wxWidgets/samples/mdi/mdi.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: mdi.cpp
// Purpose: MDI sample
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// declarations
// ===========================================================================
// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#include "wx/mdi.h"
#endif
#include "wx/toolbar.h"
#if !defined(__WXMSW__)
#include "mondrian.xpm"
#endif
#include "bitmaps/new.xpm"
#include "bitmaps/open.xpm"
#include "bitmaps/save.xpm"
#include "bitmaps/copy.xpm"
#include "bitmaps/cut.xpm"
#include "bitmaps/paste.xpm"
#include "bitmaps/print.xpm"
#include "bitmaps/help.xpm"
#include "mdi.h"
IMPLEMENT_APP(MyApp)
// ---------------------------------------------------------------------------
// global variables
// ---------------------------------------------------------------------------
MyFrame *frame = (MyFrame *) NULL;
wxList my_children;
// For drawing lines in a canvas
static long xpos = -1;
static long ypos = -1;
static int gs_nFrames = 0;
// ---------------------------------------------------------------------------
// event tables
// ---------------------------------------------------------------------------
BEGIN_EVENT_TABLE(MyFrame, wxMDIParentFrame)
EVT_MENU(MDI_ABOUT, MyFrame::OnAbout)
EVT_MENU(MDI_NEW_WINDOW, MyFrame::OnNewWindow)
EVT_MENU(MDI_QUIT, MyFrame::OnQuit)
EVT_CLOSE(MyFrame::OnClose)
EVT_SIZE(MyFrame::OnSize)
END_EVENT_TABLE()
// Note that MDI_NEW_WINDOW and MDI_ABOUT commands get passed
// to the parent window for processing, so no need to
// duplicate event handlers here.
BEGIN_EVENT_TABLE(MyChild, wxMDIChildFrame)
EVT_MENU(MDI_CHILD_QUIT, MyChild::OnQuit)
EVT_MENU(MDI_REFRESH, MyChild::OnRefresh)
EVT_MENU(MDI_CHANGE_TITLE, MyChild::OnChangeTitle)
EVT_MENU(MDI_CHANGE_POSITION, MyChild::OnChangePosition)
EVT_MENU(MDI_CHANGE_SIZE, MyChild::OnChangeSize)
EVT_SIZE(MyChild::OnSize)
EVT_MOVE(MyChild::OnMove)
EVT_CLOSE(MyChild::OnClose)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
EVT_MOUSE_EVENTS(MyCanvas::OnEvent)
END_EVENT_TABLE()
// ===========================================================================
// implementation
// ===========================================================================
// ---------------------------------------------------------------------------
// MyApp
// ---------------------------------------------------------------------------
// Initialise this in OnInit, not statically
bool MyApp::OnInit()
{
// Create the main frame window
frame = new MyFrame((wxFrame *)NULL, wxID_ANY, _T("MDI Demo"),
wxDefaultPosition, wxSize(500, 400),
wxDEFAULT_FRAME_STYLE | wxHSCROLL | wxVSCROLL);
#ifdef __WXMSW__
#if 0
// Experimental: change the window menu
wxMenu* windowMenu = new wxMenu;
windowMenu->Append(5000, _T("My menu item!"));
frame->SetWindowMenu(windowMenu);
#endif
#endif
// Give it an icon
#ifdef __WXMSW__
frame->SetIcon(wxIcon(_T("mdi_icn")));
#else
frame->SetIcon(wxIcon( mondrian_xpm ));
#endif
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(MDI_NEW_WINDOW, _T("&New window\tCtrl-N"), _T("Create a new child window"));
file_menu->Append(MDI_QUIT, _T("&Exit\tAlt-X"), _T("Quit the program"));
wxMenu *help_menu = new wxMenu;
help_menu->Append(MDI_ABOUT, _T("&About\tF1"));
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, _T("&File"));
menu_bar->Append(help_menu, _T("&Help"));
// Associate the menu bar with the frame
frame->SetMenuBar(menu_bar);
#if wxUSE_STATUSBAR
frame->CreateStatusBar();
#endif // wxUSE_STATUSBAR
frame->Show(true);
SetTopWindow(frame);
return true;
}
// ---------------------------------------------------------------------------
// MyFrame
// ---------------------------------------------------------------------------
// Define my frame constructor
MyFrame::MyFrame(wxWindow *parent,
const wxWindowID id,
const wxString& title,
const wxPoint& pos,
const wxSize& size,
const long style)
: wxMDIParentFrame(parent, id, title, pos, size,
style | wxNO_FULL_REPAINT_ON_RESIZE)
{
textWindow = new wxTextCtrl(this, wxID_ANY, _T("A help window"),
wxDefaultPosition, wxDefaultSize,
wxTE_MULTILINE | wxSUNKEN_BORDER);
#if wxUSE_TOOLBAR
CreateToolBar(wxNO_BORDER | wxTB_FLAT | wxTB_HORIZONTAL);
InitToolBar(GetToolBar());
#endif // wxUSE_TOOLBAR
#if wxUSE_ACCEL
// Accelerators
wxAcceleratorEntry entries[3];
entries[0].Set(wxACCEL_CTRL, (int) 'N', MDI_NEW_WINDOW);
entries[1].Set(wxACCEL_CTRL, (int) 'X', MDI_QUIT);
entries[2].Set(wxACCEL_CTRL, (int) 'A', MDI_ABOUT);
wxAcceleratorTable accel(3, entries);
SetAcceleratorTable(accel);
#endif // wxUSE_ACCEL
}
void MyFrame::OnClose(wxCloseEvent& event)
{
if ( event.CanVeto() && (gs_nFrames > 0) )
{
wxString msg;
msg.Printf(_T("%d windows still open, close anyhow?"), gs_nFrames);
if ( wxMessageBox(msg, _T("Please confirm"),
wxICON_QUESTION | wxYES_NO) != wxYES )
{
event.Veto();
return;
}
}
event.Skip();
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close();
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
{
(void)wxMessageBox(_T("wxWidgets 2.0 MDI Demo\n")
_T("Author: Julian Smart (c) 1997\n")
_T("Usage: mdi.exe"), _T("About MDI Demo"));
}
void MyFrame::OnNewWindow(wxCommandEvent& WXUNUSED(event) )
{
// Make another frame, containing a canvas
MyChild *subframe = new MyChild(frame, _T("Canvas Frame"));
wxString title;
title.Printf(_T("Canvas Frame %d"), ++gs_nFrames);
subframe->SetTitle(title);
// Give it an icon
#ifdef __WXMSW__
subframe->SetIcon(wxIcon(_T("chrt_icn")));
#else
subframe->SetIcon(wxIcon( mondrian_xpm ));
#endif
#if wxUSE_MENUS
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(MDI_NEW_WINDOW, _T("&New window"));
file_menu->Append(MDI_CHILD_QUIT, _T("&Close child"), _T("Close this window"));
file_menu->Append(MDI_QUIT, _T("&Exit"));
wxMenu *option_menu = new wxMenu;
option_menu->Append(MDI_REFRESH, _T("&Refresh picture"));
option_menu->Append(MDI_CHANGE_TITLE, _T("Change &title...\tCtrl-T"));
option_menu->AppendSeparator();
option_menu->Append(MDI_CHANGE_POSITION, _T("Move frame\tCtrl-M"));
option_menu->Append(MDI_CHANGE_SIZE, _T("Resize frame\tCtrl-S"));
wxMenu *help_menu = new wxMenu;
help_menu->Append(MDI_ABOUT, _T("&About"));
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, _T("&File"));
menu_bar->Append(option_menu, _T("&Child"));
menu_bar->Append(help_menu, _T("&Help"));
// Associate the menu bar with the frame
subframe->SetMenuBar(menu_bar);
#endif // wxUSE_MENUS
#if wxUSE_STATUSBAR
subframe->CreateStatusBar();
subframe->SetStatusText(title);
#endif // wxUSE_STATUSBAR
int width, height;
subframe->GetClientSize(&width, &height);
MyCanvas *canvas = new MyCanvas(subframe, wxPoint(0, 0), wxSize(width, height));
canvas->SetCursor(wxCursor(wxCURSOR_PENCIL));
subframe->canvas = canvas;
// Give it scrollbars
canvas->SetScrollbars(20, 20, 50, 50);
subframe->Show(true);
}
void MyFrame::OnSize(wxSizeEvent&
#ifdef __WXUNIVERSAL__
event
#else
WXUNUSED(event)
#endif
)
{
int w, h;
GetClientSize(&w, &h);
textWindow->SetSize(0, 0, 200, h);
GetClientWindow()->SetSize(200, 0, w - 200, h);
// FIXME: On wxX11, we need the MDI frame to process this
// event, but on other platforms this should not
// be done.
#ifdef __WXUNIVERSAL__
Applied patch [ 597398 ] Generic MDI, wxNotebook based. By Hans Van Leemputten (hansvl) - This patch implements a generic notebook based mdi, due to that wxMDIChildFrame could not derive from wxFrame some things in the samples and in the docmdi classes needed to be adjusted... basically this comes down to not do (wxFrame *) but instead do (wxMDIChildFrame *), or store a pointer to the frame in a wxWindow* instead of a wxFrame variable... - The main reason wxMDIChildFrame cannot derive from wxFrame is that it would take to much platform specific functions to be overwritten (= lot of ifdef's). This then couldn't be called generic anymore, so that's why we need to derive from wxPanel... - Tested on/with: 1. wxMSW (I disabled the MSW MDI implementation to be able to test it), tested it with the MDI sample, docvwmdi sample and docview sample and also tested it with wxWorkshop. (test = compile and run) 2. wxX11, tested with the same set wxWin samples as the wxMSW test. I also compiled wxWorkshop with it, but could not run wxWorkshop due to some issue not related to the MDI implementation. - How to apply: * Apply the patch * move mdig.cpp into wxWindows/src/generic/ * move mdig.h into wxWindows/include/wx/generic/ - Some extra things that still need to be done: * File lists, project files should be updated to include mdig.cpp (the patch only change this on wxX11) * The configuration script should be updated. * Maybe wxUSE_GENERIC_MDI_ARCHITECTURE also should be added so it is only included when wanted... git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16610 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2002-08-20 05:09:55 -04:00
event.Skip();
#endif
}
#if wxUSE_TOOLBAR
void MyFrame::InitToolBar(wxToolBar* toolBar)
{
wxBitmap* bitmaps[8];
bitmaps[0] = new wxBitmap( new_xpm );
bitmaps[1] = new wxBitmap( open_xpm );
bitmaps[2] = new wxBitmap( save_xpm );
bitmaps[3] = new wxBitmap( copy_xpm );
bitmaps[4] = new wxBitmap( cut_xpm );
bitmaps[5] = new wxBitmap( paste_xpm );
bitmaps[6] = new wxBitmap( print_xpm );
bitmaps[7] = new wxBitmap( help_xpm );
int width = 24;
int currentX = 5;
toolBar->AddTool( MDI_NEW_WINDOW, *(bitmaps[0]), wxNullBitmap, false, currentX, wxDefaultCoord, (wxObject *) NULL, _T("New file"));
currentX += width + 5;
toolBar->AddTool(1, *bitmaps[1], wxNullBitmap, false, currentX, wxDefaultCoord, (wxObject *) NULL, _T("Open file"));
currentX += width + 5;
toolBar->AddTool(2, *bitmaps[2], wxNullBitmap, false, currentX, wxDefaultCoord, (wxObject *) NULL, _T("Save file"));
currentX += width + 5;
toolBar->AddSeparator();
toolBar->AddTool(3, *bitmaps[3], wxNullBitmap, false, currentX, wxDefaultCoord, (wxObject *) NULL, _T("Copy"));
currentX += width + 5;
toolBar->AddTool(4, *bitmaps[4], wxNullBitmap, false, currentX, wxDefaultCoord, (wxObject *) NULL, _T("Cut"));
currentX += width + 5;
toolBar->AddTool(5, *bitmaps[5], wxNullBitmap, false, currentX, wxDefaultCoord, (wxObject *) NULL, _T("Paste"));
currentX += width + 5;
toolBar->AddSeparator();
toolBar->AddTool(6, *bitmaps[6], wxNullBitmap, false, currentX, wxDefaultCoord, (wxObject *) NULL, _T("Print"));
currentX += width + 5;
toolBar->AddSeparator();
toolBar->AddTool( MDI_ABOUT, *bitmaps[7], wxNullBitmap, true, currentX, wxDefaultCoord, (wxObject *) NULL, _T("Help"));
toolBar->Realize();
int i;
for (i = 0; i < 8; i++)
delete bitmaps[i];
}
#endif // wxUSE_TOOLBAR
// ---------------------------------------------------------------------------
// MyCanvas
// ---------------------------------------------------------------------------
// Define a constructor for my canvas
MyCanvas::MyCanvas(wxWindow *parent, const wxPoint& pos, const wxSize& size)
: wxScrolledWindow(parent, wxID_ANY, pos, size,
wxSUNKEN_BORDER |
wxNO_FULL_REPAINT_ON_RESIZE |
wxVSCROLL | wxHSCROLL)
{
SetBackgroundColour(wxColour(_T("WHITE")));
m_dirty = false;
}
// Define the repainting behaviour
void MyCanvas::OnDraw(wxDC& dc)
{
dc.SetFont(*wxSWISS_FONT);
dc.SetPen(*wxGREEN_PEN);
dc.DrawLine(0, 0, 200, 200);
dc.DrawLine(200, 0, 0, 200);
dc.SetBrush(*wxCYAN_BRUSH);
dc.SetPen(*wxRED_PEN);
dc.DrawRectangle(100, 100, 100, 50);
dc.DrawRoundedRectangle(150, 150, 100, 50, 20);
dc.DrawEllipse(250, 250, 100, 50);
#if wxUSE_SPLINES
dc.DrawSpline(50, 200, 50, 100, 200, 10);
#endif // wxUSE_SPLINES
dc.DrawLine(50, 230, 200, 230);
dc.DrawText(_T("This is a test string"), 50, 230);
wxPoint points[3];
points[0].x = 200; points[0].y = 300;
points[1].x = 100; points[1].y = 400;
points[2].x = 300; points[2].y = 400;
dc.DrawPolygon(3, points);
}
// This implements a tiny doodling program! Drag the mouse using the left
// button.
void MyCanvas::OnEvent(wxMouseEvent& event)
{
wxClientDC dc(this);
PrepareDC(dc);
wxPoint pt(event.GetLogicalPosition(dc));
if (xpos > -1 && ypos > -1 && event.Dragging())
{
dc.SetPen(*wxBLACK_PEN);
dc.DrawLine(xpos, ypos, pt.x, pt.y);
m_dirty = true;
}
xpos = pt.x;
ypos = pt.y;
}
// ---------------------------------------------------------------------------
// MyChild
// ---------------------------------------------------------------------------
MyChild::MyChild(wxMDIParentFrame *parent, const wxString& title)
: wxMDIChildFrame(parent, wxID_ANY, title, wxDefaultPosition, wxDefaultSize,
wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
{
canvas = (MyCanvas *) NULL;
my_children.Append(this);
// this should work for MDI frames as well as for normal ones
SetSizeHints(100, 100);
}
MyChild::~MyChild()
{
my_children.DeleteObject(this);
}
void MyChild::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close(true);
}
void MyChild::OnRefresh(wxCommandEvent& WXUNUSED(event))
{
if ( canvas )
canvas->Refresh();
}
void MyChild::OnChangePosition(wxCommandEvent& WXUNUSED(event))
{
Move(10, 10);
}
void MyChild::OnChangeSize(wxCommandEvent& WXUNUSED(event))
{
SetClientSize(100, 100);
}
void MyChild::OnChangeTitle(wxCommandEvent& WXUNUSED(event))
{
//#if wxUSE_TEXTDLG
static wxString s_title = _T("Canvas Frame");
wxString title = wxGetTextFromUser(_T("Enter the new title for MDI child"),
_T("MDI sample question"),
s_title,
GetParent()->GetParent());
if ( !title )
return;
s_title = title;
SetTitle(s_title);
//#endif
}
void MyChild::OnActivate(wxActivateEvent& event)
{
if ( event.GetActive() && canvas )
canvas->SetFocus();
}
void MyChild::OnMove(wxMoveEvent& event)
{
// VZ: here everything is totally wrong under MSW, the positions are
// different and both wrong (pos2 is off by 2 pixels for me which seems
// to be the width of the MDI canvas border)
wxPoint pos1 = event.GetPosition(),
pos2 = GetPosition();
wxLogStatus(wxT("position from event: (%d, %d), from frame (%d, %d)"),
pos1.x, pos1.y, pos2.x, pos2.y);
event.Skip();
}
void MyChild::OnSize(wxSizeEvent& event)
{
// VZ: under MSW the size event carries the client size (quite
// unexpectedly) *except* for the very first one which has the full
// size... what should it really be? TODO: check under wxGTK
wxSize size1 = event.GetSize(),
size2 = GetSize(),
size3 = GetClientSize();
wxLogStatus(wxT("size from event: %dx%d, from frame %dx%d, client %dx%d"),
size1.x, size1.y, size2.x, size2.y, size3.x, size3.y);
event.Skip();
}
void MyChild::OnClose(wxCloseEvent& event)
{
if ( canvas && canvas->IsDirty() )
{
if ( wxMessageBox(_T("Really close?"), _T("Please confirm"),
wxICON_QUESTION | wxYES_NO) != wxYES )
{
event.Veto();
return;
}
}
gs_nFrames--;
event.Skip();
}