View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0031826 | Lazarus | IDE | public | 2017-05-16 21:02 | 2018-03-17 13:44 |
| Reporter | Theo van Oosten | Assigned To | Zeljan Rikalo | ||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | closed | Resolution | fixed | ||
| Platform | Linux | OS | Mint | ||
| Product Version | 1.6.4 | ||||
| Summary | 0031826: Main window cannot be resized | ||||
| Description | Since version 1.6.2 the main window cannot be resized. After restoring 1.6 it worked again. | ||||
| Steps To Reproduce | Install Lazarus | ||||
| Additional Information | At first I thought it depends on the version of Linux kernel. But many times installing different versions of Lazarus and different versions of the kernel and resetting the snapshot in a virtualbox machine in between to get to a clean install, shows the problem only depends on the version of Lazarus, starting at version 1.6.2 | ||||
| Tags | No tags attached. | ||||
| Fixed in Revision | 55184 | ||||
| LazTarget | - | ||||
| Widgetset | |||||
| Attached Files |
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| related to | 0031950 | resolved | Zeljan Rikalo | Gtk2: Form with constraints cannot resize |
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Please bisect the guilty revision. Thanks! |
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Does it work with 1.8RC1 or trunk? Which "main window" do you mean? Main window of Lazarus? Main window of your application? I don't believe that "Install Lazarus" is enough to reproduce the issue. |
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IMO, he's talking about lazarus main window. |
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Yes, I mean the Lazarus main window: I can only see some of the tabs with controls. Also the maximize icon (+) is missing. I rechecked by installing 1.6 again: the maximize icon is present in that version. I did not check 1.8RC1 because I use only stable versions. In this case this is a regression, happening in version 1.6.2 |
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> I did not check 1.8RC1 because I use only stable versions You can use only stable versions but can (and should) test release candidates as well - the one thing does not rule out the other :) |
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Confirmed that lazarus main window cannot be resized under gtk2 linux - trunk lazarus 1.9 r54969...well it can be resized in width but not shrinked, height cannot be resized in any way. Under Qt works fine. So this is still valid bug in 1.8 fixes and trunk. |
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> height cannot be resized in any way this is wanted (there is the option IDE options -> Environment -> Window -> Automatically adjust IDE main window height) > it can be resized in width but not shrunk this is the bug. I remember I experienced the same issue when I tested something else on Linux. I don't remember if IDE was built with Gtk2 or Qt |
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The height is adjusted automatically unless the option for it is off. Why should a user change the height? I can change the width also when built for GTK2. It must be a window manager related issue. The report does not mention which window manager is used. I use KDE + KWin myself. |
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I'm using KDE Plasma + KWin on Fedora 24 64bit and cannot resize height in any way, width only to bigger but not to smaller value - so I doubt it's wm issue. BUT, I didn't touch any default settings for IDE options -> Env -> Window -> Automatically adjust .... |
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> ... and cannot resize height in any way. That is by design. However width should be adjustable. |
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Only the main window is effected. All other windows of the ide can be resized and maximized. So it is not a problem with a window manager. Did anyone notice the absence of the maximize icon (+)??? |
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I don't know what happened to the maximize button but it is not really needed in the main window unless it works as a docking master window. The window cannot be maximized anyway in the normal sense. Why would the button be there? |
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IMO, this have to do something with fixed size of the form (constraints) and gtk2 does not like it. |
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It must be a side effect of some bug fix. Because the constraints code didn't change between 1.6.0 and 1.6.2 |
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Under gtk2/gtk3 you cannot resize width less than menubar size. So that's the reason of this problem. |
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> Under gtk2/gtk3 you cannot resize width less than menubar size. Has anything changed regarding this? AFAIK it was possible before: 0028031 |
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No it wasn't. Gtk2 works in that way (and that issue you mentioned is resolved as "no change required). Right now tested thunderbird and firefox, and width cannot be smaller than menubar width (menubar width = top items width + spacings), so IMO this should be resolved as "no change required". |
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Zeljko, if you look at the screenshot in 0028031 you'll see that the window is resized so that menu bar is partly hidden. Maybe Thunderbird/Firefox uses some constraints. But there is no limitation in LCL applications. Please also take a look at Gtk2Resize.mp4 - you'll see the effect. The problem is when the component palette needs to become higher - you cannot shrink the width of the window over the point where a new component row has to be added. This is a valid issue. |
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My problem is not that the main window can not be made smaller, but I can not make it bigger! I want to see all tabs of the packages in case I am searching for a specific item. Now I must use the small arrow on the side and click on it to see the other tabs. Yes, I do not need the maximize button, but I mentioned it as an indicator to the cause of the problem. I do not think gtk2/3 is the problem, because in 1.6 I could resize the height too(!), only after releasing the mouse button the height went back to it's original size. That is not done by gtk2/3 but by the application. Besides, if I would use the maximize button in 1.6, it's not just the width that is maximized, the height too!! If gtk2/3 was controlling it, that would not happen. Extra hint: When I move the mouse on the side of the window in 1.6, the mouse pointer would change from an arrow to >| on the right side and a ^ with a line on top on the bottom of the window. In 1.6.2 and above this still happens with all the other windows, but not with the main window. So there is no longer a constraint on the size of the main window, but the size is frozen, unalterable. I created an application with max. and min. size equal to the initial size, so the size cannot be changed. But still the mouse pointer will change at the sides, the sides just cannot be moved. IMHO there is a boolean attribute of the main window that controls if the window is fixed in size toggled from false to true or something like that. That would explain why the maximize button disappeared at the same time the window cannot be resized. |
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Correction!!! I tested my self created application on Lazarus 1.6.4 again and the mouse pointer will not change and the maximize button is gone! Retesting on version 1.6 and the mouse changes and the maximize button is back. So what ever is effecting the main window of Lazarus is effecting my application as well. Setting the constraints of my application larger will make the maximize button reappear and the mouse pointer changes again on version 1.6.4, so I am wrong: It might be just the width constraint of the main window of Lazarus being too small. |
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Please test with trunk >= r55184 |
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> Please test with trunk >= r55184 Works fine for me. Thanks! |
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Please test and close if ok. Note that revision r55184 will be merged into Lazarus 1.8 RC3 , so test with trunk or wait for RC3. |
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I agree with AlexeyT (0031950) that the code in gtk2proc.inc is wrong, the "or" should be "and". This error was also present in fpc 2.6.4, so this is not the thing that changed, causing the problem with the main window. But if fixing the code in gtk2proc.inc also fixes the problem with the main window, I am happy. I checked my own application with version 1.6.4 and to my suprize I only needed to enlarge just 1 of the constraints to get the maximize button back. The mouse would change at the sides in the direction (up/down or left/right) where the constraint was enlarged and I could resize the window, but not at the sides in the other direction (left/right or up/down). This would not happen if the code in gtk2proc.inc is the cause of the problem, so..... But if Ondrej Pokorny has checked it, it must be fine. I will wait for the release of 1.8 to check it. |
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> But if Ondrej Pokorny has checked it, it must be fine. You may have experienced a different problem. Gtk is quite a fun and capricious girl :) |
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Tested it with version 1.8, everything OK! |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2017-05-16 21:02 | Theo van Oosten | New Issue | |
| 2017-05-16 21:50 | Ondrej Pokorny | Note Added: 0100342 | |
| 2017-05-17 17:19 | Juha Manninen | Note Added: 0100365 | |
| 2017-05-17 17:23 | Juha Manninen | Note Edited: 0100365 | View Revisions |
| 2017-05-17 20:41 | Zeljan Rikalo | Note Added: 0100367 | |
| 2017-05-17 21:44 | Theo van Oosten | Note Added: 0100371 | |
| 2017-05-17 21:51 | Ondrej Pokorny | Note Added: 0100372 | |
| 2017-05-18 14:12 | Zeljan Rikalo | LazTarget | => - |
| 2017-05-18 14:12 | Zeljan Rikalo | Note Added: 0100436 | |
| 2017-05-18 14:12 | Zeljan Rikalo | Status | new => confirmed |
| 2017-05-18 14:47 | Ondrej Pokorny | Note Added: 0100438 | |
| 2017-05-18 14:49 | Juha Manninen | Note Added: 0100439 | |
| 2017-05-18 14:50 | Juha Manninen | Note Edited: 0100439 | View Revisions |
| 2017-05-18 14:53 | Juha Manninen | Note Edited: 0100439 | View Revisions |
| 2017-05-18 14:54 | Juha Manninen | Note Edited: 0100439 | View Revisions |
| 2017-05-18 23:42 | Zeljan Rikalo | Note Added: 0100466 | |
| 2017-05-18 23:52 | Juha Manninen | Note Added: 0100470 | |
| 2017-05-19 09:47 | Theo van Oosten | Note Added: 0100481 | |
| 2017-05-19 13:44 | Theo van Oosten | Note Edited: 0100481 | View Revisions |
| 2017-05-19 13:45 | Theo van Oosten | Note Edited: 0100481 | View Revisions |
| 2017-05-19 17:51 | Juha Manninen | Note Added: 0100496 | |
| 2017-05-19 18:18 | Zeljan Rikalo | Note Added: 0100497 | |
| 2017-05-19 19:54 | Ondrej Pokorny | Note Added: 0100505 | |
| 2017-05-20 22:05 | Juha Manninen | Note View State: 0100466: private | |
| 2017-05-22 10:13 | Zeljan Rikalo | Note Added: 0100581 | |
| 2017-05-22 10:18 | Ondrej Pokorny | Note Added: 0100582 | |
| 2017-05-22 12:38 | Juha Manninen | Note View State: 0100466: public | |
| 2017-05-22 12:48 | Zeljan Rikalo | Note Added: 0100595 | |
| 2017-05-22 16:43 | Ondrej Pokorny | Note Added: 0100606 | |
| 2017-05-22 16:44 | Ondrej Pokorny | File Added: Gtk2Resize.mp4 | |
| 2017-05-25 12:40 | Theo van Oosten | Note Added: 0100671 | |
| 2017-06-07 18:07 | Theo van Oosten | Note Added: 0100936 | |
| 2017-06-07 18:18 | Theo van Oosten | Note Edited: 0100936 | View Revisions |
| 2017-06-07 18:32 | Zeljan Rikalo | Note Added: 0100937 | |
| 2017-06-07 20:21 | Ondrej Pokorny | Note Added: 0100938 | |
| 2017-06-08 16:49 | Zeljan Rikalo | Fixed in Revision | => 55184 |
| 2017-06-08 16:49 | Zeljan Rikalo | Note Added: 0100946 | |
| 2017-06-08 16:49 | Zeljan Rikalo | Status | confirmed => resolved |
| 2017-06-08 16:49 | Zeljan Rikalo | Resolution | open => fixed |
| 2017-06-08 16:49 | Zeljan Rikalo | Assigned To | => Zeljan Rikalo |
| 2017-06-08 16:51 | Zeljan Rikalo | Relationship added | related to 0031950 |
| 2017-06-09 16:40 | Theo van Oosten | Note Added: 0100975 | |
| 2017-06-09 17:09 | Ondrej Pokorny | Note Added: 0100978 | |
| 2018-03-17 13:44 | Theo van Oosten | Note Added: 0107195 | |
| 2018-03-17 13:44 | Theo van Oosten | Status | resolved => closed |
