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Dark mode for process-statusbar

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This commit is contained in:
Valeriano A.R.
2023-11-22 01:28:53 +01:00
parent 910eeba0d7
commit 4882d673a3
4 changed files with 66 additions and 26 deletions
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29
src/process-monitor.c
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@@ -47,7 +47,6 @@ static void xtm_process_monitor_set_property (GObject *object, guint property_id
static gboolean xtm_process_monitor_draw (GtkWidget *widget, cairo_t *cr);
static void xtm_process_monitor_paint (XtmProcessMonitor *monitor, cairo_t *cr);
static gboolean xtm_process_monitor_is_dark_mode (XtmProcessMonitor *monitor);
static void
@@ -68,21 +67,22 @@ xtm_process_monitor_class_init (XtmProcessMonitorClass *klass)
}
static void
xtm_process_monitor_on_notify_theme_name (GtkSettings *settings, GParamSpec* pSpec, XtmProcessMonitor* monitor)
xtm_process_monitor_on_notify_theme_name (XtmProcessMonitor *monitor)
{
monitor->dark_mode = xtm_process_monitor_is_dark_mode (monitor);
monitor->dark_mode = xtm_gtk_widget_is_dark_mode (GTK_WIDGET (monitor));
}
static void
xtm_process_monitor_init (XtmProcessMonitor *monitor)
{
GtkSettings *settings = gtk_settings_get_default();
GtkSettings *settings = gtk_settings_get_default ();
monitor->history = g_array_new (FALSE, TRUE, sizeof (gfloat));
monitor->history_swap = g_array_new (FALSE, TRUE, sizeof (gfloat));
monitor->dark_mode = xtm_process_monitor_is_dark_mode (monitor);
monitor->dark_mode = xtm_gtk_widget_is_dark_mode (GTK_WIDGET (monitor));
g_signal_connect (settings, "notify::gtk-theme-name", G_CALLBACK (xtm_process_monitor_on_notify_theme_name), monitor);
g_signal_connect_swapped (settings, "notify::gtk-theme-name", G_CALLBACK (xtm_process_monitor_on_notify_theme_name), monitor);
g_signal_connect (monitor, "realize", G_CALLBACK (xtm_process_monitor_on_notify_theme_name), NULL);
}
static void
@@ -155,23 +155,6 @@ xtm_process_monitor_draw (GtkWidget *widget, cairo_t *cr)
return FALSE;
}
static gboolean
xtm_process_monitor_is_dark_mode (XtmProcessMonitor *monitor)
{
GtkStyleContext *context;
GdkRGBA *color;
double luminosity;
gboolean dark_mode;
context = gtk_widget_get_style_context (gtk_widget_get_toplevel (GTK_WIDGET (monitor)));
gtk_style_context_get (context, GTK_STATE_FLAG_NORMAL, GTK_STYLE_PROPERTY_BACKGROUND_COLOR, &color, NULL);
luminosity = (0.2126 * color->red + 0.7152 * color->green + 0.0722 * color->blue);
gdk_rgba_free (color);
dark_mode = (luminosity < 0.5);
return dark_mode;
}
static void
xtm_process_monitor_cairo_set_source_rgba (cairo_t *cr, double red, double green, double blue, double alpha, gboolean invert)
{

44
src/process-statusbar.c
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@@ -17,6 +17,7 @@
#include "process-statusbar.h"
#include "settings.h"
#include "task-manager.h"
@@ -48,6 +49,8 @@ struct _XtmProcessStatusbar
gchar memory[64];
gchar swap[64];
guint num_processes;
gboolean dark_mode;
};
G_DEFINE_TYPE (XtmProcessStatusbar, xtm_process_statusbar, GTK_TYPE_BOX)
@@ -75,13 +78,43 @@ xtm_process_statusbar_class_init (XtmProcessStatusbarClass *klass)
g_param_spec_uint ("num-processes", "NumProcesses", "Number of processes", 0, G_MAXUINT, 0, G_PARAM_CONSTRUCT|G_PARAM_WRITABLE));
}
static void
xtm_process_statusbar_set_label_style (XtmProcessStatusbar *statusbar, GtkWidget *label)
{
GtkStyleContext *context;
gboolean has_dark_mode;
context = gtk_widget_get_style_context (label);
has_dark_mode = gtk_style_context_has_class (context, "dark");
if (has_dark_mode && !statusbar->dark_mode)
gtk_style_context_remove_class (context, "dark");
if (!has_dark_mode && statusbar->dark_mode)
gtk_style_context_add_class (context, "dark");
}
static void
xtm_process_statusbar_on_notify_theme_name (XtmProcessStatusbar *statusbar)
{
statusbar->dark_mode = xtm_gtk_widget_is_dark_mode (GTK_WIDGET (statusbar));
xtm_process_statusbar_set_label_style (statusbar, statusbar->label_cpu);
xtm_process_statusbar_set_label_style (statusbar, statusbar->label_num_processes);
xtm_process_statusbar_set_label_style (statusbar, statusbar->label_memory);
xtm_process_statusbar_set_label_style (statusbar, statusbar->label_swap);
}
static void
xtm_process_statusbar_init (XtmProcessStatusbar *statusbar)
{
GtkSettings *settings = gtk_settings_get_default ();
GtkWidget *hbox, *hbox_cpu, *hbox_mem;
GtkStyleContext *context;
GtkCssProvider *provider;
statusbar->settings = xtm_settings_get_default ();
statusbar->dark_mode = xtm_gtk_widget_is_dark_mode (GTK_WIDGET (statusbar));
g_signal_connect_swapped (settings, "notify::gtk-theme-name", G_CALLBACK (xtm_process_statusbar_on_notify_theme_name), statusbar);
g_signal_connect (statusbar, "realize", G_CALLBACK (xtm_process_statusbar_on_notify_theme_name), NULL);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 16);
hbox_cpu = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 16);
@@ -91,7 +124,7 @@ xtm_process_statusbar_init (XtmProcessStatusbar *statusbar)
gtk_box_pack_start (GTK_BOX (hbox_cpu), statusbar->label_cpu, TRUE, FALSE, 0);
context = gtk_widget_get_style_context (statusbar->label_cpu);
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_data (provider, "* { color: #ff6e00; }", -1, NULL);
gtk_css_provider_load_from_data (provider, "* { color: #ff6e00; } .dark { color: #0091ff; }", -1, NULL);
gtk_style_context_add_provider (context, GTK_STYLE_PROVIDER (provider), GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
g_object_unref (provider);
@@ -103,7 +136,7 @@ xtm_process_statusbar_init (XtmProcessStatusbar *statusbar)
gtk_box_pack_start (GTK_BOX (hbox_mem), statusbar->label_memory, TRUE, FALSE, 0);
context = gtk_widget_get_style_context (statusbar->label_memory);
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_data (provider, "* { color: #cb386c; }", -1, NULL);
gtk_css_provider_load_from_data (provider, "* { color: #cb386c; } .dark { color: #34c793; }", -1, NULL);
gtk_style_context_add_provider (context, GTK_STYLE_PROVIDER (provider), GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
g_object_unref (provider);
@@ -112,7 +145,7 @@ xtm_process_statusbar_init (XtmProcessStatusbar *statusbar)
gtk_box_pack_start (GTK_BOX (hbox_mem), statusbar->label_swap, TRUE, FALSE, 0);
context = gtk_widget_get_style_context (statusbar->label_swap);
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_data (provider, "* { color: #75324d; }", -1, NULL);
gtk_css_provider_load_from_data (provider, "* { color: #75324d; } .dark { color: #8acdb2; }", -1, NULL);
gtk_style_context_add_provider (context, GTK_STYLE_PROVIDER (provider), GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
g_object_unref (provider);
@@ -122,6 +155,11 @@ xtm_process_statusbar_init (XtmProcessStatusbar *statusbar)
gtk_box_pack_start (GTK_BOX (statusbar), hbox, TRUE, TRUE, 0);
xtm_process_statusbar_set_label_style (statusbar, statusbar->label_cpu);
xtm_process_statusbar_set_label_style (statusbar, statusbar->label_num_processes);
xtm_process_statusbar_set_label_style (statusbar, statusbar->label_memory);
xtm_process_statusbar_set_label_style (statusbar, statusbar->label_swap);
gtk_widget_show_all (hbox);
}

18
src/task-manager.c
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@@ -594,3 +594,21 @@ task_pid_compare_fn(gconstpointer a, gconstpointer b)
{
return (((const Task*)a)->pid - ((const Task*)b)->pid);
}
/* About the constants used below, see for example: https://stackoverflow.com/a/596243 */
gboolean
xtm_gtk_widget_is_dark_mode (GtkWidget *widget)
{
GtkStyleContext *context;
GdkRGBA *color;
double luminosity;
gboolean dark_mode;
context = gtk_widget_get_style_context (gtk_widget_get_toplevel (widget));
gtk_style_context_get (context, GTK_STATE_FLAG_NORMAL, GTK_STYLE_PROPERTY_BACKGROUND_COLOR, &color, NULL);
luminosity = (0.2126 * color->red + 0.7152 * color->green + 0.0722 * color->blue);
gdk_rgba_free (color);
dark_mode = (luminosity < 0.5);
return dark_mode;
}

1
src/task-manager.h
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@@ -115,5 +115,6 @@ gboolean set_priority_to_pid (GPid pid, gint priority);
# define G_DEBUG_FMT(fmt, args...)
#endif
gboolean xtm_gtk_widget_is_dark_mode (GtkWidget *widget);
#endif /* !TASK_MANAGER_H */