/////////////////////////////////////////////////////////////////////////////
-// Name: common/toplvcmn.cpp
+// Name: src/common/toplvcmn.cpp
// Purpose: common (for all platforms) wxTopLevelWindow functions
// Author: Julian Smart, Vadim Zeitlin
// Created: 01/02/97
-// Id: $Id$
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Copyright: (c) 1998 Robert Roebling and Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "toplevelbase.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
+#include "wx/toplevel.h"
+
#ifndef WX_PRECOMP
- #include "wx/toplevel.h"
#include "wx/dcclient.h"
+ #include "wx/app.h"
#endif // WX_PRECOMP
-#include "wx/evtloop.h"
+#include "wx/display.h"
// ----------------------------------------------------------------------------
// event table
// implementation
// ============================================================================
-// FIXME: some platforms don't have wxTopLevelWindow yet
-#ifdef wxTopLevelWindowNative
- IMPLEMENT_DYNAMIC_CLASS(wxTopLevelWindow, wxWindow)
-#endif
+IMPLEMENT_ABSTRACT_CLASS(wxTopLevelWindow, wxWindow)
// ----------------------------------------------------------------------------
// construction/destruction
wxTopLevelWindowBase::wxTopLevelWindowBase()
{
+ // Unlike windows, top level windows are created hidden by default.
+ m_isShown = false;
}
wxTopLevelWindowBase::~wxTopLevelWindowBase()
{
- // this destructor is required for Darwin
+ // don't let wxTheApp keep any stale pointers to us
+ if ( wxTheApp && wxTheApp->GetTopWindow() == this )
+ wxTheApp->SetTopWindow(NULL);
+
+ wxTopLevelWindows.DeleteObject(this);
+
+ // delete any our top level children which are still pending for deletion
+ // immediately: this could happen if a child (e.g. a temporary dialog
+ // created with this window as parent) was Destroy()'d) while this window
+ // was deleted directly (with delete, or maybe just because it was created
+ // on the stack) immediately afterwards and before the child TLW was really
+ // destroyed -- not destroying it now would leave it alive with a dangling
+ // parent pointer and result in a crash later
+ for ( wxObjectList::iterator i = wxPendingDelete.begin();
+ i != wxPendingDelete.end();
+ )
+ {
+ wxWindow * const win = wxDynamicCast(*i, wxWindow);
+ if ( win && win->GetParent() == this )
+ {
+ wxPendingDelete.erase(i);
+
+ delete win;
+
+ // deleting it invalidated the list (and not only one node because
+ // it could have resulted in deletion of other objects to)
+ i = wxPendingDelete.begin();
+ }
+ else
+ {
+ ++i;
+ }
+ }
+
+ if ( IsLastBeforeExit() )
+ {
+ // no other (important) windows left, quit the app
+ wxTheApp->ExitMainLoop();
+ }
}
bool wxTopLevelWindowBase::Destroy()
if ( !wxPendingDelete.Member(this) )
wxPendingDelete.Append(this);
- return TRUE;
+ // normally we want to hide the window immediately so that it doesn't get
+ // stuck on the screen while it's being destroyed, however we shouldn't
+ // hide the last visible window as then we might not get any idle events
+ // any more as no events will be sent to the hidden window and without idle
+ // events we won't prune wxPendingDelete list and the application won't
+ // terminate
+ for ( wxWindowList::const_iterator i = wxTopLevelWindows.begin(),
+ end = wxTopLevelWindows.end();
+ i != end;
+ ++i )
+ {
+ wxTopLevelWindow * const win = static_cast<wxTopLevelWindow *>(*i);
+ if ( win != this && win->IsShown() )
+ {
+ // there remains at least one other visible TLW, we can hide this
+ // one
+ Hide();
+
+ break;
+ }
+ }
+
+ return true;
+}
+
+bool wxTopLevelWindowBase::IsLastBeforeExit() const
+{
+ // first of all, automatically exiting the app on last window close can be
+ // completely disabled at wxTheApp level
+ if ( !wxTheApp || !wxTheApp->GetExitOnFrameDelete() )
+ return false;
+
+ wxWindowList::const_iterator i;
+ const wxWindowList::const_iterator end = wxTopLevelWindows.end();
+
+ // then decide whether we should exit at all
+ for ( i = wxTopLevelWindows.begin(); i != end; ++i )
+ {
+ wxTopLevelWindow * const win = static_cast<wxTopLevelWindow *>(*i);
+ if ( win->ShouldPreventAppExit() )
+ {
+ // there remains at least one important TLW, don't exit
+ return false;
+ }
+ }
+
+ // if yes, close all the other windows: this could still fail
+ for ( i = wxTopLevelWindows.begin(); i != end; ++i )
+ {
+ // don't close twice the windows which are already marked for deletion
+ wxTopLevelWindow * const win = static_cast<wxTopLevelWindow *>(*i);
+ if ( !wxPendingDelete.Member(win) && !win->Close() )
+ {
+ // one of the windows refused to close, don't exit
+ //
+ // NB: of course, by now some other windows could have been already
+ // closed but there is really nothing we can do about it as we
+ // have no way just to ask the window if it can close without
+ // forcing it to do it
+ return false;
+ }
+ }
+
+ return true;
+}
+
+// ----------------------------------------------------------------------------
+// wxTopLevelWindow geometry
+// ----------------------------------------------------------------------------
+
+void wxTopLevelWindowBase::SetMinSize(const wxSize& minSize)
+{
+ SetSizeHints(minSize, GetMaxSize());
+}
+
+void wxTopLevelWindowBase::SetMaxSize(const wxSize& maxSize)
+{
+ SetSizeHints(GetMinSize(), maxSize);
+}
+
+void wxTopLevelWindowBase::GetRectForTopLevelChildren(int *x, int *y, int *w, int *h)
+{
+ GetPosition(x,y);
+ GetSize(w,h);
+}
+
+/* static */
+wxSize wxTopLevelWindowBase::GetDefaultSize()
+{
+ wxSize size = wxGetClientDisplayRect().GetSize();
+#ifndef __WXOSX_IPHONE__
+ // create proportionally bigger windows on small screens
+ if ( size.x >= 1024 )
+ size.x = 400;
+ else if ( size.x >= 800 )
+ size.x = 300;
+ else if ( size.x >= 320 )
+ size.x = 240;
+
+ if ( size.y >= 768 )
+ size.y = 250;
+ else if ( size.y > 200 )
+ {
+ size.y *= 2;
+ size.y /= 3;
+ }
+#endif
+ return size;
+}
+
+void wxTopLevelWindowBase::DoCentre(int dir)
+{
+ // on some platforms centering top level windows is impossible
+ // because they are always maximized by guidelines or limitations
+ //
+ // and centering a maximized window doesn't make sense as its position
+ // can't change
+ if ( IsAlwaysMaximized() || IsMaximized() )
+ return;
+
+ // we need the display rect anyhow so store it first: notice that we should
+ // be centered on the same display as our parent window, the display of
+ // this window itself is not really defined yet
+ int nDisplay = wxDisplay::GetFromWindow(GetParent() ? GetParent() : this);
+ wxDisplay dpy(nDisplay == wxNOT_FOUND ? 0 : nDisplay);
+ const wxRect rectDisplay(dpy.GetClientArea());
+
+ // what should we centre this window on?
+ wxRect rectParent;
+ if ( !(dir & wxCENTRE_ON_SCREEN) && GetParent() )
+ {
+ // centre on parent window: notice that we need screen coordinates for
+ // positioning this TLW
+ rectParent = GetParent()->GetScreenRect();
+
+ // if the parent is entirely off screen (happens at least with MDI
+ // parent frame under Mac but could happen elsewhere too if the frame
+ // was hidden/moved away for some reason), don't use it as otherwise
+ // this window wouldn't be visible at all
+ if ( !rectParent.Intersects(rectDisplay) )
+ {
+ // just centre on screen then
+ rectParent = rectDisplay;
+ }
+ }
+ else
+ {
+ // we were explicitly asked to centre this window on the entire screen
+ // or if we have no parent anyhow and so can't centre on it
+ rectParent = rectDisplay;
+ }
+
+ if ( !(dir & wxBOTH) )
+ dir |= wxBOTH; // if neither is specified, center in both directions
+
+ // the new window rect candidate
+ wxRect rect = GetRect().CentreIn(rectParent, dir & ~wxCENTRE_ON_SCREEN);
+
+ // we don't want to place the window off screen if Centre() is called as
+ // this is (almost?) never wanted and it would be very difficult to prevent
+ // it from happening from the user code if we didn't check for it here
+ if ( !rectDisplay.Contains(rect.GetTopLeft()) )
+ {
+ // move the window just enough to make the corner visible
+ int dx = rectDisplay.GetLeft() - rect.GetLeft();
+ int dy = rectDisplay.GetTop() - rect.GetTop();
+ rect.Offset(dx > 0 ? dx : 0, dy > 0 ? dy : 0);
+ }
+
+ if ( !rectDisplay.Contains(rect.GetBottomRight()) )
+ {
+ // do the same for this corner too
+ int dx = rectDisplay.GetRight() - rect.GetRight();
+ int dy = rectDisplay.GetBottom() - rect.GetBottom();
+ rect.Offset(dx < 0 ? dx : 0, dy < 0 ? dy : 0);
+ }
+
+ // the window top left and bottom right corner are both visible now and
+ // although the window might still be not entirely on screen (with 2
+ // staggered displays for example) we wouldn't be able to improve the
+ // layout much in such case, so we stop here
+
+ // -1 could be valid coordinate here if there are several displays
+ SetSize(rect, wxSIZE_ALLOW_MINUS_ONE);
}
// ----------------------------------------------------------------------------
wxWindow::DoClientToScreen(x, y);
}
+bool wxTopLevelWindowBase::IsAlwaysMaximized() const
+{
+#if defined(__SMARTPHONE__) || defined(__POCKETPC__)
+ return true;
+#else
+ return false;
+#endif
+}
+
+// ----------------------------------------------------------------------------
+// icons
+// ----------------------------------------------------------------------------
+
+wxIcon wxTopLevelWindowBase::GetIcon() const
+{
+ return m_icons.IsEmpty() ? wxIcon() : m_icons.GetIcon( -1 );
+}
+
+void wxTopLevelWindowBase::SetIcon(const wxIcon& icon)
+{
+ // passing wxNullIcon to SetIcon() is possible (it means that we shouldn't
+ // have any icon), but adding an invalid icon to wxIconBundle is not
+ wxIconBundle icons;
+ if ( icon.IsOk() )
+ icons.AddIcon(icon);
+
+ SetIcons(icons);
+}
// ----------------------------------------------------------------------------
// event handlers
// default resizing behaviour - if only ONE subwindow, resize to fill the
// whole client area
-void wxTopLevelWindowBase::OnSize(wxSizeEvent& WXUNUSED(event))
+void wxTopLevelWindowBase::DoLayout()
{
- // if we're using constraints - do use them
-#if wxUSE_CONSTRAINTS
+ // We are called during the window destruction several times, e.g. as
+ // wxFrame tries to adjust to its tool/status bars disappearing. But
+ // actually doing the layout is pretty useless in this case as the window
+ // will disappear anyhow -- so just don't bother.
+ if ( IsBeingDeleted() )
+ return;
+
+
+ // if we're using constraints or sizers - do use them
if ( GetAutoLayout() )
{
Layout();
}
else
-#endif // wxUSE_CONSTRAINTS
{
// do we have _exactly_ one child?
- wxWindow *child = (wxWindow *)NULL;
- for ( wxWindowList::Node *node = GetChildren().GetFirst();
+ wxWindow *child = NULL;
+ for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
node;
node = node->GetNext() )
{
{
if ( child )
{
-#ifdef __WXPM__
- AlterChildPos();
-#endif
return; // it's our second subwindow - nothing to do
}
}
// do we have any children at all?
- if ( child )
+ if ( child && child->IsShown() )
{
// exactly one child - set it's size to fill the whole frame
int clientW, clientH;
DoGetClientSize(&clientW, &clientH);
- // for whatever reasons, wxGTK wants to have a small offset - it
- // probably looks better with it?
-#ifdef __WXGTK__
- static const int ofs = 1;
-#else
- static const int ofs = 0;
-#endif
-
- child->SetSize(ofs, ofs, clientW - 2*ofs, clientH - 2*ofs);
-#ifdef __WXPM__
- UpdateInternalSize(child, clientH);
-#endif
+ child->SetSize(0, 0, clientW, clientH);
}
}
}
return GetEventHandler()->ProcessEvent(event);
}
-// ----------------------------------------------------------------------------
-// interactive manipulation
-// ----------------------------------------------------------------------------
-
-#ifdef __WXUNIVERSAL__
-
-#define wxINTERACTIVE_RESIZE_DIR \
- (wxINTERACTIVE_RESIZE_W | wxINTERACTIVE_RESIZE_E | \
- wxINTERACTIVE_RESIZE_S | wxINTERACTIVE_RESIZE_N)
-
-struct wxInteractiveMoveData
-{
- wxTopLevelWindowBase *m_window;
- wxEventLoop *m_evtLoop;
- int m_flags;
- wxRect m_rect;
- wxRect m_rectOrig;
- wxPoint m_pos;
- wxSize m_minSize, m_maxSize;
-};
-
-class wxInteractiveMoveHandler : public wxEvtHandler
-{
-public:
- wxInteractiveMoveHandler(wxInteractiveMoveData& data) : m_data(data) {}
-
-private:
- DECLARE_EVENT_TABLE()
- void OnMouseMove(wxMouseEvent& event);
- void OnMouseDown(wxMouseEvent& event);
- void OnMouseUp(wxMouseEvent& event);
- void OnKeyDown(wxKeyEvent& event);
-
- wxInteractiveMoveData& m_data;
-};
-
-BEGIN_EVENT_TABLE(wxInteractiveMoveHandler, wxEvtHandler)
- EVT_MOTION(wxInteractiveMoveHandler::OnMouseMove)
- EVT_LEFT_DOWN(wxInteractiveMoveHandler::OnMouseDown)
- EVT_LEFT_UP(wxInteractiveMoveHandler::OnMouseUp)
- EVT_KEY_DOWN(wxInteractiveMoveHandler::OnKeyDown)
-END_EVENT_TABLE()
-
-
-static inline LINKAGEMODE
-void wxApplyResize(wxInteractiveMoveData& data, const wxPoint& diff)
-{
- if ( data.m_flags & wxINTERACTIVE_RESIZE_W )
- {
- data.m_rect.x += diff.x;
- data.m_rect.width -= diff.x;
- }
- else if ( data.m_flags & wxINTERACTIVE_RESIZE_E )
- {
- data.m_rect.width += diff.x;
- }
- if ( data.m_flags & wxINTERACTIVE_RESIZE_N )
- {
- data.m_rect.y += diff.y;
- data.m_rect.height -= diff.y;
- }
- else if ( data.m_flags & wxINTERACTIVE_RESIZE_S )
- {
- data.m_rect.height += diff.y;
- }
-
- if ( data.m_minSize.x != -1 && data.m_rect.width < data.m_minSize.x )
- {
- if ( data.m_flags & wxINTERACTIVE_RESIZE_W )
- data.m_rect.x -= data.m_minSize.x - data.m_rect.width;
- data.m_rect.width = data.m_minSize.x;
- }
- if ( data.m_maxSize.x != -1 && data.m_rect.width > data.m_maxSize.x )
- {
- if ( data.m_flags & wxINTERACTIVE_RESIZE_W )
- data.m_rect.x -= data.m_minSize.x - data.m_rect.width;
- data.m_rect.width = data.m_maxSize.x;
- }
- if ( data.m_minSize.y != -1 && data.m_rect.height < data.m_minSize.y )
- {
- if ( data.m_flags & wxINTERACTIVE_RESIZE_N )
- data.m_rect.y -= data.m_minSize.y - data.m_rect.height;
- data.m_rect.height = data.m_minSize.y;
- }
- if ( data.m_maxSize.y != -1 && data.m_rect.height > data.m_maxSize.y )
- {
- if ( data.m_flags & wxINTERACTIVE_RESIZE_N )
- data.m_rect.y -= data.m_minSize.y - data.m_rect.height;
- data.m_rect.height = data.m_maxSize.y;
- }
-}
-
-void wxInteractiveMoveHandler::OnMouseMove(wxMouseEvent& event)
+// do the window-specific processing after processing the update event
+void wxTopLevelWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
{
- if ( m_data.m_flags & wxINTERACTIVE_WAIT_FOR_INPUT )
- event.Skip();
-
- else if ( m_data.m_flags & wxINTERACTIVE_MOVE )
- {
- wxPoint diff = wxGetMousePosition() - m_data.m_pos;
- m_data.m_rect = m_data.m_rectOrig;
- m_data.m_rect.Offset(diff);
- m_data.m_window->Move(m_data.m_rect.GetPosition());
- }
+ // call inherited, but skip the wxControl's version, and call directly the
+ // wxWindow's one instead, because the only reason why we are overriding this
+ // function is that we want to use SetTitle() instead of wxControl::SetLabel()
+ wxWindowBase::DoUpdateWindowUI(event);
- else if ( m_data.m_flags & wxINTERACTIVE_RESIZE )
+ // update title
+ if ( event.GetSetText() )
{
- wxPoint diff = wxGetMousePosition() - m_data.m_pos;
- m_data.m_rect = m_data.m_rectOrig;
- wxApplyResize(m_data, diff);
- m_data.m_window->SetSize(m_data.m_rect);
+ if ( event.GetText() != GetTitle() )
+ SetTitle(event.GetText());
}
}
-void wxInteractiveMoveHandler::OnMouseDown(wxMouseEvent& event)
+void wxTopLevelWindowBase::RequestUserAttention(int WXUNUSED(flags))
{
- if ( m_data.m_flags & wxINTERACTIVE_WAIT_FOR_INPUT )
- {
- m_data.m_flags &= ~wxINTERACTIVE_WAIT_FOR_INPUT;
- m_data.m_pos = wxGetMousePosition();
- }
+ // it's probably better than do nothing, isn't it?
+ Raise();
}
-
-void wxInteractiveMoveHandler::OnKeyDown(wxKeyEvent& event)
-{
- if ( m_data.m_flags & wxINTERACTIVE_WAIT_FOR_INPUT )
- {
- m_data.m_flags &= ~wxINTERACTIVE_WAIT_FOR_INPUT;
- m_data.m_pos = wxGetMousePosition();
- }
-
- wxPoint diff(-1,-1);
-
- switch ( event.GetKeyCode() )
- {
- case WXK_UP: diff = wxPoint(0, -16); break;
- case WXK_DOWN: diff = wxPoint(0, 16); break;
- case WXK_LEFT: diff = wxPoint(-16, 0); break;
- case WXK_RIGHT: diff = wxPoint(16, 0); break;
- case WXK_ESCAPE:
- m_data.m_window->SetSize(m_data.m_rectOrig);
- m_data.m_evtLoop->Exit();
- return;
- case WXK_RETURN:
- m_data.m_evtLoop->Exit();
- return;
- }
-
- if ( diff.x != -1 )
- {
- if ( m_data.m_flags & wxINTERACTIVE_MOVE )
- {
- m_data.m_rect.Offset(diff);
- m_data.m_window->Move(m_data.m_rect.GetPosition());
- }
- else /* wxINTERACTIVE_RESIZE */
- {
- if ( !(m_data.m_flags & wxINTERACTIVE_RESIZE_DIR) )
- {
- if ( diff.y < 0 )
- m_data.m_flags |= wxINTERACTIVE_RESIZE_N;
- else if ( diff.y > 0 )
- m_data.m_flags |= wxINTERACTIVE_RESIZE_S;
- if ( diff.x < 0 )
- m_data.m_flags |= wxINTERACTIVE_RESIZE_W;
- else if ( diff.x > 0 )
- m_data.m_flags |= wxINTERACTIVE_RESIZE_E;
- }
-
- wxApplyResize(m_data, diff);
- m_data.m_window->SetSize(m_data.m_rect);
- }
- }
-}
-
-void wxInteractiveMoveHandler::OnMouseUp(wxMouseEvent& event)
-{
- m_data.m_evtLoop->Exit();
-}
-
-
-void wxTopLevelWindowBase::InteractiveMove(int flags)
-{
- wxASSERT_MSG( !((flags & wxINTERACTIVE_MOVE) && (flags & wxINTERACTIVE_RESIZE)),
- wxT("can't move and resize window at the same time") );
-
- wxASSERT_MSG( !(flags & wxINTERACTIVE_RESIZE) ||
- (flags & wxINTERACTIVE_WAIT_FOR_INPUT) ||
- (flags & wxINTERACTIVE_RESIZE_DIR),
- wxT("direction of resizing not specified") );
-
- wxInteractiveMoveData data;
- wxEventLoop loop;
- wxWindow *focus = FindFocus();
-
- // FIXME - display resize cursor if waiting for initial input
-
- data.m_window = this;
- data.m_evtLoop = &loop;
- data.m_flags = flags;
- data.m_rect = data.m_rectOrig = GetRect();
- data.m_pos = wxGetMousePosition();
- data.m_minSize = wxSize(GetMinWidth(), GetMinHeight());
- data.m_maxSize = wxSize(GetMaxWidth(), GetMaxHeight());
-
- this->PushEventHandler(new wxInteractiveMoveHandler(data));
- if ( focus )
- focus->PushEventHandler(new wxInteractiveMoveHandler(data));
-
- CaptureMouse();
- loop.Run();
- ReleaseMouse();
-
- this->PopEventHandler(TRUE/*delete*/);
- if ( focus )
- focus->PopEventHandler(TRUE/*delete*/);
-}
-
-#endif // __WXUNIVERSAL__
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