View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0019905 | Lazarus | LCL | public | 2011-08-05 20:42 | 2020-11-14 17:47 |
| Reporter | Flávio Etrusco | Assigned To | |||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | confirmed | Resolution | reopened | ||
| Product Version | 0.9.31 (SVN) | ||||
| Summary | 0019905: Custom TBitBtn in IDE forms doesn't show glyph on Win32 unless ShowMode is gsmAlways | ||||
| Description | Inside the Lazarus IDE or a plugin/package, a TBitBtn doesn't show the Glyph by default on Win32 (Lazarus is configured to use OS settings). On a new application the Glyph is displayed by default. BTW is gsmApplication really the best default for GlyphShowMode? Can we add some "intelligence" for displaying the glyph if Text is empty? [EDIT] clearing up: Shouldn't we always display the glyph if Text is empty? Steps to reproduce: 1) Open an IDE form (e.g. the AboutForm); 2) Add a TBitBtn in there and add a glyph to it; 3) Configure the IDE (in Options Dialog) to always show glyphs; 4) Open the AboutForm. The TBitBtn doesn't display the glyph. Curiously the glyph is shown for non-custom TBitBtn (e.g. the close button in the AboutForm). | ||||
| Tags | No tags attached. | ||||
| Fixed in Revision | |||||
| LazTarget | - | ||||
| Widgetset | Win32/Win64 | ||||
| Attached Files |
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I fail to see where is the bug here. To be honest I think, that current behavior is OK. After all, showing glyph by default is quite logical for BitBtn, regardless of Lazarus interface decisions, don't you think? |
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Hmm, agreed? The report is about the opposite. My fault actually, the description is far from clear - even I thought it was about the behavior in design-time or something. This bug is about some weirdness in the gsmApplication mode or the IDE project, where a TBitBtn placed in an IDE form only shows glyphs at runtime if GlyphShowMode is gsmAlways. |
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Indeed, the problem happens with Lazarus project only! If I add a TBitBtn into a Lazarus IDE form (like the AboutForm) and select an image, it shows ok at design time but not at run time after compiling Lazarus. If I do the exact same thing for any other project, then it works! The image shows also at run time. The problem happens only on Windows. On Linux / GTK2 the image shows always. How is it possible? Lazarus is supposed to use TBitBtn the same way as any other LCL application. @Maxim: you must have misunderstood the issue. |
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For the IDE Application.ShowButtonGlyphs returns sbgSystem In function TButtonGlyph.CanShow if Application.ShowButtonGlyphs is sbgSystem the result will be SystemShowButtonGlyphs. function SystemShowButtonGlyphs: Boolean; inline; begin Result := ThemeServices.GetOption(toShowButtonImages) = 1; {$ifdef Windows} // force False on windows since gtk and qt can return True Result := False; {$endif} end; So the glyph will not be shown if ShowMode = gsmApplication. In a default application the value of Application.ShowButtonGlyphs on Windows is sbgAlways. This explains the different behaviour between the IDE and a "normal" application. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2011-08-05 20:42 | Flávio Etrusco | New Issue | |
| 2011-08-05 20:42 | Flávio Etrusco | LazTarget | => - |
| 2011-08-05 20:42 | Flávio Etrusco | Widgetset | => Win32/Win64 |
| 2011-10-08 01:53 | Maxim Ganetsky | Status | new => resolved |
| 2011-10-08 01:53 | Maxim Ganetsky | Resolution | open => no change required |
| 2011-10-08 01:53 | Maxim Ganetsky | Assigned To | => Maxim Ganetsky |
| 2011-10-08 01:53 | Maxim Ganetsky | Note Added: 0052762 | |
| 2011-10-08 01:59 | Maxim Ganetsky | Note Edited: 0052762 | |
| 2011-10-08 03:51 | Flávio Etrusco | Note Added: 0052765 | |
| 2011-10-08 03:52 | Flávio Etrusco | Note Edited: 0052765 | |
| 2011-10-08 03:52 | Flávio Etrusco | Assigned To | Maxim Ganetsky => |
| 2011-10-08 03:52 | Flávio Etrusco | Status | resolved => assigned |
| 2011-10-08 03:52 | Flávio Etrusco | Resolution | no change required => reopened |
| 2011-10-08 04:03 | Flávio Etrusco | Reproducibility | have not tried => always |
| 2011-10-08 04:03 | Flávio Etrusco | Description Updated | |
| 2011-10-08 04:06 | Flávio Etrusco | Summary | Inside Lazarus, TBitBtn in doesn't show Glyph by default on Win32 => Custom TBitBtn in IDE forms doesn't show glyph on Win32 unless ShowMode is gsmAlways |
| 2011-10-08 10:22 | Flávio Etrusco | Status | assigned => new |
| 2011-10-09 11:21 | Juha Manninen | Note Added: 0052793 | |
| 2011-10-09 11:21 | Juha Manninen | Status | new => confirmed |
| 2020-11-14 17:47 | Bart Broersma | Note Added: 0126937 |
