Re: [Qt-creator] Problems with Dockwidgets
On Jan 22, 2010, at 12:31 AM, ext Ken Ray wrote: Looks like my message didn't make it. I found the solution and it definitely related to Creator and to user lack of knowledge of Creator. I'm a bit surprised that I was sent on a wild goose chase to resolve this. The answer was surprisingly simple. All I had to do was modify the minimumSize.Width property to the size that I wanted and the geometry.Width picked it up. It seems kinda silly to have several different areas to set the width of the widget i'm playing with, Min size, Max size make sense. But adding a geometry completely messed me up here. Can anyone explain what the rational is here . The relationships in Qt between geometry, size hint, size policy, minimum and maximum size are sometimes not obvious. Trying to wrap it up a little bit, but be sure that what I say isn't the whole story: * You have to distinguish between a widget that is added to a layout or not (dockwidgets are in a layout). * No layout: geometry defines the size of the widget, constrained by minimum and maximum size. * In a layout: the layout takes the size hint from the widget (a size calculated by the widget itself, in case of a dockwidget that depends on the layouts and widgets inside the dockwidget), and depending on the size policy (http://doc.qt.nokia.com/4.6/qsizepolicy.html#Policy-enum), and depending on all the size hints and policies of other widgets in the layout, calculates the actual size of the widget, which is again constrained by minimum and maximum size. After that the geometry property reflects the size of the widget. So, the moment a widget is contained in a layout, its geometry is actually a read-only property. Designer actually sets the geometry property to read-only if you add a widget to a layout. Seems that you hit a bug that Designer doesn't do that when you add a dockwidget to a QMainWindow. You can find a bit more detail (also mentioning stretch factors) e.g. here http://doc.qt.nokia.com/4.6/layout.html Also, when I set the minimum width I got a vertical line on the right side of the dockWidget... something I've been trying to figure out how the sample did it, but with no luck. So I'm currently back playing with Creator and QT. Are there be any relevant books or tutorials dealing with this ? Ken On Jan 21, 2010, at 2:46 PM, Danny Price wrote: We'll still be here when you come back :) On 21 Jan 2010, at 22:09, Coda Highland wrote: On Thu, Jan 21, 2010 at 3:11 PM, Ken Ray k...@ishere.com wrote: I tried qt-interest and not much of a response. Note that this test app I'm trying to build is just like the fontsampler demo that comes with creator/QT. I'm trying to duplicate the dockwidget on the left. How did fontsampler get around this problem ? It seems to me that if Creator can't hold a layout for more than a few clicks there is a serious flaw. It makes working with all the contents related to that dockwidget a pain in the ass. I'm going to go play with Mono now to see how there stuff is . I want some cross platform development that is stable. but if none is stable , then I guess it's back to VS .net .. Mono is pretty gimped, sadly. Most of the good .NET stuff is Microsoft-only junk that's only available on Windows. Even Java would be preferable to .NET if you want cross-platform compatibility. You happened to hit on the one thing I don't like about Qt: dock widgets. I've never had a lot of luck with them, and when I do use them I develop with code, not Designer. There's several things that they don't do quite right. But don't let that one widget turn you off to the toolkit as a whole. Qt's very stable and very robust, and it's the best toolkit available for writing apps that look native on all supported platforms. Consider possibly using some other solution if dock widgets in Designer aren't working for you. Maybe construct the dock widgets in code, or maybe use some non-docking solution. /s/ Adam ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator -- Eike Ziller Software Engineer Nokia, Qt Development Frameworks Nokia gate5 GmbH Firmensitz: Invalidenstr. 117, 10115 Berlin, Germany Registergericht: Amtsgericht Charlottenburg, Berlin: HRB 106443 B Umsatzsteueridentifikationsnummer: DE 812 845 193 Geschäftsführer: Dr. Michael Halbherr, Karim Tähtivuori ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] Problems with Dockwidgets
I tried qt-interest and not much of a response. Note that this test app I'm trying to build is just like the fontsampler demo that comes with creator/QT. I'm trying to duplicate the dockwidget on the left. How did fontsampler get around this problem ? It seems to me that if Creator can't hold a layout for more than a few clicks there is a serious flaw. It makes working with all the contents related to that dockwidget a pain in the ass. I'm going to go play with Mono now to see how there stuff is . I want some cross platform development that is stable. but if none is stable , then I guess it's back to VS .net .. On Jan 20, 2010, at 2:44 PM, Thomas Dähling wrote: Hi Ken, so if this also happens in the external designer, then you might want to switch this discussion over to qt-interest if you consider this to be a Qt defect :-) /Thomas 2010/1/20 Ken Ray k...@ishere.com: Not true. I just tried it in the external Designer. I changed the size of the dockWidget to 250. Then simply clicked on another widget.. a textEdit. The dockWidget immediately resized itself automatically. On Jan 20, 2010, at 1:51 PM, Coda Highland wrote: That's Designer, which happens to be embedded in Creator. The only way this is directly Creator-related is if it doesn't happen when using the external Designer. /s/ Adam On Wed, Jan 20, 2010 at 3:28 PM, Ken Ray k...@ishere.com wrote: This is directly related to Creator. I'm building the layout of the form using Creator, and Creator is not saving my changes. On Jan 20, 2010, at 1:12 PM, Coda Highland wrote: This question should be directed toward the qt-interest mailing list. The qt-creator ML is specifically for discussion about the Qt Creator IDE, not for programs you're writing using it. /s/ Adam On Wed, Jan 20, 2010 at 2:58 PM, Ken Ray k...@ishere.com wrote: Hey, I'm getting started with QT, so bear with me. I've been trying to work with a Dockwidget that has a treewidget inside of it. 1) I did a layout vertical layout on the dockWidgetContents and it caused the contained treeview to shrink in size (large borders), is there a way to avoid that behavior ? 2) I changed the size of the dockWidget to a certain width, with policy being preferred, preferred. This is all done in Creator 1.3.1 . I then opened a source file and then went bak to the ui view. The dockWidget had reset it's size back to it's original size. There doesn't seem to be anything I can do to keep it from auto resizing itself. Is this a bug ? Is there a way to fix this problem ? ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] Problems with Dockwidgets
If you want a fixed size widget, set the size policy for that widget to fixed. On Jan 21, 2010, at 11:11 AM, Ken Ray wrote: I tried qt-interest and not much of a response. Note that this test app I'm trying to build is just like the fontsampler demo that comes with creator/QT. I'm trying to duplicate the dockwidget on the left. How did fontsampler get around this problem ? It seems to me that if Creator can't hold a layout for more than a few clicks there is a serious flaw. It makes working with all the contents related to that dockwidget a pain in the ass. I'm going to go play with Mono now to see how there stuff is . I want some cross platform development that is stable. but if none is stable , then I guess it's back to VS .net .. On Jan 20, 2010, at 2:44 PM, Thomas Dähling wrote: Hi Ken, so if this also happens in the external designer, then you might want to switch this discussion over to qt-interest if you consider this to be a Qt defect :-) /Thomas 2010/1/20 Ken Ray k...@ishere.com: Not true. I just tried it in the external Designer. I changed the size of the dockWidget to 250. Then simply clicked on another widget.. a textEdit. The dockWidget immediately resized itself automatically. On Jan 20, 2010, at 1:51 PM, Coda Highland wrote: That's Designer, which happens to be embedded in Creator. The only way this is directly Creator-related is if it doesn't happen when using the external Designer. /s/ Adam On Wed, Jan 20, 2010 at 3:28 PM, Ken Ray k...@ishere.com wrote: This is directly related to Creator. I'm building the layout of the form using Creator, and Creator is not saving my changes. On Jan 20, 2010, at 1:12 PM, Coda Highland wrote: This question should be directed toward the qt-interest mailing list. The qt-creator ML is specifically for discussion about the Qt Creator IDE, not for programs you're writing using it. /s/ Adam On Wed, Jan 20, 2010 at 2:58 PM, Ken Ray k...@ishere.com wrote: Hey, I'm getting started with QT, so bear with me. I've been trying to work with a Dockwidget that has a treewidget inside of it. 1) I did a layout vertical layout on the dockWidgetContents and it caused the contained treeview to shrink in size (large borders), is there a way to avoid that behavior ? 2) I changed the size of the dockWidget to a certain width, with policy being preferred, preferred. This is all done in Creator 1.3.1 . I then opened a source file and then went bak to the ui view. The dockWidget had reset it's size back to it's original size. There doesn't seem to be anything I can do to keep it from auto resizing itself. Is this a bug ? Is there a way to fix this problem ? ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] Problems with Dockwidgets
The demo is not fixed. If you look at it running it is completely sizable ... which is what I want . On Jan 21, 2010, at 1:15 PM, John Vilburn wrote: If you want a fixed size widget, set the size policy for that widget to fixed. On Jan 21, 2010, at 11:11 AM, Ken Ray wrote: I tried qt-interest and not much of a response. Note that this test app I'm trying to build is just like the fontsampler demo that comes with creator/QT. I'm trying to duplicate the dockwidget on the left. How did fontsampler get around this problem ? It seems to me that if Creator can't hold a layout for more than a few clicks there is a serious flaw. It makes working with all the contents related to that dockwidget a pain in the ass. I'm going to go play with Mono now to see how there stuff is . I want some cross platform development that is stable. but if none is stable , then I guess it's back to VS .net .. On Jan 20, 2010, at 2:44 PM, Thomas Dähling wrote: Hi Ken, so if this also happens in the external designer, then you might want to switch this discussion over to qt-interest if you consider this to be a Qt defect :-) /Thomas 2010/1/20 Ken Ray k...@ishere.com: Not true. I just tried it in the external Designer. I changed the size of the dockWidget to 250. Then simply clicked on another widget.. a textEdit. The dockWidget immediately resized itself automatically. On Jan 20, 2010, at 1:51 PM, Coda Highland wrote: That's Designer, which happens to be embedded in Creator. The only way this is directly Creator-related is if it doesn't happen when using the external Designer. /s/ Adam On Wed, Jan 20, 2010 at 3:28 PM, Ken Ray k...@ishere.com wrote: This is directly related to Creator. I'm building the layout of the form using Creator, and Creator is not saving my changes. On Jan 20, 2010, at 1:12 PM, Coda Highland wrote: This question should be directed toward the qt-interest mailing list. The qt-creator ML is specifically for discussion about the Qt Creator IDE, not for programs you're writing using it. /s/ Adam On Wed, Jan 20, 2010 at 2:58 PM, Ken Ray k...@ishere.com wrote: Hey, I'm getting started with QT, so bear with me. I've been trying to work with a Dockwidget that has a treewidget inside of it. 1) I did a layout vertical layout on the dockWidgetContents and it caused the contained treeview to shrink in size (large borders), is there a way to avoid that behavior ? 2) I changed the size of the dockWidget to a certain width, with policy being preferred, preferred. This is all done in Creator 1.3.1 . I then opened a source file and then went bak to the ui view. The dockWidget had reset it's size back to it's original size. There doesn't seem to be anything I can do to keep it from auto resizing itself. Is this a bug ? Is there a way to fix this problem ? ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] Problems with Dockwidgets
On Thu, Jan 21, 2010 at 3:11 PM, Ken Ray k...@ishere.com wrote: I tried qt-interest and not much of a response. Note that this test app I'm trying to build is just like the fontsampler demo that comes with creator/QT. I'm trying to duplicate the dockwidget on the left. How did fontsampler get around this problem ? It seems to me that if Creator can't hold a layout for more than a few clicks there is a serious flaw. It makes working with all the contents related to that dockwidget a pain in the ass. I'm going to go play with Mono now to see how there stuff is . I want some cross platform development that is stable. but if none is stable , then I guess it's back to VS .net .. Mono is pretty gimped, sadly. Most of the good .NET stuff is Microsoft-only junk that's only available on Windows. Even Java would be preferable to .NET if you want cross-platform compatibility. You happened to hit on the one thing I don't like about Qt: dock widgets. I've never had a lot of luck with them, and when I do use them I develop with code, not Designer. There's several things that they don't do quite right. But don't let that one widget turn you off to the toolkit as a whole. Qt's very stable and very robust, and it's the best toolkit available for writing apps that look native on all supported platforms. Consider possibly using some other solution if dock widgets in Designer aren't working for you. Maybe construct the dock widgets in code, or maybe use some non-docking solution. /s/ Adam ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] Problems with Dockwidgets
We'll still be here when you come back :) On 21 Jan 2010, at 22:09, Coda Highland wrote: On Thu, Jan 21, 2010 at 3:11 PM, Ken Ray k...@ishere.com wrote: I tried qt-interest and not much of a response. Note that this test app I'm trying to build is just like the fontsampler demo that comes with creator/QT. I'm trying to duplicate the dockwidget on the left. How did fontsampler get around this problem ? It seems to me that if Creator can't hold a layout for more than a few clicks there is a serious flaw. It makes working with all the contents related to that dockwidget a pain in the ass. I'm going to go play with Mono now to see how there stuff is . I want some cross platform development that is stable. but if none is stable , then I guess it's back to VS .net .. Mono is pretty gimped, sadly. Most of the good .NET stuff is Microsoft-only junk that's only available on Windows. Even Java would be preferable to .NET if you want cross-platform compatibility. You happened to hit on the one thing I don't like about Qt: dock widgets. I've never had a lot of luck with them, and when I do use them I develop with code, not Designer. There's several things that they don't do quite right. But don't let that one widget turn you off to the toolkit as a whole. Qt's very stable and very robust, and it's the best toolkit available for writing apps that look native on all supported platforms. Consider possibly using some other solution if dock widgets in Designer aren't working for you. Maybe construct the dock widgets in code, or maybe use some non-docking solution. /s/ Adam ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] Problems with Dockwidgets
Looks like my message didn't make it. I found the solution and it definitely related to Creator and to user lack of knowledge of Creator. I'm a bit surprised that I was sent on a wild goose chase to resolve this. The answer was surprisingly simple. All I had to do was modify the minimumSize.Width property to the size that I wanted and the geometry.Width picked it up. It seems kinda silly to have several different areas to set the width of the widget i'm playing with, Min size, Max size make sense. But adding a geometry completely messed me up here. Can anyone explain what the rational is here . Also, when I set the minimum width I got a vertical line on the right side of the dockWidget... something I've been trying to figure out how the sample did it, but with no luck. So I'm currently back playing with Creator and QT. Are there be any relevant books or tutorials dealing with this ? Ken On Jan 21, 2010, at 2:46 PM, Danny Price wrote: We'll still be here when you come back :) On 21 Jan 2010, at 22:09, Coda Highland wrote: On Thu, Jan 21, 2010 at 3:11 PM, Ken Ray k...@ishere.com wrote: I tried qt-interest and not much of a response. Note that this test app I'm trying to build is just like the fontsampler demo that comes with creator/QT. I'm trying to duplicate the dockwidget on the left. How did fontsampler get around this problem ? It seems to me that if Creator can't hold a layout for more than a few clicks there is a serious flaw. It makes working with all the contents related to that dockwidget a pain in the ass. I'm going to go play with Mono now to see how there stuff is . I want some cross platform development that is stable. but if none is stable , then I guess it's back to VS .net .. Mono is pretty gimped, sadly. Most of the good .NET stuff is Microsoft-only junk that's only available on Windows. Even Java would be preferable to .NET if you want cross-platform compatibility. You happened to hit on the one thing I don't like about Qt: dock widgets. I've never had a lot of luck with them, and when I do use them I develop with code, not Designer. There's several things that they don't do quite right. But don't let that one widget turn you off to the toolkit as a whole. Qt's very stable and very robust, and it's the best toolkit available for writing apps that look native on all supported platforms. Consider possibly using some other solution if dock widgets in Designer aren't working for you. Maybe construct the dock widgets in code, or maybe use some non-docking solution. /s/ Adam ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] Problems with Dockwidgets
2010/1/21 Ken Ray k...@ishere.com: Looks like my message didn't make it. Oh it did make it previously. :-) ... Also, when I set the minimum width I got a vertical line on the right side of the dockWidget... something I've been trying to figure out how the sample did it, but with no luck. So I'm currently back playing with Creator and QT. Are there be any relevant books or tutorials dealing with this ? I have to admit that your first post regarding this made me look through the Qt documentation and I could not find anything obvious about this (am I just not seeing the forest for the trees?). The major issue, I guess, is that it's not necessarily obvious what you have to specify how unless you actually start looking up the documentation for these specific attributes. Maybe it is worthwhile to have a simple tutorial for creating forms - I know that it is actually quite simple to grasp and incredibly easy to use once you grasped it, but it took me a few moments to find these things out myself. This documentation discussion is now going slightly off-topic, though and is probably more suited for qt-interest. We might want to start a new thread regarding this there :-) /Thomas ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
[Qt-creator] Problems with Dockwidgets
Hey, I'm getting started with QT, so bear with me. I've been trying to work with a Dockwidget that has a treewidget inside of it. 1) I did a layout vertical layout on the dockWidgetContents and it caused the contained treeview to shrink in size (large borders), is there a way to avoid that behavior ? 2) I changed the size of the dockWidget to a certain width, with policy being preferred, preferred. This is all done in Creator 1.3.1 . I then opened a source file and then went bak to the ui view. The dockWidget had reset it's size back to it's original size. There doesn't seem to be anything I can do to keep it from auto resizing itself. Is this a bug ? Is there a way to fix this problem ? ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] Problems with Dockwidgets
Hi Ken, so if this also happens in the external designer, then you might want to switch this discussion over to qt-interest if you consider this to be a Qt defect :-) /Thomas 2010/1/20 Ken Ray k...@ishere.com: Not true. I just tried it in the external Designer. I changed the size of the dockWidget to 250. Then simply clicked on another widget.. a textEdit. The dockWidget immediately resized itself automatically. On Jan 20, 2010, at 1:51 PM, Coda Highland wrote: That's Designer, which happens to be embedded in Creator. The only way this is directly Creator-related is if it doesn't happen when using the external Designer. /s/ Adam On Wed, Jan 20, 2010 at 3:28 PM, Ken Ray k...@ishere.com wrote: This is directly related to Creator. I'm building the layout of the form using Creator, and Creator is not saving my changes. On Jan 20, 2010, at 1:12 PM, Coda Highland wrote: This question should be directed toward the qt-interest mailing list. The qt-creator ML is specifically for discussion about the Qt Creator IDE, not for programs you're writing using it. /s/ Adam On Wed, Jan 20, 2010 at 2:58 PM, Ken Ray k...@ishere.com wrote: Hey, I'm getting started with QT, so bear with me. I've been trying to work with a Dockwidget that has a treewidget inside of it. 1) I did a layout vertical layout on the dockWidgetContents and it caused the contained treeview to shrink in size (large borders), is there a way to avoid that behavior ? 2) I changed the size of the dockWidget to a certain width, with policy being preferred, preferred. This is all done in Creator 1.3.1 . I then opened a source file and then went bak to the ui view. The dockWidget had reset it's size back to it's original size. There doesn't seem to be anything I can do to keep it from auto resizing itself. Is this a bug ? Is there a way to fix this problem ? ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
