[Spice-devel] [PATCH 1/2] Add ability to get SpiceDisplay resolution

Jonathon Jongsma jjongsma at redhat.com
Mon Nov 4 19:08:02 CET 2013


Add spice_display_get_monitor_config() to get the current configuration of the
display.
---
 doc/reference/spice-gtk-sections.txt |  2 ++
 gtk/channel-display.c                |  2 +-
 gtk/channel-display.h                |  9 ++++++++
 gtk/map-file                         |  1 +
 gtk/spice-gtk-sym-file               |  1 +
 gtk/spice-widget.c                   | 44 ++++++++++++++++++++++++++----------
 gtk/spice-widget.h                   |  2 ++
 7 files changed, 48 insertions(+), 13 deletions(-)

diff --git a/doc/reference/spice-gtk-sections.txt b/doc/reference/spice-gtk-sections.txt
index 8d61aa9..9d8551b 100644
--- a/doc/reference/spice-gtk-sections.txt
+++ b/doc/reference/spice-gtk-sections.txt
@@ -146,6 +146,7 @@ SpiceAudioPrivate
 <TITLE>SpiceDisplayChannel</TITLE>
 SpiceDisplayChannel
 SpiceDisplayChannelClass
+SpiceDisplayMonitorConfig
 <SUBSECTION Standard>
 SPICE_DISPLAY_CHANNEL
 SPICE_IS_DISPLAY_CHANNEL
@@ -352,6 +353,7 @@ spice_display_set_grab_keys
 spice_display_get_grab_keys
 spice_display_send_keys
 spice_display_get_pixbuf
+spice_display_get_monitor_config
 <SUBSECTION>
 SpiceGrabSequence
 spice_grab_sequence_new
diff --git a/gtk/channel-display.c b/gtk/channel-display.c
index a57453f..030679b 100644
--- a/gtk/channel-display.c
+++ b/gtk/channel-display.c
@@ -262,7 +262,7 @@ static void spice_display_channel_class_init(SpiceDisplayChannelClass *klass)
     /**
      * SpiceDisplayChannel:monitors:
      *
-     * Current monitors configuration.
+     * Current monitors configuration. An array of #SpiceDisplayMonitorConfig
      *
      * Since: 0.13
      */
diff --git a/gtk/channel-display.h b/gtk/channel-display.h
index 88e60d9..4a5428e 100644
--- a/gtk/channel-display.h
+++ b/gtk/channel-display.h
@@ -33,6 +33,15 @@ typedef struct _SpiceDisplayChannel SpiceDisplayChannel;
 typedef struct _SpiceDisplayChannelClass SpiceDisplayChannelClass;
 typedef struct _SpiceDisplayChannelPrivate SpiceDisplayChannelPrivate;
 
+/**
+ * SpiceDisplayMonitorConfig:
+ * @id: the id of the monitor
+ * @surface_id: the surface id of the monitor
+ * @x: the position of the monitor on the x axis
+ * @y: the position of the monitor on the y axis
+ * @width: the width of the monitor
+ * @height: the height of the monitor
+ */
 typedef struct _SpiceDisplayMonitorConfig SpiceDisplayMonitorConfig;
 struct _SpiceDisplayMonitorConfig {
     guint id;
diff --git a/gtk/map-file b/gtk/map-file
index 368b44f..d093f7c 100644
--- a/gtk/map-file
+++ b/gtk/map-file
@@ -32,6 +32,7 @@ spice_display_new_with_monitor;
 spice_display_paste_from_guest;
 spice_display_send_keys;
 spice_display_set_grab_keys;
+spice_display_get_monitor_config;
 spice_error_get_type;
 spice_get_option_group;
 spice_grab_sequence_as_string;
diff --git a/gtk/spice-gtk-sym-file b/gtk/spice-gtk-sym-file
index 1574e07..8d3c9a0 100644
--- a/gtk/spice-gtk-sym-file
+++ b/gtk/spice-gtk-sym-file
@@ -9,6 +9,7 @@ spice_display_new_with_monitor
 spice_display_paste_from_guest
 spice_display_send_keys
 spice_display_set_grab_keys
+spice_display_get_monitor_config
 spice_grab_sequence_as_string
 spice_grab_sequence_copy
 spice_grab_sequence_free
diff --git a/gtk/spice-widget.c b/gtk/spice-widget.c
index d39ff59..8b5fa59 100644
--- a/gtk/spice-widget.c
+++ b/gtk/spice-widget.c
@@ -278,25 +278,47 @@ static gint get_display_id(SpiceDisplay *display)
     return d->channel_id;
 }
 
-static void update_monitor_area(SpiceDisplay *display)
+/**
+ * spice_display_get_monitor_config:
+ * @display: the display widget
+ *
+ * Gets the monitor configuration for the display, from which you can determine
+ * the current position and resolution of the monitor
+ *
+ * Returns (transfer none): the monitor configuration for the display
+ **/
+const SpiceDisplayMonitorConfig* spice_display_get_monitor_config(SpiceDisplay *display)
 {
-    SpiceDisplayPrivate *d = SPICE_DISPLAY_GET_PRIVATE(display);
-    SpiceDisplayMonitorConfig *cfg, *c = NULL;
-    GArray *monitors = NULL;
     int i;
+    GArray *monitors = NULL;
+    SpiceDisplayPrivate *d = NULL;
+    SpiceDisplayMonitorConfig* c = NULL;
 
-    SPICE_DEBUG("update monitor area %d:%d", d->channel_id, d->monitor_id);
-    if (d->monitor_id < 0)
-        goto whole;
+    g_return_val_if_fail(SPICE_IS_DISPLAY(display), NULL);
+
+    d = SPICE_DISPLAY_GET_PRIVATE(display);
+    g_return_val_if_fail(d->monitor_id >= 0, NULL);
 
     g_object_get(d->display, "monitors", &monitors, NULL);
     for (i = 0; monitors != NULL && i < monitors->len; i++) {
-        cfg = &g_array_index(monitors, SpiceDisplayMonitorConfig, i);
+        SpiceDisplayMonitorConfig *cfg = &g_array_index(monitors,
+                                                        SpiceDisplayMonitorConfig,
+                                                        i);
         if (cfg->id == d->monitor_id) {
-           c = cfg;
-           break;
+            c = cfg;
+            break;
         }
     }
+
+    g_clear_pointer(&monitors, g_array_unref);
+    return c;
+}
+
+static void update_monitor_area(SpiceDisplay *display)
+{
+    SpiceDisplayPrivate *d = SPICE_DISPLAY_GET_PRIVATE(display);
+    const SpiceDisplayMonitorConfig *c = spice_display_get_monitor_config(display);
+
     if (c == NULL) {
         SPICE_DEBUG("update monitor: no monitor %d", d->monitor_id);
         set_monitor_ready(display, false);
@@ -318,11 +340,9 @@ static void update_monitor_area(SpiceDisplay *display)
                                   c->x, c->y, c->width, c->height, FALSE);
 
     update_area(display, c->x, c->y, c->width, c->height);
-    g_clear_pointer(&monitors, g_array_unref);
     return;
 
 whole:
-    g_clear_pointer(&monitors, g_array_unref);
     /* by display whole surface */
     update_area(display, 0, 0, d->width, d->height);
     set_monitor_ready(display, true);
diff --git a/gtk/spice-widget.h b/gtk/spice-widget.h
index d239ed2..f7cfbf1 100644
--- a/gtk/spice-widget.h
+++ b/gtk/spice-widget.h
@@ -80,6 +80,8 @@ void spice_display_send_keys(SpiceDisplay *display, const guint *keyvals,
                              int nkeyvals, SpiceDisplayKeyEvent kind);
 GdkPixbuf *spice_display_get_pixbuf(SpiceDisplay *display);
 
+const SpiceDisplayMonitorConfig* spice_display_get_monitor_config(SpiceDisplay *display);
+
 #ifndef SPICE_DISABLE_DEPRECATED
 SPICE_DEPRECATED_FOR(spice_gtk_session_copy_to_guest)
 void spice_display_copy_to_guest(SpiceDisplay *display);
-- 
1.8.3.1



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