Re: Custom GtkHeaderBar
I gave it another try and "header" gtk_style_context_add_class() is
transparent. I can use "menu" and that returns a darker color that is used on
the title bar.
It is C again. I did get foo.vala output to foo.c. Too much stuff.
Eric
/*
gcc -Wall box1.c -o box1 `pkg-config --cflags --libs gtk+-3.0`
Tested with GTK3.18 on Ubuntu16.04
*/
#include
static gboolean draw_main_window(GtkWidget *widget, cairo_t *cr, gpointer data);
static gboolean draw_event_box(GtkWidget *widget, cairo_t *cr, gpointer data);
static void close_program(GtkWidget *widget, gpointer user_data);
int main(int argc, char *argv[])
{
gtk_init (&argc, &argv);
GtkWidget *window=gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window), "Title Bar");
gtk_window_set_default_size(GTK_WINDOW(window), 200, 200);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_widget_set_app_paintable(window, TRUE);
g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
g_signal_connect(window, "draw", G_CALLBACK(draw_main_window), NULL);
GtkWidget *button=gtk_button_new_with_label("Close");
g_signal_connect(button, "clicked", G_CALLBACK(close_program), NULL);
GtkWidget *label1=gtk_label_new("Header");
gtk_label_set_markup(GTK_LABEL(label1), "Header");
GtkWidget *label2=gtk_label_new("Bar");
gtk_label_set_markup(GTK_LABEL(label2), "Bar");
GtkWidget *box=gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
gtk_container_set_border_width(GTK_CONTAINER(box), 10);
gtk_widget_set_hexpand(box, TRUE);
gtk_box_pack_start(GTK_BOX(box), button, TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(box), label1, TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(box), label2, TRUE, TRUE, 0);
GtkWidget *event=gtk_event_box_new();
GtkStyleContext *context=gtk_widget_get_style_context(event);
//Use the menu background.
gtk_style_context_add_class(context, "menu");
gtk_container_add(GTK_CONTAINER(event), box);
g_signal_connect(event, "draw", G_CALLBACK(draw_event_box), NULL);
gtk_window_set_titlebar(GTK_WINDOW(window), event);
GtkWidget *label3=gtk_label_new("Main");
gtk_widget_set_vexpand(label3, TRUE);
gtk_widget_set_hexpand(label3, TRUE);
GtkWidget *label4=gtk_label_new("Window");
gtk_widget_set_vexpand(label4, TRUE);
gtk_widget_set_hexpand(label4, TRUE);
GtkWidget *grid=gtk_grid_new();
gtk_grid_attach(GTK_GRID(grid), label3, 0, 0, 1, 1);
gtk_grid_attach(GTK_GRID(grid), label4, 0, 1, 1, 1);
gtk_container_add(GTK_CONTAINER(window), grid);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
static gboolean draw_main_window(GtkWidget *widget, cairo_t *cr, gpointer data)
{
//Paint the main window.
cairo_set_source_rgb(cr, 0.0, 1.0, 0.0);
cairo_paint(cr);
return FALSE;
}
static gboolean draw_event_box(GtkWidget *widget, cairo_t *cr, gpointer data)
{
//Paint the event box header bar.
gint width=gtk_widget_get_allocated_width(widget);
gint height=gtk_widget_get_allocated_height(widget);
GtkStyleContext *context=gtk_widget_get_style_context(widget);
gtk_render_background(context, cr, 0, 0, width, height);
return FALSE;
}
static void close_program(GtkWidget *widget, gpointer user_data)
{
gtk_main_quit();
}
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Re: Custom GtkHeaderBar
Well I made a mess of that. I haven't worked with Vala and thought that looked like C#. I have some time on the weekend so I will have to take a look at Vala and run your code so I understand it better. I can get the theme color with gtk_widget_get_style_context() if I have a GtkHeaderBar. If I don't have a GtkHeaderBar widget I don't know how to get the theme color for the header bar. Something else I haven't figured out yet. If you get that figured out I would like to know myself. Another option for a custom GtkHeaderBar is to use an event box and put the horizontal box in it. That way you have the event box window and can draw the background a little easier. Eric ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Custom GtkHeaderBar
On 04/15/17 04:36, cecas...@aol.com-san wrote: I suspect set_titlebar(header); is causing the problem. If you remove that, then you will have a box that you place in the main window. If it is a header bar box it will be below the titlebar. The box itself is just doing the layout so it uses the window behind it. You can draw on the window with a style context like GtkStyleContext *context=gtk_widget_get_style_context(GTK_WIDGET(widget)); gtk_render_background(context, cr, 0, 0, width, height+20); Probably I think it cannot get the theme color of GtkHeaderBar. to get a specific widget color instead of setting the color with cairo. A little limited here since I don't have a C# setup and am using GTK3.18 which doesn't have all the 3.22 functions. What OS are you using and how did you setup C# for programming with? Eric ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: Custom GtkHeaderBar
On 04/16/17 00:05, Takao Fujiwara-san wrote: On 04/15/17 04:36, cecas...@aol.com-san wrote: A little limited here since I don't have a C# setup and am using GTK3.18 which doesn't have all the 3.22 functions. What OS are you using and how did you setup C# for programming with? Sorry, ignored this question. Now I understood what you asked. It was a Vala code but not C#. You can output C code by `valac --ccode foo.vala --pkg gtk+-3.0` I wrote the vala code because I think it easily show the example of the inherited class. Fujiwara Eric ___ 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: Custom GtkHeaderBar
On 04/15/17 04:36, cecas...@aol.com-san wrote: A little limited here since I don't have a C# setup and am using GTK3.18 which doesn't have all the 3.22 functions. What OS are you using and how did you setup C# for programming with? Sorry, ignored this question. Now I understood what you asked. It was a Vala code but not C#. Fujiwara Eric ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
guile 2.0 / ghci REPL integration
Hello, I am developping a C application using GTK3 on Debian stretch. I would like to add a REPL into it (ghkl, which is a diffractometer control application). I know about haskell, so it would be nice to have ghci integrated into it. But if necessary I could have a look at guile-2.0, whch dos not seems bad at all for this purpose. I just need to write things like traj hkl 1 1 1 1 2 3 100 ca hkl 1 1 1 mv omega 4 mv etc... Do you have examples of this kind of integration in gtk3 applications ? thanks for yur help Frederic ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
