override DoSetValue() to avoid unnecessary clipboard operations, fixes #14369

[wxWidgets.git] / samples / docview / view.cpp

diff --git a/samples/docview/view.cpp b/samples/docview/view.cpp
index d27e3f6a20f7a0a67a3ecc768f7398508c733f02..5b3743fd90075551d8698f1c3689236071d8d5b2 100644 (file)
--- a/samples/docview/view.cpp
+++ b/samples/docview/view.cpp
@@ -7,7 +7,7 @@
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Julian Smart
 //              (c) 2008 Vadim Zeitlin
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Julian Smart
 //              (c) 2008 Vadim Zeitlin

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 // For compilers that support precompilation, includes "wx/wx.h".
 /////////////////////////////////////////////////////////////////////////////
 
 // For compilers that support precompilation, includes "wx/wx.h".


@@ -41,32 +41,26 @@ END_EVENT_TABLE()
 
 // What to do when a view is created. Creates actual
 // windows for displaying the view.
 
 // What to do when a view is created. Creates actual
 // windows for displaying the view.

-bool DrawingView::OnCreate(wxDocument *doc, long WXUNUSED(flags) )
+bool DrawingView::OnCreate(wxDocument *doc, long flags)

 {
 {

+    if ( !wxView::OnCreate(doc, flags) )
+        return false;
+

     MyApp& app = wxGetApp();
     if ( app.GetMode() != MyApp::Mode_Single )
     {
         // create a new window and canvas inside it
     MyApp& app = wxGetApp();
     if ( app.GetMode() != MyApp::Mode_Single )
     {
         // create a new window and canvas inside it

-        m_frame = app.CreateChildFrame(doc, this, true);
-        m_frame->SetTitle("Drawing View");
-
-        m_canvas = new MyCanvas(this, m_frame);
-        m_frame->Show(true);
+        wxFrame* frame = app.CreateChildFrame(this, true);
+        wxASSERT(frame == GetFrame());
+        m_canvas = new MyCanvas(this);
+        frame->Show();

     }
     else // single document mode
     {
         // reuse the existing window and canvas
     }
     else // single document mode
     {
         // reuse the existing window and canvas

-        m_frame = wxStaticCast(app.GetTopWindow(), wxFrame);

         m_canvas = app.GetMainWindowCanvas();
         m_canvas->SetView(this);
 
         m_canvas = app.GetMainWindowCanvas();
         m_canvas->SetView(this);
 

-        // Associate the appropriate frame with this view.
-        SetFrame(m_frame);
-
-        // Make sure the document manager knows that this is the
-        // current view.
-        Activate(true);
-

         // Initialize the edit menu Undo and Redo items
         doc->GetCommandProcessor()->SetEditMenu(app.GetMainWindowEditMenu());
         doc->GetCommandProcessor()->Initialize();
         // Initialize the edit menu Undo and Redo items
         doc->GetCommandProcessor()->SetEditMenu(app.GetMainWindowEditMenu());
         doc->GetCommandProcessor()->Initialize();


@@ -88,7 +82,7 @@ void DrawingView::OnDraw(wxDC *dc)
           ++i )
     {
         const DoodleLines& lines = i->GetLines();
           ++i )
     {
         const DoodleLines& lines = i->GetLines();

-        for ( DoodleLines::const_iterator j = lines.begin(); 
+        for ( DoodleLines::const_iterator j = lines.begin();

               j != lines.end();
               ++j )
         {
               j != lines.end();
               ++j )
         {


@@ -104,8 +98,9 @@ DrawingDocument* DrawingView::GetDocument()
     return wxStaticCast(wxView::GetDocument(), DrawingDocument);
 }
 
     return wxStaticCast(wxView::GetDocument(), DrawingDocument);
 }
 

-void DrawingView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
+void DrawingView::OnUpdate(wxView* sender, wxObject* hint)

 {
 {

+    wxView::OnUpdate(sender, hint);

     if ( m_canvas )
         m_canvas->Refresh();
 }
     if ( m_canvas )
         m_canvas->Refresh();
 }


@@ -113,7 +108,7 @@ void DrawingView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 // Clean up windows used for displaying the view.
 bool DrawingView::OnClose(bool deleteWindow)
 {
 // Clean up windows used for displaying the view.
 bool DrawingView::OnClose(bool deleteWindow)
 {

-    if ( !GetDocument()->Close() )
+    if ( !wxView::OnClose(deleteWindow) )

         return false;
 
     Activate(false);
         return false;
 
     Activate(false);


@@ -125,17 +120,17 @@ bool DrawingView::OnClose(bool deleteWindow)
         m_canvas->ResetView();
         m_canvas = NULL;
 
         m_canvas->ResetView();
         m_canvas = NULL;
 

-        if ( m_frame )
-            m_frame->SetTitle(wxTheApp->GetAppDisplayName());
+        if (GetFrame())
+            wxStaticCast(GetFrame(), wxFrame)->SetTitle(wxTheApp->GetAppDisplayName());

     }
     else // not single window mode
     {
         if ( deleteWindow )
     }
     else // not single window mode
     {
         if ( deleteWindow )

-            wxDELETE(m_frame);
+        {
+            GetFrame()->Destroy();
+            SetFrame(NULL);
+        }

     }
     }

-
-    SetFrame(NULL);
-

     return true;
 }
 
     return true;
 }
 


@@ -158,17 +153,17 @@ BEGIN_EVENT_TABLE(TextEditView, wxView)
     EVT_MENU(wxID_SELECTALL, TextEditView::OnSelectAll)
 END_EVENT_TABLE()
 
     EVT_MENU(wxID_SELECTALL, TextEditView::OnSelectAll)
 END_EVENT_TABLE()
 

-bool TextEditView::OnCreate(wxDocument *doc, long WXUNUSED(flags))
+bool TextEditView::OnCreate(wxDocument *doc, long flags)

 {
 {

-    m_frame = wxGetApp().CreateChildFrame(doc, this, false);
-    m_text = new wxTextCtrl(m_frame, wxID_ANY, "",
-                            wxPoint(0, 0), m_frame->GetClientSize(),
-                            wxTE_MULTILINE);
-
-    m_frame->SetTitle("Text View");
-    m_frame->Show(true);
+    if ( !wxView::OnCreate(doc, flags) )
+        return false;

 
 

-    Activate(true);
+    wxFrame* frame = wxGetApp().CreateChildFrame(this, false);
+    wxASSERT(frame == GetFrame());
+    m_text = new wxTextCtrl(frame, wxID_ANY, "",
+                            wxDefaultPosition, wxDefaultSize,
+                            wxTE_MULTILINE);
+    frame->Show();

 
     return true;
 }
 
     return true;
 }


@@ -180,7 +175,7 @@ void TextEditView::OnDraw(wxDC *WXUNUSED(dc))
 
 bool TextEditView::OnClose(bool deleteWindow)
 {
 
 bool TextEditView::OnClose(bool deleteWindow)
 {

-    if ( !GetDocument()->Close() )
+    if ( !wxView::OnClose(deleteWindow) )

         return false;
 
     Activate(false);
         return false;
 
     Activate(false);


@@ -192,9 +187,11 @@ bool TextEditView::OnClose(bool deleteWindow)
     else // not single window mode
     {
         if ( deleteWindow )
     else // not single window mode
     {
         if ( deleteWindow )

-            wxDELETE(m_frame);
+        {
+            GetFrame()->Destroy();
+            SetFrame(NULL);
+        }

     }
     }

-

     return true;
 }
 
     return true;
 }
 


@@ -208,7 +205,7 @@ END_EVENT_TABLE()
 
 // Define a constructor for my canvas
 MyCanvas::MyCanvas(wxView *view, wxWindow *parent)
 
 // Define a constructor for my canvas
 MyCanvas::MyCanvas(wxView *view, wxWindow *parent)

-    : wxScrolledWindow(parent, wxID_ANY, wxPoint(0, 0), parent->GetClientSize())
+    : wxScrolledWindow(parent ? parent : view->GetFrame())

 {
     m_view = view;
     m_currentSegment = NULL;
 {
     m_view = view;
     m_currentSegment = NULL;


@@ -264,8 +261,7 @@ void MyCanvas::OnMouseEvent(wxMouseEvent& event)
             doc->Modify(true);
         }
 
             doc->Modify(true);
         }
 

-        delete m_currentSegment;
-        m_currentSegment = NULL;
+        wxDELETE(m_currentSegment);

     }
 
     // is this the start of a new segment?
     }
 
     // is this the start of a new segment?


@@ -282,3 +278,160 @@ void MyCanvas::OnMouseEvent(wxMouseEvent& event)
     m_lastMousePos = pt;
 }
 
     m_lastMousePos = pt;
 }
 

+// ----------------------------------------------------------------------------
+// ImageCanvas implementation
+// ----------------------------------------------------------------------------
+
+// Define a constructor for my canvas
+ImageCanvas::ImageCanvas(wxView* view)
+    : wxScrolledWindow(view->GetFrame())
+{
+    m_view = view;
+    SetScrollRate( 10, 10 );
+}
+
+// Define the repainting behaviour
+void ImageCanvas::OnDraw(wxDC& dc)
+{
+    if ( m_view )
+        m_view->OnDraw(& dc);
+}
+
+// ----------------------------------------------------------------------------
+// ImageView implementation
+// ----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(ImageView, wxView)
+
+ImageDocument* ImageView::GetDocument()
+{
+    return wxStaticCast(wxView::GetDocument(), ImageDocument);
+}
+
+bool ImageView::OnCreate(wxDocument* doc, long flags)
+{
+    if ( !wxView::OnCreate(doc, flags) )
+        return false;
+
+    wxFrame* frame = wxGetApp().CreateChildFrame(this, false);
+    wxASSERT(frame == GetFrame());
+    m_canvas = new ImageCanvas(this);
+    frame->Show();
+
+    return true;
+}
+
+void ImageView::OnUpdate(wxView* sender, wxObject* hint)
+{
+    wxView::OnUpdate(sender, hint);
+    wxImage image = GetDocument()->GetImage();
+    if ( image.IsOk() )
+    {
+        m_canvas->SetVirtualSize(image.GetWidth(), image.GetHeight());
+    }
+}
+
+void ImageView::OnDraw(wxDC* dc)
+{
+    wxImage image = GetDocument()->GetImage();
+    if ( image.IsOk() )
+    {
+        dc->DrawBitmap(wxBitmap(image), 0, 0, true /* use mask */);
+    }
+}
+
+bool ImageView::OnClose(bool deleteWindow)
+{
+    if ( !wxView::OnClose(deleteWindow) )
+        return false;
+
+    Activate(false);
+
+    if ( wxGetApp().GetMode() == MyApp::Mode_Single )
+    {
+        GetDocument()->DeleteContents();
+    }
+    else // not single window mode
+    {
+        if ( deleteWindow )
+        {
+            GetFrame()->Destroy();
+            SetFrame(NULL);
+        }
+    }
+    return true;
+}
+
+// ----------------------------------------------------------------------------
+// ImageDetailsView
+// ----------------------------------------------------------------------------
+
+ImageDetailsView::ImageDetailsView(ImageDetailsDocument *doc)
+                : wxView()
+{
+    SetDocument(doc);
+
+    m_frame = wxGetApp().CreateChildFrame(this, false);
+    m_frame->SetTitle("Image Details");
+
+    wxPanel * const panel = new wxPanel(m_frame);
+    wxFlexGridSizer * const sizer = new wxFlexGridSizer(2, wxSize(5, 5));
+    const wxSizerFlags
+        flags = wxSizerFlags().Align(wxALIGN_CENTRE_VERTICAL).Border();
+
+    sizer->Add(new wxStaticText(panel, wxID_ANY, "Image &file:"), flags);
+    sizer->Add(new wxStaticText(panel, wxID_ANY, doc->GetFilename()), flags);
+
+    sizer->Add(new wxStaticText(panel, wxID_ANY, "Image &type:"), flags);
+    wxString typeStr;
+    switch ( doc->GetType() )
+    {
+        case wxBITMAP_TYPE_PNG:
+            typeStr = "PNG";
+            break;
+
+        case wxBITMAP_TYPE_JPEG:
+            typeStr = "JPEG";
+            break;
+
+        default:
+            typeStr = "Unknown";
+    }
+    sizer->Add(new wxStaticText(panel, wxID_ANY, typeStr), flags);
+
+    sizer->Add(new wxStaticText(panel, wxID_ANY, "Image &size:"), flags);
+    wxSize size = doc->GetSize();
+    sizer->Add(new wxStaticText(panel, wxID_ANY,
+                                wxString::Format("%d*%d", size.x, size.y)),
+               flags);
+
+    sizer->Add(new wxStaticText(panel, wxID_ANY, "Number of unique &colours:"),
+               flags);
+    sizer->Add(new wxStaticText(panel, wxID_ANY,
+                                wxString::Format("%lu", doc->GetNumColours())),
+               flags);
+
+    sizer->Add(new wxStaticText(panel, wxID_ANY, "Uses &alpha:"), flags);
+    sizer->Add(new wxStaticText(panel, wxID_ANY,
+                                doc->HasAlpha() ? "Yes" : "No"), flags);
+
+    panel->SetSizer(sizer);
+    m_frame->SetClientSize(panel->GetBestSize());
+    m_frame->Show(true);
+}
+
+void ImageDetailsView::OnDraw(wxDC * WXUNUSED(dc))
+{
+    // nothing to do here, we use controls to show our information
+}
+
+bool ImageDetailsView::OnClose(bool deleteWindow)
+{
+    if ( wxGetApp().GetMode() != MyApp::Mode_Single && deleteWindow )
+    {
+        delete m_frame;
+        m_frame = NULL;
+    }
+
+    return true;
+}