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282 lines
9.6 KiB
282 lines
9.6 KiB
#!/usr/bin/env python
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#/****************************************************************************
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#** $Id: progress.py 3.3.7 edited Aug 31 2005 $
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#**
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#** Copyright (C) 1992-2005 Trolltech AS. All rights reserved.
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#**
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#** This file is part of an example program for TQt. This example
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#** program may be used, distributed and modified without limitation.
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#**
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#** Converted to PyTQt3 by Hans-Peter Jansen <hpj@urpla.net>
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#**
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#*****************************************************************************/
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import sys
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from PyTQt.tqt import *
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from random import randint
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class AnimatedThingy(TQLabel):
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def __init__(self, parent, s):
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TQLabel.__init__(self, parent)
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self.label = TQString(s)
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self.setEraseColor(TQt.white)
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self.label.append("\n... and wasting CPU\nwith this animation!\n")
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self.step = 0
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self.nqix = 10
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self.stepoff = 2
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self.stepmax = 7
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self.lwidth = 2
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self.tdelay = 100
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self.ox, self.oy = [], []
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for i in range(self.nqix):
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self.ox.append((0, 0))
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self.oy.append((0, 0))
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self.x0, self.y0, self.x1, self.y1 = 0, 0, 0, 0
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self.dx0 = randint(0, self.stepmax) + self.stepoff
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self.dy0 = randint(0, self.stepmax) + self.stepoff
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self.dx1 = randint(0, self.stepmax) + self.stepoff
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self.dy1 = randint(0, self.stepmax) + self.stepoff
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def show(self):
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if not self.isVisible():
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self.startTimer(self.tdelay)
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TQWidget.show(self)
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def hide(self):
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TQWidget.hide(self)
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self.killTimers()
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def sizeHint(self):
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return TQSize(120, 100)
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def timerEvent(self, e):
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p, pn = self._painter()
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pn.setColor(self.eraseColor())
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p.setPen(pn)
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self.step = step = (self.step + 1) % self.nqix
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# erase line
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p.drawLine(self.ox[step][0], self.oy[step][0],
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self.ox[step][1], self.oy[step][1])
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# calc new line coordinates
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ww, wh = self.width(), self.height()
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self.x0, self.dx0 = self._inc(self.x0, self.dx0, ww)
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self.y0, self.dy0 = self._inc(self.y0, self.dy0, wh)
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self.x1, self.dx1 = self._inc(self.x1, self.dx1, ww)
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self.y1, self.dy1 = self._inc(self.y1, self.dy1, wh)
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self.ox[step] = (self.x0, self.x1)
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self.oy[step] = (self.y0, self.y1)
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self._drawqix(p, pn, step)
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self._drawtxt(p)
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def paintEvent(self, event):
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p, pn = self._painter()
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p.setClipRect(event.rect())
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for i in range(self.nqix):
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self._drawqix(p, pn, i)
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self._drawtxt(p)
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def _painter(self):
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p = TQPainter(self)
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# we need to create a new pen from p.pen() with TQPen() in order
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# to make it fully functional (changes are discarded otherwise)
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pn = TQPen(p.pen())
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pn.setWidth(self.lwidth)
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p.setPen(pn)
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return p, pn
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def _drawqix(self, p, pn, step):
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# rainbow effect
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pn.setColor(TQColor(int((step * 255)/self.nqix), 255, 255, TQColor.Hsv))
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p.setPen(pn)
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p.drawLine(self.ox[step][0], self.oy[step][0],
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self.ox[step][1], self.oy[step][1])
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def _drawtxt(self, p):
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p.setPen(self.colorGroup().text())
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p.drawText(self.rect(), TQt.AlignCenter, self.label)
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def _inc(self, x, dx, b):
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x += dx
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if x < 0:
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x = 0
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dx = randint(0, self.stepmax) + self.stepoff;
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elif x >= b:
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x = b - 1
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dx = -(randint(0, self.stepmax) + self.stepoff)
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return x, dx
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class CPUWaster(TQWidget):
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def __init__(self):
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TQWidget.__init__(self)
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self.first_draw_item = 1000
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self.last_draw_item = 1006
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self.rects = 0
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self.timer_driven = 0
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self.default_label = 0
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self.got_stop = False
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self.pb = None # non modal progress dialog
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self.menubar = menubar = TQMenuBar(self, "menu")
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self.file_ = file_ = TQPopupMenu()
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menubar.insertItem("&File", file_)
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for i in range(self.first_draw_item, self.last_draw_item + 1):
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file_.insertItem(self.drawItemText(i), i)
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file_.setAccel(TQKeySequence(
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"Ctrl+%s" % (i - self.first_draw_item)), i)
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self.connect(menubar, TQ_SIGNAL("activated(int)"), self.doMenuItem)
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file_.insertSeparator()
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file_.insertItem("Quit", tqApp, TQ_SLOT("quit()"), TQKeySequence("Ctrl+Q"))
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self.options = options = TQPopupMenu()
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menubar.insertItem("&Options", options)
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self.ld_id = options.insertItem("Loop driven", self.loopDriven,
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TQKeySequence("Alt+L"))
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self.td_id = options.insertItem("Timer driven", self.timerDriven,
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TQKeySequence("Alt+T"))
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options.insertSeparator()
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self.dl_id = options.insertItem("Default label", self.defaultLabel,
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TQKeySequence("Alt+D"))
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self.cl_id = options.insertItem("Custom label", self.customLabel,
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TQKeySequence("Alt+C"))
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options.insertSeparator()
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self.md_id = options.insertItem("No minimum duration",
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self.toggleMinimumDuration,
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TQKeySequence("Alt+M"))
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options.setCheckable(True)
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# default option settings
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self.timerDriven()
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self.customLabel()
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self.toggleMinimumDuration()
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self.resize(400, 300)
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self.setEraseColor(TQt.black)
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def drawItemRects(self, id_):
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r = 100
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for n in range(id_ - self.first_draw_item):
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if not n % 3:
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r *= 4
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else:
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r *= 5
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return r
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def drawItemText(self, id_):
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return TQString("%d Rectangles" % self.drawItemRects(id_))
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def enableDrawingItems(self, yes):
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for i in range(self.first_draw_item, self.last_draw_item + 1):
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self.menubar.setItemEnabled(i, yes)
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# slots
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def doMenuItem(self, id_):
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if id_ >= self.first_draw_item and id_ <= self.last_draw_item:
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self.draw(self.drawItemRects(id_))
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def timerDriven(self):
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self.timer_driven = True
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self.options.setItemChecked(self.td_id, True)
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self.options.setItemChecked(self.ld_id, False)
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def loopDriven(self):
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self.timer_driven = False
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self.options.setItemChecked(self.ld_id, True)
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self.options.setItemChecked(self.td_id, False)
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def defaultLabel(self):
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self.default_label = True
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self.options.setItemChecked(self.dl_id, True)
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self.options.setItemChecked(self.cl_id, False)
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def customLabel(self):
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self.default_label = False
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self.options.setItemChecked(self.dl_id, False)
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self.options.setItemChecked(self.cl_id, True)
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def toggleMinimumDuration(self):
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self.options.setItemChecked(self.md_id,
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not self.options.isItemChecked(self.md_id))
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def stopDrawing(self):
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self.got_stop = True
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def newProgressDialog(self, label, steps, modal):
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d = TQProgressDialog(label, "Cancel", steps, self, "progress", modal)
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if self.options.isItemChecked(self.md_id):
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d.setMinimumDuration(0)
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if not self.default_label:
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d.setLabel(AnimatedThingy(d, label))
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d.setCaption("Please Wait")
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return d
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def draw(self, n):
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if self.timer_driven:
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if self.pb:
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tqWarning("This cannot happen!")
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return
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self.rects = n
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self.pb = self.newProgressDialog("Drawing rectangles.\n"
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"Using timer event.", n, False)
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self.connect(self.pb, TQ_SIGNAL("cancelled()"), self.stopDrawing)
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self.enableDrawingItems(False)
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self.startTimer(0)
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self.got_stop = False
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else: # loop driven with modal progress dialog
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lpb = self.newProgressDialog("Drawing rectangles.\n"
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"Using loop.", n, True)
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p = TQPainter(self)
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for i in range(n):
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lpb.setProgress(i)
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if lpb.wasCancelled():
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break
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self._draw(p)
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self._clear(p)
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lpb.cancel()
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del lpb
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def timerEvent(self, e):
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if not self.got_stop:
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self.pb.setProgress(self.pb.totalSteps() - self.rects)
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self.rects -= 1
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p = TQPainter(self)
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self._draw(p)
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if not self.rects or self.got_stop:
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if not self.got_stop:
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self.pb.setProgress(self.pb.totalSteps())
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self._clear(p)
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self.enableDrawingItems(True)
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self.killTimers()
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self.pb.cancel()
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del self.pb
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self.pb = None
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def _draw(self, p):
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ww = self.width()
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wh = self.height()
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if ww > 8 and wh > 8:
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c = TQColor(randint(0, 255), randint(0, 255), randint(0, 255))
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x = randint(0, ww - 8)
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y = randint(0, wh - 8)
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w = randint(0, ww - x)
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h = randint(0, wh - y)
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p.fillRect(x, y, w, h, TQBrush(c))
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def _clear(self, p):
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p.fillRect(0, 0, self.width(), self.height(), TQBrush(self.eraseColor()))
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if __name__ == "__main__":
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app = TQApplication(sys.argv)
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try:
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n = int(sys.argv[1])
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except:
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n = 1
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wlst = [] # keep a ref around
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for i in range(n):
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cpuw = CPUWaster()
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if i == 0:
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app.setMainWidget(cpuw)
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cpuw.show()
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wlst.append(cpuw)
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app.exec_loop()
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