
     wxWindow *sbar = NULL;
-#endif // __WXUNIVERSAL__
+#endif // __WXUNIVERSAL__ && wxUSE_SCROLLBAR
 
     wxWindow *win = (wxWindow *)event.GetEventObject();
 
@@ -493,12 +540,12 @@ void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
                     winUnder->ScreenToClient(&event2.m_x, &event2.m_y);
 
                     event2.SetEventObject(winUnder);
-                    wxPostEvent(winUnder, event2);
+                    wxPostEvent(winUnder->GetEventHandler(), event2);
                 }
             }
             break;
 
-#ifdef __WXUNIVERSAL__
+#if defined(__WXUNIVERSAL__) && wxUSE_SCROLLBAR
         case wxHT_WINDOW_HORZ_SCROLLBAR:
             sbar = win->GetScrollbar(wxHORIZONTAL);
             break;
@@ -506,11 +553,11 @@ void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
         case wxHT_WINDOW_VERT_SCROLLBAR:
             sbar = win->GetScrollbar(wxVERTICAL);
             break;
-#endif // __WXUNIVERSAL__
+#endif // __WXUNIVERSAL__ && wxUSE_SCROLLBAR
 
         default:
             // forgot to update the switch after adding a new hit test code?
-            wxFAIL_MSG( _T("unexpected HitTest() return value") );
+            wxFAIL_MSG( wxT("unexpected HitTest() return value") );
             // fall through
 
         case wxHT_WINDOW_CORNER:
@@ -523,7 +570,7 @@ void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
             break;
     }
 
-#ifdef __WXUNIVERSAL__
+#if defined(__WXUNIVERSAL__) && wxUSE_SCROLLBAR
     if ( sbar )
     {
         // translate the event coordinates to the scrollbar ones
@@ -536,7 +583,7 @@ void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
 
         (void)sbar->GetEventHandler()->ProcessEvent(event2);
     }
-#endif // __WXUNIVERSAL__
+#endif // __WXUNIVERSAL__ && wxUSE_SCROLLBAR
 }
 
 // ----------------------------------------------------------------------------
@@ -558,10 +605,20 @@ void wxPopupFocusHandler::OnKillFocus(wxFocusEvent& event)
     m_popup->DismissAndNotify();
 }
 
-void wxPopupFocusHandler::OnKeyDown(wxKeyEvent& event)
+void wxPopupFocusHandler::OnChar(wxKeyEvent& event)
 {
+    // we can be associated with the popup itself in which case we should avoid
+    // infinite recursion
+    static int s_inside;
+    wxRecursionGuard guard(s_inside);
+    if ( guard.IsInside() )
+    {
+        event.Skip();
+        return;
+    }
+
     // let the window have it first, it might process the keys
-    if ( !m_popup->ProcessEvent(event) )
+    if ( !m_popup->GetEventHandler()->ProcessEvent(event) )
     {
         // by default, dismiss the popup
         m_popup->DismissAndNotify();