AuroraMiddleware/gtk
1
0
Fork 1
mirror of https://gitlab.gnome.org/GNOME/gtk.git synced 2024-11-08 09:40:10 +00:00
Code Issues Projects Releases Wiki Activity

monitor: Add gdk_monitor_get_scale

Browse Source 
This matches the surface api we have, and closes an api gap.
This commit is contained in:
Matthias Clasen 2024-01-30 20:08:01 -05:00
parent ea6ad66ee3
commit 8df8d0bd5d
4 changed files with 96 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
gdk/gdkmonitor.c
View File

@ -26,6 +26,8 @@
#include "gdkenumtypes.h"
#include "gdkrectangle.h"
#include <math.h>
/**
* GdkMonitor:
*
@ -46,6 +48,7 @@ enum {
PROP_MODEL,
PROP_CONNECTOR,
PROP_SCALE_FACTOR,
PROP_SCALE,
PROP_GEOMETRY,
PROP_WIDTH_MM,
PROP_HEIGHT_MM,
@ -70,6 +73,8 @@ static void
gdk_monitor_init (GdkMonitor *monitor)
{
monitor->scale_factor = 1;
monitor->scale = 1.0;
monitor->scale_set = FALSE;
monitor->valid = TRUE;
}
@ -107,6 +112,10 @@ gdk_monitor_get_property (GObject *object,
g_value_set_int (value, monitor->scale_factor);
break;
case PROP_SCALE:
g_value_set_double (value, monitor->scale);
break;
case PROP_GEOMETRY:
g_value_set_boxed (value, &monitor->geometry);
break;
@ -233,13 +242,28 @@ gdk_monitor_class_init (GdkMonitorClass *class)
* GdkMonitor:scale-factor: (attributes org.gtk.Property.get=gdk_monitor_get_scale_factor)
*
* The scale factor.
*
* The scale factor is the next larger integer,
* compared to [property@Gdk.Surface:scale].
*/
props[PROP_SCALE_FACTOR] =
g_param_spec_int ("scale-factor", NULL, NULL,
0, G_MAXINT,
1, G_MAXINT,
1,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
/**
* GdkMonitor:scale: (attributes org.gtk.Property.get=gdk_monitor_get_scale)
*
* The scale of the monitor.
*
* Since: 4.14
*/
props[PROP_SCALE] =
g_param_spec_double ("scale", NULL, NULL,
1., G_MAXDOUBLE, 1.,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
/**
* GdkMonitor:geometry: (attributes org.gtk.Property.get=gdk_monitor_get_geometry)
*
@ -346,7 +370,7 @@ gdk_monitor_get_display (GdkMonitor *monitor)
* display coordinate space.
*
* The returned geometry is in ”application pixels”, not in
* ”device pixels” (see [method@Gdk.Monitor.get_scale_factor]).
* ”device pixels” (see [method@Gdk.Monitor.get_scale]).
*/
void
gdk_monitor_get_geometry (GdkMonitor *monitor,
@ -472,6 +496,29 @@ gdk_monitor_get_scale_factor (GdkMonitor *monitor)
return monitor->scale_factor;
}
/**
* gdk_monitor_get_scale: (attributes org.gtk.Method.get_property=scale)
* @monitor: a `GdkMonitor`
*
* Gets the internal scale factor that maps from monitor coordinates
* to device pixels.
*
* This can be used if you want to create pixel based data for a
* particular monitor, but most of the time you’re drawing to a surface
* where it is better to use [method@Gdk.Surface.get_scale] instead.
*
* Returns: the scale
*
* Since: 4.14
*/
double
gdk_monitor_get_scale (GdkMonitor *monitor)
{
g_return_val_if_fail (GDK_IS_MONITOR (monitor), 1.);
return monitor->scale;
}
/**
* gdk_monitor_get_refresh_rate: (attributes org.gtk.Method.get_property=refresh-rate)
* @monitor: a `GdkMonitor`
@ -583,12 +630,37 @@ void
gdk_monitor_set_scale_factor (GdkMonitor *monitor,
int scale_factor)
{
g_return_if_fail (scale_factor >= 1);
if (monitor->scale_set)
return;
if (monitor->scale_factor == scale_factor)
return;
monitor->scale_factor = scale_factor;
monitor->scale = scale_factor;
g_object_notify (G_OBJECT (monitor), "scale-factor");
g_object_notify (G_OBJECT (monitor), "scale");
}
void
gdk_monitor_set_scale (GdkMonitor *monitor,
double scale)
{
g_return_if_fail (scale >= 1.);
monitor->scale_set = TRUE;
if (monitor->scale == scale)
return;
monitor->scale = scale;
monitor->scale_factor = (int) ceil (scale);
g_object_notify (G_OBJECT (monitor), "scale");
g_object_notify (G_OBJECT (monitor), "scale-factor");
}
void

2
gdk/gdkmonitor.h
View File

@ -77,6 +77,8 @@ GDK_AVAILABLE_IN_ALL
const char * gdk_monitor_get_connector (GdkMonitor *monitor);
GDK_AVAILABLE_IN_ALL
int gdk_monitor_get_scale_factor (GdkMonitor *monitor);
GDK_AVAILABLE_IN_4_14
double gdk_monitor_get_scale (GdkMonitor *monitor);
GDK_AVAILABLE_IN_ALL
int gdk_monitor_get_refresh_rate (GdkMonitor *monitor);
GDK_AVAILABLE_IN_ALL

6
gdk/gdkmonitorprivate.h
View File

@ -44,6 +44,8 @@ struct _GdkMonitor {
int refresh_rate;
GdkSubpixelLayout subpixel_layout;
gboolean valid;
double scale;
gboolean scale_set;
};
struct _GdkMonitorClass {
@ -64,7 +66,9 @@ void gdk_monitor_set_physical_size (GdkMonitor *monitor,
int width_mm,
int height_mm);
void gdk_monitor_set_scale_factor (GdkMonitor *monitor,
int scale);
int scale_factor);
void gdk_monitor_set_scale (GdkMonitor *monitor,
double scale);
void gdk_monitor_set_refresh_rate (GdkMonitor *monitor,
int refresh_rate);
void gdk_monitor_set_subpixel_layout (GdkMonitor *monitor,

20
gdk/wayland/gdkdisplay-wayland.c
View File

@ -2435,6 +2435,7 @@ apply_monitor_change (GdkWaylandMonitor *monitor)
GdkRectangle logical_geometry;
gboolean needs_scaling = FALSE;
double scale;
if (monitor->xdg_output_done)
{
@ -2451,16 +2452,25 @@ apply_monitor_change (GdkWaylandMonitor *monitor)
if (needs_scaling)
{
int scale = gdk_monitor_get_scale_factor (GDK_MONITOR (monitor));
logical_geometry.y /= scale;
logical_geometry.x /= scale;
logical_geometry.width /= scale;
logical_geometry.height /= scale;
int scale_factor = gdk_monitor_get_scale_factor (GDK_MONITOR (monitor));
logical_geometry.y /= scale_factor;
logical_geometry.x /= scale_factor;
logical_geometry.width /= scale_factor;
logical_geometry.height /= scale_factor;
scale = scale_factor;
}
else
{
scale = MAX (monitor->output_geometry.width / (double) logical_geometry.width,
monitor->output_geometry.height / (double) logical_geometry.height);
}
gdk_monitor_set_geometry (GDK_MONITOR (monitor), &logical_geometry);
gdk_monitor_set_connector (GDK_MONITOR (monitor), monitor->name);
gdk_monitor_set_description (GDK_MONITOR (monitor), monitor->description);
gdk_monitor_set_scale (GDK_MONITOR (monitor), scale);
monitor->wl_output_done = FALSE;
monitor->xdg_output_done = FALSE;