Re: [Lazarus] Z-order not working
Graeme, Does someone else have access to your account? Because the questions you're asking are trivial to answer. TEdit is a windowed control and as such its rectangular clipping path is controlled by the Z-order of its siblings. TImage is a graphic control and as such its rectangular clipping path is controlled by the Z-order of its parent window. If you case, the image, edit, and status bar all have the same parent window, thus the image will always be clipped by the edit and status bar. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Z-order not working
TImage is a graphic control (it doesn't have its own handle), thus cannot be put above any other control than it's parent. It should be a place into another control (i.e. TPanel) that is TWinControl (and does have a handle) thanks, Dmitry On Wed, Apr 1, 2015 at 9:45 AM, Graeme Geldenhuys mailingli...@geldenhuys.co.uk wrote: Hi, Why can I place a TEdit above a StatusBar, but a TImage I can't? See attached screenshot. Regards, - Graeme - -- fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal http://fpgui.sourceforge.net/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Z-order not working
Hi Dmitry, On 2015-04-01 15:01, Dmitry Boyarintsev wrote: TImage is a graphic control (it doesn't have its own handle), Ah, okay. One of those differences between LCL and fpGUI. It should be a place into another control (i.e. TPanel) that is TWinControl (and does have a handle) And that's where my second (actually I lost count today) problem lies. How do I add a TPanel inside a TStatusBar for example. The TStatusbar doesn't seem to accept child widgets. My thinking is based on the auto-resizing issue of StatusBar Panels I mentioned earlier. What I'm trying to do is paint an image at the right edge of the StatusBar. A quick test reveals that I can't place a TPanel inside a TStatusBar. It seems the TStatusBar doesn't accept children. So based on that and what you said, I have to now place a TPanel on the form, then place a TImage inside the TPanel, then make sure the z-order of the TPanel is correct so it appears above the TStatusBar, then position the TPanel at the correct location relative to the right edge of the statusbar. This is a pretty nasty solution. Is there any better solution than the above? Regards, - Graeme - -- fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal http://fpgui.sourceforge.net/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Z-order not working
Hi Anthony, On 2015-04-01 15:01, Anthony Walter wrote: If you case, the image, edit, and status bar all have the same parent window, thus the image will always be clipped by the edit and status bar. Many thanks for the explanation. I forgot the fact that a graphic control doesn't have a handle. And no, nobody hijacked my email account. :-) I'm just not used to working with LCL any more. fpGUI seems so much simpler now, and with way less workarounds. Regards, - Graeme - -- fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal http://fpgui.sourceforge.net/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Z-order not working
Graeme, Personally, I never use a status bar, just because if I want something in the footer, it usually involves more than just text. For example I may want editor controls, images, buttons, and text in the bottom area of the form. See the screenshot below as an example coming from one of my apps: http://cache.getlazarus.org/images/showcase/linux.business.charity.jpg See the form in back can have a search function, a date range button, and you can remove it by clicking close? You can do whatever you want in the bottom area of a a form if you just reserve it by overriding GetLogicalClientRect and using control alignments. You don't even need a panel, just a trivial piece of code in the form. If you're like me you'll even put that logic in a base form class, make it optional, and use that type of base form anytime you might want a status like area. Oh and if you're concerned about drawing the size grip handle in the bottom right, the Theme API does that for you, or you can even write you own one time reusable code to draw size grip handles. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Z-order not working
On 2015-04-01 15:42, Anthony Walter wrote: Personally, I never use a status bar, just because if I want something in the footer, it usually involves more than just text. Well, I'm modifying an existing project for a client, so I don't have much say in that regard. A nice idea though. All I wanted to do (which should have taken 5 minutes) is something like this: http://edysoftware.com/delphi/index.php?pilih=invoiceid=159 Simple status lights appearing on the right edge of the statusbar. But because of the damn platform inconsistencies with LCL it doesn't work. [sorry, I'm just a bit frustrated at this point] My initial solution worked fine under Windows, but totally screwed on Linux and FreeBSD because of the statusbar panels resizing themselves, and not to the width values I set, and also the statusbar panels don't have bevels displaying. Clearly nobody uses the StatusBar widget, or they simply don't pay attention, or they only develop for LCL-Win32/64 (where most LCL things seem to work). If you're like me you'll even put that logic in a base form class, make it optional, and use that type of base form anytime you might want a status like area. Can Lazarus already handle such developer defined components? I remember the good old days of Delphi 7. Define a nice Form or Frame template. Select everything and drag it to the component palette and magically you have a developer defined component you can reuse. D7 also had some shared code repository setting if I remember correctly, for whole programming units. Regards, - Graeme - -- fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal http://fpgui.sourceforge.net/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Z-order not working
On Wed, Apr 1, 2015 at 5:19 PM, Graeme Geldenhuys mailingli...@geldenhuys.co.uk wrote: Can Lazarus already handle such developer defined components? I remember the good old days of Delphi 7. Define a nice Form or Frame template. Select everything and drag it to the component palette and magically you have a developer defined component you can reuse. I'm not sure about drag-drop (i only have Delphi 2 available and last time i used any more recent Delphi was the personal edition of 6 -ithink- that i got from a magazine CD cover years ago). But you can create custom designable components using frames in Lazarus. They're not as neat as a custom component made in pure code (and i honestly haven't yet figured out if i can modify the components in a frame after placing them or not and what happens if i modify the frame after that, so i usually avoid touching frames after making them). I use frames all the time (although because of the ambiguousness i mentioned i almost always instantiate them via code instead of via the component bar). -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Z-order not working
On Wed, Apr 1, 2015 at 10:23 AM, Graeme Geldenhuys mailingli...@geldenhuys.co.uk wrote: And that's where my second (actually I lost count today) problem lies. How do I add a TPanel inside a TStatusBar for example. The TStatusbar doesn't seem to accept child widgets. I'd think that's an editor (design time) limitation . TStatusBar is TWinControl (has it's own handle). Thus it can accept any child control. If you assign Panel's parent in run time Panel1.Parent:=StatusBar1; You might get what you're looking for. Keep in mind though StatusBar rearranges its children automatically. So based on that and what you said, I have to now place a TPanel on the form, then place a TImage inside the TPanel, then make sure the z-order of the TPanel is correct so it appears above the TStatusBar, then position the TPanel at the correct location relative to the right edge of the statusbar. This is a pretty nasty solution. The only nastiness about it is that TPanel might draw a background, thus the transparent image would look square. Let me see... -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Z-order not working
If all you want to do is add graphic indicators to a panel, just fill out DrawPanel and use StatusBar.Canvas. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Z-order not working
On Wed, Apr 1, 2015 at 9:45 AM, Graeme Geldenhuys mailingli...@geldenhuys.co.uk wrote: Why can I place a TEdit above a StatusBar, but a TImage I can't? See attached screenshot. Follow up on the forum. http://forum.lazarus.freepascal.org/index.php/topic,27932.0.html thanks, Dmitry -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
