mirror of
https://gitlab.gnome.org/GNOME/libmks.git
synced 2024-12-22 05:35:21 +00:00
lib: remove use of GtkPicture
We want a bit more control over things than we can get with GtkPicture so do the snapshot/measure internally. This allows us to know where the picture is to be allocated so that we can translate pointer events to the location within the console.
This commit is contained in:
Christian Hergert
parent
b626904171
commit
a8505e1245
@ -37,10 +37,10 @@ typedef struct
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*/
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MksScreen *screen;
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/* The picture widget in our template which is rendering the screens
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* painable when available.
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*/
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GtkPicture *picture;
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/* The paintable containing the screen content */
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GdkPaintable *paintable;
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gulong invalidate_contents_handler;
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gulong invalidate_size_handler;
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/* Used to update the cursor position by calling into the MksMouse
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* API using move_to/move_by.
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@ -67,7 +67,6 @@ typedef struct
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enum {
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PROP_0,
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PROP_CONTENT_FIT,
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PROP_SCREEN,
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N_PROPS
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};
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@ -76,6 +75,98 @@ G_DEFINE_TYPE_WITH_PRIVATE (MksDisplay, mks_display, GTK_TYPE_WIDGET)
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static GParamSpec *properties [N_PROPS];
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static void
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mks_display_get_paintable_area (MksDisplay *self,
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graphene_rect_t *area)
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{
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MksDisplayPrivate *priv = mks_display_get_instance_private (self);
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int x, y, width, height;
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double display_ratio;
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double ratio;
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double w, h;
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g_assert (MKS_IS_DISPLAY (self));
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g_assert (area != NULL);
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width = gtk_widget_get_width (GTK_WIDGET (self));
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height = gtk_widget_get_height (GTK_WIDGET (self));
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display_ratio = (double)width / (double)height;
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ratio = gdk_paintable_get_intrinsic_aspect_ratio (priv->paintable);
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if (ratio > display_ratio)
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{
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w = width;
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h = width / ratio;
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}
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else
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{
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w = height * ratio;
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h = height;
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}
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x = (width - ceil (w)) / 2;
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y = floor(height - ceil (h)) / 2;
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*area = GRAPHENE_RECT_INIT (x, y, w, h);
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}
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static void
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mks_display_invalidate_contents_cb (MksDisplay *self,
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GdkPaintable *paintable)
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{
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g_assert (MKS_IS_DISPLAY (self));
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g_assert (GDK_IS_PAINTABLE (paintable));
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gtk_widget_queue_draw (GTK_WIDGET (self));
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}
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static void
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mks_display_invalidate_size_cb (MksDisplay *self,
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GdkPaintable *paintable)
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{
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g_assert (MKS_IS_DISPLAY (self));
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g_assert (GDK_IS_PAINTABLE (paintable));
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gtk_widget_queue_resize (GTK_WIDGET (self));
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}
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static void
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mks_display_set_paintable (MksDisplay *self,
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GdkPaintable *paintable)
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{
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MksDisplayPrivate *priv = mks_display_get_instance_private (self);
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g_assert (MKS_IS_DISPLAY (self));
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g_assert (!paintable || GDK_IS_PAINTABLE (paintable));
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if (priv->paintable == paintable)
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return;
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if (priv->paintable != NULL)
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{
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g_clear_signal_handler (&priv->invalidate_contents_handler, priv->paintable);
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g_clear_signal_handler (&priv->invalidate_size_handler, priv->paintable);
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g_clear_object (&priv->paintable);
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}
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if (paintable != NULL)
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{
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priv->paintable = g_object_ref (paintable);
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priv->invalidate_contents_handler =
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g_signal_connect_object (paintable,
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"invalidate-contents",
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G_CALLBACK (mks_display_invalidate_contents_cb),
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self,
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G_CONNECT_SWAPPED);
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priv->invalidate_size_handler =
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g_signal_connect_object (paintable,
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"invalidate-size",
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G_CALLBACK (mks_display_invalidate_size_cb),
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self,
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G_CONNECT_SWAPPED);
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}
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}
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static void
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mks_display_translate_keycode (MksDisplay *self,
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guint keyval,
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@ -178,13 +269,36 @@ mks_display_key_key_released_cb (MksDisplay *self,
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g_object_ref (self));
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}
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static void
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static gboolean
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mks_display_translate_coordinate (MksDisplay *self,
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double *x,
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double *y)
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{
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MksDisplayPrivate *priv = mks_display_get_instance_private (self);
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graphene_rect_t area;
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int width;
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int height;
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g_assert (MKS_IS_DISPLAY (self));
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if (priv->paintable == NULL)
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return FALSE;
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mks_display_get_paintable_area (self, &area);
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if (!graphene_rect_contains_point (&area, &GRAPHENE_POINT_INIT (*x, *y)))
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return FALSE;
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*x -= area.origin.x;
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*y -= area.origin.y;
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width = gdk_paintable_get_intrinsic_width (priv->paintable);
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height = gdk_paintable_get_intrinsic_height (priv->paintable);
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*x = *x / area.size.width * width;
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*y = *y / area.size.height * height;
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return TRUE;
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}
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static void
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@ -276,8 +390,8 @@ mks_display_motion_enter_cb (MksDisplay *self,
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g_assert (MKS_IS_DISPLAY (self));
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g_assert (GTK_IS_EVENT_CONTROLLER_MOTION (motion));
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mks_display_translate_coordinate (self, &x, &y);
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mks_display_motion (self, x, y);
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if (mks_display_translate_coordinate (self, &x, &y))
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mks_display_motion (self, x, y);
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}
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static void
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@ -289,8 +403,8 @@ mks_display_motion_motion_cb (MksDisplay *self,
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g_assert (MKS_IS_DISPLAY (self));
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g_assert (GTK_IS_EVENT_CONTROLLER_MOTION (motion));
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mks_display_translate_coordinate (self, &x, &y);
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mks_display_motion (self, x, y);
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if (mks_display_translate_coordinate (self, &x, &y))
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mks_display_motion (self, x, y);
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}
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static void
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@ -429,7 +543,7 @@ mks_display_attach_cb (GObject *object,
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if (priv->screen != screen)
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return;
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gtk_picture_set_paintable (priv->picture, paintable);
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mks_display_set_paintable (self, paintable);
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}
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static void
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@ -457,7 +571,8 @@ mks_display_disconnect (MksDisplay *self)
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g_assert (MKS_IS_DISPLAY (self));
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g_assert (priv->screen != NULL);
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gtk_picture_set_paintable (priv->picture, NULL);
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mks_display_set_paintable (self, NULL);
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g_clear_object (&priv->screen);
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}
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@ -470,11 +585,88 @@ mks_display_dispose (GObject *object)
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if (priv->screen != NULL)
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mks_display_disconnect (self);
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g_clear_pointer ((GtkWidget **)&priv->picture, gtk_widget_unparent);
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G_OBJECT_CLASS (mks_display_parent_class)->dispose (object);
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}
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static void
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mks_display_snapshot (GtkWidget *widget,
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GtkSnapshot *snapshot)
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{
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MksDisplay *self = (MksDisplay *)widget;
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MksDisplayPrivate *priv = mks_display_get_instance_private (self);
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graphene_rect_t area;
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if (priv->paintable == NULL)
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return;
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mks_display_get_paintable_area (self, &area);
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gtk_snapshot_save (snapshot);
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gtk_snapshot_translate (snapshot, &area.origin);
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gdk_paintable_snapshot (priv->paintable, snapshot, area.size.width, area.size.height);
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gtk_snapshot_restore (snapshot);
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}
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static GtkSizeRequestMode
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mks_display_get_request_mode (GtkWidget *widget)
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{
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return GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH;
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}
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static void
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mks_display_measure (GtkWidget *widget,
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GtkOrientation orientation,
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int for_size,
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int *minimum,
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int *natural,
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int *minimum_baseline,
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int *natural_baseline)
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{
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MksDisplay *self = (MksDisplay *)widget;
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MksDisplayPrivate *priv = mks_display_get_instance_private (self);
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double min_width, min_height, nat_width, nat_height;
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int default_width;
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int default_height;
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g_assert (MKS_IS_DISPLAY (self));
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if (priv->paintable == NULL || for_size == 0)
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{
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*minimum = 0;
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*natural = 0;
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return;
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}
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default_width = gdk_paintable_get_intrinsic_width (priv->paintable);
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default_height = gdk_paintable_get_intrinsic_width (priv->paintable);
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gdk_paintable_compute_concrete_size (priv->paintable,
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0, 0,
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default_width, default_height,
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&min_width, &min_height);
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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{
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gdk_paintable_compute_concrete_size (priv->paintable,
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0,
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for_size < 0 ? 0 : for_size,
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default_width, default_height,
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&nat_width, &nat_height);
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*minimum = ceil (min_width);
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*natural = ceil (nat_width);
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}
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else
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{
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gdk_paintable_compute_concrete_size (priv->paintable,
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for_size < 0 ? 0 : for_size,
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0,
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default_width, default_height,
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&nat_width, &nat_height);
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*minimum = ceil (min_height);
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*natural = ceil (nat_height);
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}
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}
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static void
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mks_display_get_property (GObject *object,
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guint prop_id,
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@ -485,10 +677,6 @@ mks_display_get_property (GObject *object,
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switch (prop_id)
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{
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case PROP_CONTENT_FIT:
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g_value_set_enum (value, mks_display_get_content_fit (self));
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break;
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case PROP_SCREEN:
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g_value_set_object (value, mks_display_get_screen (self));
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break;
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@ -508,10 +696,6 @@ mks_display_set_property (GObject *object,
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switch (prop_id)
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{
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case PROP_CONTENT_FIT:
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mks_display_set_content_fit (self, g_value_get_enum (value));
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break;
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case PROP_SCREEN:
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mks_display_set_screen (self, g_value_get_object (value));
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break;
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@ -531,11 +715,9 @@ mks_display_class_init (MksDisplayClass *klass)
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object_class->get_property = mks_display_get_property;
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object_class->set_property = mks_display_set_property;
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properties [PROP_CONTENT_FIT] =
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g_param_spec_enum ("content-fit", NULL, NULL,
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GTK_TYPE_CONTENT_FIT,
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GTK_CONTENT_FIT_SCALE_DOWN,
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(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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widget_class->get_request_mode = mks_display_get_request_mode;
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widget_class->measure = mks_display_measure;
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widget_class->snapshot = mks_display_snapshot;
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properties[PROP_SCREEN] =
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g_param_spec_object ("screen", NULL, NULL,
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@ -550,7 +732,6 @@ mks_display_class_init (MksDisplayClass *klass)
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gtk_widget_class_bind_template_child_private (widget_class, MksDisplay, click);
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gtk_widget_class_bind_template_child_private (widget_class, MksDisplay, key);
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gtk_widget_class_bind_template_child_private (widget_class, MksDisplay, motion);
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gtk_widget_class_bind_template_child_private (widget_class, MksDisplay, picture);
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gtk_widget_class_bind_template_callback (widget_class, mks_display_click_pressed_cb);
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gtk_widget_class_bind_template_callback (widget_class, mks_display_click_released_cb);
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gtk_widget_class_bind_template_callback (widget_class, mks_display_motion_enter_cb);
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@ -611,24 +792,3 @@ mks_display_set_screen (MksDisplay *self,
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g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SCREEN]);
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}
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GtkContentFit
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mks_display_get_content_fit (MksDisplay *self)
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{
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MksDisplayPrivate *priv = mks_display_get_instance_private (self);
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g_return_val_if_fail (MKS_IS_DISPLAY (self), 0);
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return gtk_picture_get_content_fit (priv->picture);
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}
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void
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mks_display_set_content_fit (MksDisplay *self,
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GtkContentFit content_fit)
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{
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MksDisplayPrivate *priv = mks_display_get_instance_private (self);
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g_return_if_fail (MKS_IS_DISPLAY (self));
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gtk_picture_set_content_fit (priv->picture, content_fit);
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}
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@ -41,16 +41,11 @@ struct _MksDisplayClass
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};
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MKS_AVAILABLE_IN_ALL
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GtkWidget *mks_display_new (void);
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GtkWidget *mks_display_new (void);
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MKS_AVAILABLE_IN_ALL
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MksScreen *mks_display_get_screen (MksDisplay *self);
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MksScreen *mks_display_get_screen (MksDisplay *self);
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MKS_AVAILABLE_IN_ALL
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void mks_display_set_screen (MksDisplay *self,
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MksScreen *screen);
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MKS_AVAILABLE_IN_ALL
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GtkContentFit mks_display_get_content_fit (MksDisplay *self);
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MKS_AVAILABLE_IN_ALL
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void mks_display_set_content_fit (MksDisplay *self,
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GtkContentFit content_fit);
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void mks_display_set_screen (MksDisplay *self,
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MksScreen *screen);
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G_END_DECLS
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@ -1,32 +1,26 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<interface>
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<template class="MksDisplay" parent="GtkWidget">
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<property name="focusable">false</property>
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<property name="focusable">true</property>
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<child>
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<object class="GtkPicture" id="picture">
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<property name="content-fit">scale-down</property>
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<property name="focusable">true</property>
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<child>
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<object class="GtkEventControllerMotion" id="motion">
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<signal name="enter" handler="mks_display_motion_enter_cb" swapped="true"/>
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<signal name="leave" handler="mks_display_motion_leave_cb" swapped="true"/>
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<signal name="motion" handler="mks_display_motion_motion_cb" swapped="true"/>
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</object>
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</child>
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<child>
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<object class="GtkGestureClick" id="click">
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<property name="button">0</property>
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<property name="exclusive">true</property>
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<signal name="pressed" handler="mks_display_click_pressed_cb" swapped="true"/>
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<signal name="released" handler="mks_display_click_released_cb" swapped="true"/>
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</object>
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</child>
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<child>
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<object class="GtkEventControllerKey" id="key">
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<signal name="key-pressed" handler="mks_display_key_key_pressed_cb" swapped="true"/>
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<signal name="key-released" handler="mks_display_key_key_released_cb" swapped="true"/>
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</object>
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</child>
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<object class="GtkEventControllerMotion" id="motion">
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<signal name="enter" handler="mks_display_motion_enter_cb" swapped="true"/>
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<signal name="leave" handler="mks_display_motion_leave_cb" swapped="true"/>
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<signal name="motion" handler="mks_display_motion_motion_cb" swapped="true"/>
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</object>
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</child>
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<child>
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<object class="GtkGestureClick" id="click">
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<property name="button">0</property>
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<property name="exclusive">true</property>
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<signal name="pressed" handler="mks_display_click_pressed_cb" swapped="true"/>
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<signal name="released" handler="mks_display_click_released_cb" swapped="true"/>
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</object>
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</child>
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<child>
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<object class="GtkEventControllerKey" id="key">
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<signal name="key-pressed" handler="mks_display_key_key_pressed_cb" swapped="true"/>
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<signal name="key-released" handler="mks_display_key_key_released_cb" swapped="true"/>
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</object>
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</child>
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</template>
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