RE: Question regarding the dependency of GDK on other libraries
The first one can be considered as core dependencies for GTK/GDK. Second list is more like add-ons like compositing manager etc for Alpha/blending. Regards Siddharth -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Ruchi Lohani Sent: Wednesday, August 20, 2008 4:46 AM To: gtk-app-devel-list@gnome.org Subject: Question regarding the dependency of GDK on other libraries Hi, My application uses GTK and GDK (Layer isolating GTK from the details of the windowing system). I am using Ubuntu 8.04. When I run pkg-config --libs gdk-x11-2.0 on it I get the following result : -lgdk-x11-2.0 -lgdk_pixbuf-2.0 -lm -lpangocairo-1.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 whereas when i run the same command on another ubuntu machine I get some extra dependencies on libXcomposite, libXdamage etc. Can somebody please explain me this discrepancy. Does my application need to link to these libraries? Thanks ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments contained in it. Contact your Administrator for further information. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Why the Timer doesn't work? (about g_timeout_add())
I copy my source files CurveWindow.h and testCurveWindow.cpp below.
And attach them in this mail. You can compile them by:
$ g++ testCurveWindow.cpp -o testCurveWindow `pkg-config --cflags
--libs gtk+-2.0`
In this application, I create an 1 second timer to draw a moving line.
But in the function timer_1_test(), the timer is run only once, and
then stopped.
See the comment in this function.
The following is my two source files:
/***
* Filename : CurveWindow.h
* Begin : 2008-08-14 08:46:43
* Project : CurveWindow
* Author : Wu Yin
***/
#include iostream
#include gtk/gtk.h
using namespace std;
class CurveWindow
{
public:
CurveWindow(){};
GtkWidget *create_drawing_win();
GtkWidget *get_root_widget();
int draw();
GdkPixmap *pixmap;
private:
GtkWidget *drawing;
};
//
/* Create a new backing pixmap of the appropriate size */
static gboolean configure_event( GtkWidget *widget, GdkEvent *event,
gpointer data)
{
CurveWindow *self = (CurveWindow *)data;
GdkColor color;
GdkGC *gc = gdk_gc_new(widget-window);
self-pixmap = gdk_pixmap_new(widget-window,
widget-allocation.width,
widget-allocation.height,
-1);
// Draw the background
gdk_draw_rectangle (self-pixmap,
widget-style-white_gc,
TRUE,
0, 0,
widget-allocation.width,
widget-allocation.height);
return TRUE;
}
/***
* add by Wu Yin, 2008-08-14 08:55:09
***/
static gboolean redraw(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
printf(expose-event \n);
CurveWindow *self = (CurveWindow *)data;
gdk_draw_drawable (widget-window,
widget-style-fg_gc[GTK_WIDGET_STATE (widget)],
self-pixmap,
event-area.x, event-area.y,
event-area.x, event-area.y,
event-area.width, event-area.height);
return TRUE;
}
/***
* add by Wu Yin, 2008-08-19
***/
int CurveWindow::draw()
{
GtkWidget *widget = this-get_root_widget();
static int y = 0;
y += 10;
gdk_draw_line(pixmap,
widget-style-fg_gc[GTK_WIDGET_STATE(widget)],
0, 0, 120, y);
gtk_widget_draw(widget, NULL);
return 0;
}
/***
* add by Wu Yin, 2008-08-14 08:55:09
***/
GtkWidget *CurveWindow::get_root_widget()
{
return drawing;
}
/***
* add by Wu Yin, 2008-08-14 08:55:09
***/
GtkWidget *CurveWindow::create_drawing_win()
{
drawing = gtk_drawing_area_new();
g_signal_connect(G_OBJECT(drawing), expose-event,
G_CALLBACK(redraw), this);
g_signal_connect (G_OBJECT (drawing),configure_event,
G_CALLBACK (configure_event), this);
return drawing;
}
/***
* Filename : testCurveWindow.cpp
* Begin : 2008-08-14 08:46:43
* Project : CurveWindow
* Author : Wu Yin
***/
#include gtk/gtk.h
#include iostream
#include CurveWindow.h
using namespace std;
/***
* add by Wu Yin, 2008-08-14 08:55:09
***/
static void timer_1_test(gpointer data)
{
CurveWindow *cw = (CurveWindow *)data;
cw-draw();
/* !!! Look Here !!!
* Uncomment each statement of the following, the timer will run
correctly, WHY?
*/
// printf(timer_1_test() \n);
// gtk_widget_draw(cw-get_root_widget(), NULL);
}
/***
* add by Wu Yin, 2008-08-14 08:55:09
Re: Why the Timer doesn't work? (about g_timeout_add())
Look at this: static void timer_1_test(gpointer data) g_timeout_add(1000, (GSourceFunc)timer_1_test, cw); Then look at the documentation for GSourceFunc: http://library.gnome.org/devel/glib/stable/glib-The-Main-Event-Loop.html#GSourceFunc . Notice anything? --tml ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Hitting return in Gtk::Entry control doesn't do default action in dialog with Gtk::Notebook
Hi All, I have a dialogs with a Gtk::Entry control in a Gtk::Notebook and -- unlike other Gtk::Entry controls in dialogs without notebooks -- if I set: m_IDOK.set_flags(Gtk::CAN_DEFAULT); m_IDOK.grab_default(); ... m_ENTRY.set_activates_default(true); // Enter while editing should activate default OK Hitting Entry still doesn't activate the OK button. Thanks in Advance. -Garth -- Garth Upshaw Garth's KidStuff ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Question regarding the dependency of GDK on other libraries
Can anybody explain me the significance of Requires and Requires.private field in the pkg-config .pc file ? For the gdk-x11-2.0 package, one Ubuntu system has some of the X libs like Xcomposite, Xdamage etc in Requires field whereas another one has all of them in Requires.private field. This affect the applications using gdk as the application fails to load these X libraries during run time. I am not very clear about the pkg-config fields. Should there be a unique .pc file for a package like gdk and if so then what all should be its dependencies? Thanks Ruchi On Wed, Aug 20, 2008 at 12:40 AM, Kumar Siddharth [EMAIL PROTECTED] wrote: The first one can be considered as core dependencies for GTK/GDK. Second list is more like add-ons like compositing manager etc for Alpha/blending. Regards Siddharth -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Ruchi Lohani Sent: Wednesday, August 20, 2008 4:46 AM To: gtk-app-devel-list@gnome.org Subject: Question regarding the dependency of GDK on other libraries Hi, My application uses GTK and GDK (Layer isolating GTK from the details of the windowing system). I am using Ubuntu 8.04. When I run pkg-config --libs gdk-x11-2.0 on it I get the following result : -lgdk-x11-2.0 -lgdk_pixbuf-2.0 -lm -lpangocairo-1.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 whereas when i run the same command on another ubuntu machine I get some extra dependencies on libXcomposite, libXdamage etc. Can somebody please explain me this discrepancy. Does my application need to link to these libraries? Thanks ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments contained in it. Contact your Administrator for further information. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
(1) How to implement Image Buttons without gaps? (2) Can GtkImage stretch an image automatically?
Hi, (1) I have been looking for a way to use GtkButton to create an Image Button that is exactly of the same size as the GtkImage that it contains, so that two Image Buttons next to each others would leave no gap in between. I have some ideas in mind, but I wonder if I'm going to over-engineering them and if there is a well-known approach to solve this, supposedly, common problem. For this first issue, this is the main idea that I am considering to investigate: (1a) Subclassing GtkButton and force it to allocate the size of the GtkImage it contains and overwrite all its drawing functionalities that cause non-image area to appear around GtkImage. If focus or default lines are to be drawn, draw them on the inside edge of GtkImage or suppress them entirely if necessary. I haven't looked into GtkButton source code lately, but I think this approach can potentially boil down to reimplementing the entire button from scratch to derive from GtkWidget, if GtkButton turns out to not allow a subclass to override certain drawing function. Reimplementing a new button widget can cause deviation in functionalities in future GTK+ releases and I want to avoid if there is a better solution available. I am hoping someone would point out to me an easier way to accomplish this. If GtkButton simply is not able to function as Image Buttons without gap, I wonder if GTK+ developers considered the usage during the process of GtkButton implementation/development? I wonder if the usage model was intentionally excluded (for reasons that I am obviously not sure of -- maybe for memory efficiency reasons; or for theming reasons)? Or is it simply the case that it wasn't implemented yet? Or is this usage model really unusual? (2) I implemented image tiling using lower-level APIs before. However, I thought it was odd that tiling or stretching functionalities are missing from GtkImage. Is there a widget that can tile/stretch, for display, an image to cover its allocated size automatically? If not, are there popular approaches used to implement this functionality, other than using low-level drawing APIs? Insights are very much appreciated. Thanks. -- Daniel. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Markup in GtkTreeViewColumns
Hello people. It may be evident, but I can't seem to find how. I need to put markup in the column title of GtkTreeViewColumns, as the column titles are parameters with sub-indexes. (S11 etc). Is this possible? John ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Markup in GtkTreeViewColumns
John Coppens wrote: It may be evident, but I can't seem to find how. I need to put markup in the column title of GtkTreeViewColumns, as the column titles are parameters with sub-indexes. (S11 etc). Use gtk_tree_view_column_set_widget() on the column. You can then use any widget as a title, including a label with markup. Paul ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Markup in GtkTreeViewColumns
On Wed, 20 Aug 2008 22:47:02 +0300 Paul Pogonyshev [EMAIL PROTECTED] wrote: John Coppens wrote: It may be evident, but I can't seem to find how. I need to put markup in the column title of GtkTreeViewColumns, as the column titles are parameters with sub-indexes. (S11 etc). Use gtk_tree_view_column_set_widget() on the column. You can then use any widget as a title, including a label with markup. Paul I _knew_ it had to be simple ;-)Thanks lot, Paul! John ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Why the Timer doesn't work? (about g_timeout_add())
At last, I found it. Thanks. On 8/20/08, Tor Lillqvist [EMAIL PROTECTED] wrote: Look at this: static void timer_1_test(gpointer data) g_timeout_add(1000, (GSourceFunc)timer_1_test, cw); Then look at the documentation for GSourceFunc: http://library.gnome.org/devel/glib/stable/glib-The-Main-Event-Loop.html#GSourceFunc . Notice anything? --tml -- -- ┏┓ ┃菩提本无树，明镜亦非台。本来无一物，何处惹尘埃。┃ ┗┛ ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
