Ensure there is valid context for DrawRectangle

[wxWidgets.git] / src / x11 / window.cpp

diff --git a/src/x11/window.cpp b/src/x11/window.cpp
index d7bac60b2aaa9edb6cd06a39bc89f1bfc8ad8a60..fcd2ee3deac78e523f0793b868a147505322616b 100644 (file)
--- a/src/x11/window.cpp
+++ b/src/x11/window.cpp
@@ -56,6 +56,8 @@
     #include "wx/dnd.h"
 #endif
 
+#include "wx/unix/utilsx11.h"
+
 #include "wx/x11/private.h"
 #include "X11/Xutil.h"
 
@@ -148,7 +150,7 @@ bool wxWindowX11::Create(wxWindow *parent, wxWindowID id,
     if (parent->GetInsertIntoMain())
     {
         // wxLogDebug( "Inserted into main: %s", GetName().c_str() );
-        xparent = (Window) parent->GetMainWindow();
+        xparent = (Window) parent->X11GetMainWindow();
     }
 
     // Size (not including the border) must be nonzero (or a Value error results)!
@@ -350,8 +352,6 @@ wxWindowX11::~wxWindowX11()
     if (g_captureWindow == this)
         g_captureWindow = NULL;
 
-    m_isBeingDeleted = true;
-
     DestroyChildren();
 
     if (m_clientWindow != m_mainWindow)
@@ -397,9 +397,12 @@ void wxWindowX11::SetFocus()
     }
 #endif
 
-    if (wxWindowIsVisible(xwindow))
+    XWindowAttributes wa;
+    XGetWindowAttributes(wxGlobalDisplay(), xwindow, &wa);
+
+    if (wa.map_state == IsViewable)
     {
-        wxLogTrace( _T("focus"), _T("wxWindowX11::SetFocus: %s"), GetClassInfo()->GetClassName());
+        wxLogTrace( wxT("focus"), wxT("wxWindowX11::SetFocus: %s"), GetClassInfo()->GetClassName());
         //        XSetInputFocus( wxGlobalDisplay(), xwindow, RevertToParent, CurrentTime );
         XSetInputFocus( wxGlobalDisplay(), xwindow, RevertToNone, CurrentTime );
         m_needsInputFocus = false;
@@ -524,7 +527,9 @@ void wxWindowX11::DoCaptureMouse()
             msg.Printf(wxT("Failed to grab pointer for window %s"), this->GetClassInfo()->GetClassName());
             wxLogDebug(msg);
             if (res == GrabNotViewable)
+            {
                 wxLogDebug( wxT("This is not a viewable window - perhaps not shown yet?") );
+            }
 
             g_captureWindow = NULL;
             return;
@@ -577,7 +582,7 @@ bool wxWindowX11::SetCursor(const wxCursor& cursor)
     wxCHECK_MSG( xwindow, false, wxT("invalid window") );
 
     wxCursor cursorToUse;
-    if (m_cursor.Ok())
+    if (m_cursor.IsOk())
         cursorToUse = m_cursor;
     else
         cursorToUse = *wxSTANDARD_CURSOR;
@@ -1026,7 +1031,7 @@ void wxWindowX11::DoSetSizeHints(int minW, int minH, int maxW, int maxH, int inc
 int wxWindowX11::GetCharHeight() const
 {
     wxFont font(GetFont());
-    wxCHECK_MSG( font.Ok(), 0, wxT("valid window font needed") );
+    wxCHECK_MSG( font.IsOk(), 0, wxT("valid window font needed") );
 
 #if wxUSE_UNICODE
     // There should be an easier way.
@@ -1054,7 +1059,7 @@ int wxWindowX11::GetCharHeight() const
 int wxWindowX11::GetCharWidth() const
 {
     wxFont font(GetFont());
-    wxCHECK_MSG( font.Ok(), 0, wxT("valid window font needed") );
+    wxCHECK_MSG( font.IsOk(), 0, wxT("valid window font needed") );
 
 #if wxUSE_UNICODE
     // There should be an easier way.
@@ -1078,15 +1083,16 @@ int wxWindowX11::GetCharWidth() const
 #endif
 }
 
-void wxWindowX11::GetTextExtent(const wxString& string,
-                                int *x, int *y,
-                                int *descent, int *externalLeading,
-                                const wxFont *theFont) const
+void wxWindowX11::DoGetTextExtent(const wxString& string,
+                                  int *x, int *y,
+                                  int *descent,
+                                  int *externalLeading,
+                                  const wxFont *theFont) const
 {
     wxFont fontToUse = GetFont();
     if (theFont) fontToUse = *theFont;
 
-    wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
+    wxCHECK_RET( fontToUse.IsOk(), wxT("invalid font") );
 
     if (string.empty())
     {
@@ -1101,7 +1107,7 @@ void wxWindowX11::GetTextExtent(const wxString& string,
     PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
     pango_layout_set_font_description(layout, desc);
 
-    const wxCharBuffer data = wxConvUTF8.cWC2MB( string );
+    const wxCharBuffer data = wxConvUTF8.cWC2MB( string.wc_str() );
     pango_layout_set_text(layout, (const char*) data, strlen( (const char*) data ));
 
     PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
@@ -1206,12 +1212,12 @@ void wxWindowX11::SendEraseEvents()
     if (m_clearRegion.IsEmpty()) return;
 
     wxClientDC dc( (wxWindow*)this );
-    dc.SetClippingRegion( m_clearRegion );
+    dc.SetDeviceClippingRegion( m_clearRegion );
 
     wxEraseEvent erase_event( GetId(), &dc );
     erase_event.SetEventObject( this );
 
-    if (!GetEventHandler()->ProcessEvent(erase_event) )
+    if (!HandleWindowEvent(erase_event) )
     {
         Display *xdisplay = wxGlobalDisplay();
         Window xwindow = (Window) GetClientAreaWindow();
@@ -1237,7 +1243,7 @@ void wxWindowX11::SendPaintEvents()
 
     wxPaintEvent paint_event( GetId() );
     paint_event.SetEventObject( this );
-    GetEventHandler()->ProcessEvent( paint_event );
+    HandleWindowEvent( paint_event );
 
     m_updateRegion.Clear();
 
@@ -1266,7 +1272,7 @@ void wxWindowX11::SendNcPaintEvents()
             x = sb->GetPosition().x;
 
             Display *xdisplay = wxGlobalDisplay();
-            Window xwindow = (Window) GetMainWindow();
+            Window xwindow = (Window) X11GetMainWindow();
             Colormap cm = (Colormap) wxTheApp->GetMainColormap( wxGetDisplay() );
             wxColour colour = wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE);
             colour.CalcPixel( (WXColormap) cm );
@@ -1279,7 +1285,7 @@ void wxWindowX11::SendNcPaintEvents()
 
     wxNcPaintEvent nc_paint_event( GetId() );
     nc_paint_event.SetEventObject( this );
-    GetEventHandler()->ProcessEvent( nc_paint_event );
+    HandleWindowEvent( nc_paint_event );
 
     m_updateNcArea = false;
 }
@@ -1300,7 +1306,7 @@ void wxWindowX11::OnSysColourChanged(wxSysColourChangedEvent& event)
         {
             wxSysColourChangedEvent event2;
             event.SetEventObject(win);
-            win->GetEventHandler()->ProcessEvent(event2);
+            win->HandleWindowEvent(event2);
         }
 
         node = node->GetNext();
@@ -1315,10 +1321,7 @@ void wxWindowX11::OnInternalIdle()
     // Update invalidated regions.
     Update();
 
-    // This calls the UI-update mechanism (querying windows for
-    // menu/toolbar/control state information)
-    if (wxUpdateUIEvent::CanUpdate((wxWindow*) this) && IsShown())
-        UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
+    wxWindowBase::OnInternalIdle();
 
     // Set the input focus if couldn't do it before
     if (m_needsInputFocus)
@@ -1407,7 +1410,7 @@ void wxDeleteClientWindowFromTable(Window w)
 // X11-specific accessors
 // ----------------------------------------------------------------------------
 
-WXWindow wxWindowX11::GetMainWindow() const
+WXWindow wxWindowX11::X11GetMainWindow() const
 {
     return m_mainWindow;
 }
@@ -1640,9 +1643,7 @@ bool wxWindowX11::SetForegroundColour(const wxColour& col)
 
 wxWindow *wxGetActiveWindow()
 {
-    // TODO
-    wxFAIL_MSG(wxT("Not implemented"));
-    return NULL;
+    return wxGetTopLevelParent(wxWindow::FindFocus());
 }
 
 /* static */
@@ -1731,7 +1732,7 @@ public:
     wxWinModule()
     {
         // we must be cleaned up before the display is closed
-        AddDependency(wxClassInfo::FindClass(_T("wxX11DisplayModule")));
+        AddDependency(wxClassInfo::FindClass(wxT("wxX11DisplayModule")));
     }
 
     virtual bool OnInit();
@@ -1746,6 +1747,15 @@ IMPLEMENT_DYNAMIC_CLASS(wxWinModule, wxModule)
 bool wxWinModule::OnInit()
 {
     Display *xdisplay = wxGlobalDisplay();
+    if ( !xdisplay )
+    {
+        // This module may be linked into a console program when using
+        // monolithic library and in this case it's perfectly normal not to
+        // have a display, so just return without doing anything and avoid
+        // crashing below.
+        return true;
+    }
+
     int xscreen = DefaultScreen( xdisplay );
     Window xroot = RootWindow( xdisplay, xscreen );
     g_eraseGC = XCreateGC( xdisplay, xroot, 0, NULL );