Support using GetTextExtent() with empty string to get descent in wxOSX.

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

diff --git a/samples/docview/view.h b/samples/docview/view.h
index b956daadeb9f53cb9da76c992fef492ca1314116..3ba84d88476509d50e0d2cd40a7ca42167b2690a 100644 (file)
--- a/samples/docview/view.h
+++ b/samples/docview/view.h
@@ -1,49 +1,73 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        view.h
+// Name:        samples/docview/view.h
 // Purpose:     View classes
 // Author:      Julian Smart
-// Modified by:
+// Modified by: Vadim Zeitlin: merge with the MDI version and general cleanup
 // Created:     04/01/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart
-// Licence:     wxWindows license
+// Copyright:   (c) 1998 Julian Smart
+//              (c) 2008 Vadim Zeitlin
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifndef __VIEW_H__
-#define __VIEW_H__
+#ifndef _WX_SAMPLES_DOCVIEW_VIEW_H_
+#define _WX_SAMPLES_DOCVIEW_VIEW_H_
 
 #include "wx/docview.h"
 
-class DrawingView;
+// ----------------------------------------------------------------------------
+// Drawing view classes
+// ----------------------------------------------------------------------------
+
+// The window showing the drawing itself
 class MyCanvas : public wxScrolledWindow
 {
 public:
-    DrawingView* m_view;
+    // view may be NULL if we're not associated with one yet, but parent must
+    // be a valid pointer
+    MyCanvas(wxView *view, wxWindow *parent = NULL);
+    virtual ~MyCanvas();
 
-    MyCanvas(DrawingView*, wxFrame*, const wxPoint& pos, const wxSize& size, const long style);
     virtual void OnDraw(wxDC& dc);
 
-protected:
+    // in a normal multiple document application a canvas is associated with
+    // one view from the beginning until the end, but to support the single
+    // document mode in which all documents reuse the same MyApp::GetCanvas()
+    // we need to allow switching the canvas from one view to another one
+
+    void SetView(wxView *view)
+    {
+        wxASSERT_MSG( !m_view, "shouldn't be already associated with a view" );
+
+        m_view = view;
+    }
+
+    void ResetView()
+    {
+        wxASSERT_MSG( m_view, "should be associated with a view" );
+
+        m_view = NULL;
+    }
+
+private:
     void OnMouseEvent(wxMouseEvent& event);
-    DECLARE_EVENT_TABLE()
-};
 
-class MyTextWindow: public wxTextCtrl
-{
-public:
-    wxView* m_view;
+    wxView *m_view;
 
-    MyTextWindow(wxView *v, wxFrame *frame, const wxPoint& pos, const wxSize& size, const long style);
+    // the segment being currently drawn or NULL if none
+    DoodleSegment *m_currentSegment;
+
+    // the last mouse press position
+    wxPoint m_lastMousePos;
+
+    DECLARE_EVENT_TABLE()
 };
 
+// The view using MyCanvas to show its contents
 class DrawingView : public wxView
 {
 public:
-    wxFrame*  m_frame;
-    MyCanvas* m_canvas;
-
-    DrawingView() { m_canvas = NULL; m_frame = NULL; };
-    virtual ~DrawingView() {};
+    DrawingView() : wxView(), m_canvas(NULL) {}
 
     virtual bool OnCreate(wxDocument *doc, long flags);
     virtual void OnDraw(wxDC *dc);
@@ -52,31 +76,94 @@ public:
 
     DrawingDocument* GetDocument();
 
-protected:
+private:
     void OnCut(wxCommandEvent& event);
 
-private:
+    MyCanvas *m_canvas;
+
     DECLARE_EVENT_TABLE()
     DECLARE_DYNAMIC_CLASS(DrawingView)
 };
 
+// ----------------------------------------------------------------------------
+// Text view classes
+// ----------------------------------------------------------------------------
+
+// The view using a standard wxTextCtrl to show its contents
 class TextEditView : public wxView
 {
 public:
-    wxFrame*      m_frame;
-    MyTextWindow* m_textsw;
-
-    TextEditView(): wxView() { m_frame = NULL; m_textsw = NULL; }
-    virtual ~TextEditView() {}
+    TextEditView() : wxView(), m_text(NULL) {}
 
     virtual bool OnCreate(wxDocument *doc, long flags);
     virtual void OnDraw(wxDC *dc);
-    virtual void OnUpdate(wxView *sender, wxObject *hint = NULL);
     virtual bool OnClose(bool deleteWindow = true);
-    virtual bool ProcessEvent(wxEvent&);
+
+    wxTextCtrl *GetText() const { return m_text; }
 
 private:
+    void OnCopy(wxCommandEvent& WXUNUSED(event)) { m_text->Copy(); }
+    void OnPaste(wxCommandEvent& WXUNUSED(event)) { m_text->Paste(); }
+    void OnSelectAll(wxCommandEvent& WXUNUSED(event)) { m_text->SelectAll(); }
+
+    wxTextCtrl *m_text;
+
+    DECLARE_EVENT_TABLE()
     DECLARE_DYNAMIC_CLASS(TextEditView)
 };
 
-#endif
+// ----------------------------------------------------------------------------
+// ImageCanvas
+// ----------------------------------------------------------------------------
+
+class ImageCanvas : public wxScrolledWindow
+{
+public:
+    ImageCanvas(wxView*);
+
+    virtual void OnDraw(wxDC& dc);
+private:
+    wxView *m_view;
+};
+
+// ----------------------------------------------------------------------------
+// ImageView
+// ----------------------------------------------------------------------------
+
+class ImageView : public wxView
+{
+public:
+    ImageView() : wxView() {}
+
+    virtual bool OnCreate(wxDocument*, long flags);
+    virtual void OnDraw(wxDC*);
+    virtual bool OnClose(bool deleteWindow = true);
+    virtual void OnUpdate(wxView *sender, wxObject *hint = NULL);
+
+    ImageDocument* GetDocument();
+
+private:
+    ImageCanvas* m_canvas;
+
+    DECLARE_DYNAMIC_CLASS(ImageView)
+};
+
+// ----------------------------------------------------------------------------
+// ImageDetailsView
+// ----------------------------------------------------------------------------
+
+class ImageDetailsView : public wxView
+{
+public:
+    ImageDetailsView(ImageDetailsDocument *doc);
+
+    virtual void OnDraw(wxDC *dc);
+    virtual bool OnClose(bool deleteWindow);
+
+private:
+    wxFrame *m_frame;
+
+    wxDECLARE_NO_COPY_CLASS(ImageDetailsView);
+};
+
+#endif // _WX_SAMPLES_DOCVIEW_VIEW_H_