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/*
* Copyright (C) 2025 The Phosh Developers
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
* Author: Adam Honse <calcprogrammer1@gmail.com>
* Guido Günther <agx@sigxcpu.org>
*/
#include "scaling-quick-setting.h"
#include "plugin-shell.h"
#include "scale-row.h"
#include "util.h"
#include <glib/gi18n.h>
/**
* PhoshScalingQuickSetting:
*
* A quick setting for adjusting display scaling.
*/
struct _PhoshScalingQuickSetting {
PhoshQuickSetting parent;
GtkListBox *list_box;
PhoshStatusPage *status_page;
double scale;
double last_scale;
PhoshStatusIcon *info;
PhoshMonitor *monitor;
guint current_mode;
};
G_DEFINE_TYPE (PhoshScalingQuickSetting, phosh_scaling_quick_setting, PHOSH_TYPE_QUICK_SETTING);
static gboolean
transform_to_sensitive (GBinding *binding,
const GValue *from_value,
GValue *to_value,
gpointer user_data)
{
guint n_monitors = g_value_get_int (from_value);
g_value_set_boolean (to_value, n_monitors == 1);
return TRUE;
}
static void
fill_scales (PhoshScalingQuickSetting *self, guint32 width, guint32 height)
{
int n_scales;
g_autoptr (GList) children = NULL;
g_autofree float *scales = NULL;
scales = phosh_util_calculate_supported_mode_scales (width, height, &n_scales, TRUE);
children = gtk_container_get_children (GTK_CONTAINER (self->list_box));
for (GList *child = children; child; child = child->next)
gtk_container_remove (GTK_CONTAINER (self->list_box), child->data);
for (int i = 0; i < n_scales; i++) {
gboolean selected = G_APPROX_VALUE (self->scale, scales[i], FLT_EPSILON);
GtkWidget *row = phosh_scale_row_new (scales[i], selected);
gtk_list_box_insert (self->list_box, row, -1);
}
}
static void
on_monitor_configured (PhoshScalingQuickSetting *self, PhoshMonitor *monitor)
{
double scale;
g_assert (PHOSH_IS_SCALING_QUICK_SETTING (self));
g_assert (PHOSH_IS_MONITOR (monitor));
scale = phosh_monitor_get_fractional_scale (monitor);
if (!G_APPROX_VALUE (self->scale, scale, FLT_EPSILON)) {
const char *icon_name;
g_autofree char *label = NULL;
self->last_scale = self->scale;
self->scale = scale;
/* Translators: This is scale factor of a monitor in percent */
label = g_strdup_printf (_("%d%%"), (int)round(scale * 100));
phosh_status_icon_set_info (self->info, label);
icon_name = self->scale < 2.0 ? "screen-scaling-small-symbolic" :
"screen-scaling-large-symbolic";
phosh_status_icon_set_icon_name (self->info, icon_name);
}
fill_scales (self, monitor->width, monitor->height);
}
static void
set_primary_monitor (PhoshScalingQuickSetting *self, PhoshMonitor *monitor)
{
g_assert (PHOSH_IS_SCALING_QUICK_SETTING (self));
g_assert (PHOSH_IS_MONITOR (monitor));
if (self->monitor == monitor)
return;
if (self->monitor) {
g_signal_handlers_disconnect_by_data (self->monitor, self);
g_object_remove_weak_pointer (G_OBJECT (self->monitor), (gpointer *)&self->monitor);
self->current_mode = -1;
self->last_scale = 1.0;
}
self->monitor = monitor;
if (self->monitor) {
g_object_add_weak_pointer (G_OBJECT (self->monitor), (gpointer *)&self->monitor);
g_signal_connect_object (self->monitor,
"configured",
G_CALLBACK (on_monitor_configured),
self,
G_CONNECT_SWAPPED);
}
}
static void
on_primary_monitor_changed (PhoshScalingQuickSetting *self, GParamSpec *pspec, PhoshShell *shell)
{
set_primary_monitor (self, phosh_shell_get_primary_monitor (shell));
}
static void
set_scale (PhoshScalingQuickSetting *self, double scale)
{
PhoshMonitorManager *monitor_manager;
monitor_manager = phosh_shell_get_monitor_manager (phosh_shell_get_default ());
g_return_if_fail (PHOSH_IS_MONITOR_MANAGER (monitor_manager));
g_return_if_fail (PHOSH_IS_MONITOR (self->monitor));
g_return_if_fail (scale >= 0.0);
g_debug ("Setting monior scale to %f", scale);
phosh_monitor_manager_set_monitor_scale (monitor_manager, self->monitor, scale);
phosh_monitor_manager_apply_monitor_config (monitor_manager);
}
static void
on_clicked (PhoshScalingQuickSetting *self)
{
double scale;
scale = self->last_scale >= 1.0 ? self->last_scale : 1.0;
set_scale (self, scale);
}
static void
on_scale_row_activated (PhoshScalingQuickSetting *self, GtkListBoxRow *row)
{
PhoshScaleRow *scale_row = PHOSH_SCALE_ROW (row);
double scale;
scale = phosh_scale_row_get_scale (scale_row);
set_scale (self, scale);
g_signal_emit_by_name (self->status_page, "done", TRUE);
}
static void
phosh_scaling_quick_setting_class_init (PhoshScalingQuickSettingClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
gtk_icon_theme_add_resource_path (gtk_icon_theme_get_default (),
"/mobi/phosh/plugins/scaling-quick-setting/icons");
gtk_widget_class_set_template_from_resource (widget_class,
"/mobi/phosh/plugins/scaling-quick-setting/qs.ui");
gtk_widget_class_bind_template_child (widget_class, PhoshScalingQuickSetting, info);
gtk_widget_class_bind_template_child (widget_class, PhoshScalingQuickSetting, list_box);
gtk_widget_class_bind_template_child (widget_class, PhoshScalingQuickSetting, status_page);
gtk_widget_class_bind_template_callback (widget_class, on_clicked);
gtk_widget_class_bind_template_callback (widget_class, on_scale_row_activated);
}
static void
phosh_scaling_quick_setting_init (PhoshScalingQuickSetting *self)
{
PhoshShell *shell = phosh_shell_get_default ();
PhoshMonitorManager *monitor_manager;
gtk_widget_init_template (GTK_WIDGET (self));
self->last_scale = 1.0;
self->current_mode = -1;
monitor_manager = phosh_shell_get_monitor_manager (shell);
g_object_bind_property_full (monitor_manager, "n-monitors",
self, "sensitive",
G_BINDING_DEFAULT | G_BINDING_SYNC_CREATE,
transform_to_sensitive,
NULL, NULL, NULL);
g_signal_connect_object (shell,
"notify::primary-monitor",
G_CALLBACK (on_primary_monitor_changed),
self,
G_CONNECT_SWAPPED);
/* Catch up with current monitor */
on_primary_monitor_changed (self, NULL, shell);
if (self->monitor)
on_monitor_configured (self, self->monitor);
}
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