GTK TreeView change the column header color
I am trying to change the color of the column headers of a treeview,
with no sucess at all. I followed the way indicated in an old post in
Nov. 2003:
I tried:
for each column in the treeview:
when defining the column, set_widget (col, label)
now show the widget (i.e., the label).
Then show the treeview.
And now:
for each column in the treeview:
get_widget (col)
get_parent // the alignment
get_parent // the hbox
get_parent // the button
modify bg (button, state normal, some gdk color) // tried
also with modify base
Result: nothing, header columns blank
I also tried in the rc file (still using gtk 2.xx):
style TreeHeaderStyle
{
bg[NORMAL] = blue # tried also with base
}
widget_class *.GtkTreeView.GtkButton style : highest TreeHeaderStyle
Result: nothing, header columns still blank
The global gtkrc is the default one and my particular gtkrc is
# Auto-written by gtk2_prefs. Do not edit.
gtk-theme-name = Nimbus
style user-font
{
font_name=Sans 10
}
widget_class * style user-font
I change the theme to several others and no success.
I know that some years ago the same question was made, I followed the
recommendations given there. No success.
I would appreciate any help. Thanks.
Ah, in Win32.
I am attaching a small program derived from an example in the treeview
tutorial
- the program -
#include gtk/gtk.h
enum
{
COL_FIRST = 0,
NUM_COLS
} ;
static GtkTreeModel *create_and_fill_model (void)
{
GtkTreeStore *treestore;
GtkTreeItertoplevel;
treestore = gtk_tree_store_new(NUM_COLS, G_TYPE_STRING);
gtk_tree_store_append(treestore, toplevel, NULL);
gtk_tree_store_set(treestore, toplevel, COL_FIRST, some text, -1);
gtk_tree_store_append(treestore, toplevel, NULL);
gtk_tree_store_set(treestore, toplevel, COL_FIRST, more text, -1);
return GTK_TREE_MODEL(treestore);
}
void set_header (GtkTreeViewColumn *col, char *title)
{ GtkWidget *lab;
lab = gtk_label_new (title);
gtk_tree_view_column_set_widget (col, lab);
gtk_widget_show (lab);
}
void set_color (GtkWidget *w, GdkColor color)
{ /* none work */
gtk_widget_modify_bg (w, GTK_STATE_NORMAL, color);
gtk_widget_modify_base (w, GTK_STATE_NORMAL, color);
gtk_widget_modify_bg (w, GTK_STATE_ACTIVE, color);
gtk_widget_modify_base (w, GTK_STATE_ACTIVE, color);
gtk_widget_modify_bg (w, GTK_STATE_PRELIGHT,color);
gtk_widget_modify_base (w, GTK_STATE_PRELIGHT,color);
gtk_widget_modify_bg (w, GTK_STATE_PRELIGHT,color);
gtk_widget_modify_base (w, GTK_STATE_PRELIGHT,color);
gtk_widget_modify_bg (w, GTK_STATE_SELECTED,color);
gtk_widget_modify_base (w, GTK_STATE_SELECTED,color);
gtk_widget_modify_bg (w, GTK_STATE_INSENSITIVE, color);
gtk_widget_modify_base (w, GTK_STATE_INSENSITIVE, color);
}
void set_color_header (GtkTreeView *view)
{
GtkTreeViewColumn *col;
GtkWidget *w;
GdkColor color;
gboolean res;
res = gdk_color_parse (red, color);
if (res == 0) return;
col = gtk_tree_view_get_column (view, COL_FIRST);
w = gtk_tree_view_column_get_widget (col); /* the label */
/* set_color (w, color); NOK*/
w = gtk_widget_get_parent (w); /* the alignment */
/* set_color (w, color); NOK*/
w = gtk_widget_get_parent (w); /* the hbox */
/* set_color (w, color); NOK*/
w = gtk_widget_get_parent (w); /* the button */
set_color (w, color); /* NOK */
}
static GtkWidget *create_view_and_model (void)
{
GtkTreeViewColumn *col;
GtkCellRenderer *renderer;
GtkWidget *view;
GtkTreeModel*model;
view = gtk_tree_view_new();
col = gtk_tree_view_column_new();
set_header (col, First Column);
renderer = gtk_cell_renderer_text_new();
gtk_tree_view_column_pack_start(col, renderer, TRUE);
gtk_tree_view_column_add_attribute(col, renderer, text, COL_FIRST);
gtk_tree_view_append_column(GTK_TREE_VIEW(view), col);
/* set_color_header(GTK_TREE_VIEW(view)); NOK */
model = create_and_fill_model();
gtk_tree_view_set_model(GTK_TREE_VIEW(view), model);
g_object_unref(model);
return view;
}
int main (int argc, char **argv)
{
GtkWidget *window;
GtkWidget *view;
gtk_init(argc, argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(window), 300, 200);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
g_signal_connect(window, delete_event, gtk_main_quit, NULL); /*
dirty */
view = create_view_and_model();
/* set_color_header(GTK_TREE_VIEW(view)); NOK */
gtk_container_add(GTK_CONTAINER(window), view);
gtk_widget_show_all(window);
set_color_header(GTK_TREE_VIEW(view)); /* NOK */
gtk_main();
return 0;
}
the Makefile ---
CC = gcc
CFLAGS = -g -O0 `pkg-config --cflags gtk+-2.0`
all: treeview-demo
treeview-demo: main.o
Gtk TreeView emits a beep
Hello,
I'm programming a tool using Vala langage. I need to manipulate a
treeview, delete an item for example.
I'm trapped the release key event but for certain keys, treeview emits a
beep (left or right arrow, del keys).
How can I remove this beep ?
CODE sample.vala
public class Application : Gtk.Window {
public Application () {
// Prepare Gtk.Window:
this.title = My Gtk.TreeView;
this.window_position = Gtk.WindowPosition.CENTER;
this.destroy.connect (Gtk.main_quit);
this.set_default_size (350, 70);
// The Model:
Gtk.ListStore list_store = new Gtk.ListStore (2, typeof
(string));
Gtk.TreeIter iter;
list_store.append (out iter);
list_store.set (iter, 0, Burgenland);
list_store.append (out iter);
list_store.set (iter, 0, Carinthia);
list_store.append (out iter);
list_store.set (iter, 0, Lower Austria);
list_store.append (out iter);
list_store.set (iter, 0, Upper Austria);
// The View:
Gtk.TreeView view = new Gtk.TreeView.with_model (list_store);
this.add (view);
Gtk.CellRendererText cell = new Gtk.CellRendererText ();
view.insert_column_with_attributes (-1, State, cell, text,
0);
view.add_events(Gdk.EventMask.KEY_RELEASE_MASK);
view.key_release_event.connect(on_key_press);
}
public bool on_key_press (Gdk.EventKey event) {
stdout.printf (keyval: %lu hk: %lu\n, event.keyval,
event.hardware_keycode);
return true;
}
public static int main (string[] args) {
Gtk.init (ref args);
Application app = new Application ();
app.show_all ();
Gtk.main ();
return 0;
}
}
### Compilation ##
$ valac --pkg gtk+-3.0 sample.vala
Thanks
Regards
Raum
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GTK+ TreeView: Different CellRenderers on the same Column
I am working on a configuration file editor for an graphical application. Configuration consists of strings, numbers and boolean values. About 25 values total. I can use individual widgets for each property, but for larger quantities a listview is a more compact form. It would we nice to have textentry fields for strings, spin buttons for numbers and check boxes for boolean values, all in one column of the tree view. Of course I can pop up dialog windows whenever the user clicks on an row of the treeview, but that is not a nice solution when the user wants to change more than one value. With Google, I found some people asking for this, but only one complicated solution: http://kapo-cpp.blogspot.com/2008/05/different-cellrenderers-on-same-column.html I think it is too complicated for me now, not being an GTK expert. (And I am using the Ruby GTK bindings, which may make it difficult to use the above solution.) Is there a better solution or even an example available? Best Regards, Stefan Salewski ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GTK+ TreeView: Different CellRenderers on the same Column
Le 17/10/2011 13:53, Stefan Salewski a écrit : I am working on a configuration file editor for an graphical application. Configuration consists of strings, numbers and boolean values. About 25 values total. I can use individual widgets for each property, but for larger quantities a listview is a more compact form. It would we nice to have textentry fields for strings, spin buttons for numbers and check boxes for boolean values, all in one column of the tree view. Of course I can pop up dialog windows whenever the user clicks on an row of the treeview, but that is not a nice solution when the user wants to change more than one value. With Google, I found some people asking for this, but only one complicated solution: http://kapo-cpp.blogspot.com/2008/05/different-cellrenderers-on-same-column.html I think it is too complicated for me now, not being an GTK expert. (And I am using the Ruby GTK bindings, which may make it difficult to use the above solution.) Is there a better solution or even an example available? Not sure it's better (actually I just took a small glance at the link), but there are other solutions. First, the one used by gconf-editor [1], that consist of a custom cell renderer that provides the appropriate editable depending on the type of the value it holds. This is not necessarily the easier way, but it's quite interesting IMHO. The other solution I know is to pack all CellRenderer that might be used for editing, and only make one visible/sensitive, depending on the row's value type. This is what we current use in the implementation of Geany's stash editor [2], [3]. IMHO the second solution is the easier one, nut sure it's the bast though. Hope it helps. Regards, Colomban [1] http://git.gnome.org/browse/gconf-editor/tree/src/gconf-cell-renderer.c [2] https://github.com/geany/geany/blob/master/src/stash.c#L910 [3] https://github.com/geany/geany/blob/master/src/stash.c#L1051 ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GTK+ TreeView: Different CellRenderers on the same Column
On Mon, 2011-10-17 at 15:11 +0200, Colomban Wendling wrote: [...] The other solution I know is to pack all CellRenderer that might be used for editing, and only make one visible/sensitive, depending on the row's value type. This is what we current use in the implementation of Geany's stash editor [2], [3]. Thanks, that sound very promising and not too difficult. I was aware that I can pack multiple renderer in the same tree view column, but I was not aware that I can hide them totally using a cell_data_func. Best regards, Stefan Salewski ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: gtk treeview windows
Oh, sorry. I assume you have verified that you don't have any heap corruption by running the code under valgrind on Linux? Other than that I really can't give any specific advice. Perhaps ask somebody else to read the code carefully. If the problem did not occur at some earlier stage, then you could do a binary search through your version history to find the exact changes that made the problems occur. But if the problem happens very randomly and rarely, of course that is going to be tedious, as you can never be sure if one version really is clean, or if the problem just happens not to occur when you test that version. --tml I still think maybe we're missing each other here. The problem has never occurred on linux, and the software has run there for several years, so heap corruption seems unlikely. The problem occurs only on Windows, and only with the libwimp theme engine. We don't have any previous versions that worked correctly as this is our first porting attempt. What I have done: Added debugging message code to the test-collapse-row and test-expand-row signals. As expected these fire correctly when the treeview is working properly, but they do not fire when the treeview is locked up. However, using the arrow keys to navigate the treeview, these signals fire correctly. We are also connected to the button-release-event for the treeview. This only fires when clicking on the row, not the button (little plus symbol) that would expand or collapse the treeview row. What I would like to know is if there is a signal, or some way I can detect whether the button is receiving the mouse click, but not expanding for some reason, or where exactly the problem is occurring. Matthew ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: gtk treeview windows
On Sat, 2009-02-07 at 14:25 -0500, Matthew Talbert wrote: Oh, sorry. I assume you have verified that you don't have any heap corruption by running the code under valgrind on Linux? Other than that I really can't give any specific advice. Perhaps ask somebody else to read the code carefully. If the problem did not occur at some earlier stage, then you could do a binary search through your version history to find the exact changes that made the problems occur. But if the problem happens very randomly and rarely, of course that is going to be tedious, as you can never be sure if one version really is clean, or if the problem just happens not to occur when you test that version. --tml I still think maybe we're missing each other here. The problem has never occurred on linux, and the software has run there for several years, so heap corruption seems unlikely. The problem occurs only on Windows, and only with the libwimp theme engine. We don't have any previous versions that worked correctly as this is our first porting attempt. It still may be worth your time to run it through valgrind on linux. Just because it works fine doesn't mean your program has no memory usage bugs. If it does, changing platforms is exactly the kind of thing that would make such an error present itself. -Larry la...@yrral.net ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: gtk treeview windows
Not trying to be offensive, but if I could reproduce this every time, I wouldn't be asking for debugging suggestions. Oh, sorry. I assume you have verified that you don't have any heap corruption by running the code under valgrind on Linux? Other than that I really can't give any specific advice. Perhaps ask somebody else to read the code carefully. If the problem did not occur at some earlier stage, then you could do a binary search through your version history to find the exact changes that made the problems occur. But if the problem happens very randomly and rarely, of course that is going to be tedious, as you can never be sure if one version really is clean, or if the problem just happens not to occur when you test that version. --tml ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
gtk treeview windows
Hi all, I am a developer for Xiphos (previously GnomeSword) and I'm heavily involved in our Windows port effort. Most things have gone smoothly, but one issue really has me stumped. Occasionally all of the treeviews in the application will freeze. By this I mean that they will not expand or collapse with mouse clicks. They will, however, expand and collapse with the keyboard (arrows, enter, etc). Additionally, the items themselves respond to mouse clicks. Very rarely, they will be frozen on startup, but typically it happens after clicking around on other buttons for a little bit. We are using the Windows theme for this. I have never been able to replicate it with the default gtk theme. I would appreciate any suggestions as to how to debug this further. Thanks, Matthew ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: gtk treeview windows
I would appreciate any suggestions as to how to debug this further. Write a minimal sample program that exhibits the problem, file a bug, and attach the sample program (as a single source file in C; no binaries, not zip archives, no makefiles) to the bug. -tml ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Can I make a not aligned gtk treeview?
17 dec 2007 kl. 08.29 skrev Binary Chen: Hi, A TreeView will always align the columns. However, to achieve the behavior you look for you can pack two cell renderers into the same column. Cheers, Mikael Hallendal Hi, I have a gtktreeview with two column, the first one is pixbuf, the second one is a string. something happen bad if in a row the first pixbuf is NULL, so it doesn't occupy any place, but in the following row there is a pixbuf and occupy some place. the default behavior of gtktreeview will align the second column so leave a large blank in first row. How can I tell treeview not align in different row, but just place the column independently? Thanks. Bin ___ 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
Can I make a not aligned gtk treeview?
Hi, I have a gtktreeview with two column, the first one is pixbuf, the second one is a string. something happen bad if in a row the first pixbuf is NULL, so it doesn't occupy any place, but in the following row there is a pixbuf and occupy some place. the default behavior of gtktreeview will align the second column so leave a large blank in first row. How can I tell treeview not align in different row, but just place the column independently? Thanks. Bin ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
GTK treeview very slow?
Hi, I am running GTK treeview in a slow machine, say, with a 200MHz CPU, I am using a treeview with about 20 nodes as total. When I scroll the treeview scroll bar, the image get to freeze for a while... I then try with a simpler table with 1 column, the speed is quite fast, I can aware the freeze when scrolling. I want to confirm is my conclution is right? The treeview is significantly slower then other container? Thanks. Bin ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: [Gtk#] TreeView.
Am Dienstag, den 20.09.2005, 20:05 +0200 schrieb Nicolas Cormier:
I have a Treeview and I want to active the EnterNotifyEvent when a the
user's cursor is on a row.
I active the EnterNotifyEvent for the treeview but it works only for
the entire of the widget.
See [1] for a patch against Nautilus which does what you want.
The interesting thing you have to grasp is
a) you only have motion notify events inside a tree view widget
b) you'll have to check what path is active on each motion event
c) the algorithm you can use to detect changes to the hover path, inside
the motion notification handler, where the GdkEventMotion is event, is:
GtkTreePath *hover_path;
GtkTreePath *last_hover_path;
/* last_hover_path = foo-stored_path; fetch last hover path */
gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget),
event-x, event-y,
hover_path,
NULL, NULL, NULL);
/* foo-stored_path = hover_path; write back new hover path */
if (!(last_hover_path == NULL hover_path == NULL)
(!(last_hover_path != NULL hover_path != NULL) ||
gtk_tree_path_compare (last_hover_path, hover_path) != NULL)) {
/* do whatever you want with the new hover path */
}
[1] http://bugzilla.gnome.org/attachment.cgi?id=49082action=view
--
Christian Neumair [EMAIL PROTECTED]
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Re: [Gtk#] TreeView.
On 9/22/05, Christian Neumair [EMAIL PROTECTED] wrote:
Am Dienstag, den 20.09.2005, 20:05 +0200 schrieb Nicolas Cormier:
I have a Treeview and I want to active the EnterNotifyEvent when a the
user's cursor is on a row.
I active the EnterNotifyEvent for the treeview but it works only for
the entire of the widget.
See [1] for a patch against Nautilus which does what you want.
The interesting thing you have to grasp is
a) you only have motion notify events inside a tree view widget
b) you'll have to check what path is active on each motion event
c) the algorithm you can use to detect changes to the hover path, inside
the motion notification handler, where the GdkEventMotion is event, is:
GtkTreePath *hover_path;
GtkTreePath *last_hover_path;
/* last_hover_path = foo-stored_path; fetch last hover path */
gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget),
event-x, event-y,
hover_path,
NULL, NULL, NULL);
/* foo-stored_path = hover_path; write back new hover path */
if (!(last_hover_path == NULL hover_path == NULL)
(!(last_hover_path != NULL hover_path != NULL) ||
gtk_tree_path_compare (last_hover_path, hover_path) != NULL)) {
/* do whatever you want with the new hover path */
}
[1] http://bugzilla.gnome.org/attachment.cgi?id=49082action=view
--
Christian Neumair [EMAIL PROTECTED]
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Thanks a lot for your answer.
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Gtk# - Treeview
Hi, I have a Treeview and I want to active the EnterNotifyEvent when a the user's cursor is on a row. I active the EnterNotifyEvent for the treeview but it works only for the entire of the widget. Thanks in advance for your help. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Gtk treeview use with large data sources
I have been searching for some time now to figure out how to approach using gtk treeview ( with a list model) with a sql database. I am using odbc on multiple platforms , hence gnomedb is not appropriate. Ideally the scrollwindow will behave as per using the standard list model. My questions: (1) should I write a custom list model that I can connect an odbc dsn query to the treeview (2) should I disect gnome-db to find out the professionals approach it (3) should I give up and page the resultset into pages of 500 row that can be scrolled easily without Appreciate any sensible ideas Thanks Kim ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
