Forward port of r60190 (wxMSW Cairo support) to trunk.

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

diff --git a/samples/docview/view.cpp b/samples/docview/view.cpp
index e48c269d8f22e8034728558810665e7e2261a8b9..d454e56554600d29ff16b74322ad3f121768fa97 100644 (file)
--- a/samples/docview/view.cpp
+++ b/samples/docview/view.cpp
@@ -1,11 +1,12 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        view.cpp
-// Purpose:     View classes
+// Name:        samples/docview/view.cpp
+// Purpose:     View classes implementation

 // Author:      Julian Smart
 // Author:      Julian Smart

-// Modified by:
+// Modified by: Vadim Zeitlin: merge with the MDI version and general cleanup

 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Created:     04/01/98
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart
+// Copyright:   (c) 1998 Julian Smart
+//              (c) 2008 Vadim Zeitlin

 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 


@@ -13,270 +14,355 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #ifndef WX_PRECOMP
 #endif
 
 #ifndef WX_PRECOMP

-#include "wx/wx.h"
+    #include "wx/wx.h"

 #endif
 
 #if !wxUSE_DOC_VIEW_ARCHITECTURE
 #endif
 
 #if !wxUSE_DOC_VIEW_ARCHITECTURE

-#error You must set wxUSE_DOC_VIEW_ARCHITECTURE to 1 in setup.h!
+    #error You must set wxUSE_DOC_VIEW_ARCHITECTURE to 1 in setup.h!

 #endif
 
 #include "docview.h"
 #include "doc.h"
 #include "view.h"
 
 #endif
 
 #include "docview.h"
 #include "doc.h"
 #include "view.h"
 

-IMPLEMENT_DYNAMIC_CLASS(DrawingView, wxView)
+// ----------------------------------------------------------------------------
+// DrawingView implementation
+// ----------------------------------------------------------------------------

 
 

-// For drawing lines in a canvas
-float xpos = -1;
-float ypos = -1;
+IMPLEMENT_DYNAMIC_CLASS(DrawingView, wxView)

 
 BEGIN_EVENT_TABLE(DrawingView, wxView)
 
 BEGIN_EVENT_TABLE(DrawingView, wxView)

-    EVT_MENU(DOODLE_CUT, DrawingView::OnCut)
+    EVT_MENU(wxID_CUT, DrawingView::OnCut)

 END_EVENT_TABLE()
 
 // What to do when a view is created. Creates actual
 // windows for displaying the view.
 bool DrawingView::OnCreate(wxDocument *doc, long WXUNUSED(flags) )
 {
 END_EVENT_TABLE()
 
 // What to do when a view is created. Creates actual
 // windows for displaying the view.
 bool DrawingView::OnCreate(wxDocument *doc, long WXUNUSED(flags) )
 {

-    if (!singleWindowMode)
+    MyApp& app = wxGetApp();
+    if ( app.GetMode() != MyApp::Mode_Single )

     {
     {

-        // Multiple windows
-        frame = wxGetApp().CreateChildFrame(doc, this, true);
-        frame->SetTitle(_T("DrawingView"));
-        
-        canvas = GetMainFrame()->CreateCanvas(this, frame);
-#ifdef __X__
-        // X seems to require a forced resize
-        int x, y;
-        frame->GetSize(&x, &y);
-        frame->SetSize(wxDefaultCoord, wxDefaultCoord, x, y);
-#endif
-        frame->Show(true);
+        // 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);

     }
     }

-    else
+    else // single document mode

     {
     {

-        // Single-window mode
-        frame = GetMainFrame();
-        canvas = GetMainFrame()->canvas;
-        canvas->view = this;
-        
+        // reuse the existing window and canvas
+        m_frame = wxStaticCast(app.GetTopWindow(), wxFrame);
+        m_canvas = app.GetMainWindowCanvas();
+        m_canvas->SetView(this);
+

         // Associate the appropriate frame with this view.
         // Associate the appropriate frame with this view.

-        SetFrame(frame);
-        
+        SetFrame(m_frame);
+

         // Make sure the document manager knows that this is the
         // current view.
         Activate(true);
         // Make sure the document manager knows that this is the
         // current view.
         Activate(true);

-        
+

         // Initialize the edit menu Undo and Redo items
         // Initialize the edit menu Undo and Redo items

-        doc->GetCommandProcessor()->SetEditMenu(((MyFrame *)frame)->editMenu);
+        doc->GetCommandProcessor()->SetEditMenu(app.GetMainWindowEditMenu());

         doc->GetCommandProcessor()->Initialize();
     }
         doc->GetCommandProcessor()->Initialize();
     }

-    
+

     return true;
 }
 
     return true;
 }
 

-// Sneakily gets used for default print/preview
-// as well as drawing on the screen.
+// Sneakily gets used for default print/preview as well as drawing on the
+// screen.

 void DrawingView::OnDraw(wxDC *dc)
 {
 void DrawingView::OnDraw(wxDC *dc)
 {

-    dc->SetFont(*wxNORMAL_FONT);

     dc->SetPen(*wxBLACK_PEN);
     dc->SetPen(*wxBLACK_PEN);

-    
-    wxList::compatibility_iterator node = ((DrawingDocument *)GetDocument())->GetDoodleSegments().GetFirst();
-    while (node)
+
+    // simply draw all lines of all segments
+    const DoodleSegments& segments = GetDocument()->GetSegments();
+    for ( DoodleSegments::const_iterator i = segments.begin();
+          i != segments.end();
+          ++i )

     {
     {

-        DoodleSegment *seg = (DoodleSegment *)node->GetData();
-        seg->Draw(dc);
-        node = node->GetNext();
+        const DoodleLines& lines = i->GetLines();
+        for ( DoodleLines::const_iterator j = lines.begin(); 
+              j != lines.end();
+              ++j )
+        {
+            const DoodleLine& line = *j;
+
+            dc->DrawLine(line.x1, line.y1, line.x2, line.y2);
+        }

     }
 }
 
     }
 }
 

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

 {
 {

-    if (canvas)
-        canvas->Refresh();
-    
-/* Is the following necessary?
-#ifdef __WXMSW__
-    if (canvas)
-        canvas->Refresh();
-#else
-    if (canvas)
-    {
-        wxClientDC dc(canvas);
-        dc.Clear();
-        OnDraw(& dc);
-    }
-#endif
-*/
+    return wxStaticCast(wxView::GetDocument(), DrawingDocument);
+}
+
+void DrawingView::OnUpdate(wxView* sender, wxObject* hint)
+{
+    wxView::OnUpdate(sender, hint);
+    if ( m_canvas )
+        m_canvas->Refresh();

 }
 
 // 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 ( !GetDocument()->Close() )

         return false;
         return false;

-    
-    // Clear the canvas in  case we're in single-window mode,
-    // and the canvas stays.
-    canvas->ClearBackground();
-    canvas->view = (wxView *) NULL;
-    canvas = (MyCanvas *) NULL;
-    
-    wxString s(wxTheApp->GetAppDisplayName());
-    if (frame)
-        frame->SetTitle(s);
-    
-    SetFrame((wxFrame *) NULL);
-    
+

     Activate(false);
     Activate(false);

-    
-    if (deleteWindow && !singleWindowMode)
+
+    // Clear the canvas in single-window mode in which it stays alive
+    if ( wxGetApp().GetMode() == MyApp::Mode_Single )

     {
     {

-        delete frame;
-        return true;
+        m_canvas->ClearBackground();
+        m_canvas->ResetView();
+        m_canvas = NULL;
+
+        if ( m_frame )
+            m_frame->SetTitle(wxTheApp->GetAppDisplayName());
+    }
+    else // not single window mode
+    {
+        if ( deleteWindow )
+            wxDELETE(m_frame);

     }
     }

+
+    SetFrame(NULL);
+

     return true;
 }
 
 void DrawingView::OnCut(wxCommandEvent& WXUNUSED(event) )
 {
     return true;
 }
 
 void DrawingView::OnCut(wxCommandEvent& WXUNUSED(event) )
 {

-    DrawingDocument *doc = (DrawingDocument *)GetDocument();
-    doc->GetCommandProcessor()->Submit(new DrawingCommand(_T("Cut Last Segment"), DOODLE_CUT, doc, (DoodleSegment *) NULL));
+    DrawingDocument * const doc = GetDocument();
+
+    doc->GetCommandProcessor()->Submit(new DrawingRemoveSegmentCommand(doc));

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// TextEditView implementation
+// ----------------------------------------------------------------------------
+

 IMPLEMENT_DYNAMIC_CLASS(TextEditView, wxView)
 
 IMPLEMENT_DYNAMIC_CLASS(TextEditView, wxView)
 

-bool TextEditView::OnCreate(wxDocument *doc, long WXUNUSED(flags) )
+BEGIN_EVENT_TABLE(TextEditView, wxView)
+    EVT_MENU(wxID_COPY, TextEditView::OnCopy)
+    EVT_MENU(wxID_PASTE, TextEditView::OnPaste)
+    EVT_MENU(wxID_SELECTALL, TextEditView::OnSelectAll)
+END_EVENT_TABLE()
+
+bool TextEditView::OnCreate(wxDocument *doc, long WXUNUSED(flags))

 {
 {

-    frame = wxGetApp().CreateChildFrame(doc, this, false);
-    
-    int width, height;
-    frame->GetClientSize(&width, &height);
-    textsw = new MyTextWindow(this, frame, wxPoint(0, 0), wxSize(width, height), wxTE_MULTILINE);
-    frame->SetTitle(_T("TextEditView"));
-    
-#ifdef __X__
-    // X seems to require a forced resize
-    int x, y;
-    frame->GetSize(&x, &y);
-    frame->SetSize(wxDefaultCoord, wxDefaultCoord, x, y);
-#endif
-    
-    frame->Show(true);
+    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);
+

     Activate(true);
     Activate(true);

-    
-    return true;
-}

 
 

-// Handled by wxTextWindow
-void TextEditView::OnDraw(wxDC *WXUNUSED(dc) )
-{
+    return true;

 }
 
 }
 

-void TextEditView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint) )
+void TextEditView::OnDraw(wxDC *WXUNUSED(dc))

 {
 {

+    // nothing to do here, wxTextCtrl draws itself

 }
 
 bool TextEditView::OnClose(bool deleteWindow)
 {
 }
 
 bool TextEditView::OnClose(bool deleteWindow)
 {

-    if (!GetDocument()->Close())
+    if ( !GetDocument()->Close() )

         return false;
         return false;

-    
+

     Activate(false);
     Activate(false);

-    
-    if (deleteWindow)
+
+    if ( wxGetApp().GetMode() == MyApp::Mode_Single )

     {
     {

-        delete frame;
-        return true;
+        m_text->Clear();

     }
     }

+    else // not single window mode
+    {
+        if ( deleteWindow )
+            wxDELETE(m_frame);
+    }
+

     return true;
 }
 
     return true;
 }
 

-/*
-* Window implementations
-*/
+// ----------------------------------------------------------------------------
+// MyCanvas implementation
+// ----------------------------------------------------------------------------

 
 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
     EVT_MOUSE_EVENTS(MyCanvas::OnMouseEvent)
 END_EVENT_TABLE()
 
 // Define a constructor for my canvas
 
 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
     EVT_MOUSE_EVENTS(MyCanvas::OnMouseEvent)
 END_EVENT_TABLE()
 
 // Define a constructor for my canvas

-MyCanvas::MyCanvas(wxView *v, wxFrame *frame, const wxPoint& pos, const wxSize& size, const long style):
-    wxScrolledWindow(frame, wxID_ANY, pos, size, style)
+MyCanvas::MyCanvas(wxView *view, wxWindow *parent)
+    : wxScrolledWindow(parent, wxID_ANY, wxPoint(0, 0), parent->GetClientSize())
+{
+    m_view = view;
+    m_currentSegment = NULL;
+    m_lastMousePos = wxDefaultPosition;
+
+    SetCursor(wxCursor(wxCURSOR_PENCIL));
+
+    // this is completely arbitrary and is done just for illustration purposes
+    SetVirtualSize(1000, 1000);
+    SetScrollRate(20, 20);
+
+    SetBackgroundColour(*wxWHITE);
+}
+
+MyCanvas::~MyCanvas()

 {
 {

-    view = v;
+    delete m_currentSegment;

 }
 
 // Define the repainting behaviour
 void MyCanvas::OnDraw(wxDC& dc)
 {
 }
 
 // Define the repainting behaviour
 void MyCanvas::OnDraw(wxDC& dc)
 {

-    if (view)
-        view->OnDraw(& dc);
+    if ( m_view )
+        m_view->OnDraw(& dc);

 }
 
 }
 

-// This implements a tiny doodling program. Drag the mouse using
-// the left button.
+// This implements a tiny doodling program. Drag the mouse using the left
+// button.

 void MyCanvas::OnMouseEvent(wxMouseEvent& event)
 {
 void MyCanvas::OnMouseEvent(wxMouseEvent& event)
 {

-    if (!view)
+    if ( !m_view )

         return;
         return;

-    
-    static DoodleSegment *currentSegment = (DoodleSegment *) NULL;
-    
+

     wxClientDC dc(this);
     PrepareDC(dc);
     wxClientDC dc(this);
     PrepareDC(dc);

-    
+

     dc.SetPen(*wxBLACK_PEN);
     dc.SetPen(*wxBLACK_PEN);

-    
-    wxPoint pt(event.GetLogicalPosition(dc));
-    
-    if (currentSegment && event.LeftUp())
+
+    const wxPoint pt(event.GetLogicalPosition(dc));
+
+    // is this the end of the current segment?
+    if ( m_currentSegment && event.LeftUp() )

     {
     {

-        if (currentSegment->lines.GetCount() == 0)
-        {
-            delete currentSegment;
-            currentSegment = (DoodleSegment *) NULL;
-        }
-        else
+        if ( !m_currentSegment->IsEmpty() )

         {
             // We've got a valid segment on mouse left up, so store it.
         {
             // We've got a valid segment on mouse left up, so store it.

-            DrawingDocument *doc = (DrawingDocument *)view->GetDocument();
-            
-            doc->GetCommandProcessor()->Submit(new DrawingCommand(_T("Add Segment"), DOODLE_ADD, doc, currentSegment));
-            
-            view->GetDocument()->Modify(true);
-            currentSegment = (DoodleSegment *) NULL;
+            DrawingDocument * const
+                doc = wxStaticCast(m_view->GetDocument(), DrawingDocument);
+
+            doc->GetCommandProcessor()->Submit(
+                new DrawingAddSegmentCommand(doc, *m_currentSegment));
+
+            doc->Modify(true);

         }
         }

+
+        delete m_currentSegment;
+        m_currentSegment = NULL;

     }
     }

-    
-    if (xpos > -1 && ypos > -1 && event.Dragging())
+
+    // is this the start of a new segment?
+    if ( m_lastMousePos != wxDefaultPosition && event.Dragging() )
+    {
+        if ( !m_currentSegment )
+            m_currentSegment = new DoodleSegment;
+
+        m_currentSegment->AddLine(m_lastMousePos, pt);
+
+        dc.DrawLine(m_lastMousePos, pt);
+    }
+
+    m_lastMousePos = pt;
+}
+
+// ----------------------------------------------------------------------------
+// wxImageCanvas implementation
+// ----------------------------------------------------------------------------
+
+BEGIN_EVENT_TABLE(wxImageCanvas, wxScrolledWindow)
+END_EVENT_TABLE()
+
+// Define a constructor for my canvas
+wxImageCanvas::wxImageCanvas(wxView* view, wxWindow* parent)
+    : wxScrolledWindow(parent, wxID_ANY, wxPoint(0, 0), parent->GetClientSize())
+{
+    m_view = view;
+}
+
+// Define the repainting behaviour
+void wxImageCanvas::OnDraw(wxDC& dc)
+{
+    if ( m_view )
+        m_view->OnDraw(& dc);
+}
+
+// ----------------------------------------------------------------------------
+// wxImageView implementation
+// ----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxImageView, wxView)
+
+BEGIN_EVENT_TABLE(wxImageView, wxView)
+END_EVENT_TABLE()
+
+wxImageDocument* wxImageView::GetDocument()
+{
+    return wxStaticCast(wxView::GetDocument(), wxImageDocument);
+}
+
+bool wxImageView::OnCreate(wxDocument* doc, long WXUNUSED(flags))
+{
+    m_frame = wxGetApp().CreateChildFrame(doc, this, false);
+    m_frame->SetTitle("Image View");
+    m_canvas = new wxImageCanvas(this, m_frame);
+    m_frame->Show(true);
+    Activate(true);
+    return true;
+}
+
+void wxImageView::OnUpdate(wxView* sender, wxObject* hint)
+{
+    wxView::OnUpdate(sender, hint);
+    const wxImage* image = GetDocument()->GetImage();
+    if (image->IsOk())

     {
     {

-        if (!currentSegment)
-            currentSegment = new DoodleSegment;
-        
-        DoodleLine *newLine = new DoodleLine;
-        newLine->x1 = (long)xpos; 
-        newLine->y1 = (long)ypos;
-        newLine->x2 = pt.x; 
-        newLine->y2 = pt.y;
-        currentSegment->lines.Append(newLine);
-        
-        dc.DrawLine( (long)xpos, (long)ypos, pt.x, pt.y);
+        m_canvas->SetScrollbars( 1, 1, image->GetWidth(), image->GetHeight() );

     }
     }

-    xpos = pt.x;
-    ypos = pt.y;

 }
 
 }
 

-// Define a constructor for my text subwindow
-MyTextWindow::MyTextWindow(wxView *v, wxFrame *frame, const wxPoint& pos, const wxSize& size, const long style):
-    wxTextCtrl(frame, wxID_ANY, _T(""), pos, size, style)
+void wxImageView::OnDraw(wxDC* dc)

 {
 {

-    view = v;
+    const wxImage* image = GetDocument()->GetImage();
+    if (image->IsOk())
+    {
+        dc->DrawBitmap(wxBitmap(*image), 0, 0);
+    }

 }
 
 }
 

+bool wxImageView::OnClose(bool deleteWindow)
+{
+    if ( !GetDocument()->Close() )
+        return false;
+
+    Activate(false);
+
+    if ( wxGetApp().GetMode() == MyApp::Mode_Single )
+    {
+        GetDocument()->DeleteContents();
+    }
+    else // not single window mode
+    {
+        if ( deleteWindow )
+            wxDELETE(m_frame);
+    }
+    return true;
+}