Re: how to draw something on GtkDrawingArea when I click a button?
gdk_draw_line takes GdkDrawable as first parameter.
try using drawing_area-window instead.
--
Regards,
Amol
On Fri, 2010-03-19 at 13:34 +0800, Tolic Ma wrote:
Hi,everyone!
I want to draw something on GtkDrawingArea when I click a GtkButton,but I
don't know how to do this...
this is my code(it doesn't work...):
*void click_button(void){
gdk_draw_line(drawing_area,drawing_area-style-white_gc,x,y,width+x,height+y);
}
int main(int argc,char *argv[]){
...
g_signal_connect(button,clicked,G_CALLBACK(click_button),NULL);
...
}*
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GtkTreeView in VBox
Hi All, Is it possible to add GtkTreeView inside VBox and then add that VBox to ScrolledWindow using gtk_scrolled_window_add_with_viewport(sw,vbox). GtkTreeView has inbuilt scrolling support hence it is expected to add it directely to scrolledwindow using gtk_container_add but in some weird case i want to pack treeview in vbox which will eventually be placed in scrolledwindow. It works fine for most of the cases but if i am having long list of elements packed inside it then it behaves very randomly when my scrolledwindow adjustment value is between some range [17000 - 27000] it again works fine once adjustment moves beyond that. Since i am not adding treeview directely to scrolledwindow treeview adjustments and scrolledwindow adjustments may not be in sync but if i manually set treeview adjustments then i get double scrolling [scrolled window + treeview] which i don't want. Is this expected/supported use case or am i doing something wrong here? Thanks for your time. -- Thanks and Regards, Amol ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
GtkIconView Pixbuf rendering
Hi All, In newer versions of Gtk+[After GIcon addition] user is not able to add mixed images in IconView that is file path plus named icons. User will prefer named icons over file path to have consistent look and feel but all required icons may not be available in icon theme so he may need to use mix of these in some cases. Are such scenarios discouraged or is their any workaround available? thanks for your time. -- Regrads, Amol ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
GtkIconView Pixbuf rendering
Hi All, In newer versions of Gtk+[After GIcon addition] user is not able to add mixed images in IconView that is file path plus named icons. User will prefer named icons over file path to have consistent look and feel but all required icons may not be available in icon theme so he may need to use mix of these in some cases. Are such scenarios discouraged or is their any workaround available? thanks for your time. -- Regrads, Amol ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: GtkIconView Pixbuf rendering
Hi Christian, I will attach a testcase. please find my reply inline for your overview On Tue, 2009-10-06 at 13:33 +0200, Christian Dywan wrote: Am Tue, 06 Oct 2009 16:13:00 +0530 schrieb Amol Kulkarni amolgkulka...@gmail.com: Hi All, In newer versions of Gtk+[After GIcon addition] user is not able to add mixed images in IconView that is file path plus named icons. User will prefer named icons over file path to have consistent look and feel but all required icons may not be available in icon theme so he may need to use mix of these in some cases. Are such scenarios discouraged or is their any workaround available? thanks for your time. Hey Amol, can you be more specific about what you are trying to do? How are you loading pixbufs into the model? Are you manipulating cell renderers? If you have a small code example that worked in older GTK+ releases but not with 2.18 that would be great. I have two columns in model one of STRING type and one of PIXBUF type. i set icon-name to use data from STRING type column and pixbuf to use data from PIXBUF column of model through gtk_cell_layout_set_attributes. e.g gtk_cell_layout_set_attributes (icon_view,cell,icon-name,0,pixbuf,1,NULL); where 0 = STRING type column 1 = PIXBUF type column if i have icon present in icon theme i set icon-name for corresponding item if not then i set pixbuf from some filepath. But in this case it will display only named icons[since attribute list is reversed it will first set pixbuf property of renderer and then it will set icon-name which will override previously set pixbuf]. It used to work in 2.12.9 but not in 2.14.3 onwards Thanks. Amol ciao, Christian ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Can I set background image for GtkTextView
Try setting background to textwindow of GtkTextView. you can get text_window through gtk_text_view_get_window (textview,window_type); I don't remember exact syntax though. Regards, Amol On Tue, 2009-06-30 at 15:54 +0800, winsty wrote: Hi, All I want to set a background image for GtkTextView in my program, but i don't know how to do it. And i also can't find something useful about this question, that's why I'm sending it here. Best Regards winsty ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Height of text row in TreeView
On Tue, 2008-04-22 at 23:14 +, BJörn Lindqvist wrote: 2008/4/22 amol [EMAIL PROTECTED]: Hi I have a TreeView with two columns one pixbuf and one text. when i have large text in text column the height of text column never increase beyond height of pixbuf. This works for me and I can not reproduce it. i am attaching a test case and screenshots to reproduce above scenario. if i set wrap-width before displaying treeview then it works as expected and text column height is set accordingly. But if i set wrap-width in some timer callback then text gets wrapped but text column height is not changed. I have attached screenshots for above two cases. case 1: (image 1) wrap-width is set before doing show.Works as expected.text is wrapped and height is adjusted accordingly. case 2: (image 2 and image 3) initially image 2 is displayed as no wrap-width is set but when wrap-width is set say after 5 sec then image 3 is displayed.text gets wrapped but height is not adjusted accordingly and we can't see more than two lines. If there is no pixbuf rendered height never increases beyond one line. What does this mean? GtkTreeView doesn't word wrap your text unless you tell it to. Is this issue with GtkCellRendererText? It is impossible to say. Please provide minimal example code that demonstrates your problems. Also see bugzilla.gnome.org which is the standard place for bug reports. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Height of text row in TreeView
Hi I have a TreeView with two columns one pixbuf and one text. when i have large text in text column the height of text column never increase beyond height of pixbuf. If there is no pixbuf rendered height never increases beyond one line. Is this issue with GtkCellRendererText? Is there any simple way to achieve this so that we get correct cell height. Thanx for your time. Regards, Amol. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
GtkListStore with GtkBuilder
sorry for second mail since first one was from non member mail id Hi, I have a Liststore with two columns first is a Pixbuf and second is a string column. When i want to populate this Liststore through ui i always need to specify both fields. but for some row if i don't want to show Pixbuf i can't do it. I always need to specify both columns. If i specify wrong filename or NULL Gtk will show GTK_STOCK_MISSING_IMAGE. And if i does not Pixbuf column then GtkListstore tries to set the string part (second col) as pixbuf in first column. When i looked in GtkListStore code I think their is mismatch in column type and passed GValue which is to filled by calling gtk_builder_value_from_string_type. I am attaching a patch (with correct index) for above case.It works fine in my case but needs to verify it with other scenarios. Can't we miss any column(any one of many) which is not needed for that particular row. Regards, Amol Index: gtkliststore.c === --- gtkliststore.c (revision 16714) +++ gtkliststore.c (working copy) @@ -2197,7 +2197,7 @@ string = g_strndup (text, text_len); if (!gtk_builder_value_from_string_type (data-builder, - data-column_types[i], + data-column_types[data-columns[i]], string, data-values[i], tmp_error)) ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Height of text row in TreeView
Hi I have a TreeView with two columns one pixbuf and one text. when i have large text in text column the height of text column never increase beyond height of pixbuf. If there is no pixbuf rendered height never increases beyond one line. Is this issue with GtkCellRendererText? Is there any simple way to achieve this so that we get correct cell height. Thanx for your time. Regards, Amol. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: recurrent spam from applications developers [was: GtkListStore with GtkBuilder]
On Tue, 2008-04-22 at 12:43 +0200, Guillaume Cottenceau wrote: How about renaming gtk-devel-list into gtk-core-library-devel or something like that? Also, on http://gtk.org/mailing-lists.html: This list is for developers of GTK+ to discuss code. General GTK+ questions should not be asked on this list, as that is more appropriate for gtk-app-devel-list. = This list is for developers of the bcore/b GTK+ library to discuss GTK+ implementation. GTK+ applications development, and general GTK+ questions, should bnot/b be asked on this list, as that is more appropriate for gtk-app-devel-list. I suppose this is not General GTK+ question. this is probably bug in Gtk+ code and this list seems to be more appropriate one to discuss it. Please go through it before making it spam. -- Forwarded message -- From: amol [EMAIL PROTECTED] Date: 2008/4/22 Subject: GtkListStore with GtkBuilder To: gtk-devel-list@gnome.org sorry for second mail since first one was from non member mail id Hi, I have a Liststore with two columns first is a Pixbuf and second is a string column. When i want to populate this Liststore through ui i always need to specify both fields. but for some row if i don't want to show Pixbuf i can't do it. I always need to specify both columns. If i specify wrong filename or NULL Gtk will show GTK_STOCK_MISSING_IMAGE. And if i does not Pixbuf column then GtkListstore tries to set the string part (second col) as pixbuf in first column. When i looked in GtkListStore code I think their is mismatch in column type and passed GValue which is to filled by calling gtk_builder_value_from_string_type. I am attaching a patch (with correct index) for above case.It works fine in my case but needs to verify it with other scenarios. Can't we miss any column(any one of many) which is not needed for that particular row. Regards, Amol ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Height of text row in TreeView
Hi I have a TreeView with two columns one pixbuf and one text. when i have large text in text column the height of text column never increase beyond height of pixbuf. If there is no pixbuf rendered height never increases beyond one line. Is this issue with GtkCellRendererText? Is there any simple way to achieve this so that we get correct cell height. Thanx for your time. Regards, Amol. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Height of text row in TreeView
Hi I have a TreeView with two columns one pixbuf and one text. when i have large text in text column the height of text column never increase beyond height of pixbuf. If there is no pixbuf rendered height never increases beyond one line. Is this issue with GtkCellRendererText? Is there any simple way to achieve this so that we get correct cell height. Thanx for your time. Regards, Amol. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: How to get the preedit character from TextView?
Hi Try this gtk_im_context_get_preedit_string (GTK_TEXT_VIEW (text_view)-im_context, preedit_string, NULL, cursor_pos); . do what u want with preedit string . gtk_im_context_reset (GTK_TEXT_VIEW (text_view)-im_context); Regards, Amol On Fri, 2008-03-28 at 12:33 +0900, KwangYul Seo wrote: Hi, I can get the text string from TextView, but I can't get the last character in preedit mode before it commits. Is it possible to get the character in preedit mode from TextView? Thanks, Kwang Yul Seo ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
buildable_set_name
Hi, When we do gtk_buildable_set/get_name for any object created through GtkBuilder, GtkBuildable does g_object_set/get_data to return the corresponding name of object if its set/get_name are not overridden. But GtkWidget overrides set/get_name of buildable interface and does gtk_widget_set/get_name. I may create GtkWidget through GtkBuilder and after that i may set widget name accordingly (to use different styles in different cases). But when i do gtk_buildable_get_name it returns me new name which was set through widget_set_name and not through buildable_set_name. No one except GtkAction and GtkActionGroup seems to be using buildable set/get_name. My doubt is - What is the intention for GtkWidget to override set/get functions of GtkBuildable interface. Can we get rid of it w/o affecting any Gtk applications. Gtk+ don't have any idea about the custom Id's specified in ui file while object creation. What is achieved doing by gtk_widget_set_name with Id specified in ui file.(gtkrc and ui Creator must be always in sync for themes to be work correctly ) I am planning to get rid of overriding set/get_name of buildable in GtkWidget. Does it will have any adverse effect? Regards, Amol. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
buildable_set_name
Hi, When we do gtk_buildable_set/get_name for any object created through GtkBuilder, GtkBuildable does g_object_set/get_data to return the corresponding name of object if its set/get_name are not overridden. But GtkWidget overrides set/get_name of buildable interface and does gtk_widget_set/get_name. I may create GtkWidget through GtkBuilder and after that i may set widget name accordingly (to use different styles in different cases). But when i do gtk_buildable_get_name it returns me new name which was set through widget_set_name and not through buildable_set_name. No one except GtkAction and GtkActionGroup seems to be using buildable set/get_name. My doubt is - What is the intention for GtkWidget to override set/get functions of GtkBuildable interface. Can we get rid of it w/o affecting any Gtk applications. Gtk+ don't have any idea about the custom Id's specified in ui file while object creation. What is achieved doing by gtk_widget_set_name with Id specified in ui file.(gtkrc and ui Creator must be always in sync for themes to be work correctly ) I am planning to get rid of overriding set/get_name of buildable in GtkWidget. Does it will have any adverse effect? Regards, Amol. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Reparsing with GtkBuilder
Hi If i used gtk_builder_add_from_string to parse some string for builder which already has some content then application terminates with following message Gtk-ERROR **: file gtkbuilder.c: line 567 (apply_delayed_properties): assertion failed: (object != NULL) if builder had already set some delayed property. If builder had not set any delayed property previously then it does not crashes while reparsing with add_string. Is this bug in Gtk+? Delayed properties are applied in parser finished. If we parse any buffer again with same builder then it tries to set the delayed properties again which are irrelevant. setting builder-delayed_properties to NULL in parser_finished solves above problem but is this a right solution or it has any other side effects? If new buffer has any delayed properties associated with objects then builder-delayed_properties will set again and that properties will be applied in parser_finished. Regards Amol ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Custom cel renderer
Hi All, I am trying to write custom cell renderer which should be able to display GtkWidgets. But I am not able to get GdkWindow of widget to be displayed since it not displayed or added to any container(not realized yet). I am creating one widget say GtkButton and wanted it to be displayed on cellrenderer. What i am trying is to implement 'cell_class-render' and in it try to draw this widget on parent GdkWindow through gdk_draw_drawable() but i am not able to get GdkDrawable (GdkWindow) of widget(i.e of button) to draw it on destination GdkWindow. Is there any way to draw this widget on parent GdkWindow or is there any other way to display widgets with cellrenderer? Are there any guidelines to write custom cellrenderer which will display any GtkWidget? Thanks in advance. Regards, Amol ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: List view: Howto get the number of displayed rows?
Hi I am not sure whether this is right/optimized solution. 1. gtk_list_store_insert_before (GtkListStore *list_store, GtkTreeIter *iter, GtkTreeIter *sibling); with sibling = NULL. 2. gchar* gtk_tree_model_get_string_from_iter (GtkTreeModel *tree_model, GtkTreeIter *iter); if your list has 10 rows then 10 will be returned. 3. gtk_list_store_remove (GtkListStore *list_store,GtkTreeIter *iter); Regards, Amol. On Wed, 2007-06-20 at 10:47 +0200, Felipe wrote: Hi, Perhaps a stupid question, but I searched unsuccessfully in the documentation of GtkListStore and GtkTreeModel about the number of rows that are currently displayed in a list view. Now I need to know if exists a function for this or should I use gtk_tree_model_foreach() to count the number of rows manually? Thanks in advance, Felipe ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
How to detect the presence of scrollbar on scrolled window.
Does anyone know how to find out whether a vertical scrollbar is present
on scolled window or not.
I need to detect its presence at runtime.
below is the code which i tried to find out.but it is not working as
expected.
line 3 is always returning false.irrespective of vscrollbar presence.
1. scrolled_window = (GtkScrolledWindow *) gtk_scrolled_window_new
(NULL, NULL);
2. gtk_scrolled_window_set_policy (scrolled_window, GTK_POLICY_NEVER,
GTK_POLICY_AUTOMATIC);
3. if (scrolled_window-vscrollbar_visible) {
4. GtkWidget *widget = gtk_scrolled_window_get_vscrollbar
(scrolled_window);
5. width = widget-requisition.width;
6. }
Thanks and Regards,
Amol.
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