Re: Using a TextView as a sort of Hbox with wrapping
On Tue, Jan 28, 2014 at 1:30 AM, Tristan Van Berkom tris...@upstairslabs.com wrote: You can get the behavior you are looking for with EggWrapBox: https://git.gnome.org/browse/libegg/tree/libegg/wrapbox Just copy the eggwrapbox.[ch] and compile it as a part of your code (or compile a libegg separately and link to it if LGPL is a problem for you). That looks fairly decent! Unfortunately I can't compile in extra C code (I'm doing this in a high level language, Pike, and I want this to work on an unmodified install of Pike - I do build my own Pike on Linux, but my clients generally use a pre-built), so I can't use this directly. And... that is a LOT of code (2641 lines), though a lot of it looks like stuff that would be way shorter in a high level language. I don't know that I want to port it to Pike, even if it's possible to do that. But it does look good, and it answers the big question (I can't be the first person to want this, so what did other people do?). ... also the EggWrapBox handles height-for-width geometry well for it's children, while textview itself does some height-for-width, I'm not sure it is done well for embedded child widgets What do you mean by height-for-width here? I just tried on GTK 2.24.10 on Windows and it failed to wrap the way I expected, so I'm not sure what's going on (the same version of GTK on Linux worked fine). Is that the sort of issue you mean? ChrisA ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Using a TextView as a sort of Hbox with wrapping
On Tue, 2014-01-28 at 01:56 +1100, Chris Angelico wrote: On Tue, Jan 28, 2014 at 1:30 AM, Tristan Van Berkom tris...@upstairslabs.com wrote: You can get the behavior you are looking for with EggWrapBox: https://git.gnome.org/browse/libegg/tree/libegg/wrapbox Just copy the eggwrapbox.[ch] and compile it as a part of your code (or compile a libegg separately and link to it if LGPL is a problem for you). That looks fairly decent! Unfortunately I can't compile in extra C code (I'm doing this in a high level language, Pike, and I want this to work on an unmodified install of Pike - I do build my own Pike on Linux, but my clients generally use a pre-built), so I can't use this directly. And... that is a LOT of code (2641 lines), though a lot of it looks like stuff that would be way shorter in a high level language. I don't know that I want to port it to Pike, even if it's possible to do that. But it does look good, and it answers the big question (I can't be the first person to want this, so what did other people do?). ... also the EggWrapBox handles height-for-width geometry well for it's children, while textview itself does some height-for-width, I'm not sure it is done well for embedded child widgets What do you mean by height-for-width here? I just tried on GTK 2.24.10 on Windows and it failed to wrap the way I expected, so I'm not sure what's going on (the same version of GTK on Linux worked fine). Is that the sort of issue you mean? Sorry I did not take into account that you were working with the GTK+2 library and not GTK+3. height for width is a geometry management system which says to the widget: o What is your minimum width and what is your natural width ? o Oh... so you can fit into 40 pixels but you would prefer 80 ! o Ok I've decided that, taking into account all horizontal space, you will receive 60 pixels in width, how much height do you need for a width of 60 pixels ? o Ah, you want 20 height ? we're done here, you will receive 60 pixels in width and 20 pixels in height. This geometry management is more complex than just: what is your width height but allows dynamic content such as wrapping labels to unwrap and fit the window allocation, leaving more vertical space for other widgets above or below a wrapping label which might desire that space. GtkTextView had it's own way of doing height-for-width internally, insomuch that it would eventually ask for enough height to fit the wrapping text into whatever width you had given it. GTK+3 has this geometry management built-in, but GTK+2 does not (so doing things like EggWrapBox with GTK+2 is more tricky). If you are stuck with GTK+2, I suggest you take a look into GtkToolPalette, you might be able to trick your statusbar items into being GtkToolItems and use the wrapping behaviour of GtkToolPalette to achieve the same effect (or at least use some prior art in there, I think you are stuck with the expanders if you use GtkToolPalette directly... GtkToolItemGroup would have the precise code you are looking for). Cheers, -Tristan ChrisA ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Using a TextView as a sort of Hbox with wrapping
On Tue, Jan 28, 2014 at 3:00 AM, Tristan Van Berkom tris...@upstairslabs.com wrote: Sorry I did not take into account that you were working with the GTK+2 library and not GTK+3. Ah, I should have mentioned, sorry. There has been talk of supporting GTK3 in Pike, but I won't move to it till I can confidently expect that my clients will have it. (It's kinda weird. I'm using a language that's more designed for servers - web servers, MUD servers, and so on - and writing a client in it. More often than you might think, I run into Pike bugs and have to fix them before I can move on. Fortunately it's an open source language!) height for width is a geometry management system which says to the widget: o What is your minimum width and what is your natural width ? o Oh... so you can fit into 40 pixels but you would prefer 80 ! o Ok I've decided that, taking into account all horizontal space, you will receive 60 pixels in width, how much height do you need for a width of 60 pixels ? o Ah, you want 20 height ? we're done here, you will receive 60 pixels in width and 20 pixels in height. This geometry management is more complex than just: what is your width height but allows dynamic content such as wrapping labels to unwrap and fit the window allocation, leaving more vertical space for other widgets above or below a wrapping label which might desire that space. Ah, gotcha. That makes a lot of sense, since there'll be a good few widgets that can wrap like that. GtkTextView had it's own way of doing height-for-width internally, insomuch that it would eventually ask for enough height to fit the wrapping text into whatever width you had given it. That's actually the exact behaviour I want here. The status bar will fill whatever width the window is sized to, and then I want it to claim as much or as little height as it needs. (The bulk of the window's height is taken up with a ScrolledWindow, so it makes little difference to the layout if there's another row of status.) GTK+3 has this geometry management built-in, but GTK+2 does not (so doing things like EggWrapBox with GTK+2 is more tricky). If you are stuck with GTK+2, I suggest you take a look into GtkToolPalette, you might be able to trick your statusbar items into being GtkToolItems and use the wrapping behaviour of GtkToolPalette to achieve the same effect (or at least use some prior art in there, I think you are stuck with the expanders if you use GtkToolPalette directly... GtkToolItemGroup would have the precise code you are looking for). Yeah, I looked into that, but wasn't able to make it do what I wanted. I'll give that another shot tomorrow; it might be better suited to what I'm trying to do (especially if it works properly on Windows and Mac). It's called GTK2.Toolbar in Pike, but I'm assuming that's the same thing as GtkToolPalette. ChrisA ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Using a TextView as a sort of Hbox with wrapping
On Mon, 2014-01-27 at 03:49 +1100, Chris Angelico wrote: On Mon, Jan 27, 2014 at 3:43 AM, James Tappin jtap...@gmail.com wrote: If I interpret what you are trying to do correctly (not necessarily a given), then I would have thought that GtkScrolledWindow (possibly in conjunction with GtkViewport) would be the tool for the job. Not scrolling, wrapping. The window might be large enough to hold all the statusbar entries (and I expect that it normally will be), but if it's not, I would prefer the more graceful degradation of doubling the height of the status bar and moving the excess to a new row rather than widening the window. Scrolling would force the user to consciously manipulate the status bar, which is contrary to its goal of being subtle and just there. Suddenly expanding to double its normal height isn't perfect either, but maybe someone will actually want it to be taller, who knows. I could use a Table, or a Vbox with multiple Hboxes in it, but then I'd need to decide in advance which elements drop to the next row. I want it to be automatic: if there's room, use one row, otherwise wrap to a second (and third, and fourth, if necessary, but I would hope that's never the case!). You can get the behavior you are looking for with EggWrapBox: https://git.gnome.org/browse/libegg/tree/libegg/wrapbox Just copy the eggwrapbox.[ch] and compile it as a part of your code (or compile a libegg separately and link to it if LGPL is a problem for you). EggWrapBox has been modified and added to GTK+ as GtkFlowBox, however the GTK+ version is lacking the primary feature that you want, i.e. children do not wrap freely but instead they are forced to appear in columns. Perhaps if you use the EggWrapBox and prove to the GTK+ team that the free-form wrapping is useful and important, we can get the free flowing behavior back into GtkFlowBox. FWIW I would certainly rather use the EggWrapBox widget for the purpose you describe rather than to repurpose a GtkTextView for that (the text view is much more complex for such a simple purpose as wrapping widgets - also the EggWrapBox handles height-for-width geometry well for it's children, while textview itself does some height-for-width, I'm not sure it is done well for embedded child widgets). Cheers, -Tristan ChrisA ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Using a TextView as a sort of Hbox with wrapping
On Tue, 2014-01-28 at 03:08 +1100, Chris Angelico wrote: On Tue, Jan 28, 2014 at 3:00 AM, Tristan Van Berkom tris...@upstairslabs.com wrote: Sorry I did not take into account that you were working with the GTK+2 library and not GTK+3. Ah, I should have mentioned, sorry. There has been talk of supporting GTK3 in Pike, but I won't move to it till I can confidently expect that my clients will have it. (It's kinda weird. I'm using a language that's more designed for servers - web servers, MUD servers, and so on - and writing a client in it. More often than you might think, I run into Pike bugs and have to fix them before I can move on. Fortunately it's an open source language!) height for width is a geometry management system which says to the widget: o What is your minimum width and what is your natural width ? o Oh... so you can fit into 40 pixels but you would prefer 80 ! o Ok I've decided that, taking into account all horizontal space, you will receive 60 pixels in width, how much height do you need for a width of 60 pixels ? o Ah, you want 20 height ? we're done here, you will receive 60 pixels in width and 20 pixels in height. This geometry management is more complex than just: what is your width height but allows dynamic content such as wrapping labels to unwrap and fit the window allocation, leaving more vertical space for other widgets above or below a wrapping label which might desire that space. Ah, gotcha. That makes a lot of sense, since there'll be a good few widgets that can wrap like that. GtkTextView had it's own way of doing height-for-width internally, insomuch that it would eventually ask for enough height to fit the wrapping text into whatever width you had given it. That's actually the exact behaviour I want here. The status bar will fill whatever width the window is sized to, and then I want it to claim as much or as little height as it needs. (The bulk of the window's height is taken up with a ScrolledWindow, so it makes little difference to the layout if there's another row of status.) GTK+3 has this geometry management built-in, but GTK+2 does not (so doing things like EggWrapBox with GTK+2 is more tricky). If you are stuck with GTK+2, I suggest you take a look into GtkToolPalette, you might be able to trick your statusbar items into being GtkToolItems and use the wrapping behaviour of GtkToolPalette to achieve the same effect (or at least use some prior art in there, I think you are stuck with the expanders if you use GtkToolPalette directly... GtkToolItemGroup would have the precise code you are looking for). Yeah, I looked into that, but wasn't able to make it do what I wanted. I'll give that another shot tomorrow; it might be better suited to what I'm trying to do (especially if it works properly on Windows and Mac). It's called GTK2.Toolbar in Pike, but I'm assuming that's the same thing as GtkToolPalette. No, GtkToolbar != GtkToolPalette, they are separate things. The GtkToolPalette is what we use in Glade to show all the widget icons for example - there is a demo of it if you run gtk-demo you should be able to see it in action, and I'm quite sure that it exists in one of the later versions of GTK+2 (it should really be there in 2.24). Cheers, -Tristan ChrisA ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Using a TextView as a sort of Hbox with wrapping
On Tue, Jan 28, 2014 at 3:19 AM, Tristan Van Berkom tris...@upstairslabs.com wrote: No, GtkToolbar != GtkToolPalette, they are separate things. The GtkToolPalette is what we use in Glade to show all the widget icons for example - there is a demo of it if you run gtk-demo you should be able to see it in action, and I'm quite sure that it exists in one of the later versions of GTK+2 (it should really be there in 2.24). Ah, okay. Looks like I don't have ToolPalette, so I can't depend on it. Just tried Toolbar again and its problem is that it doesn't wrap, it offers a hey, look, there's more button - so it's like scrolling again. Pity. :( ChrisA ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Using a TextView as a sort of Hbox with wrapping
Chris,
If I interpret what you are trying to do correctly (not necessarily a
given), then I would have thought that GtkScrolledWindow (possibly in
conjunction with GtkViewport) would be the tool for the job.
James
On 26 January 2014 14:50, Chris Angelico ros...@gmail.com wrote:
My application has a status bar which can have an arbitrary number of
items added to it. Currently, I use an Hbox with no padding, which
works fine as long as there aren't too many statusbar elements added;
but if there are a lot, the tail starts wagging the dog, in that the
size of the window becomes dictated by the status bar (which normally
is supposed to be subtle, not intrusive/controlling). So I figured
that wrapping elements onto another line of status bar would be a more
useful way to lay them out, but that's really tricky. Enter TextView:
it's a widget designed to handle wrapping, and it can have child
widgets embedded in it.
Here's some proof of concept code. (This is in Pike, so you may not be
able to run it directly.)
int main()
{
GTK2.setup_gtk();
object
buf=GTK2.TextBuffer(),view=GTK2.TextView(buf)-set_editable(0)-set_wrap_mode(GTK2.WRAP_WORD)-set_cursor_visible(0);
view-modify_base(GTK2.STATE_NORMAL,GTK2.GdkColor(240,240,240));
foreach (({Asdf asdf,Qwer qwer,Zxcv zxcv,Testing,
testing,1, 2, 3, 4}),string x)
{
view-add_child_at_anchor(GTK2.Frame()-add(GTK2.Label(x))-set_shadow_type(GTK2.SHADOW_ETCHED_OUT),
buf-create_child_anchor(buf-get_end_iter()));
buf-insert(buf-get_end_iter(), ,-1);
}
GTK2.Window(GTK2.WindowToplevel)-set_default_size(500,300)-add(GTK2.Vbox(0,0)
-add(GTK2.Label(Blah blah blah, this\nhas lots and\nlots of
content\n\nLorem ipsum dolor sit\namet))
-pack_start(GTK2.Button(This sets the base width),0,0,0)
-pack_start(view,0,0,0)
)-show_all()-signal_connect(delete-event,lambda() {exit(0);});
return -1;
}
Two questions.
Firstly: Is this a really REALLY stupid thing to do? When I Googled
for a wrapping layout manager, nothing mentioned this possibility, so
I'm wondering if this is somehow fundamentally bad and I just haven't
seen it.
And secondly: The TextArea defaults to having a white background, but
I want to use the window's default background. On my system, setting
the color to (240,240,240) does that, but that means I'm explicitly
setting a color, so it's going to be grey even if the UI theme
specifies that a window's background should be vibrant orange. Is
there a way to tell the TextView not to draw its background, or
alternatively, a way to query the default background color for a
window?
Thanks in advance!
ChrisA
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Re: Using a TextView as a sort of Hbox with wrapping
On Mon, Jan 27, 2014 at 3:43 AM, James Tappin jtap...@gmail.com wrote: If I interpret what you are trying to do correctly (not necessarily a given), then I would have thought that GtkScrolledWindow (possibly in conjunction with GtkViewport) would be the tool for the job. Not scrolling, wrapping. The window might be large enough to hold all the statusbar entries (and I expect that it normally will be), but if it's not, I would prefer the more graceful degradation of doubling the height of the status bar and moving the excess to a new row rather than widening the window. Scrolling would force the user to consciously manipulate the status bar, which is contrary to its goal of being subtle and just there. Suddenly expanding to double its normal height isn't perfect either, but maybe someone will actually want it to be taller, who knows. I could use a Table, or a Vbox with multiple Hboxes in it, but then I'd need to decide in advance which elements drop to the next row. I want it to be automatic: if there's room, use one row, otherwise wrap to a second (and third, and fourth, if necessary, but I would hope that's never the case!). ChrisA ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
