#1
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Changes in vizdlg or vizact in Vizard 5?
Hello,
I have a problem running most of my files in Vizard 5: To display text, images, ... I build my own vizdlg.Dialog class to create a panel which I can use to display and hide messages very easily (I used a small tutorial that is somewhere in the Vizard documentation). Since I upgrade to Vizard 5, the background of the panel won't hide anymore. To show you guys what I mean, I created a small example (with a simplified version of my vizdlg.Dialog class). The code pasted below works fine with Vizard 4: the text 'Bla' is displayed for 2 seconds, then the screen goes black However, in Vizard 5, the text will also go away after 2 seconds, but the grey background will stay without any error message. Have there been any changes to the built-in librarys that could cause such a problem? Cheers, Johannes EDIT: I fixed it by changing line 68 'self.panel.addAction(vizact.fadeTo(0,time=fade))' to 'self.panel.background.addAction(vizact.fadeTo(0,t ime=fade))' Code:
import os import sys import viz import vizdlg import vizact import viztask # text panel class class displayInfo(vizdlg.Dialog): def __init__(self,mode = 'fit',fontSize = 50,textAlignment = viz.ALIGN_CENTER,border = True,background = True, padding = 5,**kw): vizdlg.Dialog.__init__(self,**kw) self.fontSize = fontSize self.textAlignment = textAlignment self.textColor = (1,1,1) self.borderDesired = border self.bgDesired = background self._padding = padding # define own color theme blackTheme = viz.getTheme() blackTheme.backColor = (0.4,0.4,0.4,1) blackTheme.lightBackColor = (0.6,0.6,0.6,1) blackTheme.darkBackColor = (0.2,0.2,0.2,1) blackTheme.highBackColor = (0.2,0.2,0.2,1) blackTheme.textColor = (self.textColor) if mode == 'fullscreen': self.panel = vizdlg.Panel(theme = blackTheme,align = vizdlg.ALIGN_CENTER,border = False, background = self.bgDesired) # add panel without border self.panel.background.setScale(5000,5000,1) # if fullscreen is passed, scale the background so it covers fullscreen elif mode == 'fit': self.panel = vizdlg.Panel(theme = blackTheme,align = vizdlg.ALIGN_CENTER, border = self.borderDesired, background = self.bgDesired, padding = self._padding) # add panel self.panel.background.alpha(1) # set background alpha viz.link(viz.CenterCenter,self.panel) # link the panel to center of screen # switch variables to determine state of message panel self.textDisplayed = False # display message def message(self,text,fade = 0): # init text self.text = self.panel.addItem(viz.addText(text)) # if message should be displayed, add text item # set attributes self.text.fontSize(self.fontSize) self.text.alignment(self.textAlignment) self.text.color(self.textColor) # let the panel fade in self.panel.addAction(vizact.fadeTo(1,time=fade)) # fade in of the text (if desired) self.text.addAction(vizact.fadeTo(1,time=fade)) # hide text and panel def hide(self, fade = 0): for item in self.panel.getItems(): self.panel.removeItem(item) self.panel.addAction(vizact.fadeTo(0,time=fade)) # small example textPanel = displayInfo(mode = 'fullscreen',fontSize = 30, textAlignment = viz.ALIGN_LEFT_CENTER) # fullscreen text for introduction text def main(): textPanel.message('Bla') yield viztask.waitTime(2) textPanel.hide() viztask.schedule(main()) viz.go() Last edited by mape2k; 12-09-2014 at 08:38 AM. |
#2
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Thanks for reporting the issue and providing a sample. This is a regression and will be fixed in the next update.
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#3
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Thank you for the quick reply!
While debugging, I also noticed that the background can be faded in and out (e.g. textPanel.message('Bla', fade = 2)), but for text items in a panel the 'addAction(vizact.fadeTo(x))' command does not seem to work. Is that as intended? I would really like the text to fade in and out as well as the background. Cheers, Johannes |
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