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489 lines
17 KiB
489 lines
17 KiB
15 years ago
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class ChartForm < Qt::MainWindow
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slots 'fileNew()',
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'fileOpen()',
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'fileOpenRecent( int )',
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'fileSave()',
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'fileSaveAs()',
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'fileSaveAsPixmap()',
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'filePrint()',
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'fileQuit()',
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'optionsSetData()',
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'updateChartType( QAction * )',
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'optionsSetFont()',
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'optionsSetOptions()',
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'helpHelp()',
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'helpAbout()',
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'helpAboutQt()',
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'saveOptions()'
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attr_accessor :changed
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attr_reader :chartType, :optionsMenu
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MAX_ELEMENTS = 100
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MAX_RECENTFILES = 9 # Must not exceed 9
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PIE = 0
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VERTICAL_BAR = 1
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HORIZONTAL_BAR = 2
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NO = 0
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YES = 1
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AS_PERCENTAGE = 2
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WINDOWS_REGISTRY = "/Trolltech/QtExamples"
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APP_KEY = "/Chart/"
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def initialize( filename )
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super( nil, nil, WDestructiveClose )
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@filename = filename
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setIcon( Qt::Pixmap.new( "images/options_piechart.xpm" ) )
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fileNewAction = Qt::Action.new(
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"New Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/file_new.xpm" )),
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"&New", Qt::KeySequence.new(CTRL+Key_N), self, "new" )
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connect( fileNewAction, SIGNAL( 'activated()' ), self, SLOT( 'fileNew()' ) )
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fileOpenAction = Qt::Action.new(
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"Open Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/file_open.xpm" )),
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"&Open...", Qt::KeySequence.new(CTRL+Key_O), self, "open" )
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connect( fileOpenAction, SIGNAL( 'activated()' ), self, SLOT( 'fileOpen()' ) )
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fileSaveAction = Qt::Action.new(
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"Save Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/file_save.xpm" )),
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"&Save", Qt::KeySequence.new(CTRL+Key_S), self, "save" )
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connect( fileSaveAction, SIGNAL( 'activated()' ), self, SLOT( 'fileSave()' ) )
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fileSaveAsAction = Qt::Action.new(
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"Save Chart As", Qt::IconSet.new(Qt::Pixmap.new( "images/file_save.xpm" )),
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"Save &As...", Qt::KeySequence.new(0), self, "save as" )
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connect( fileSaveAsAction, SIGNAL( 'activated()' ),
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self, SLOT( 'fileSaveAs()' ) )
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fileSaveAsPixmapAction = Qt::Action.new(
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"Save Chart As Bitmap", Qt::IconSet.new(Qt::Pixmap.new( "images/file_save.xpm" )),
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"Save As &Bitmap...", Qt::KeySequence.new(CTRL+Key_B), self, "save as bitmap" )
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connect( fileSaveAsPixmapAction, SIGNAL( 'activated()' ),
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self, SLOT( 'fileSaveAsPixmap()' ) )
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filePrintAction = Qt::Action.new(
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"Print Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/file_print.xpm" )),
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"&Print Chart...", Qt::KeySequence.new(CTRL+Key_P), self, "print chart" )
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connect( filePrintAction, SIGNAL( 'activated()' ),
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self, SLOT( 'filePrint()' ) )
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optionsSetDataAction = Qt::Action.new(
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"Set Data", Qt::IconSet.new(Qt::Pixmap.new( "images/options_setdata.xpm" )),
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"Set &Data...", Qt::KeySequence.new(CTRL+Key_D), self, "set data" )
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connect( optionsSetDataAction, SIGNAL( 'activated()' ),
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self, SLOT( 'optionsSetData()' ) )
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chartGroup = Qt::ActionGroup.new( self ) # Connected later
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chartGroup.setExclusive( true )
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@optionsPieChartAction = Qt::Action.new(
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"Pie Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/options_piechart.xpm" )),
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"&Pie Chart", Qt::KeySequence.new(CTRL+Key_I), chartGroup, "pie chart" )
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@optionsPieChartAction.setToggleAction( true )
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@optionsHorizontalBarChartAction = Qt::Action.new(
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"Horizontal Bar Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/options_horizontalbarchart.xpm" )),
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"&Horizontal Bar Chart", Qt::KeySequence.new(CTRL+Key_H), chartGroup,
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"horizontal bar chart" )
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@optionsHorizontalBarChartAction.setToggleAction( true )
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@optionsVerticalBarChartAction = Qt::Action.new(
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"Vertical Bar Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/options_verticalbarchart.xpm" )),
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"&Vertical Bar Chart", Qt::KeySequence.new(CTRL+Key_V), chartGroup, "Vertical bar chart" )
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@optionsVerticalBarChartAction.setToggleAction( true )
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optionsSetFontAction = Qt::Action.new(
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"Set Font", Qt::IconSet.new(Qt::Pixmap.new( "images/options_setfont.xpm" )),
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"Set &Font...", Qt::KeySequence.new(CTRL+Key_F), self, "set font" )
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connect( optionsSetFontAction, SIGNAL( 'activated()' ),
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self, SLOT( 'optionsSetFont()' ) )
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optionsSetOptionsAction = Qt::Action.new(
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"Set Options", Qt::IconSet.new(Qt::Pixmap.new( "images/options_setoptions.xpm" )),
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"Set &Options...", Qt::KeySequence.new(0), self, "set options" )
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connect( optionsSetOptionsAction, SIGNAL( 'activated()' ),
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self, SLOT( 'optionsSetOptions()' ) )
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fileQuitAction = Qt::Action.new( "Quit", "&Quit", Qt::KeySequence.new(CTRL+Key_Q), self, "quit" )
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connect( fileQuitAction, SIGNAL( 'activated()' ), self, SLOT( 'fileQuit()' ) )
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fileTools = Qt::ToolBar.new( self, "file operations" )
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fileTools.setLabel( "File Operations" )
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fileNewAction.addTo( fileTools )
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fileOpenAction.addTo( fileTools )
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fileSaveAction.addTo( fileTools )
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fileTools.addSeparator()
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filePrintAction.addTo( fileTools )
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optionsTools = Qt::ToolBar.new( self, "options operations" )
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optionsTools.setLabel( "Options Operations" )
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optionsSetDataAction.addTo( optionsTools )
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optionsTools.addSeparator()
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@optionsPieChartAction.addTo( optionsTools )
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@optionsHorizontalBarChartAction.addTo( optionsTools )
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@optionsVerticalBarChartAction.addTo( optionsTools )
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optionsTools.addSeparator()
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optionsSetFontAction.addTo( optionsTools )
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optionsTools.addSeparator()
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optionsSetOptionsAction.addTo( optionsTools )
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@fileMenu = Qt::PopupMenu.new( self )
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menuBar().insertItem( "&File", @fileMenu )
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fileNewAction.addTo( @fileMenu )
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fileOpenAction.addTo( @fileMenu )
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fileSaveAction.addTo( @fileMenu )
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fileSaveAsAction.addTo( @fileMenu )
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@fileMenu.insertSeparator()
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fileSaveAsPixmapAction.addTo( @fileMenu )
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@fileMenu.insertSeparator()
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filePrintAction.addTo( @fileMenu )
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@fileMenu.insertSeparator()
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fileQuitAction.addTo( @fileMenu )
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@optionsMenu = Qt::PopupMenu.new( self )
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menuBar().insertItem( "&Options", @optionsMenu )
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optionsSetDataAction.addTo( @optionsMenu )
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@optionsMenu.insertSeparator()
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@optionsPieChartAction.addTo( @optionsMenu )
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@optionsHorizontalBarChartAction.addTo( @optionsMenu )
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@optionsVerticalBarChartAction.addTo( @optionsMenu )
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@optionsMenu.insertSeparator()
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optionsSetFontAction.addTo( @optionsMenu )
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@optionsMenu.insertSeparator()
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optionsSetOptionsAction.addTo( @optionsMenu )
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menuBar().insertSeparator()
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helpMenu = Qt::PopupMenu.new( self )
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menuBar().insertItem( "&Help", helpMenu )
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helpMenu.insertItem( "&Help", self, SLOT('helpHelp()'), Qt::KeySequence.new(Key_F1) )
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helpMenu.insertItem( "&About", self, SLOT('helpAbout()') )
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helpMenu.insertItem( "About &Qt", self, SLOT('helpAboutQt()') )
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@printer = nil
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@elements = Array.new(MAX_ELEMENTS)
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settings = Qt::Settings.new
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settings.insertSearchPath( Qt::Settings::Windows, WINDOWS_REGISTRY )
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windowWidth = settings.readNumEntry( APP_KEY + "WindowWidth", 460 )
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windowHeight = settings.readNumEntry( APP_KEY + "WindowHeight", 530 )
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windowX = settings.readNumEntry( APP_KEY + "WindowX", -1 )
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windowY = settings.readNumEntry( APP_KEY + "WindowY", -1 )
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setChartType( settings.readNumEntry( APP_KEY + "ChartType", PIE ) )
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@addValues = settings.readNumEntry( APP_KEY + "AddValues", NO )
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@decimalPlaces = settings.readNumEntry( APP_KEY + "Decimals", 2 )
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@font = Qt::Font.new( "Helvetica", 18, Qt::Font::Bold )
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@font.fromString(
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settings.readEntry( APP_KEY + "Font", @font.toString() ) )
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@recentFiles = []
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for i in 0...MAX_RECENTFILES
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filename = settings.readEntry( APP_KEY + "File" + ( i + 1 ).to_s )
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if !filename.nil?
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@recentFiles.push( filename )
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end
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end
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if @recentFiles.length() > 0
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updateRecentFilesMenu()
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end
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# Connect *after* we've set the chart type on so we don't call
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# drawElements() prematurely.
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connect( chartGroup, SIGNAL( 'selected(QAction*)' ),
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self, SLOT( 'updateChartType(QAction*)' ) )
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resize( windowWidth, windowHeight )
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if windowX != -1 || windowY != -1
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move( windowX, windowY )
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end
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@canvas = Qt::Canvas.new( self )
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@canvas.resize( width(), height() )
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@canvasView = CanvasView.new( @canvas, @elements, self )
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setCentralWidget( @canvasView )
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@canvasView.show()
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if ! @filename.nil?
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load( @filename )
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else
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init()
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@elements[0].set( 20, red, 14, "Red" )
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@elements[1].set( 70, cyan, 2, "Cyan", darkGreen )
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@elements[2].set( 35, blue, 11, "Blue" )
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@elements[3].set( 55, yellow, 1, "Yellow", darkBlue )
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@elements[4].set( 80, magenta, 1, "Magenta" )
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drawElements()
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end
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statusBar().message( "Ready", 2000 )
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end
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def init()
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setCaption( "Chart" )
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@filename = nil
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@changed = false
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@elements[0] = Element.new( Element::INVALID, red )
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@elements[1] = Element.new( Element::INVALID, cyan )
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@elements[2] = Element.new( Element::INVALID, blue )
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@elements[3] = Element.new( Element::INVALID, yellow )
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@elements[4] = Element.new( Element::INVALID, green )
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@elements[5] = Element.new( Element::INVALID, magenta )
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@elements[6] = Element.new( Element::INVALID, darkYellow )
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@elements[7] = Element.new( Element::INVALID, darkRed )
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@elements[8] = Element.new( Element::INVALID, darkCyan )
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@elements[9] = Element.new( Element::INVALID, darkGreen )
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@elements[10] = Element.new( Element::INVALID, darkMagenta )
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@elements[11] = Element.new( Element::INVALID, darkBlue )
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for i in 12...MAX_ELEMENTS
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x = (i.to_f / MAX_ELEMENTS) * 360
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y = ((x * 256) % 105) + 151
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z = ((i * 17) % 105) + 151;
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@elements[i] = Element.new( Element::INVALID, Qt::Color.new( x, y, z, Qt::Color::Hsv ) )
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end
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end
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def closeEvent( e )
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fileQuit()
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end
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def fileNew()
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if okToClear()
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init()
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drawElements()
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end
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end
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def fileOpen()
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if !okToClear()
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return
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end
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filename = Qt::FileDialog.getOpenFileName(
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nil, "Charts (*.cht)", self,
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"file open", "Chart -- File Open" )
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if !filename.nil?
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load( filename )
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else
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statusBar().message( "File Open abandoned", 2000 )
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end
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end
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def fileSaveAs()
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filename = Qt::FileDialog.getSaveFileName(
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nil, "Charts (*.cht)", self,
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"file save as", "Chart -- File Save As" )
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if !filename.nil?
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answer = 0
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if Qt::File.exists( filename )
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answer = Qt::MessageBox.warning(
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self, "Chart -- Overwrite File",
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"Overwrite\n\'#{filename}\'?",
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"&Yes", "&No", nil, 1, 1 )
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end
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if answer == 0
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@filename = filename
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updateRecentFiles( filename )
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fileSave()
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return
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end
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end
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statusBar().message( "Saving abandoned", 2000 )
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end
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def fileOpenRecent( index )
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if !okToClear()
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return
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end
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load( @recentFiles[index] )
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end
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def updateRecentFiles( filename )
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if @recentFiles.include?( filename )
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return
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end
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@recentFiles.push( filename )
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if @recentFiles.length() > MAX_RECENTFILES
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@recentFiles.shift()
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end
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updateRecentFilesMenu()
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end
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def updateRecentFilesMenu()
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for i in 0...MAX_RECENTFILES
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if @fileMenu.findItem( i )
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@fileMenu.removeItem( i )
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end
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if i < @recentFiles.length()
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@fileMenu.insertItem( "&%d %s" % [i + 1, @recentFiles[i]],
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self, SLOT( 'fileOpenRecent(int)' ),
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Qt::KeySequence.new(0), i )
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end
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end
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end
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def fileQuit()
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if okToClear()
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saveOptions()
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$qApp.exit( 0 )
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end
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end
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def okToClear()
|
||
|
|
if @changed
|
||
|
|
if @filename.nil?
|
||
|
|
msg = "Unnamed chart "
|
||
|
|
else
|
||
|
|
msg = "Chart '#{@filename}'\n"
|
||
|
|
end
|
||
|
|
msg += "has been changed."
|
||
|
|
|
||
|
|
x = Qt::MessageBox.information( self, "Chart -- Unsaved Changes",
|
||
|
|
msg, "&Save", "Cancel", "&Abandon",
|
||
|
|
0, 1 )
|
||
|
|
case x
|
||
|
|
when 0 # Save
|
||
|
|
fileSave()
|
||
|
|
when 1 # Cancel
|
||
|
|
when 2 # Abandon
|
||
|
|
else
|
||
|
|
return false
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return true
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
def saveOptions()
|
||
|
|
settings = Qt::Settings.new
|
||
|
|
settings.insertSearchPath( Qt::Settings::Windows, WINDOWS_REGISTRY )
|
||
|
|
settings.writeEntry( APP_KEY + "WindowWidth", width() )
|
||
|
|
settings.writeEntry( APP_KEY + "WindowHeight", height() )
|
||
|
|
settings.writeEntry( APP_KEY + "WindowX", x() )
|
||
|
|
settings.writeEntry( APP_KEY + "WindowY", y() )
|
||
|
|
settings.writeEntry( APP_KEY + "ChartType", @chartType )
|
||
|
|
settings.writeEntry( APP_KEY + "AddValues", @addValues )
|
||
|
|
settings.writeEntry( APP_KEY + "Decimals", @decimalPlaces )
|
||
|
|
settings.writeEntry( APP_KEY + "Font", @font.toString() )
|
||
|
|
for i in 0...@recentFiles.length
|
||
|
|
settings.writeEntry( APP_KEY + "File" + ( i + 1 ).to_s,
|
||
|
|
@recentFiles[i] )
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
def optionsSetData()
|
||
|
|
setDataForm = SetDataForm.new( @elements, @decimalPlaces, self )
|
||
|
|
if setDataForm.exec()
|
||
|
|
@changed = true
|
||
|
|
drawElements()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
def setChartType( chartType )
|
||
|
|
@chartType = chartType;
|
||
|
|
case @chartType
|
||
|
|
when PIE
|
||
|
|
@optionsPieChartAction.setOn( true )
|
||
|
|
when VERTICAL_BAR:
|
||
|
|
@optionsVerticalBarChartAction.setOn( true )
|
||
|
|
when HORIZONTAL_BAR:
|
||
|
|
@optionsHorizontalBarChartAction.setOn( true )
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
def updateChartType( action )
|
||
|
|
if action == @optionsPieChartAction
|
||
|
|
@chartType = PIE
|
||
|
|
elsif action == @optionsHorizontalBarChartAction
|
||
|
|
@chartType = HORIZONTAL_BAR
|
||
|
|
elsif action == @optionsVerticalBarChartAction
|
||
|
|
@chartType = VERTICAL_BAR
|
||
|
|
end
|
||
|
|
|
||
|
|
drawElements()
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
def optionsSetFont()
|
||
|
|
ok = Qt::Boolean.new
|
||
|
|
font = Qt::FontDialog.getFont( ok, @font, self )
|
||
|
|
if !ok.nil?
|
||
|
|
@font = font
|
||
|
|
drawElements()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
def optionsSetOptions()
|
||
|
|
optionsForm = OptionsForm.new( self )
|
||
|
|
optionsForm.chartTypeComboBox.setCurrentItem( @chartType )
|
||
|
|
optionsForm.font = @font
|
||
|
|
case @addValues
|
||
|
|
when NO
|
||
|
|
optionsForm.noRadioButton.setChecked( true )
|
||
|
|
when YES
|
||
|
|
optionsForm.yesRadioButton.setChecked( true )
|
||
|
|
when AS_PERCENTAGE
|
||
|
|
optionsForm.asPercentageRadioButton.setChecked( true )
|
||
|
|
end
|
||
|
|
optionsForm.decimalPlacesSpinBox.setValue( @decimalPlaces )
|
||
|
|
if optionsForm.exec()
|
||
|
|
setChartType( optionsForm.chartTypeComboBox.currentItem() )
|
||
|
|
@font = optionsForm.font
|
||
|
|
if optionsForm.noRadioButton.isChecked()
|
||
|
|
@addValues = NO
|
||
|
|
elsif optionsForm.yesRadioButton.isChecked()
|
||
|
|
@addValues = YES
|
||
|
|
elsif optionsForm.asPercentageRadioButton.isChecked()
|
||
|
|
@addValues = AS_PERCENTAGE
|
||
|
|
end
|
||
|
|
@decimalPlaces = optionsForm.decimalPlacesSpinBox.value()
|
||
|
|
drawElements()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
def helpHelp()
|
||
|
|
statusBar().message( "Help is not implemented yet", 2000 )
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
def helpAbout()
|
||
|
|
Qt::MessageBox.about( self, "Chart -- About",
|
||
|
|
"<center><h1><font color=blue>Chart<font></h1></center>" +
|
||
|
|
"<p>Chart your data with <i>chart</i>.</p>" )
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
def helpAboutQt()
|
||
|
|
Qt::MessageBox.aboutQt( self, "Chart -- About Qt" )
|
||
|
|
end
|
||
|
|
|
||
|
|
end
|
||
|
|
|