Added background inheritance to wxUniv.

Added sample to show this...


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15269 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/configure

@@ -688,6 +688,7 @@ trap 'rm -fr `echo "
             minimal/Makefile
             mobile/Makefile
             mobile/wxedit/Makefile
+            mobile/styles/Makefile
             newgrid/Makefile
             notebook/Makefile
             png/Makefile
@@ -841,6 +842,7 @@ CONFIG_FILES=\${CONFIG_FILES-"Makefile
             minimal/Makefile
             mobile/Makefile
             mobile/wxedit/Makefile
+            mobile/styles/Makefile
             newgrid/Makefile
             notebook/Makefile
             png/Makefile

samples/configure.in

@@ -56,6 +56,7 @@ AC_OUTPUT([
             minimal/Makefile
             mobile/Makefile
             mobile/wxedit/Makefile
+            mobile/styles/Makefile
             newgrid/Makefile
             notebook/Makefile
             png/Makefile

samples/mobile/Makefile.in

@@ -4,6 +4,8 @@
 
 all:
 	cd wxedit && $(MAKE)
+	cd styles && $(MAKE)
 
 clean:
 	cd wxedit && $(MAKE) clean
+	cd styles && $(MAKE) clean

samples/mobile/styles/Makefile.in

@@ -0,0 +1,25 @@
+#
+# File:		makefile
+# Author:	Robert Roebling
+# Created:	2002
+# Updated:	
+# Copyright:	(c) 2002 Robert Roebling
+#
+# "%W% %G%"
+#
+# Makefile for wxedit
+
+top_srcdir = @top_srcdir@/..
+top_builddir = ../../..
+program_dir = samples/mobile/styles
+
+PROGRAM=styles
+
+DATAFILES=marble.jpg
+
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
+
+include ../../../src/makeprog.env
+
+@IF_GNU_MAKE@-include $(DEPFILES)

samples/mobile/styles/styles.cpp

@@ -0,0 +1,107 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        styles.cpp
+// Author:      Robert Roebling
+// Created:     04/07/02
+// Copyright:   
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef __GNUG__
+    #pragma implementation "styles.cpp"
+#endif
+
+// For compilers that support precompilation
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+// Include private headers
+#include "styles.h"
+
+//------------------------------------------------------------------------------
+// MyFrame
+//------------------------------------------------------------------------------
+
+BEGIN_EVENT_TABLE(MyFrame,wxFrame)
+    EVT_MENU(ID_ABOUT, MyFrame::OnAbout)
+    EVT_MENU(ID_QUIT, MyFrame::OnQuit)
+    EVT_CLOSE(MyFrame::OnCloseWindow)
+END_EVENT_TABLE()
+
+MyFrame::MyFrame( wxWindow *parent, wxWindowID id, const wxString &title,
+    const wxPoint &position, const wxSize& size, long style ) :
+    wxFrame( parent, id, title, position, size, style )
+{
+    // Create menu and status bar.
+    CreateMyMenuBar();
+    CreateStatusBar(1);
+    SetStatusText( "Welcome to Styles!" );
+    
+    
+    wxImage image;
+    image.LoadFile( "marble.jpg", wxBITMAP_TYPE_JPEG );
+    
+    wxBitmap bitmap( image );
+    SetBackground( bitmap, 0, wxTILE );
+    
+    new wxStaticText( this, -1, "This is text", wxPoint( 20,50 ) );
+    
+    new wxCheckBox( this, -1, "This is a checkbox", wxPoint( 20,70 ) );
+}
+
+void MyFrame::CreateMyMenuBar()
+{
+    wxMenu *file_menu = new wxMenu;
+    file_menu->Append( ID_ABOUT, "About...", "Program info" );
+    file_menu->AppendSeparator();
+    file_menu->Append( ID_QUIT, "Quit...", "Quit program" );
+
+    wxMenuBar *menu_bar = new wxMenuBar();
+    menu_bar->Append( file_menu, "&File" );
+    
+    SetMenuBar( menu_bar );
+}
+
+void MyFrame::OnAbout( wxCommandEvent &event )
+{
+}
+
+void MyFrame::OnQuit( wxCommandEvent &event )
+{
+     Close( TRUE );
+}
+
+void MyFrame::OnCloseWindow( wxCloseEvent &event )
+{
+    Destroy();
+}
+
+//------------------------------------------------------------------------------
+// MyApp
+//------------------------------------------------------------------------------
+
+IMPLEMENT_APP(MyApp)
+
+MyApp::MyApp()
+{
+}
+
+bool MyApp::OnInit()
+{
+    wxInitAllImageHandlers();
+
+    SetVendorName("Free world");
+    SetAppName("Styles");
+    
+    MyFrame *frame = new MyFrame( NULL, -1, "Styles", wxPoint(20,20), wxSize(500,340) );
+    frame->Show( TRUE );
+    
+    return TRUE;
+}
+
+int MyApp::OnExit()
+{
+    return 0;
+}
+

samples/mobile/styles/styles.h

@@ -0,0 +1,66 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        styles.h
+// Author:      Robert Roebling
+// Created:     04/07/02
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef __styles_H__
+#define __styles_H__
+
+#ifdef __GNUG__
+    #pragma interface "styles.cpp"
+#endif
+
+// Include wxWindows' headers
+
+#ifndef WX_PRECOMP
+    #include <wx/wx.h>
+#endif
+
+//----------------------------------------------------------------------------
+//   constants
+//----------------------------------------------------------------------------
+
+#define ID_ABOUT    100
+#define ID_QUIT     204
+
+//----------------------------------------------------------------------------
+// MyFrame
+//----------------------------------------------------------------------------
+
+class MyFrame: public wxFrame
+{
+public:
+    // constructors and destructors
+    MyFrame( wxWindow *parent, wxWindowID id, const wxString &title,
+        const wxPoint& pos = wxDefaultPosition,
+        const wxSize& size = wxDefaultSize,
+        long style = wxDEFAULT_FRAME_STYLE );
+    
+private:
+    void CreateMyMenuBar();
+    
+private:
+    void OnAbout( wxCommandEvent &event );
+    void OnQuit( wxCommandEvent &event );
+    
+    void OnCloseWindow( wxCloseEvent &event );
+    
+private:
+    DECLARE_EVENT_TABLE()
+};
+
+//----------------------------------------------------------------------------
+// MyApp
+//----------------------------------------------------------------------------
+
+class MyApp: public wxApp
+{
+public:
+    MyApp();
+    
+    virtual bool OnInit();
+    virtual int OnExit();
+};
+
+#endif

src/univ/winuniv.cpp

@@ -180,39 +180,6 @@ const wxBitmap& wxWindow::GetBackgroundBitmap(int *alignment,
 // painting
 // ----------------------------------------------------------------------------
 
-// the event handler executed when the window background must be painted
-void wxWindow::OnErase(wxEraseEvent& event)
-{
-    if ( !m_renderer )
-    {
-        event.Skip();
-
-        return;
-    }
-    
-    DoDrawBackground(*event.GetDC());
-
-    // if we have both scrollbars, we also have a square in the corner between
-    // them which we must paint
-    if ( m_scrollbarVert && m_scrollbarHorz )
-    {
-        wxSize size = GetSize();
-        wxRect rectClient = GetClientRect(),
-               rectBorder = m_renderer->GetBorderDimensions(GetBorder());
-
-        wxRect rectCorner;
-        rectCorner.x = rectClient.GetRight() + 1;
-        rectCorner.y = rectClient.GetBottom() + 1;
-        rectCorner.SetRight(size.x - rectBorder.width);
-        rectCorner.SetBottom(size.y - rectBorder.height);
-
-        if ( GetUpdateRegion().Contains(rectCorner) )
-        {
-            m_renderer->DrawScrollCorner(*event.GetDC(), rectCorner);
-        }
-    }
-}
-
 // the event handlers executed when the window must be repainted
 void wxWindow::OnNcPaint(wxPaintEvent& event)
 {
@@ -263,47 +230,97 @@ void wxWindow::OnPaint(wxPaintEvent& event)
     }
 }
 
-bool wxWindow::DoDrawBackground(wxDC& dc)
+// the event handler executed when the window background must be painted
+void wxWindow::OnErase(wxEraseEvent& event)
 {
-    // FIXME: Leaving this code in leads to partial bg redraws
-    //        sometimes under MSW.
-    //        The same happens under X11 because it has a clear
-    //        region and an update region and these are sometimes
-    //        different. RR.
-    wxRect rect;
-// #ifndef __WXMSW__
-#if 0
-    rect = GetUpdateRegion().GetBox();
-    if ( !rect.width && !rect.height )
-#endif
+    if ( !m_renderer )
+    {
+        event.Skip();
+
+        return;
+    }
+    
+    DoDrawBackground(*event.GetDC());
+
+    // if we have both scrollbars, we also have a square in the corner between
+    // them which we must paint
+    if ( m_scrollbarVert && m_scrollbarHorz )
     {
         wxSize size = GetSize();
-        rect.width = size.x;
-        rect.height = size.y;
-    }
+        wxRect rectClient = GetClientRect(),
+               rectBorder = m_renderer->GetBorderDimensions(GetBorder());
 
-    if ( GetBackgroundBitmap().Ok() )
-    {
-        // get the bitmap and the flags
-        int alignment;
-        wxStretch stretch;
-        wxBitmap bmp = GetBackgroundBitmap(&alignment, &stretch);
-        wxControlRenderer::DrawBitmap(dc, bmp, rect, alignment, stretch);
-    }
-    else // just fill it with bg colour if no bitmap
-    {
-        m_renderer->DrawBackground(dc, wxTHEME_BG_COLOUR(this),
-                                   rect, GetStateFlags());
-    }
+        wxRect rectCorner;
+        rectCorner.x = rectClient.GetRight() + 1;
+        rectCorner.y = rectClient.GetBottom() + 1;
+        rectCorner.SetRight(size.x - rectBorder.width);
+        rectCorner.SetBottom(size.y - rectBorder.height);
 
+        if ( GetUpdateRegion().Contains(rectCorner) )
+        {
+            m_renderer->DrawScrollCorner(*event.GetDC(), rectCorner);
+        }
+    }
+}
+
+bool wxWindow::DoDrawBackground(wxDC& dc)
+{
+    wxRect rect;
+    
+    wxSize size = GetSize();  // Why not GetClientSize() ?
+    rect.x = 0;
+    rect.y = 0;
+    rect.width = size.x;
+    rect.height = size.y;
+    
+    if (HasTransparentBackground() && GetParent() && GetParent()->ProvidesBackground())
+    {
+        wxASSERT( !IsTopLevel() );
+    
+        wxPoint pos = GetPosition();
+        
+        AdjustForParentClientOrigin( pos.x, pos.y, 0 );
+        
+        // Adjust DC logical origin
+        wxCoord x,y;
+        dc.GetLogicalOrigin( &x, &y );
+        x += pos.x;
+        y += pos.y;
+        dc.SetLogicalOrigin( x, y );
+        
+        // Adjust draw rect
+        rect.x = pos.x;
+        rect.y = pos.y;
+        
+        // Let parent draw the background
+        GetParent()->EraseBackground( dc, rect );
+    }
+    else
+    {
+        // Draw background ouselves
+         EraseBackground( dc, rect );
+    }
+    
     return TRUE;
 }
 
 void wxWindow::EraseBackground(wxDC& dc, const wxRect& rect)
 {
-    // TODO: handle bg bitmaps here!
+    if ( GetBackgroundBitmap().Ok() )
+    {
+        // Get the bitmap and the flags
+        int alignment;
+        wxStretch stretch;
+        wxBitmap bmp = GetBackgroundBitmap(&alignment, &stretch);
+        wxControlRenderer::DrawBitmap(dc, bmp, rect, alignment, stretch);
+    }
+    else 
+    {
+        // Just fill it with bg colour if no bitmap
     
-    m_renderer->DrawBackground(dc, wxTHEME_BG_COLOUR(this), rect, GetStateFlags());
+        m_renderer->DrawBackground(dc, wxTHEME_BG_COLOUR(this),
+                                   rect, GetStateFlags());
+    }
 }
 
 void wxWindow::DoDrawBorder(wxDC& dc, const wxRect& rect)