diff options
Diffstat (limited to 'qtruby/rubylib/examples/qt-examples/chart/chartform.rb')
| -rw-r--r-- | qtruby/rubylib/examples/qt-examples/chart/chartform.rb | 488 |
1 files changed, 488 insertions, 0 deletions
diff --git a/qtruby/rubylib/examples/qt-examples/chart/chartform.rb b/qtruby/rubylib/examples/qt-examples/chart/chartform.rb new file mode 100644 index 00000000..a649ce12 --- /dev/null +++ b/qtruby/rubylib/examples/qt-examples/chart/chartform.rb @@ -0,0 +1,488 @@ +class ChartForm < Qt::MainWindow + + slots 'fileNew()', + 'fileOpen()', + 'fileOpenRecent( int )', + 'fileSave()', + 'fileSaveAs()', + 'fileSaveAsPixmap()', + 'filePrint()', + 'fileQuit()', + 'optionsSetData()', + 'updateChartType( QAction * )', + 'optionsSetFont()', + 'optionsSetOptions()', + 'helpHelp()', + 'helpAbout()', + 'helpAboutQt()', + 'saveOptions()' + + attr_accessor :changed + attr_reader :chartType, :optionsMenu + + MAX_ELEMENTS = 100 + MAX_RECENTFILES = 9 # Must not exceed 9 + + PIE = 0 + VERTICAL_BAR = 1 + HORIZONTAL_BAR = 2 + + NO = 0 + YES = 1 + AS_PERCENTAGE = 2 + + WINDOWS_REGISTRY = "/Trolltech/QtExamples" + APP_KEY = "/Chart/" + + def initialize( filename ) + super( nil, nil, WDestructiveClose ) + @filename = filename + setIcon( Qt::Pixmap.new( "images/options_piechart.xpm" ) ) + + fileNewAction = Qt::Action.new( + "New Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/file_new.xpm" )), + "&New", Qt::KeySequence.new(CTRL+Key_N), self, "new" ) + connect( fileNewAction, SIGNAL( 'activated()' ), self, SLOT( 'fileNew()' ) ) + + fileOpenAction = Qt::Action.new( + "Open Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/file_open.xpm" )), + "&Open...", Qt::KeySequence.new(CTRL+Key_O), self, "open" ) + connect( fileOpenAction, SIGNAL( 'activated()' ), self, SLOT( 'fileOpen()' ) ) + + fileSaveAction = Qt::Action.new( + "Save Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/file_save.xpm" )), + "&Save", Qt::KeySequence.new(CTRL+Key_S), self, "save" ) + connect( fileSaveAction, SIGNAL( 'activated()' ), self, SLOT( 'fileSave()' ) ) + + fileSaveAsAction = Qt::Action.new( + "Save Chart As", Qt::IconSet.new(Qt::Pixmap.new( "images/file_save.xpm" )), + "Save &As...", Qt::KeySequence.new(0), self, "save as" ) + connect( fileSaveAsAction, SIGNAL( 'activated()' ), + self, SLOT( 'fileSaveAs()' ) ) + + fileSaveAsPixmapAction = Qt::Action.new( + "Save Chart As Bitmap", Qt::IconSet.new(Qt::Pixmap.new( "images/file_save.xpm" )), + "Save As &Bitmap...", Qt::KeySequence.new(CTRL+Key_B), self, "save as bitmap" ) + connect( fileSaveAsPixmapAction, SIGNAL( 'activated()' ), + self, SLOT( 'fileSaveAsPixmap()' ) ) + + filePrintAction = Qt::Action.new( + "Print Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/file_print.xpm" )), + "&Print Chart...", Qt::KeySequence.new(CTRL+Key_P), self, "print chart" ) + connect( filePrintAction, SIGNAL( 'activated()' ), + self, SLOT( 'filePrint()' ) ) + + optionsSetDataAction = Qt::Action.new( + "Set Data", Qt::IconSet.new(Qt::Pixmap.new( "images/options_setdata.xpm" )), + "Set &Data...", Qt::KeySequence.new(CTRL+Key_D), self, "set data" ) + connect( optionsSetDataAction, SIGNAL( 'activated()' ), + self, SLOT( 'optionsSetData()' ) ) + + + chartGroup = Qt::ActionGroup.new( self ) # Connected later + chartGroup.setExclusive( true ) + + @optionsPieChartAction = Qt::Action.new( + "Pie Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/options_piechart.xpm" )), + "&Pie Chart", Qt::KeySequence.new(CTRL+Key_I), chartGroup, "pie chart" ) + @optionsPieChartAction.setToggleAction( true ) + + @optionsHorizontalBarChartAction = Qt::Action.new( + "Horizontal Bar Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/options_horizontalbarchart.xpm" )), + "&Horizontal Bar Chart", Qt::KeySequence.new(CTRL+Key_H), chartGroup, + "horizontal bar chart" ) + @optionsHorizontalBarChartAction.setToggleAction( true ) + + @optionsVerticalBarChartAction = Qt::Action.new( + "Vertical Bar Chart", Qt::IconSet.new(Qt::Pixmap.new( "images/options_verticalbarchart.xpm" )), + "&Vertical Bar Chart", Qt::KeySequence.new(CTRL+Key_V), chartGroup, "Vertical bar chart" ) + @optionsVerticalBarChartAction.setToggleAction( true ) + + + optionsSetFontAction = Qt::Action.new( + "Set Font", Qt::IconSet.new(Qt::Pixmap.new( "images/options_setfont.xpm" )), + "Set &Font...", Qt::KeySequence.new(CTRL+Key_F), self, "set font" ) + connect( optionsSetFontAction, SIGNAL( 'activated()' ), + self, SLOT( 'optionsSetFont()' ) ) + + optionsSetOptionsAction = Qt::Action.new( + "Set Options", Qt::IconSet.new(Qt::Pixmap.new( "images/options_setoptions.xpm" )), + "Set &Options...", Qt::KeySequence.new(0), self, "set options" ) + connect( optionsSetOptionsAction, SIGNAL( 'activated()' ), + self, SLOT( 'optionsSetOptions()' ) ) + + fileQuitAction = Qt::Action.new( "Quit", "&Quit", Qt::KeySequence.new(CTRL+Key_Q), self, "quit" ) + connect( fileQuitAction, SIGNAL( 'activated()' ), self, SLOT( 'fileQuit()' ) ) + + + fileTools = Qt::ToolBar.new( self, "file operations" ) + fileTools.setLabel( "File Operations" ) + fileNewAction.addTo( fileTools ) + fileOpenAction.addTo( fileTools ) + fileSaveAction.addTo( fileTools ) + fileTools.addSeparator() + filePrintAction.addTo( fileTools ) + + optionsTools = Qt::ToolBar.new( self, "options operations" ) + optionsTools.setLabel( "Options Operations" ) + optionsSetDataAction.addTo( optionsTools ) + optionsTools.addSeparator() + @optionsPieChartAction.addTo( optionsTools ) + @optionsHorizontalBarChartAction.addTo( optionsTools ) + @optionsVerticalBarChartAction.addTo( optionsTools ) + optionsTools.addSeparator() + optionsSetFontAction.addTo( optionsTools ) + optionsTools.addSeparator() + optionsSetOptionsAction.addTo( optionsTools ) + + @fileMenu = Qt::PopupMenu.new( self ) + menuBar().insertItem( "&File", @fileMenu ) + fileNewAction.addTo( @fileMenu ) + fileOpenAction.addTo( @fileMenu ) + fileSaveAction.addTo( @fileMenu ) + fileSaveAsAction.addTo( @fileMenu ) + @fileMenu.insertSeparator() + fileSaveAsPixmapAction.addTo( @fileMenu ) + @fileMenu.insertSeparator() + filePrintAction.addTo( @fileMenu ) + @fileMenu.insertSeparator() + fileQuitAction.addTo( @fileMenu ) + + @optionsMenu = Qt::PopupMenu.new( self ) + menuBar().insertItem( "&Options", @optionsMenu ) + optionsSetDataAction.addTo( @optionsMenu ) + @optionsMenu.insertSeparator() + @optionsPieChartAction.addTo( @optionsMenu ) + @optionsHorizontalBarChartAction.addTo( @optionsMenu ) + @optionsVerticalBarChartAction.addTo( @optionsMenu ) + @optionsMenu.insertSeparator() + optionsSetFontAction.addTo( @optionsMenu ) + @optionsMenu.insertSeparator() + optionsSetOptionsAction.addTo( @optionsMenu ) + + menuBar().insertSeparator() + + helpMenu = Qt::PopupMenu.new( self ) + menuBar().insertItem( "&Help", helpMenu ) + helpMenu.insertItem( "&Help", self, SLOT('helpHelp()'), Qt::KeySequence.new(Key_F1) ) + helpMenu.insertItem( "&About", self, SLOT('helpAbout()') ) + helpMenu.insertItem( "About &Qt", self, SLOT('helpAboutQt()') ) + + + @printer = nil + @elements = Array.new(MAX_ELEMENTS) + + settings = Qt::Settings.new + settings.insertSearchPath( Qt::Settings::Windows, WINDOWS_REGISTRY ) + windowWidth = settings.readNumEntry( APP_KEY + "WindowWidth", 460 ) + windowHeight = settings.readNumEntry( APP_KEY + "WindowHeight", 530 ) + windowX = settings.readNumEntry( APP_KEY + "WindowX", -1 ) + windowY = settings.readNumEntry( APP_KEY + "WindowY", -1 ) + setChartType( settings.readNumEntry( APP_KEY + "ChartType", PIE ) ) + @addValues = settings.readNumEntry( APP_KEY + "AddValues", NO ) + @decimalPlaces = settings.readNumEntry( APP_KEY + "Decimals", 2 ) + @font = Qt::Font.new( "Helvetica", 18, Qt::Font::Bold ) + @font.fromString( + settings.readEntry( APP_KEY + "Font", @font.toString() ) ) + @recentFiles = [] + for i in 0...MAX_RECENTFILES + filename = settings.readEntry( APP_KEY + "File" + ( i + 1 ).to_s ) + if !filename.nil? + @recentFiles.push( filename ) + end + end + if @recentFiles.length() > 0 + updateRecentFilesMenu() + end + + + # Connect *after* we've set the chart type on so we don't call + # drawElements() prematurely. + connect( chartGroup, SIGNAL( 'selected(QAction*)' ), + self, SLOT( 'updateChartType(QAction*)' ) ) + + resize( windowWidth, windowHeight ) + if windowX != -1 || windowY != -1 + move( windowX, windowY ) + end + + @canvas = Qt::Canvas.new( self ) + @canvas.resize( width(), height() ) + @canvasView = CanvasView.new( @canvas, @elements, self ) + setCentralWidget( @canvasView ) + @canvasView.show() + + if ! @filename.nil? + load( @filename ) + else + init() + @elements[0].set( 20, red, 14, "Red" ) + @elements[1].set( 70, cyan, 2, "Cyan", darkGreen ) + @elements[2].set( 35, blue, 11, "Blue" ) + @elements[3].set( 55, yellow, 1, "Yellow", darkBlue ) + @elements[4].set( 80, magenta, 1, "Magenta" ) + drawElements() + end + + statusBar().message( "Ready", 2000 ) + end + + + + def init() + setCaption( "Chart" ) + @filename = nil + @changed = false + + @elements[0] = Element.new( Element::INVALID, red ) + @elements[1] = Element.new( Element::INVALID, cyan ) + @elements[2] = Element.new( Element::INVALID, blue ) + @elements[3] = Element.new( Element::INVALID, yellow ) + @elements[4] = Element.new( Element::INVALID, green ) + @elements[5] = Element.new( Element::INVALID, magenta ) + @elements[6] = Element.new( Element::INVALID, darkYellow ) + @elements[7] = Element.new( Element::INVALID, darkRed ) + @elements[8] = Element.new( Element::INVALID, darkCyan ) + @elements[9] = Element.new( Element::INVALID, darkGreen ) + @elements[10] = Element.new( Element::INVALID, darkMagenta ) + @elements[11] = Element.new( Element::INVALID, darkBlue ) + for i in 12...MAX_ELEMENTS + x = (i.to_f / MAX_ELEMENTS) * 360 + y = ((x * 256) % 105) + 151 + z = ((i * 17) % 105) + 151; + @elements[i] = Element.new( Element::INVALID, Qt::Color.new( x, y, z, Qt::Color::Hsv ) ) + end + end + + def closeEvent( e ) + fileQuit() + end + + + def fileNew() + if okToClear() + init() + drawElements() + end + end + + + def fileOpen() + if !okToClear() + return + end + + filename = Qt::FileDialog.getOpenFileName( + nil, "Charts (*.cht)", self, + "file open", "Chart -- File Open" ) + if !filename.nil? + load( filename ) + else + statusBar().message( "File Open abandoned", 2000 ) + end + end + + + def fileSaveAs() + filename = Qt::FileDialog.getSaveFileName( + nil, "Charts (*.cht)", self, + "file save as", "Chart -- File Save As" ) + if !filename.nil? + answer = 0 + if Qt::File.exists( filename ) + answer = Qt::MessageBox.warning( + self, "Chart -- Overwrite File", + "Overwrite\n\'#{filename}\'?", + "&Yes", "&No", nil, 1, 1 ) + end + if answer == 0 + @filename = filename + updateRecentFiles( filename ) + fileSave() + return + end + end + statusBar().message( "Saving abandoned", 2000 ) + end + + + def fileOpenRecent( index ) + if !okToClear() + return + end + + load( @recentFiles[index] ) + end + + + def updateRecentFiles( filename ) + if @recentFiles.include?( filename ) + return + end + + @recentFiles.push( filename ) + if @recentFiles.length() > MAX_RECENTFILES + @recentFiles.shift() + end + + updateRecentFilesMenu() + end + + + def updateRecentFilesMenu() + for i in 0...MAX_RECENTFILES + if @fileMenu.findItem( i ) + @fileMenu.removeItem( i ) + end + if i < @recentFiles.length() + @fileMenu.insertItem( "&%d %s" % [i + 1, @recentFiles[i]], + self, SLOT( 'fileOpenRecent(int)' ), + Qt::KeySequence.new(0), i ) + end + end + end + + + def fileQuit() + if okToClear() + saveOptions() + $qApp.exit( 0 ) + end + end + + + 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 + |