Re: Force liststore to update when leaving treeview
On 02/12/2019 11:32 AM, Mike Martin via gtk-app-devel-list wrote: Is this possible? Yes. I did this a while back, but would need to find an archive to provide you with exact code. I have a (for example) a grid which contains Various action widgets And a Treeview based on a liststore Is there any way to make sure that the changes made to a cell in the liststore are "committed" if I click on one of the other widgets I cant find anything to do this and if I leave the cell without pressing enter or clicking on another cell, all changes are lost Connect to the GtkCellRenderer "editing-started" signal. In that callback, you will have an GtkEntry (GtkCellEditable) object. Connect to the Entry's "changed" signal and keep a permanent string around with the text the user is typing. Also preserve the path and column being edited (obtained with "editing-started"). Also connect to GtkCellRenderer "editing-canceled" signal. In this callback, use the path, column, and text you retained from "editing-started", and update the ListStore. thanks Mike ___ 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: Scrolling to a line in GtkTextView
On 02/12/2019 12:47 PM, Mitko Haralanov via gtk-app-devel-list wrote:
Hi,
In my application, I would like to have a GtkTextView be scrolled to a
particular line after the GtkTextBuffer is loaded.
This was already discussed
https://stackoverflow.com/questions/48934458/gtk-sourceview-scroll-to-mark-not-working.
Basically, the GUI calculations are not done and the lines aren't
calculated, therefore you need to scroll after the GUI rendering is
finished. Use idle_add or timeout_add.
According to the documentation, I can use gtk_text_view_scroll_to_mark() in
order to reliably scroll to the desired line after the line height
computation has been completed. In practice that doesn't work reliably.
Below is the code snippet that I am using:
while (delay++ < 100)
g_main_context_iteration(NULL, FALSE);
debug("Scrolling to line: %lu", lineno);
gtk_text_buffer_get_iter_at_line(GTK_TEXT_BUFFER(priv->sourceBuf),
, (gint)(lineno - 1));
debug("Line: %d, offset: %d", gtk_text_iter_get_line(),
gtk_text_iter_get_offset());
gtk_text_buffer_place_cursor(GTK_TEXT_BUFFER(priv->sourceBuf), );
mark = gtk_text_buffer_get_mark(GTK_TEXT_BUFFER(priv->sourceBuf),
"result-view-search");
gtk_text_buffer_move_mark(GTK_TEXT_BUFFER(priv->sourceBuf), mark,
);
gtk_text_view_scroll_to_mark(GTK_TEXT_VIEW(priv->sourceView), mark, 0.0,
TRUE, 0.0, 0.5);
What I am noticing is that the reliability of this highly depends on the
line number to which I want to scroll and the length of the busy loop in
the beginning - the higher the line number, the longer the busy loop needs
to be in order to reliably scroll to that line.
If the busy loop is not long enough, the text view does scroll but not the
correct line.
What is the proper way to correctly and reliably scroll a GtkTextView to a
certain line?
Thank you,
Mitko
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Re: Force liststore to update when leaving treeview
On 02/12/2019 12:25 PM, Mitko Haralanov via gtk-app-devel-list wrote: One idea is to hook the widget to the "leave-notify-event", which will be triggered when the mouse leaves the widget. Have you used this with a GtkTreeView? I mean, actually implemented what Mike Martin is requesting? On Tue, Feb 12, 2019 at 8:32 AM Mike Martin via gtk-app-devel-list wrote: Is this possible? I have a (for example) a grid which contains Various action widgets And a Treeview based on a liststore Is there any way to make sure that the changes made to a cell in the liststore are "committed" if I click on one of the other widgets I cant find anything to do this and if I leave the cell without pressing enter or clicking on another cell, all changes are lost thanks Mike ___ 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 ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Scrolling to a line in GtkTextView
Hi,
In my application, I would like to have a GtkTextView be scrolled to a
particular line after the GtkTextBuffer is loaded.
According to the documentation, I can use gtk_text_view_scroll_to_mark() in
order to reliably scroll to the desired line after the line height
computation has been completed. In practice that doesn't work reliably.
Below is the code snippet that I am using:
while (delay++ < 100)
g_main_context_iteration(NULL, FALSE);
debug("Scrolling to line: %lu", lineno);
gtk_text_buffer_get_iter_at_line(GTK_TEXT_BUFFER(priv->sourceBuf),
, (gint)(lineno - 1));
debug("Line: %d, offset: %d", gtk_text_iter_get_line(),
gtk_text_iter_get_offset());
gtk_text_buffer_place_cursor(GTK_TEXT_BUFFER(priv->sourceBuf), );
mark = gtk_text_buffer_get_mark(GTK_TEXT_BUFFER(priv->sourceBuf),
"result-view-search");
gtk_text_buffer_move_mark(GTK_TEXT_BUFFER(priv->sourceBuf), mark,
);
gtk_text_view_scroll_to_mark(GTK_TEXT_VIEW(priv->sourceView), mark, 0.0,
TRUE, 0.0, 0.5);
What I am noticing is that the reliability of this highly depends on the
line number to which I want to scroll and the length of the busy loop in
the beginning - the higher the line number, the longer the busy loop needs
to be in order to reliably scroll to that line.
If the busy loop is not long enough, the text view does scroll but not the
correct line.
What is the proper way to correctly and reliably scroll a GtkTextView to a
certain line?
Thank you,
Mitko
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gtk-app-devel-list@gnome.org
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Re: Force liststore to update when leaving treeview
One idea is to hook the widget to the "leave-notify-event", which will be triggered when the mouse leaves the widget. On Tue, Feb 12, 2019 at 8:32 AM Mike Martin via gtk-app-devel-list wrote: > > Is this possible? > > I have a (for example) a grid which contains > Various action widgets > And a Treeview based on a liststore > > Is there any way to make sure that the changes made to a cell in the > liststore are "committed" if I click on one of the other widgets > > I cant find anything to do this and if I leave the cell without pressing > enter or clicking on another cell, all changes are lost > > thanks > > Mike > ___ > 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
Force liststore to update when leaving treeview
Is this possible? I have a (for example) a grid which contains Various action widgets And a Treeview based on a liststore Is there any way to make sure that the changes made to a cell in the liststore are "committed" if I click on one of the other widgets I cant find anything to do this and if I leave the cell without pressing enter or clicking on another cell, all changes are lost thanks Mike ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
