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 and Markus Holzem
// 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(__WXGTK__) || defined(__WXMOTIF__)
#include "mondrian.xpm"
#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"
#endif
#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_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, -1, "MDI Demo",
wxPoint(-1, -1), wxSize(500, 400),
wxDEFAULT_FRAME_STYLE | wxHSCROLL | wxVSCROLL);
// Give it an icon
#ifdef __WXMSW__
frame->SetIcon(wxIcon("mdi_icn"));
#else
frame->SetIcon(wxIcon( mondrian_xpm ));
#endif
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(MDI_NEW_WINDOW, "&New window", "Create a new child window");
file_menu->Append(MDI_QUIT, "&Exit", "Quit the program");
wxMenu *help_menu = new wxMenu;
help_menu->Append(MDI_ABOUT, "&About");
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, "&File");
menu_bar->Append(help_menu, "&Help");
// Associate the menu bar with the frame
frame->SetMenuBar(menu_bar);
frame->CreateStatusBar();
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)
{
textWindow = new wxTextCtrl(this, -1, "A help window",
wxDefaultPosition, wxDefaultSize,
wxTE_MULTILINE | wxSUNKEN_BORDER);
CreateToolBar(wxNO_BORDER | wxTB_FLAT | wxTB_HORIZONTAL);
InitToolBar(GetToolBar());
// 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);
}
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, "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("wxWindows 2.0 MDI Demo\n"
"Author: Julian Smart (c) 1997\n"
"Usage: mdi.exe", "About MDI Demo");
}
void MyFrame::OnNewWindow(wxCommandEvent& WXUNUSED(event) )
{
// Make another frame, containing a canvas
MyChild *subframe = new MyChild(frame, "Canvas Frame",
wxPoint(-1, -1), wxSize(-1, -1),
wxDEFAULT_FRAME_STYLE);
wxString title;
title.Printf(_T("Canvas Frame %d"), ++gs_nFrames);
subframe->SetTitle(title);
// Give it an icon
#ifdef __WXMSW__
subframe->SetIcon(wxIcon("chrt_icn"));
#else
subframe->SetIcon(wxIcon( mondrian_xpm ));
#endif
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(MDI_NEW_WINDOW, "&New window");
file_menu->Append(MDI_CHILD_QUIT, "&Close child", "Close this window");
file_menu->Append(MDI_QUIT, "&Exit");
wxMenu *option_menu = new wxMenu;
// Dummy option
option_menu->Append(MDI_REFRESH, "&Refresh picture");
wxMenu *help_menu = new wxMenu;
help_menu->Append(MDI_ABOUT, "&About");
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, "&File");
menu_bar->Append(option_menu, "&Options");
menu_bar->Append(help_menu, "&Help");
// Associate the menu bar with the frame
subframe->SetMenuBar(menu_bar);
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->CreateStatusBar();
subframe->SetStatusText(title);
subframe->Show(TRUE);
}
void MyFrame::OnSize(wxSizeEvent& WXUNUSED(event))
{
int w, h;
GetClientSize(&w, &h);
textWindow->SetSize(0, 0, 200, h);
GetClientWindow()->SetSize(200, 0, w - 200, h);
}
void MyFrame::InitToolBar(wxToolBar* toolBar)
{
wxBitmap* bitmaps[8];
#ifdef __WXMSW__
bitmaps[0] = new wxBitmap("icon1", wxBITMAP_TYPE_RESOURCE);
bitmaps[1] = new wxBitmap("icon2", wxBITMAP_TYPE_RESOURCE);
bitmaps[2] = new wxBitmap("icon3", wxBITMAP_TYPE_RESOURCE);
bitmaps[3] = new wxBitmap("icon4", wxBITMAP_TYPE_RESOURCE);
bitmaps[4] = new wxBitmap("icon5", wxBITMAP_TYPE_RESOURCE);
bitmaps[5] = new wxBitmap("icon6", wxBITMAP_TYPE_RESOURCE);
bitmaps[6] = new wxBitmap("icon7", wxBITMAP_TYPE_RESOURCE);
bitmaps[7] = new wxBitmap("icon8", wxBITMAP_TYPE_RESOURCE);
#else
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 );
#endif
#ifdef __WXMSW__
int width = 24;
#else
int width = 16;
#endif
int currentX = 5;
toolBar->AddTool( MDI_NEW_WINDOW, *(bitmaps[0]), wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "New file");
currentX += width + 5;
toolBar->AddTool(1, *bitmaps[1], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Open file");
currentX += width + 5;
toolBar->AddTool(2, *bitmaps[2], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Save file");
currentX += width + 5;
toolBar->AddSeparator();
toolBar->AddTool(3, *bitmaps[3], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Copy");
currentX += width + 5;
toolBar->AddTool(4, *bitmaps[4], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Cut");
currentX += width + 5;
toolBar->AddTool(5, *bitmaps[5], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Paste");
currentX += width + 5;
toolBar->AddSeparator();
toolBar->AddTool(6, *bitmaps[6], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Print");
currentX += width + 5;
toolBar->AddSeparator();
toolBar->AddTool(7, *bitmaps[7], wxNullBitmap, TRUE, currentX, -1, (wxObject *) NULL, "Help");
toolBar->Realize();
int i;
for (i = 0; i < 8; i++)
delete bitmaps[i];
}
// ---------------------------------------------------------------------------
// MyCanvas
// ---------------------------------------------------------------------------
// Define a constructor for my canvas
MyCanvas::MyCanvas(wxWindow *parent, const wxPoint& pos, const wxSize& size)
: wxScrolledWindow(parent, -1, pos, size,
wxSUNKEN_BORDER|wxVSCROLL|wxHSCROLL)
{
SetBackgroundColour(wxColour("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);
dc.DrawSpline(50, 200, 50, 100, 200, 10);
dc.DrawLine(50, 230, 200, 230);
dc.DrawText("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,
const wxPoint& pos, const wxSize& size,
const long style)
: wxMDIChildFrame(parent, -1, title, pos, size, style)
{
canvas = (MyCanvas *) NULL;
my_children.Append(this);
}
MyChild::~MyChild()
{
my_children.DeleteObject(this);
}
void MyChild::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close(TRUE);
}
void MyChild::OnRefresh(wxCommandEvent& event)
{
Refresh();
}
void MyChild::OnActivate(wxActivateEvent& event)
{
if ( event.GetActive() && canvas )
canvas->SetFocus();
}
void MyChild::OnClose(wxCloseEvent& event)
{
if ( canvas && canvas->IsDirty() )
{
if ( wxMessageBox("Really close?", "Please confirm",
wxICON_QUESTION | wxYES_NO) != wxYES )
{
event.Veto();
return;
}
}
gs_nFrames--;
event.Skip();
}