widget to represent dial/speedometer kind of object
Hi list , is there any widget available to represent meter/dial/speedometer kind of object, needle of which rotates dynamically with magnitude of input values one widget i found is Gtkdial , but it has support from gtk+-2.18 onwards and i am having gtk+-2.10.0 HELP ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: making button insensitive to mouse clicks
Firstly, my button is not toggle button (its simple button) Secondly, software emmited signals (using gtk_button_clicked()) should be caught. completely disabling button will not help On Thursday, 21 November 2013 10:52 PM, Eric Wajnberg wrote: Hi, I guess that gtk_toggle_button_set_active(Button,FALSE); is doing the trick. Cheers, Mahesh Chaudhari wrote, On 22/11/2013 07:04, Hi list, is it possible to make GtkButton insensitive to mouse click and mouse hover however it should catch the signal sent through gtk_button_clicked() and gtk_button_entered() ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list -- ~~Eric Wajnberg Associated Professor at the University of Montreal (Quebec, Canada) I.N.R.A. 400 Route des Chappes, BP 167, 06903 Sophia Antipolis Cedex, France Tel: (33-0) 4.92.38.64.47 Fax: (33-0) 4.92.38.65.57 e-mail: wajnb...@sophia.inra.fr Web page: http://www.sophia.inra.fr/perso/wajnberg/ Editor-in-Chief of BioControl, Published by Springer. ~~ ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
making button insensitive to mouse clicks
Hi list, is it possible to make GtkButton insensitive to mouse click and mouse hover however it should catch the signal sent through gtk_button_clicked() and gtk_button_entered() ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: deactivate "enter" signal on GtkButton
Andrew,
when so ever theme style may get applied but
I am doing this in enter signal handler i.e. whenever I keep mouse pointer over
button ,
style of the normal state copied to prelight state
On Thursday, 7 November 2013 10:46 AM, Andrew Potter wrote:
On Thu, Nov 7, 2013 at 4:10 AM, Mahesh Chaudhari
wrote:
> Also (unsuccessfully) tried :
> void enter_button1(GtkWidget *widget, gpointer data)
> {
> GtkStyle *style;
> style = gtk_widget_get_style(button1);
> style->bg[GTK_STATE_PRELIGHT] = style->bg[GTK_STATE_NORMAL];
> gtk_widget_set_style(button1, style);
> }
This may not have worked because the theme style may be being applied
after you call this function.
I would make a custom CSS theme and load it with priority
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION.
See https://developer.gnome.org/gtk3/stable/GtkCssProvider.htmland
https://developer.gnome.org/gtk3/stable/GtkStyleContext.html#gtk-style-context-add-provider-for-screen
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deactivate "enter" signal on GtkButton
Hi ,
which one to use if I wants my button should not glow on hovering mouse pointer
over the button
1. g_signal_handler_block()
2. g_signal_handler_disconnect()
3. g_signal_stop_emmission()
4. g_signal_override_class_closure()
5. g_signal_override_class_handler()
6. gtk_widget_set_events() // tried with no success
Also (unsuccessfully) tried :
void enter_button1(GtkWidget *widget, gpointer data)
{
GtkStyle *style;
style = gtk_widget_get_style(button1);
style->bg[GTK_STATE_PRELIGHT] = style->bg[GTK_STATE_NORMAL];
gtk_widget_set_style(button1, style);
}
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Re: not able to change color of widget
Many thanks Ruslan,
got my things working now...
except with one problem that is
all widgets (mostly buttons) fitted into top level window disappears when I
switch window and come back
On Friday, 1 November 2013 2:13 PM, Ruslan Kabatsayev
wrote:
OK, now I see your problem. You set new color for the button, and
don't really allow GTK to redraw it. I.e. you change color variable,
but actual widget is not updated. Moreover, as your program is in busy
waiting, the user can't interact with it.
Let's think busy waiting is by design. Now you need to update your
button, in other words, you want to process all pending events. This
can be done by adding the following code at the end of your while()
loop:
while(gtk_events_pending())
gtk_main_iteration_do(FALSE);
This will do gtk_main iteration for all pending events, then let you
continue your outer while() loop.
On Fri, Nov 1, 2013 at 3:56 PM, Mahesh Chaudhari
wrote:
> thanks Ruslan,
> it worked, it meant problem lies with other logic (using INOTIFY to wait for
> file change)
> The entire code (clean compilable) is
>
> #include
> #include
> #include
> #define EVENT_SIZE ( sizeof (struct inotify_event) )
> #define BUF_LEN ( 1024 * ( EVENT_SIZE + 16 ) )
> GtkWidget *button1, *button2, *button3, *button4, *button5;
> void click_button1(GtkWidget *widget, gpointer data)
> {
> printf("in click_button1\n");
> GdkColor color;
> color.red = 27000;
> color.green = 30325;
> color.blue = 34181;
> // gtk_widget_modify_fg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &color);
> gtk_widget_modify_bg(GTK_WIDGET(button1), GTK_STATE_NORMAL, &color);
> }
> void click_button2(GtkWidget *widget, gpointer data)
> {
> printf("in click_button2\n");
> GdkColor color;
> color.red = 27000;
> color.green = 30325;
> color.blue = 34181;
> // gtk_widget_modify_fg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &color);
> gtk_widget_modify_bg(GTK_WIDGET(button2), GTK_STATE_NORMAL, &color);
> }
> void click_button_start(GtkWidget *widget, gpointer data)
> {
> int notifyfd, watchfd, len=0;
> notifyfd = inotify_init();
> if (notifyfd<0)perror("inotify_init failed\n");
> watchfd = inotify_add_watch(notifyfd,
> "/home/user/Desktop/mahesh/GTK+/trials/putty.log", IN_MODIFY);
> if(watchfd<0)perror("inotify_add_watch failed\n");
> while(1)
> {
> printf("waiting for file change\n");
> struct inotify_event* event = malloc(BUF_LEN);
> len = read(notifyfd, event, BUF_LEN);
> if(len>0){
> gtk_button_clicked(GTK_BUTTON(button1));
> }
> free(event);
> }
> }
>
> int main (int argc,char **argv)
> {
> GtkWidget *button_start;
> GtkWidget *window;
>
> GtkWidget *hbox,*vbox;
> GdkColor color;
> gdk_color_parse ("blue", &color);
> gtk_init (&argc,&argv);
>
> /*...create top level window...*/
>
> window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
> gtk_window_set_title(GTK_WINDOW(window), "LED status");
> gtk_window_set_default_size(GTK_WINDOW(window), 250, 80);
> gtk_container_set_border_width(GTK_CONTAINER(window), 5);
> g_signal_connect (G_OBJECT(window), "destroy",
> G_CALLBACK (gtk_main_quit), NULL);
>
> /*. create buttons ..*/
> button_start = gtk_button_new_with_label("start");
> g_signal_connect(G_OBJECT(button_start), "clicked",
> G_CALLBACK(click_button_start), NULL);
> button1 = gtk_button_new_with_label ("button1");
> g_signal_connect(G_OBJECT(button1), "clicked",
> G_CALLBACK(click_button1), NULL);
> button2 = gtk_button_new_with_label ("button2");
> g_signal_connect(G_OBJECT(button2), "clicked",
> G_CALLBACK(click_button2), NULL);
> button3 = gtk_button_new_with_label ("button3");
> button4 = gtk_button_new_with_label ("button4");
> button5 = gtk_button_new_with_label ("button5");
>
> /*.. Alignements..*/
>
> hbox = gtk_hbox_new(TRUE,1);
> vbox = gtk_vbox_new(TRUE,1);
> gtk_box_pack_start(GTK_BOX(hbox), button1, 1, 1, 0);
> gtk_box_pack_start(GTK_BOX(hbox), button2, 1, 1, 0);
> gtk_box_pack_start(GTK_BOX(hbox), button3, 1, 1, 0);
> gtk_box_pack_start(GTK_BOX(hbox), button4, 1, 1, 0);
> gtk_box_pack_start(GTK_BOX(hbox), button5, 1, 1, 0);
> gtk_box_pack_start(GTK_BOX(vbox), button_start, 1, 1, 0);
Re: not able to change color of widget
thanks Ruslan,
it worked, it meant problem lies with other logic (using INOTIFY to wait for
file change)
The entire code (clean compilable) is
#include
#include
#include
#define EVENT_SIZE ( sizeof (struct inotify_event) )
#define BUF_LEN ( 1024 * ( EVENT_SIZE + 16 ) )
GtkWidget *button1, *button2, *button3, *button4, *button5;
void click_button1(GtkWidget *widget, gpointer data)
{
printf("in click_button1\n");
GdkColor color;
color.red = 27000;
color.green = 30325;
color.blue = 34181;
// gtk_widget_modify_fg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &color);
gtk_widget_modify_bg(GTK_WIDGET(button1), GTK_STATE_NORMAL, &color);
}
void click_button2(GtkWidget *widget, gpointer data)
{
printf("in click_button2\n");
GdkColor color;
color.red = 27000;
color.green = 30325;
color.blue = 34181;
// gtk_widget_modify_fg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &color);
gtk_widget_modify_bg(GTK_WIDGET(button2), GTK_STATE_NORMAL, &color);
}
void click_button_start(GtkWidget *widget, gpointer data)
{
int notifyfd, watchfd, len=0;
notifyfd = inotify_init();
if (notifyfd<0)perror("inotify_init failed\n");
watchfd = inotify_add_watch(notifyfd,
"/home/user/Desktop/mahesh/GTK+/trials/putty.log", IN_MODIFY);
if(watchfd<0)perror("inotify_add_watch failed\n");
while(1)
{
printf("waiting for file change\n");
struct inotify_event* event = malloc(BUF_LEN);
len = read(notifyfd, event, BUF_LEN);
if(len>0){
gtk_button_clicked(GTK_BUTTON(button1));
}
free(event);
}
}
int main (int argc,char **argv)
{
GtkWidget *button_start;
GtkWidget *window;
GtkWidget *hbox,*vbox;
GdkColor color;
gdk_color_parse ("blue", &color);
gtk_init (&argc,&argv);
/*...create top level window...*/
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window), "LED status");
gtk_window_set_default_size(GTK_WINDOW(window), 250, 80);
gtk_container_set_border_width(GTK_CONTAINER(window), 5);
g_signal_connect (G_OBJECT(window), "destroy",
G_CALLBACK (gtk_main_quit), NULL);
/*. create buttons ..*/
button_start = gtk_button_new_with_label("start");
g_signal_connect(G_OBJECT(button_start), "clicked",
G_CALLBACK(click_button_start), NULL);
button1 = gtk_button_new_with_label ("button1");
g_signal_connect(G_OBJECT(button1), "clicked",
G_CALLBACK(click_button1), NULL);
button2 = gtk_button_new_with_label ("button2");
g_signal_connect(G_OBJECT(button2), "clicked",
G_CALLBACK(click_button2), NULL);
button3 = gtk_button_new_with_label ("button3");
button4 = gtk_button_new_with_label ("button4");
button5 = gtk_button_new_with_label ("button5");
/*.. Alignements..*/
hbox = gtk_hbox_new(TRUE,1);
vbox = gtk_vbox_new(TRUE,1);
gtk_box_pack_start(GTK_BOX(hbox), button1, 1, 1, 0);
gtk_box_pack_start(GTK_BOX(hbox), button2, 1, 1, 0);
gtk_box_pack_start(GTK_BOX(hbox), button3, 1, 1, 0);
gtk_box_pack_start(GTK_BOX(hbox), button4, 1, 1, 0);
gtk_box_pack_start(GTK_BOX(hbox), button5, 1, 1, 0);
gtk_box_pack_start(GTK_BOX(vbox), button_start, 1, 1, 0);
gtk_box_pack_start(GTK_BOX(vbox), hbox, 1, 1, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
/*show...*/
gtk_widget_show_all (window);
gtk_main();
return 0;
}
On Friday, 1 November 2013 1:43 AM, Ruslan Kabatsayev
wrote:
Well, it worked. Didn't it work for you?
Also, in the future please give _compilable_ code - it's no fun to fix
compilation errors just to try it out.
On Thu, Oct 31, 2013 at 3:11 PM, Mahesh Chaudhari
wrote:
> Ruslan ,
> that is working with mouse clicks (works for me also)
> what I wanted is without clicking with mouse, generate a click signal event
> (through a program only) and and thus color should be changed
> try this one if possible (click only "start" button with mouse and color of
> button1 should be changed)
>
> GtkWidget *button1, *button2, *button3, *button4, *button5;
> void click_button1(GtkWidget *widget, gpointer data)
> {
> printf("in click_button1\n");
> GdkColor color;
> color.red = 27000;
> color.green = 30325;
> color.blue = 34181;
> // gtk_widget_modify_fg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &color);
> gtk_widget_modify_bg(GTK_WIDGET(button1), GTK_STATE_NORMAL, &color);
> }
>
> void click_button_start(GtkWidget *widget, gpointer
not able to change color of widget
what am I doing wrong in Following Code :
GtkWidget *button1;
void click_button1(GtkWidget *widget, gpointer data)
{
printf("I am in click_button\n");// able to print this
GdkColor color;
color.red = 27000;
color.green = 30325;
color.blue = 34181;
gtk_widget_modify_bg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &color);
//gtk_widget_modify_fg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &color);
}
some_callback_func()
{
gtk_button_clicked(GTK_BUTTON(button1));
. }
int main(int argc, char** argv)
{
gtk_init(&argc,&argv);
button1 = gtk_button_new_with_label ("button1");
g_signal_connect(G_OBJECT(button1), "clicked", G_CALLBACK(click_button1),
NULL);
gtk_widget_show_all (window);
gtk_main();
return 0;
}
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gtk_widget_modify_bg - does not work
what am I doing wrong in Following Code
GtkWidget *button1;
void click_button1(GtkWidget *widget, gpointer data)
{
GdkColor color;
color.red = 27000;
color.green = 30325;
color.blue = 34181;
gtk_widget_modify_bg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &color);
}
some_callback_func()
{
gtk_button_clicked(GTK_BUTTON(button1));
. }
main()
{
button1 = gtk_button_new_with_label ("button1");
g_signal_connect(G_OBJECT(button1), "clicked", G_CALLBACK(click_button1),
NULL);
gtk_widget_show_all (window);
gtk_main();
return 0;
}
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Clicked event on GtkButton
Does it make any difference, generating "clicked" event using mouse click OR
gtk_button_clicked() call
My clicked event callback rightly changes background colour when clicked using
mouse however change does not reflect when the event is generated using
gtk_button_clicked() with following code :
Gtkwidget *button1;
void click_button1(GtkWidget *widget, gpointer data)
{
GdkColor color;
color.red = 27000;
color.green = 30325;
color.blue = 34181;
gtk_widget_modify_bg(button1, GTK_STATE_NORMAL, &color);
gtk_widget_show_now(GTK_BUTTON(button1));
}
Any Clue ?
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Re: Output Widgets
Output widget in the sense , user is informed (e.g. by changing widget's color) about some system events not user provides input (e.g button press, mouse clicks) in short I wanted to represent an LED which should change color according to some condition From: Dov Grobgeld To: Mahesh Chaudhari Cc: "gtk-app-devel-list@gnome.org" Sent: Monday, 7 October 2013 3:41 AM Subject: Re: Output Widgets Please define what you mean with an "output" widget. All widgets are output widgets in a sense, but e.g. GtkLabel is an output label for text messages (and images). On Mon, Oct 7, 2013 at 12:44 PM, Mahesh Chaudhari wrote: Are there any output widgets available with GTK+-2.0 >___ >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
Output Widgets
Are there any output widgets available with GTK+-2.0 ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
how to label a cairo drawings in gtk+-2.0
Hi List,
I have drawn five circles in GtkDrawingArea as below :
#include
#include
#include
GtkWidget* window;
GtkWidget* darea;
static gboolean on_expose_event(GtkWidget *widget, GdkEventExpose *event,
gpointer data)
{
cairo_t *cr;
cr = gdk_cairo_create(darea->window);
cairo_arc(cr,50,60,20,0,2*M_PI);
cairo_arc(cr,110,60,20,0,2*M_PI);
cairo_arc(cr,170,60,20,0,2*M_PI);
cairo_arc(cr,230,60,20,0,2*M_PI);
cairo_arc(cr,300,60,20,0,2*M_PI);
cairo_set_source_rgba (cr, 0.5, 0, 0, 0.5);
cairo_fill(cr);
}
int main(int argc, char **argv)
{
gtk_init(&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(window), 400, 100);
darea = gtk_drawing_area_new();
gtk_container_add(GTK_CONTAINER(window), darea);
g_signal_connect(darea, "expose-event",
G_CALLBACK(on_expose_event), NULL);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
I want to put label(text) above each circle, Also colour should be change after
few seconds
How can I do this ? I have to use CentOS-5.3 which has gtk+-2.10.0
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Re: changing colour of widget
Thanks Vest V for reply I can able to draw circles using GtkDrawingArea and cairo but is there any alternative to GIO as I have to use CentOS-5.3 (glib version 2.10) and I think GIO is not supported in this version OR from where do I install GIO library From: Vest V. To: "gtk-app-devel-list@gnome.org" Sent: Thursday, 26 September 2013 4:11 AM Subject: Re: changing colour of widget Hello Mahesh, It depends on which approach you want to use: draw LEDs manually, or display images. The first possible widget is GtkDrawingArea: https://developer.gnome.org/gtk3/3.2/GtkDrawingArea.html,the second is GtkImage: https://developer.gnome.org/gtk3/3.2/GtkImage.html Regarding the event: probably you need GIO library (especially the GFileMonitor: https://developer.gnome.org/gio/unstable/GFileMonitor.html) Kind regards, Vlad On Thu, Sep 26, 2013 at 12:17 PM, Mahesh Chaudhari < mahesh.chaudh...@ymail.com> wrote: > Hi List, > I am very new to GTK+ programming and got a task of developing user > interface (GUI) to one of our embedded board > I went through basics of GTK searching for any widget that could represent > on board LEDs, which can glows (basically changes colour) > Also, is it possible to generate an event whenever file is updated instead > of user (mouse clicks, keyboard press) > > > Any Help > ___ > 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
changing colour of widget
Hi List, I am very new to GTK+ programming and got a task of developing user interface (GUI) to one of our embedded board I went through basics of GTK searching for any widget that could represent on board LEDs, which can glows (basically changes colour) Also, is it possible to generate an event whenever file is updated instead of user (mouse clicks, keyboard press) Any Help ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
