Allow showing the print preview frame non modally.

[wxWidgets.git] / src / generic / panelg.cpp

diff --git a/src/generic/panelg.cpp b/src/generic/panelg.cpp
index 3052aabd7b1786988a8f0378f32801659548ef50..d539393dbe3a836cc75ef5793ba68a876eea8679 100644 (file)
--- a/src/generic/panelg.cpp
+++ b/src/generic/panelg.cpp
@@ -1,13 +1,12 @@
-/////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////

 // Name:        src/generic/panelg.cpp
 // Name:        src/generic/panelg.cpp

-// Purpose:     wxPanel and the keyboard handling code
-// Author:      Julian Smart, Robert Roebling, Vadim Zeitlin
-// Modified by:
-// Created:     04/01/98
-// RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:     wxWindows license
-/////////////////////////////////////////////////////////////////////////////
+// Purpose:     Generic wxPanel implementation.
+// Author:      Vadim Zeitlin
+// Created:     2011-03-20
+// RCS-ID:      $Id: wxhead.cpp,v 1.11 2010-04-22 12:44:51 zeitlin Exp $
+// Copyright:   (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////

 
 // ============================================================================
 // declarations
 
 // ============================================================================
 // declarations


@@ -17,11 +16,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
-    #pragma implementation "panelg.h"
-#endif
-
-// For compilers that support precompilation, includes "wx.h".
+// for compilers that support precompilation, includes "wx.h".

 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__


@@ -29,372 +24,46 @@
 #endif
 
 #ifndef WX_PRECOMP
 #endif
 
 #ifndef WX_PRECOMP

-    #include "wx/object.h"
-    #include "wx/font.h"
-    #include "wx/colour.h"
-    #include "wx/settings.h"
-    #include "wx/log.h"
-#endif
-
-#include "wx/toolbar.h"
-#include "wx/statusbr.h"
-
-#include "wx/generic/panelg.h"
-
-// ----------------------------------------------------------------------------
-// wxWin macros
-// ----------------------------------------------------------------------------
-
-IMPLEMENT_DYNAMIC_CLASS(wxPanel, wxWindow)
+    #include "wx/dc.h"
+    #include "wx/panel.h"
+#endif // WX_PRECOMP

 
 

-BEGIN_EVENT_TABLE(wxPanel, wxWindow)
-  EVT_SYS_COLOUR_CHANGED(wxPanel::OnSysColourChanged)
-  EVT_SET_FOCUS(wxPanel::OnFocus)
-  EVT_NAVIGATION_KEY(wxPanel::OnNavigationKey)
-  EVT_SIZE(wxPanel::OnSize)
-END_EVENT_TABLE()
+#ifdef wxHAS_GENERIC_PANEL

 
 // ============================================================================
 // implementation
 // ============================================================================
 
 
 // ============================================================================
 // implementation
 // ============================================================================
 

-// ----------------------------------------------------------------------------
-// wxPanel creation
-// ----------------------------------------------------------------------------
-
-void wxPanel::Init()
-{
-    m_winLastFocused = (wxWindow *)NULL;
-    m_btnDefault = (wxButton *)NULL;
-}
-
-bool wxPanel::Create(wxWindow *parent, wxWindowID id,
-                     const wxPoint& pos,
-                     const wxSize& size,
-                     long style,
-                     const wxString& name)
-{
-    return wxWindow::Create(parent, id, pos, size, style, name);
-}
-
-// ----------------------------------------------------------------------------
-// misc
-// ----------------------------------------------------------------------------
-
-void wxPanel::InitDialog()
+void wxPanel::DoSetBackgroundBitmap(const wxBitmap& bmp)

 {
 {

-    wxInitDialogEvent event(GetId());
-    event.SetEventObject(this);
-    GetEventHandler()->ProcessEvent(event);
-}
-
-// Responds to colour changes, and passes event on to children.
-void wxPanel::OnSysColourChanged(wxSysColourChangedEvent& event)
-{
-    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
-    Refresh();
+    m_bitmapBg = bmp;

 
 

-    // Propagate the event to the non-top-level children
-    wxWindow::OnSysColourChanged(event);
-}
-
-void wxPanel::OnSize(wxSizeEvent& WXUNUSED(event))
-{
-#if wxUSE_CONSTRAINTS
-    if (GetAutoLayout())
-        Layout();
-#endif
-}
-
-// ----------------------------------------------------------------------------
-// Keyboard handling - this is the place where the TAB traversal logic is
-// implemented. As this code is common to all ports, this ensures consistent
-// behaviour even if we don't specify how exactly the wxNavigationKeyEvent are
-// generated and this is done in platform specific code which also ensures that
-// we can follow the given platform standards.
-// ----------------------------------------------------------------------------
-
-void wxPanel::OnNavigationKey( wxNavigationKeyEvent& event )
-{
-    // the event is propagated downwards if the event emitter was our parent
-    bool goingDown = event.GetEventObject() == GetParent();
-
-    const wxWindowList& children = GetChildren();
-
-    // there is not much to do if we don't have children and we're not
-    // interested in "notebook page change" events here
-    if ( !children.GetCount() || event.IsWindowChange() )
+    if ( m_bitmapBg.IsOk() )

     {
     {

-        // let the parent process it unless it already comes from our parent
-        // of we don't have any
-        wxWindow *parent = GetParent();
-        if ( goingDown ||
-             !parent || !parent->GetEventHandler()->ProcessEvent(event) )
-        {
-            event.Skip();
-        }
-
-        return;
-    }
-
-    // where are we going?
-    bool forward = event.GetDirection();
-
-    // the node of the children list from which we should start looking for the
-    // next acceptable child
-    wxWindowList::Node *node, *start_node;
-
-    // we should start from the first/last control and not from the one which
-    // had focus the last time if we're propagating the event downwards because
-    // for our parent we look like a single control
-    if ( goingDown )
-    {
-        // just to be sure it's not used (normally this is not necessary, but
-        // doesn't hurt neither)
-        m_winLastFocused = (wxWindow *)NULL;
-
-        // start from first or last depending on where we're going
-        node = forward ? children.GetFirst() : children.GetLast();
-
-        // we want to cycle over all nodes
-        start_node = (wxWindowList::Node *)NULL;
+        Connect(wxEVT_ERASE_BACKGROUND,
+                wxEraseEventHandler(wxPanel::OnEraseBackground));

     }
     else
     {
     }
     else
     {

-        // try to find the child which has the focus currently
-
-        // the event emitter might have done this for us
-        wxWindow *winFocus = event.GetCurrentFocus();
-
-        // but if not, we might know where the focus was ourselves
-        if (!winFocus)
-            winFocus = m_winLastFocused;
-
-        // if still no luck, do it the hard way
-        if (!winFocus)
-            winFocus = wxWindow::FindFocus();
-
-        if ( winFocus )
-        {
-            // ok, we found the focus - now is it our child?
-            start_node = children.Find( winFocus );
-        }
-        else
-        {
-            start_node = (wxWindowList::Node *)NULL;
-        }
-
-        if ( !start_node && m_winLastFocused )
-        {
-            // window which has focus isn't our child, fall back to the one
-            // which had the focus the last time
-            start_node = children.Find( m_winLastFocused );
-        }
-
-        // if we still didn't find anything, we should start with the first one
-        if ( !start_node )
-        {
-            start_node = children.GetFirst();
-        }
-
-        // and the first child which we can try setting focus to is the next or
-        // the previous one
-        node = forward ? start_node->GetNext() : start_node->GetPrevious();
-    }
-
-    // we want to cycle over all elements passing by NULL
-    while ( node != start_node )
-    {
-        // Have we come to the last or first item on the panel?
-        if ( !node )
-        {
-            if ( !goingDown )
-            {
-                // Check if our (may be grand) parent is another panel: if this
-                // is the case, they will know what to do with this navigation
-                // key and so give them the chance to process it instead of
-                // looping inside this panel (normally, the focus will go to
-                // the next/previous item after this panel in the parent
-                // panel).
-                wxWindow *focussed_child_of_parent = this;
-                for ( wxWindow *parent = GetParent();
-                      parent;
-                      parent = parent->GetParent() )
-                {
-                    // we don't want to tab into a different dialog or frame
-                    if ( focussed_child_of_parent->IsTopLevel() )
-                        break;
-
-                    event.SetCurrentFocus( focussed_child_of_parent );
-                    if (parent->GetEventHandler()->ProcessEvent( event ))
-                        return;
-
-                    focussed_child_of_parent = parent;
-                }
-            }
-            //else: as the focus came from our parent, we definitely don't want
-            //      to send it back to it!
-
-            // no, we are not inside another panel so process this ourself
-            node = forward ? children.GetFirst() : children.GetLast();
-
-            continue;
-        }
-
-        wxWindow *child = node->GetData();
-
-        if ( child->AcceptsFocus() )
-        {
-            m_winLastFocused = child;  // should be redundant, but it is not
-
-            // if we're setting the focus to a child panel we should prevent it
-            // from giving it to the child which had the focus the last time
-            // and instead give it to the first/last child depending from which
-            // direction we're coming
-            wxPanel *subpanel = wxDynamicCast(child, wxPanel);
-            if ( subpanel )
-            {
-                // trick the panel into thinking that it got the navigation
-                // event - instead of duplicating all the code here
-                //
-                // make sure that we do trick it by setting all the parameters
-                // correctly (consistently with the code in this very function
-                // above) and that it starts from the very beginning/end by
-                // using SetLastFocus(NULL)
-                subpanel->SetLastFocus((wxWindow *)NULL);
-            }
-
-            event.SetEventObject(this);
-            if ( !child->GetEventHandler()->ProcessEvent(event) )
-            {
-                // everything is simple: just give focus to it
-                child->SetFocus();
-            }
-            //else: the child manages its focus itself
-
-            event.Skip( FALSE );
-            return;
-        }
-
-        node = forward ? node->GetNext() : node->GetPrevious();
+        Disconnect(wxEVT_ERASE_BACKGROUND,
+                   wxEraseEventHandler(wxPanel::OnEraseBackground));

     }
     }

-
-    // we cycled through all of our children and none of them wanted to accept
-    // focus
-    event.Skip();

 }
 
 }
 

-void wxPanel::SetFocus()
+void wxPanel::OnEraseBackground(wxEraseEvent& event)

 {
 {

-    wxLogTrace(_T("focus"), _T("SetFocus on wxPanel 0x%08x."), GetHandle());
-
-    // If the panel gets the focus *by way of getting it set directly*
-    // we move the focus to the first window that can get it.
+    wxDC& dc = *event.GetDC();

 
 

-    // VZ: no, we set the focus to the last window too. I don't understand why
-    //     should we make this distinction: if an app wants to set focus to
-    //     some precise control, it may always do it directly, but if we don't
-    //     use m_winLastFocused here, the focus won't be set correctly after a
-    //     notebook page change nor after frame activation under MSW (it calls
-    //     SetFocus too)
-    //
-    // RR: yes, when I the tab key to navigate in a panel with some controls and
-    //     a notebook and the focus jumps to the notebook (typically coming from
-    //     a button at the top) the notebook should focus the first child in the
-    //     current notebook page, not the last one which would otherwise get the
-    //     focus if you used the tab key to navigate from the current notebook
-    //     page to button at the bottom. See every page in the controls sample.
-    //
-    // VZ: ok, but this still doesn't (at least I don't see how it can) take
-    //     care of first/last child problem: i.e. if Shift-TAB is pressed in a
-    //     situation like above, the focus should be given to the last child,
-    //     not the first one (and not to the last focused one neither) - I
-    //     think my addition to OnNavigationKey() above takes care of it.
-    //     Keeping #ifdef __WXGTK__ for now, but please try removing it and see
-    //     what happens.
-    //
-    // RR: Removed for now. Let's see what happens..
+    const wxSize clientSize = GetClientSize();
+    const wxSize bitmapSize = m_bitmapBg.GetSize();

 
 

-    if ( !SetFocusToChild() )
+    for ( int x = 0; x < clientSize.x; x += bitmapSize.x )

     {
     {

-        wxWindow::SetFocus();
-    }
-}
-
-void wxPanel::OnFocus(wxFocusEvent& event)
-{
-    wxLogTrace(_T("focus"), _T("OnFocus on wxPanel 0x%08x, name: %s"), GetHandle(), GetName().c_str() );
-
-    // If the panel gets the focus *by way of getting clicked on*
-    // we move the focus to either the last window that had the
-    // focus or the first one that can get it.
-    (void)SetFocusToChild();
-
-    event.Skip();
-}
-
-bool wxPanel::SetFocusToChild()
-{
-    return wxSetFocusToChild(this, &m_winLastFocused);
-}
-
-// ----------------------------------------------------------------------------
-// SetFocusToChild(): this function is used by wxPanel but also by wxFrame in
-// wxMSW, this is why it is outside of wxPanel class
-// ----------------------------------------------------------------------------
-
-bool wxSetFocusToChild(wxWindow *win, wxWindow **childLastFocused)
-{
-    wxCHECK_MSG( win, FALSE, _T("wxSetFocusToChild(): invalid window") );
-
-    if ( *childLastFocused )
-    {
-        // It might happen that the window got reparented or no longer accepts
-        // the focus.
-        if ( (*childLastFocused)->GetParent() == win &&
-             (*childLastFocused)->AcceptsFocus() )
+        for ( int y = 0; y < clientSize.y; y += bitmapSize.y )

         {
         {

-            wxLogTrace(_T("focus"),
-                       _T("SetFocusToChild() => last child (0x%08x)."),
-                       (*childLastFocused)->GetHandle());
-
-            (*childLastFocused)->SetFocus();
-            return TRUE;
-        }
-        else
-        {
-            // it doesn't count as such any more
-            *childLastFocused = (wxWindow *)NULL;
+            dc.DrawBitmap(m_bitmapBg, x, y);

         }
     }
         }
     }

-
-    // set the focus to the first child who wants it
-    wxWindowList::Node *node = win->GetChildren().GetFirst();
-    while ( node )
-    {
-        wxWindow *child = node->GetData();
-
-        if ( child->AcceptsFocus()
-             && !child->IsTopLevel()
-#if wxUSE_TOOLBAR
-             && !wxDynamicCast(child, wxToolBar)
-#endif // wxUSE_TOOLBAR
-#if wxUSE_STATUSBAR
-             && !wxDynamicCast(child, wxStatusBar)
-#endif // wxUSE_STATUSBAR
-           )
-        {
-            wxLogTrace(_T("focus"),
-                       _T("SetFocusToChild() => first child (0x%08x)."),
-                       child->GetHandle());
-
-            *childLastFocused = child;  // should be redundant, but it is not
-            child->SetFocus();
-            return TRUE;
-        }
-
-        node = node->GetNext();
-    }
-
-    return FALSE;

 }
 }

+
+#endif // wxHAS_GENERIC_PANEL