From 90825e2392b2d70e43c7a25b8a3752299a933894 Mon Sep 17 00:00:00 2001 From: toma Date: Wed, 25 Nov 2009 17:56:58 +0000 Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features. BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebindings@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da --- .../examples/qt-examples/progress/progress.rb | 275 +++++++++++++++++++++ 1 file changed, 275 insertions(+) create mode 100644 qtruby/rubylib/examples/qt-examples/progress/progress.rb (limited to 'qtruby/rubylib/examples/qt-examples/progress/progress.rb') diff --git a/qtruby/rubylib/examples/qt-examples/progress/progress.rb b/qtruby/rubylib/examples/qt-examples/progress/progress.rb new file mode 100644 index 00000000..02116958 --- /dev/null +++ b/qtruby/rubylib/examples/qt-examples/progress/progress.rb @@ -0,0 +1,275 @@ +#!/usr/bin/env ruby -w + +require 'Qt' + +class AnimatedThingy < Qt::Label + attr_accessor :label, :step + attr_accessor :ox0, :oy0, :ox1, :oy1 + attr_accessor :x0, :y0, :x1, :y1 + attr_accessor :dx0, :dx1, :dy0, :dy1 + NQIX = 10 + + def initialize(*k) + super(*k) + @label = k[1] + "\n... and wasting CPU\nwith this animation!\n" + @step = 0 + @ox0, @oy0, @ox1, @oy1 = *Array.new(4) { Array.new(10, 0) } + @x0 = @y0 = @x1 = @y1 = 0 + @dx0 = rand(8)+2 + @dy0 = rand(8)+2 + @dx1 = rand(8)+2 + @dy1 = rand(8)+2 + end + + def show + startTimer(100) unless isVisible + super + end + + def hide + super + killTimers() + end + + def sizeHint + Qt::Size.new(120,100) + end + + def inc(x, dx, b) + x += dx + if x < 0 + x = 0 + dx = rand(8) + 2 + elsif x >= b + x = b-1 + dx = -(rand(8)+2) + end + yield x, dx + end + + def timerEvent(e) + p = Qt::Painter.new(self) + pn = p.pen + pn.setWidth(2) + pn.setColor(backgroundColor) + p.setPen(pn) + + @step = (@step + 1) % NQIX + + p.drawLine(@ox0[@step], @oy0[@step], @ox1[@step], @oy1[@step]) + + inc(@x0, @dx0, width) { |x,dx| @x0, @dx0 = x, dx } + inc(@y0, @dy0, height) { |y,dy| @y0, @dy0 = y, dy } + inc(@x1, @dx1, width) { |x,dx| @x1, @dx1 = x, dx } + inc(@y1, @dy1, height) { |y,dy| @y1, @dy1 = y, dy } + @ox0[@step] = @x0 + @oy0[@step] = @y0 + @ox1[@step] = @x1 + @oy1[@step] = @y1 + + c = Qt::Color.new + c.setHsv( (@step*255)/NQIX, 255, 255 ) # rainbow effect + pn.setColor(c) + pn.setWidth(2) + p.setPen(pn) + p.drawLine(@ox0[@step], @oy0[@step], @ox1[@step], @oy1[@step]) + p.setPen(colorGroup().text()) + p.drawText(rect(), AlignCenter, @label) + p.end() + end + + def paintEvent(event) + p = Qt::Painter.new(self) + pn = p.pen() + pn.setWidth(2) + p.setPen(pn) + p.setClipRect(event.rect()) + 0.upto(NQIX-1) do |i| + c = Qt::Color.new() + c.setHsv( (i*255)/NQIX, 255, 255 ) # rainbow effect + pn.setColor(c) + p.setPen(pn) + p.drawLine(@ox0[i], @oy0[i], @ox1[i], @oy1[i]) + end + p.setPen(colorGroup().text()) + p.drawText(rect(), AlignCenter, @label) + p.end + end +end + +class CPUWaster < Qt::Widget + attr_accessor :menubar, :file, :options, :rects, :pb + attr_accessor :td_id , :ld_id, :dl_id, :cl_id, :md_id + attr_accessor :got_stop, :timer_driven, :default_label + slots 'drawItemRects(int)', 'doMenuItem(int)', 'stopDrawing()', 'timerDriven()' + slots 'loopDriven()', 'defaultLabel()', 'customLabel()', 'toggleMinimumDuration()' + + FIRST_DRAW_ITEM = 1000 + LAST_DRAW_ITEM = 1006 + + def initialize(*k) + super(*k) + + @menubar = Qt::MenuBar.new(self, "menu") + @pb = nil + + @file = Qt::PopupMenu.new + @menubar.insertItem( "&File", file ) + FIRST_DRAW_ITEM.upto(LAST_DRAW_ITEM) { + |i| file.insertItem( "#{drawItemRects(i)} Rectangles", i) + } + connect( menubar, SIGNAL('activated(int)'), self, SLOT('doMenuItem(int)') ) + @file.insertSeparator + @file.insertItem("Quit", $qApp, SLOT('quit()')) + @options = Qt::PopupMenu.new + @menubar.insertItem("&Options", options) + @td_id = options.insertItem("Timer driven", self, SLOT('timerDriven()')) + @ld_id = options.insertItem("Loop driven", self, SLOT('loopDriven()')) + @options.insertSeparator + @dl_id = options.insertItem("Default label", self, SLOT('defaultLabel()')) + @cl_id = options.insertItem("Custom label", self, SLOT('customLabel()')) + @options.insertSeparator + @md_id = options.insertItem("No minimum duration", self, SLOT('toggleMinimumDuration()')) + @options.setCheckable true + + loopDriven + defaultLabel + + setFixedSize(400, 300) + setBackgroundColor(black) + end + + def drawItemRects(id) + n = id - FIRST_DRAW_ITEM - 1 + r = 100 + n.downto(0) { |n| + r *= (n%3 != 0) ? 5 : 4 + } + r + end + + def doMenuItem(id) + draw drawItemRects(id) if id >= FIRST_DRAW_ITEM && id <= LAST_DRAW_ITEM + end + + def stopDrawing + @got_stop = true + end + + def timerDriven + @timer_driven = true + @options.setItemChecked(@td_id, true) + @options.setItemChecked(@ld_id, false) + end + + def loopDriven + @timer_driven = false + @options.setItemChecked(@td_id, false) + @options.setItemChecked(@ld_id, true) + end + + def defaultLabel + @default_label = true + @options.setItemChecked(@dl_id, true) + @options.setItemChecked(@cl_id, false) + end + + def customLabel + @default_label = false + @options.setItemChecked(@dl_id, false) + @options.setItemChecked(@cl_id, true) + end + + def toggleMinimumDuration + checked = @options.isItemChecked(@md_id) + @options.setItemChecked(@md_id, !checked) + end + + def timerEvent(e) + @pb.setProgress( @pb.totalSteps - @rects ) if @rects % 100 == 0 + @rects -= 1 + + painter = Qt::Painter.new(self) + + ww = width + wh = height + + if ww > 8 and wh > 8 + c = Qt::Color.new(rand(255), rand(255), rand(255)) + x = rand(ww - 8) + y = rand(wh - 8) + w = rand(ww - x) + h = rand(wh - y) + painter.fillRect(x, y, w, h, Qt::Brush.new(c)) + end + + painter.end() + + if @rects == 0 || @got_stop + @pb.setProgress(@pb.totalSteps) + painter = Qt::Painter.new(self) + painter.fillRect(0, 0, width(), height(), Qt::Brush.new(backgroundColor)) + painter.end() + enableDrawingItems(true) + killTimers() + @pb = nil + end + end + + def newProgressDialog(label, steps, modal) + d = Qt::ProgressDialog.new(label, "Cancel", steps, self, "progress", modal) + d.setMinimumDuration(0) if @options.isItemChecked(@md_id) + d.setLabel( AnimatedThingy.new(d, label) ) unless @default_label + d.show + d + end + + def enableDrawingItems(yes) + FIRST_DRAW_ITEM.upto(LAST_DRAW_ITEM) { + |i| menubar.setItemEnabled(i, yes) + } + end + + def draw(n) + if timer_driven + unless @pb.nil? + warn("This cannot happen!") + return + end + @rects = n + @pb = newProgressDialog("Drawing rectangles.\nUsing timer event.", n, false) + @pb.setCaption("Please Wait") + connect(@pb, SIGNAL('cancelled()'), self, SLOT('stopDrawing()')) + enableDrawingItems(false) + startTimer(0) + @got_stop = false + else + lpb = newProgressDialog("Drawing rectangles.\nUsing loop.", n, true) + lpb.setCaption("Please Wait") + + painter = Qt::Painter.new(self) + 0.upto(n) { |i| + if (i % 100) == 0 + lpb.setProgress(i) + break if lpb.wasCancelled + end + cw, ch = width, height + c = Qt::Color.new(rand(255), rand(255), rand(255)) + x = rand(cw - 8) + y = rand(cw - 8) + w = rand(cw - x) + h = rand(cw - y) + painter.fillRect(x, y, w, h, Qt::Brush.new(c)) + } + lpb.cancel + painter.fillRect(0, 0, width, height, Qt::Brush.new(backgroundColor)) + painter.end() + end + end +end + +a = Qt::Application.new(ARGV) +w = CPUWaster.new +w.show +a.setMainWidget(w) +a.exec -- cgit v1.2.1