c17e495529
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6551 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1013 lines
27 KiB
C++
1013 lines
27 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: life.cpp
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// Purpose: The game of Life, created by J. H. Conway
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// Author: Guillermo Rodriguez Garcia, <guille@iies.es>
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// Modified by:
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// Created: Jan/2000
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// RCS-ID: $Id$
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// Copyright: (c) 2000, Guillermo Rodriguez Garcia
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ==========================================================================
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// headers, declarations, constants
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// ==========================================================================
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#ifdef __GNUG__
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#pragma implementation "life.h"
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#endif
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/statline.h"
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#include "life.h"
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#include "game.h"
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#include "dialogs.h"
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// --------------------------------------------------------------------------
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// resources
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// --------------------------------------------------------------------------
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#if defined(__WXGTK__) || defined(__WXMOTIF__)
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// application icon
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#include "mondrian.xpm"
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// bitmap buttons for the toolbar
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#include "bitmaps/reset.xpm"
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#include "bitmaps/play.xpm"
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#include "bitmaps/stop.xpm"
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#include "bitmaps/zoomin.xpm"
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#include "bitmaps/zoomout.xpm"
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// navigator
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#include "bitmaps/north.xpm"
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#include "bitmaps/south.xpm"
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#include "bitmaps/east.xpm"
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#include "bitmaps/west.xpm"
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#include "bitmaps/center.xpm"
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#endif
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// --------------------------------------------------------------------------
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// constants
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// --------------------------------------------------------------------------
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// IDs for the controls and the menu commands
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enum
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{
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// timer
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ID_TIMER = 1001,
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// menu items and toolbar buttons
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ID_RESET,
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ID_SAMPLES,
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ID_ABOUT,
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ID_EXIT,
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ID_START,
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ID_STEP,
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ID_STOP,
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ID_ZOOMIN,
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ID_ZOOMOUT,
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ID_TOPSPEED,
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// speed selection slider
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ID_SLIDER,
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// navigation
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ID_SHOWNAV,
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ID_ORIGIN,
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ID_CENTER,
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ID_NORTH,
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ID_SOUTH,
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ID_EAST,
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ID_WEST,
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};
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// --------------------------------------------------------------------------
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// event tables and other macros for wxWindows
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// --------------------------------------------------------------------------
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// Event tables
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BEGIN_EVENT_TABLE(LifeFrame, wxFrame)
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EVT_MENU (ID_SAMPLES, LifeFrame::OnSamples)
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EVT_MENU (ID_RESET, LifeFrame::OnMenu)
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EVT_MENU (ID_ABOUT, LifeFrame::OnMenu)
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EVT_MENU (ID_EXIT, LifeFrame::OnMenu)
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EVT_MENU (ID_START, LifeFrame::OnMenu)
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EVT_MENU (ID_STEP, LifeFrame::OnMenu)
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EVT_MENU (ID_STOP, LifeFrame::OnMenu)
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EVT_MENU (ID_TOPSPEED, LifeFrame::OnMenu)
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EVT_MENU (ID_SHOWNAV, LifeFrame::OnMenu)
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EVT_MENU (ID_ORIGIN, LifeFrame::OnNavigate)
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EVT_BUTTON (ID_CENTER, LifeFrame::OnNavigate)
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EVT_BUTTON (ID_NORTH, LifeFrame::OnNavigate)
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EVT_BUTTON (ID_SOUTH, LifeFrame::OnNavigate)
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EVT_BUTTON (ID_EAST, LifeFrame::OnNavigate)
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EVT_BUTTON (ID_WEST, LifeFrame::OnNavigate)
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EVT_MENU (ID_ZOOMIN, LifeFrame::OnZoom)
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EVT_MENU (ID_ZOOMOUT, LifeFrame::OnZoom)
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EVT_COMMAND_SCROLL (ID_SLIDER, LifeFrame::OnSlider)
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EVT_TIMER (ID_TIMER, LifeFrame::OnTimer)
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EVT_CLOSE ( LifeFrame::OnClose)
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END_EVENT_TABLE()
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BEGIN_EVENT_TABLE(LifeNavigator, wxMiniFrame)
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EVT_CLOSE ( LifeNavigator::OnClose)
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END_EVENT_TABLE()
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BEGIN_EVENT_TABLE(LifeCanvas, wxWindow)
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EVT_PAINT ( LifeCanvas::OnPaint)
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EVT_SCROLLWIN ( LifeCanvas::OnScroll)
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EVT_SIZE ( LifeCanvas::OnSize)
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EVT_MOUSE_EVENTS ( LifeCanvas::OnMouse)
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EVT_ERASE_BACKGROUND( LifeCanvas::OnEraseBackground)
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END_EVENT_TABLE()
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// Create a new application object
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IMPLEMENT_APP(LifeApp)
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// ==========================================================================
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// implementation
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// ==========================================================================
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// some shortcuts
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#define ADD_TOOL(id, bmp, tooltip, help) \
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toolBar->AddTool(id, bmp, wxNullBitmap, FALSE, -1, -1, (wxObject *)0, tooltip, help)
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// --------------------------------------------------------------------------
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// LifeApp
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// --------------------------------------------------------------------------
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// 'Main program' equivalent: the program execution "starts" here
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bool LifeApp::OnInit()
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{
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// create the main application window
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LifeFrame *frame = new LifeFrame();
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// show it and tell the application that it's our main window
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frame->Show(TRUE);
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SetTopWindow(frame);
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// enter the main message loop and run the app
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return TRUE;
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}
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// --------------------------------------------------------------------------
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// LifeFrame
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// --------------------------------------------------------------------------
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// frame constructor
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LifeFrame::LifeFrame() : wxFrame((wxFrame *)0, -1, _("Life!"), wxPoint(200, 200))
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{
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// frame icon
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SetIcon(wxICON(mondrian));
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// menu bar
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wxMenu *menuFile = new wxMenu("", wxMENU_TEAROFF);
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wxMenu *menuView = new wxMenu("", wxMENU_TEAROFF);
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wxMenu *menuGame = new wxMenu("", wxMENU_TEAROFF);
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menuFile->Append(ID_RESET, _("Reset"), _("Start a new game"));
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menuFile->Append(ID_SAMPLES, _("Sample game..."), _("Select a sample configuration"));
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menuFile->AppendSeparator();
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menuFile->Append(ID_ABOUT, _("&About...\tCtrl-A"), _("Show about dialog"));
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menuFile->AppendSeparator();
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menuFile->Append(ID_EXIT, _("E&xit\tAlt-X"), _("Quit this program"));
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menuView->Append(ID_SHOWNAV, _("Navigation toolbox"), _("Show or hide toolbox"), TRUE);
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menuView->Check (ID_SHOWNAV, TRUE);
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menuView->AppendSeparator();
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menuView->Append(ID_ORIGIN, _("Absolute origin"), _("Go to (0, 0)"));
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menuView->Append(ID_CENTER, _("Center of mass"), _("Find center of mass"));
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menuView->Append(ID_NORTH, _("North"), _("Find northernmost cell"));
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menuView->Append(ID_SOUTH, _("South"), _("Find southernmost cell"));
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menuView->Append(ID_EAST, _("East"), _("Find easternmost cell"));
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menuView->Append(ID_WEST, _("West"), _("Find westernmost cell"));
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menuView->AppendSeparator();
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menuView->Append(ID_ZOOMIN, _("Zoom &in\tCtrl-I"));
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menuView->Append(ID_ZOOMOUT, _("Zoom &out\tCtrl-O"));
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menuGame->Append(ID_START, _("&Start\tCtrl-S"), _("Start"));
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menuGame->Append(ID_STEP, _("&Next\tCtrl-N"), _("Single step"));
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menuGame->Append(ID_STOP, _("S&top\tCtrl-T"), _("Stop"));
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menuGame->Enable(ID_STOP, FALSE);
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menuGame->AppendSeparator();
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menuGame->Append(ID_TOPSPEED, _("Top speed!"), _("Go as fast as possible"));
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wxMenuBar *menuBar = new wxMenuBar();
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menuBar->Append(menuFile, _("&File"));
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menuBar->Append(menuView, _("&View"));
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menuBar->Append(menuGame, _("&Game"));
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SetMenuBar(menuBar);
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// tool bar
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wxBitmap tbBitmaps[5];
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tbBitmaps[0] = wxBITMAP(reset);
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tbBitmaps[1] = wxBITMAP(play);
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tbBitmaps[2] = wxBITMAP(stop);
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tbBitmaps[3] = wxBITMAP(zoomin);
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tbBitmaps[4] = wxBITMAP(zoomout);
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wxToolBar *toolBar = CreateToolBar();
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toolBar->SetMargins(5, 5);
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toolBar->SetToolBitmapSize(wxSize(16, 16));
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ADD_TOOL(ID_RESET, tbBitmaps[0], _("Reset"), _("Start a new game"));
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ADD_TOOL(ID_START, tbBitmaps[1], _("Start"), _("Start"));
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ADD_TOOL(ID_STOP, tbBitmaps[2], _("Stop"), _("Stop"));
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toolBar->AddSeparator();
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ADD_TOOL(ID_ZOOMIN, tbBitmaps[3], _("Zoom in"), _("Zoom in"));
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ADD_TOOL(ID_ZOOMOUT, tbBitmaps[4], _("Zoom out"), _("Zoom out"));
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toolBar->Realize();
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toolBar->EnableTool(ID_STOP, FALSE); // must be after Realize() !
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// status bar
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CreateStatusBar(2);
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SetStatusText(_("Welcome to Life!"));
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// game and timer
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m_life = new Life();
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m_timer = new wxTimer(this, ID_TIMER);
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m_running = FALSE;
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m_topspeed = FALSE;
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m_interval = 500;
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m_tics = 0;
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// We use two different panels to reduce flicker in wxGTK, because
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// some widgets (like wxStaticText) don't have their own X11 window,
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// and thus updating the text would result in a refresh of the canvas
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// if they belong to the same parent.
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wxPanel *panel1 = new wxPanel(this, -1);
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wxPanel *panel2 = new wxPanel(this, -1);
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// canvas
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m_canvas = new LifeCanvas(panel1, m_life);
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// info panel
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m_text = new wxStaticText(panel2, -1,
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wxEmptyString,
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wxDefaultPosition,
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wxDefaultSize,
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wxALIGN_CENTER | wxST_NO_AUTORESIZE);
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wxSlider *slider = new wxSlider(panel2, ID_SLIDER,
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5, 1, 10,
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wxDefaultPosition,
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wxSize(200, -1),
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wxSL_HORIZONTAL | wxSL_AUTOTICKS);
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UpdateInfoText();
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// component layout
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wxBoxSizer *sizer1 = new wxBoxSizer(wxVERTICAL);
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wxBoxSizer *sizer2 = new wxBoxSizer(wxVERTICAL);
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wxBoxSizer *sizer3 = new wxBoxSizer(wxVERTICAL);
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sizer1->Add( new wxStaticLine(panel1, -1), 0, wxGROW );
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sizer1->Add( m_canvas, 1, wxGROW | wxALL, 2 );
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sizer1->Add( new wxStaticLine(panel1, -1), 0, wxGROW );
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panel1->SetSizer( sizer1 );
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panel1->SetAutoLayout( TRUE );
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sizer1->Fit( panel1 );
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sizer2->Add( m_text, 0, wxGROW | wxTOP, 4 );
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sizer2->Add( slider, 0, wxCENTRE | wxALL, 4 );
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panel2->SetSizer( sizer2 );
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panel2->SetAutoLayout( TRUE );
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sizer2->Fit( panel2 );
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sizer3->Add( panel1, 1, wxGROW );
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sizer3->Add( panel2, 0, wxGROW );
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SetSizer( sizer3 );
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SetAutoLayout( TRUE );
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sizer3->Fit( this );
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// set minimum frame size
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sizer3->SetSizeHints( this );
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// navigator frame
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m_navigator = new LifeNavigator(this);
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}
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LifeFrame::~LifeFrame()
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{
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delete m_timer;
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}
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void LifeFrame::UpdateInfoText()
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{
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wxString msg;
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msg.Printf(_(" Generation: %u (T: %u ms), Population: %u "),
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m_tics,
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m_topspeed? 0 : m_interval,
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m_life->GetNumCells());
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m_text->SetLabel(msg);
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}
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// Enable or disable tools and menu entries according to the current
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// state. See also wxEVT_UPDATE_UI events for a slightly different
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// way to do this.
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void LifeFrame::UpdateUI()
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{
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// start / stop
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GetToolBar()->EnableTool(ID_START, !m_running);
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GetToolBar()->EnableTool(ID_STOP, m_running);
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GetMenuBar()->GetMenu(2)->Enable(ID_START, !m_running);
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GetMenuBar()->GetMenu(2)->Enable(ID_STEP, !m_running);
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GetMenuBar()->GetMenu(2)->Enable(ID_STOP, m_running);
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// zooming
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int cellsize = m_canvas->GetCellSize();
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GetToolBar()->EnableTool(ID_ZOOMIN, cellsize < 32);
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GetToolBar()->EnableTool(ID_ZOOMOUT, cellsize > 1);
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GetMenuBar()->GetMenu(1)->Enable(ID_ZOOMIN, cellsize < 32);
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GetMenuBar()->GetMenu(1)->Enable(ID_ZOOMOUT, cellsize > 1);
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}
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// event handlers
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void LifeFrame::OnMenu(wxCommandEvent& event)
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{
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switch (event.GetId())
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{
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case ID_START : OnStart(); break;
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case ID_STEP : OnStep(); break;
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case ID_STOP : OnStop(); break;
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case ID_SHOWNAV :
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{
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bool checked = GetMenuBar()->GetMenu(1)->IsChecked(ID_SHOWNAV);
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m_navigator->Show(checked);
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break;
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}
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case ID_TOPSPEED:
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{
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m_running = TRUE;
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m_topspeed = TRUE;
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UpdateUI();
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while (m_running && m_topspeed)
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{
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OnStep();
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wxYield();
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}
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break;
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}
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case ID_RESET:
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{
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// stop if it was running
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OnStop();
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m_life->Clear();
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m_canvas->Recenter(0, 0);
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m_tics = 0;
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UpdateInfoText();
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break;
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}
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case ID_ABOUT:
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{
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LifeAboutDialog dialog(this);
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dialog.ShowModal();
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break;
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}
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case ID_EXIT :
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{
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// TRUE is to force the frame to close
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Close(TRUE);
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break;
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}
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}
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}
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void LifeFrame::OnClose(wxCloseEvent& WXUNUSED(event))
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{
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// Stop if it was running; this is absolutely needed because
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// the frame won't be actually destroyed until there are no
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// more pending events, and this in turn won't ever happen
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// if the timer is running faster than the window can redraw.
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OnStop();
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Destroy();
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}
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void LifeFrame::OnSamples(wxCommandEvent& WXUNUSED(event))
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{
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// stop if it was running
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OnStop();
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// dialog box
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LifeSamplesDialog dialog(this);
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if (dialog.ShowModal() == wxID_OK)
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{
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const LifeShape shape = dialog.GetShape();
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// put the shape
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m_life->Clear();
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m_life->SetShape(shape);
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// recenter canvas
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m_canvas->Recenter(0, 0);
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m_tics = 0;
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UpdateInfoText();
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}
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}
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void LifeFrame::OnZoom(wxCommandEvent& event)
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{
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int cellsize = m_canvas->GetCellSize();
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if ((event.GetId() == ID_ZOOMIN) && cellsize < 32)
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{
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m_canvas->SetCellSize(cellsize * 2);
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UpdateUI();
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}
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else if ((event.GetId() == ID_ZOOMOUT) && cellsize > 1)
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{
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m_canvas->SetCellSize(cellsize / 2);
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UpdateUI();
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}
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}
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void LifeFrame::OnNavigate(wxCommandEvent& event)
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{
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Cell c;
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switch (event.GetId())
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{
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case ID_NORTH: c = m_life->FindNorth(); break;
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case ID_SOUTH: c = m_life->FindSouth(); break;
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case ID_WEST: c = m_life->FindWest(); break;
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case ID_EAST: c = m_life->FindEast(); break;
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case ID_CENTER: c = m_life->FindCenter(); break;
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case ID_ORIGIN: c.i = c.j = 0; break;
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}
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m_canvas->Recenter(c.i, c.j);
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}
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void LifeFrame::OnSlider(wxScrollEvent& event)
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{
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m_interval = event.GetPosition() * 100;
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if (m_running)
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{
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OnStop();
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OnStart();
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}
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UpdateInfoText();
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}
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void LifeFrame::OnTimer(wxTimerEvent& WXUNUSED(event))
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{
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OnStep();
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}
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void LifeFrame::OnStart()
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{
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if (!m_running)
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{
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m_timer->Start(m_interval);
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m_running = TRUE;
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UpdateUI();
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}
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}
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void LifeFrame::OnStop()
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{
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if (m_running)
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{
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m_timer->Stop();
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m_running = FALSE;
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m_topspeed = FALSE;
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UpdateUI();
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}
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}
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void LifeFrame::OnStep()
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{
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if (m_life->NextTic())
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m_tics++;
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else
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OnStop();
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m_canvas->DrawChanged();
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UpdateInfoText();
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}
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// --------------------------------------------------------------------------
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// LifeNavigator miniframe
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// --------------------------------------------------------------------------
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LifeNavigator::LifeNavigator(wxWindow *parent)
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: wxMiniFrame(parent, -1,
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_("Navigation"),
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wxDefaultPosition,
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wxDefaultSize,
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wxCAPTION | wxSIMPLE_BORDER)
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{
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wxPanel *panel = new wxPanel(this, -1);
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wxBoxSizer *sizer1 = new wxBoxSizer(wxVERTICAL);
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wxBoxSizer *sizer2 = new wxBoxSizer(wxHORIZONTAL);
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// create bitmaps and masks for the buttons
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wxBitmap
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bmpn = wxBITMAP(north),
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bmpw = wxBITMAP(west),
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bmpc = wxBITMAP(center),
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bmpe = wxBITMAP(east),
|
|
bmps = wxBITMAP(south);
|
|
|
|
#ifdef __WXMSW__
|
|
bmpn.SetMask(new wxMask(bmpn, *wxLIGHT_GREY));
|
|
bmpw.SetMask(new wxMask(bmpw, *wxLIGHT_GREY));
|
|
bmpc.SetMask(new wxMask(bmpc, *wxLIGHT_GREY));
|
|
bmpe.SetMask(new wxMask(bmpe, *wxLIGHT_GREY));
|
|
bmps.SetMask(new wxMask(bmps, *wxLIGHT_GREY));
|
|
#endif
|
|
|
|
// create the buttons and attach tooltips to them
|
|
wxBitmapButton
|
|
*bn = new wxBitmapButton(panel, ID_NORTH, bmpn),
|
|
*bw = new wxBitmapButton(panel, ID_WEST , bmpw),
|
|
*bc = new wxBitmapButton(panel, ID_CENTER, bmpc),
|
|
*be = new wxBitmapButton(panel, ID_EAST , bmpe),
|
|
*bs = new wxBitmapButton(panel, ID_SOUTH, bmps);
|
|
|
|
bn->SetToolTip(_("Find northernmost cell"));
|
|
bw->SetToolTip(_("Find westernmost cell"));
|
|
bc->SetToolTip(_("Find center of mass"));
|
|
be->SetToolTip(_("Find easternmost cell"));
|
|
bs->SetToolTip(_("Find southernmost cell"));
|
|
|
|
// add buttons to sizers
|
|
sizer2->Add( bw, 0, wxCENTRE | wxWEST, 4 );
|
|
sizer2->Add( bc, 0, wxCENTRE);
|
|
sizer2->Add( be, 0, wxCENTRE | wxEAST, 4 );
|
|
sizer1->Add( bn, 0, wxCENTRE | wxNORTH, 4 );
|
|
sizer1->Add( sizer2 );
|
|
sizer1->Add( bs, 0, wxCENTRE | wxSOUTH, 4 );
|
|
|
|
// set the miniframe size
|
|
panel->SetSizer(sizer1);
|
|
panel->SetAutoLayout(TRUE);
|
|
sizer1->Fit(this);
|
|
sizer1->SetSizeHints(this);
|
|
|
|
// move it to a sensible position
|
|
wxRect parentRect = parent->GetRect();
|
|
wxSize childSize = GetSize();
|
|
int x = parentRect.GetX() +
|
|
parentRect.GetWidth();
|
|
int y = parentRect.GetY() +
|
|
(parentRect.GetHeight() - childSize.GetHeight()) / 4;
|
|
Move(x, y);
|
|
|
|
// done
|
|
Show(TRUE);
|
|
}
|
|
|
|
void LifeNavigator::OnClose(wxCloseEvent& event)
|
|
{
|
|
if (event.CanVeto())
|
|
event.Veto();
|
|
else
|
|
Destroy();
|
|
}
|
|
|
|
|
|
// --------------------------------------------------------------------------
|
|
// LifeCanvas
|
|
// --------------------------------------------------------------------------
|
|
|
|
// canvas constructor
|
|
LifeCanvas::LifeCanvas(wxWindow *parent, Life *life, bool interactive)
|
|
: wxWindow(parent, -1, wxPoint(0, 0), wxSize(100, 100),
|
|
wxSUNKEN_BORDER)
|
|
{
|
|
m_life = life;
|
|
m_interactive = interactive;
|
|
m_cellsize = 8;
|
|
m_status = MOUSE_NOACTION;
|
|
m_viewportX = 0;
|
|
m_viewportY = 0;
|
|
m_viewportH = 0;
|
|
m_viewportW = 0;
|
|
|
|
if (m_interactive)
|
|
SetCursor(*wxCROSS_CURSOR);
|
|
|
|
// reduce flicker if wxEVT_ERASE_BACKGROUND is not available
|
|
SetBackgroundColour(*wxWHITE);
|
|
}
|
|
|
|
LifeCanvas::~LifeCanvas()
|
|
{
|
|
delete m_life;
|
|
}
|
|
|
|
// recenter at the given position
|
|
void LifeCanvas::Recenter(wxInt32 i, wxInt32 j)
|
|
{
|
|
m_viewportX = i - m_viewportW / 2;
|
|
m_viewportY = j - m_viewportH / 2;
|
|
|
|
// redraw everything
|
|
Refresh(FALSE);
|
|
}
|
|
|
|
// set the cell size and refresh display
|
|
void LifeCanvas::SetCellSize(int cellsize)
|
|
{
|
|
m_cellsize = cellsize;
|
|
|
|
// find current center
|
|
wxInt32 cx = m_viewportX + m_viewportW / 2;
|
|
wxInt32 cy = m_viewportY + m_viewportH / 2;
|
|
|
|
// get current canvas size and adjust viewport accordingly
|
|
int w, h;
|
|
GetClientSize(&w, &h);
|
|
m_viewportW = (w + m_cellsize - 1) / m_cellsize;
|
|
m_viewportH = (h + m_cellsize - 1) / m_cellsize;
|
|
|
|
// recenter
|
|
m_viewportX = cx - m_viewportW / 2;
|
|
m_viewportY = cy - m_viewportH / 2;
|
|
|
|
// adjust scrollbars
|
|
if (m_interactive)
|
|
{
|
|
SetScrollbar(wxHORIZONTAL, m_viewportW, m_viewportW, 3 * m_viewportW);
|
|
SetScrollbar(wxVERTICAL, m_viewportH, m_viewportH, 3 * m_viewportH);
|
|
m_thumbX = m_viewportW;
|
|
m_thumbY = m_viewportH;
|
|
}
|
|
|
|
Refresh(FALSE);
|
|
}
|
|
|
|
// draw a cell
|
|
void LifeCanvas::DrawCell(wxInt32 i, wxInt32 j, bool alive)
|
|
{
|
|
wxClientDC dc(this);
|
|
|
|
dc.SetPen(alive? *wxBLACK_PEN : *wxWHITE_PEN);
|
|
dc.SetBrush(alive? *wxBLACK_BRUSH : *wxWHITE_BRUSH);
|
|
|
|
dc.BeginDrawing();
|
|
DrawCell(i, j, dc);
|
|
dc.EndDrawing();
|
|
}
|
|
|
|
void LifeCanvas::DrawCell(wxInt32 i, wxInt32 j, wxDC &dc)
|
|
{
|
|
wxCoord x = CellToX(i);
|
|
wxCoord y = CellToY(j);
|
|
|
|
// if cellsize is 1 or 2, there will be no grid
|
|
switch (m_cellsize)
|
|
{
|
|
case 1:
|
|
dc.DrawPoint(x, y);
|
|
break;
|
|
case 2:
|
|
dc.DrawRectangle(x, y, 2, 2);
|
|
break;
|
|
default:
|
|
dc.DrawRectangle(x + 1, y + 1, m_cellsize - 1, m_cellsize - 1);
|
|
}
|
|
}
|
|
|
|
// draw all changed cells
|
|
void LifeCanvas::DrawChanged()
|
|
{
|
|
wxClientDC dc(this);
|
|
|
|
size_t ncells;
|
|
Cell *cells;
|
|
bool done = FALSE;
|
|
|
|
m_life->BeginFind(m_viewportX,
|
|
m_viewportY,
|
|
m_viewportX + m_viewportW,
|
|
m_viewportY + m_viewportH,
|
|
TRUE);
|
|
|
|
dc.BeginDrawing();
|
|
|
|
if (m_cellsize == 1)
|
|
{
|
|
dc.SetPen(*wxBLACK_PEN);
|
|
}
|
|
else
|
|
{
|
|
dc.SetPen(*wxTRANSPARENT_PEN);
|
|
dc.SetBrush(*wxBLACK_BRUSH);
|
|
}
|
|
dc.SetLogicalFunction(wxINVERT);
|
|
|
|
while (!done)
|
|
{
|
|
done = m_life->FindMore(&cells, &ncells);
|
|
|
|
for (size_t m = 0; m < ncells; m++)
|
|
DrawCell(cells[m].i, cells[m].j, dc);
|
|
}
|
|
dc.EndDrawing();
|
|
}
|
|
|
|
// event handlers
|
|
void LifeCanvas::OnPaint(wxPaintEvent& event)
|
|
{
|
|
wxPaintDC dc(this);
|
|
wxRect rect = GetUpdateRegion().GetBox();
|
|
wxCoord x, y, w, h;
|
|
wxInt32 i0, j0, i1, j1;
|
|
|
|
// find damaged area
|
|
x = rect.GetX();
|
|
y = rect.GetY();
|
|
w = rect.GetWidth();
|
|
h = rect.GetHeight();
|
|
|
|
i0 = XToCell(x);
|
|
j0 = YToCell(y);
|
|
i1 = XToCell(x + w - 1);
|
|
j1 = YToCell(y + h - 1);
|
|
|
|
size_t ncells;
|
|
Cell *cells;
|
|
bool done = FALSE;
|
|
|
|
m_life->BeginFind(i0, j0, i1, j1, FALSE);
|
|
done = m_life->FindMore(&cells, &ncells);
|
|
|
|
// erase all damaged cells and draw the grid
|
|
dc.BeginDrawing();
|
|
dc.SetBrush(*wxWHITE_BRUSH);
|
|
|
|
if (m_cellsize <= 2)
|
|
{
|
|
// no grid
|
|
dc.SetPen(*wxWHITE_PEN);
|
|
dc.DrawRectangle(x, y, w, h);
|
|
}
|
|
else
|
|
{
|
|
x = CellToX(i0);
|
|
y = CellToY(j0);
|
|
w = CellToX(i1 + 1) - x + 1;
|
|
h = CellToY(j1 + 1) - y + 1;
|
|
|
|
dc.SetPen(*wxLIGHT_GREY_PEN);
|
|
for (wxInt32 yy = y; yy <= (y + h - m_cellsize); yy += m_cellsize)
|
|
dc.DrawRectangle(x, yy, w, m_cellsize + 1);
|
|
for (wxInt32 xx = x; xx <= (x + w - m_cellsize); xx += m_cellsize)
|
|
dc.DrawLine(xx, y, xx, y + h);
|
|
}
|
|
|
|
// draw all alive cells
|
|
dc.SetPen(*wxBLACK_PEN);
|
|
dc.SetBrush(*wxBLACK_BRUSH);
|
|
|
|
while (!done)
|
|
{
|
|
for (size_t m = 0; m < ncells; m++)
|
|
DrawCell(cells[m].i, cells[m].j, dc);
|
|
|
|
done = m_life->FindMore(&cells, &ncells);
|
|
}
|
|
|
|
// last set
|
|
for (size_t m = 0; m < ncells; m++)
|
|
DrawCell(cells[m].i, cells[m].j, dc);
|
|
|
|
dc.EndDrawing();
|
|
}
|
|
|
|
void LifeCanvas::OnMouse(wxMouseEvent& event)
|
|
{
|
|
if (!m_interactive)
|
|
return;
|
|
|
|
// which cell are we pointing at?
|
|
wxInt32 i = XToCell( event.GetX() );
|
|
wxInt32 j = YToCell( event.GetY() );
|
|
|
|
// set statusbar text
|
|
wxString msg;
|
|
msg.Printf(_("Cell: (%d, %d)"), i, j);
|
|
((LifeFrame *) wxGetApp().GetTopWindow())->SetStatusText(msg, 1);
|
|
|
|
// button pressed?
|
|
if (!event.LeftIsDown())
|
|
{
|
|
m_status = MOUSE_NOACTION;
|
|
return;
|
|
}
|
|
|
|
// button just pressed?
|
|
if (m_status == MOUSE_NOACTION)
|
|
{
|
|
// yes, update status and toggle this cell
|
|
m_status = (m_life->IsAlive(i, j)? MOUSE_ERASING : MOUSE_DRAWING);
|
|
|
|
m_mi = i;
|
|
m_mj = j;
|
|
m_life->SetCell(i, j, m_status == MOUSE_DRAWING);
|
|
DrawCell(i, j, m_status == MOUSE_DRAWING);
|
|
}
|
|
else if ((m_mi != i) || (m_mj != j))
|
|
{
|
|
bool alive = (m_status == MOUSE_DRAWING);
|
|
|
|
// prepare DC and pen + brush to optimize drawing
|
|
wxClientDC dc(this);
|
|
dc.SetPen(alive? *wxBLACK_PEN : *wxWHITE_PEN);
|
|
dc.SetBrush(alive? *wxBLACK_BRUSH : *wxWHITE_BRUSH);
|
|
dc.BeginDrawing();
|
|
|
|
// draw a line of cells using Bresenham's algorithm
|
|
wxInt32 d, ii, jj, di, ai, si, dj, aj, sj;
|
|
di = i - m_mi;
|
|
ai = abs(di) << 1;
|
|
si = (di < 0)? -1 : 1;
|
|
dj = j - m_mj;
|
|
aj = abs(dj) << 1;
|
|
sj = (dj < 0)? -1 : 1;
|
|
|
|
ii = m_mi;
|
|
jj = m_mj;
|
|
|
|
if (ai > aj)
|
|
{
|
|
// iterate over i
|
|
d = aj - (ai >> 1);
|
|
|
|
while (ii != i)
|
|
{
|
|
m_life->SetCell(ii, jj, alive);
|
|
DrawCell(ii, jj, dc);
|
|
if (d >= 0)
|
|
{
|
|
jj += sj;
|
|
d -= ai;
|
|
}
|
|
ii += si;
|
|
d += aj;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// iterate over j
|
|
d = ai - (aj >> 1);
|
|
|
|
while (jj != j)
|
|
{
|
|
m_life->SetCell(ii, jj, alive);
|
|
DrawCell(ii, jj, dc);
|
|
if (d >= 0)
|
|
{
|
|
ii += si;
|
|
d -= aj;
|
|
}
|
|
jj += sj;
|
|
d += ai;
|
|
}
|
|
}
|
|
|
|
// last cell
|
|
m_life->SetCell(ii, jj, alive);
|
|
DrawCell(ii, jj, dc);
|
|
m_mi = ii;
|
|
m_mj = jj;
|
|
|
|
dc.EndDrawing();
|
|
}
|
|
|
|
((LifeFrame *) wxGetApp().GetTopWindow())->UpdateInfoText();
|
|
}
|
|
|
|
void LifeCanvas::OnSize(wxSizeEvent& event)
|
|
{
|
|
// find center
|
|
wxInt32 cx = m_viewportX + m_viewportW / 2;
|
|
wxInt32 cy = m_viewportY + m_viewportH / 2;
|
|
|
|
// get new size
|
|
wxCoord w = event.GetSize().GetX();
|
|
wxCoord h = event.GetSize().GetY();
|
|
m_viewportW = (w + m_cellsize - 1) / m_cellsize;
|
|
m_viewportH = (h + m_cellsize - 1) / m_cellsize;
|
|
|
|
// recenter
|
|
m_viewportX = cx - m_viewportW / 2;
|
|
m_viewportY = cy - m_viewportH / 2;
|
|
|
|
// scrollbars
|
|
if (m_interactive)
|
|
{
|
|
SetScrollbar(wxHORIZONTAL, m_viewportW, m_viewportW, 3 * m_viewportW);
|
|
SetScrollbar(wxVERTICAL, m_viewportH, m_viewportH, 3 * m_viewportH);
|
|
m_thumbX = m_viewportW;
|
|
m_thumbY = m_viewportH;
|
|
}
|
|
|
|
// allow default processing
|
|
event.Skip();
|
|
}
|
|
|
|
void LifeCanvas::OnScroll(wxScrollWinEvent& event)
|
|
{
|
|
WXTYPE type = event.GetEventType();
|
|
int pos = event.GetPosition();
|
|
int orient = event.GetOrientation();
|
|
|
|
// calculate scroll increment
|
|
int scrollinc = 0;
|
|
switch (type)
|
|
{
|
|
case wxEVT_SCROLLWIN_TOP:
|
|
{
|
|
if (orient == wxHORIZONTAL)
|
|
scrollinc = -m_viewportW;
|
|
else
|
|
scrollinc = -m_viewportH;
|
|
break;
|
|
}
|
|
case wxEVT_SCROLLWIN_BOTTOM:
|
|
{
|
|
if (orient == wxHORIZONTAL)
|
|
scrollinc = m_viewportW;
|
|
else
|
|
scrollinc = m_viewportH;
|
|
break;
|
|
}
|
|
case wxEVT_SCROLLWIN_LINEUP: scrollinc = -1; break;
|
|
case wxEVT_SCROLLWIN_LINEDOWN: scrollinc = +1; break;
|
|
case wxEVT_SCROLLWIN_PAGEUP: scrollinc = -10; break;
|
|
case wxEVT_SCROLLWIN_PAGEDOWN: scrollinc = +10; break;
|
|
case wxEVT_SCROLLWIN_THUMBTRACK:
|
|
{
|
|
if (orient == wxHORIZONTAL)
|
|
{
|
|
scrollinc = pos - m_thumbX;
|
|
m_thumbX = pos;
|
|
}
|
|
else
|
|
{
|
|
scrollinc = pos - m_thumbY;
|
|
m_thumbY = pos;
|
|
}
|
|
break;
|
|
}
|
|
case wxEVT_SCROLLWIN_THUMBRELEASE:
|
|
{
|
|
m_thumbX = m_viewportW;
|
|
m_thumbY = m_viewportH;
|
|
}
|
|
}
|
|
|
|
#if defined(__WXGTK__) || defined(__WXMOTIF__) // what about Motif?
|
|
// wxGTK updates the thumb automatically (wxMSW doesn't); reset it back
|
|
if (type != wxEVT_SCROLLWIN_THUMBTRACK)
|
|
{
|
|
SetScrollbar(wxHORIZONTAL, m_viewportW, m_viewportW, 3 * m_viewportW);
|
|
SetScrollbar(wxVERTICAL, m_viewportH, m_viewportH, 3 * m_viewportH);
|
|
}
|
|
#endif
|
|
|
|
if (scrollinc == 0) return;
|
|
|
|
// scroll the window and adjust the viewport
|
|
if (orient == wxHORIZONTAL)
|
|
{
|
|
m_viewportX += scrollinc;
|
|
ScrollWindow( -m_cellsize * scrollinc, 0, (const wxRect *) NULL);
|
|
}
|
|
else
|
|
{
|
|
m_viewportY += scrollinc;
|
|
ScrollWindow( 0, -m_cellsize * scrollinc, (const wxRect *) NULL);
|
|
}
|
|
}
|
|
|
|
void LifeCanvas::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
|
|
{
|
|
// do nothing. I just don't want the background to be erased, you know.
|
|
}
|
|
|
|
|