X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9cf3d218700ccb80a6a2a2715413816c0b2a3ad2..fdb97de42b8a1491257566fb7bbd343916f1f2b8:/samples/docview/view.cpp diff --git a/samples/docview/view.cpp b/samples/docview/view.cpp index e48c269d8f..d454e56554 100644 --- 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 -// 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 +// Copyright: (c) 1998 Julian Smart +// (c) 2008 Vadim Zeitlin // Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// @@ -13,270 +14,355 @@ #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP -#include "wx/wx.h" + #include "wx/wx.h" #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" -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) - 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) ) { - 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. - SetFrame(frame); - + 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(((MyFrame *)frame)->editMenu); + doc->GetCommandProcessor()->SetEditMenu(app.GetMainWindowEditMenu()); doc->GetCommandProcessor()->Initialize(); } - + 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) { - dc->SetFont(*wxNORMAL_FONT); 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) { - if (!GetDocument()->Close()) + if ( !GetDocument()->Close() ) 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); - - 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) ) { - 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) -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); - - 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) { - if (!GetDocument()->Close()) + if ( !GetDocument()->Close() ) return 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; } -/* -* Window implementations -*/ +// ---------------------------------------------------------------------------- +// MyCanvas implementation +// ---------------------------------------------------------------------------- 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) { - 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) { - if (!view) + if ( !m_view ) return; - - static DoodleSegment *currentSegment = (DoodleSegment *) NULL; - + wxClientDC dc(this); PrepareDC(dc); - + 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. - 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; +}