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Implement GimpItem's transform methods 

Add implementations for GimpItem::translate(), scale(), resize(),
flip(), rotate() and transform(). Simply transform all children, the
group layer will automatically update itself. Also transform the layer
mask.
This commit is contained in:
Michael Natterer 2009-08-24 19:33:29 +02:00
parent c8c6d77c35
commit 9fd204977d
1 changed files with 212 additions and 4 deletions
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216
app/core/gimpgrouplayer.c
View File

@ -66,6 +66,42 @@ static GimpContainer * gimp_group_layer_get_children (GimpViewable *viewable)
static GimpItem * gimp_group_layer_duplicate (GimpItem *item,
GType new_type);
static void gimp_group_layer_translate (GimpItem *item,
gint offset_x,
gint offset_y,
gboolean push_undo);
static void gimp_group_layer_scale (GimpItem *item,
gint new_width,
gint new_height,
gint new_offset_x,
gint new_offset_y,
GimpInterpolationType interp_type,
GimpProgress *progress);
static void gimp_group_layer_resize (GimpItem *item,
GimpContext *context,
gint new_width,
gint new_height,
gint offset_x,
gint offset_y);
static void gimp_group_layer_flip (GimpItem *item,
GimpContext *context,
GimpOrientationType flip_type,
gdouble axis,
gboolean clip_result);
static void gimp_group_layer_rotate (GimpItem *item,
GimpContext *context,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gboolean clip_result);
static void gimp_group_layer_transform (GimpItem *item,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
gint recursion_level,
GimpTransformResize clip_result,
GimpProgress *progress);
static GeglNode * gimp_group_layer_get_graph (GimpProjectable *projectable);
static GList * gimp_group_layer_get_layers (GimpProjectable *projectable);
@ -124,6 +160,12 @@ gimp_group_layer_class_init (GimpGroupLayerClass *klass)
viewable_class->get_children = gimp_group_layer_get_children;
item_class->duplicate = gimp_group_layer_duplicate;
item_class->translate = gimp_group_layer_translate;
item_class->scale = gimp_group_layer_scale;
item_class->resize = gimp_group_layer_resize;
item_class->flip = gimp_group_layer_flip;
item_class->rotate = gimp_group_layer_rotate;
item_class->transform = gimp_group_layer_transform;
item_class->default_name = _("Group Layer");
item_class->rename_desc = _("Rename Group Layer");
@ -311,6 +353,175 @@ gimp_group_layer_duplicate (GimpItem *item,
return new_item;
}
static void
gimp_group_layer_translate (GimpItem *item,
gint offset_x,
gint offset_y,
gboolean push_undo)
{
GimpGroupLayer *group = GIMP_GROUP_LAYER (item);
GimpLayerMask *mask;
GList *list;
for (list = gimp_item_stack_get_item_iter (GIMP_ITEM_STACK (group->children));
list;
list = g_list_next (list))
{
GimpItem *child = list->data;
gimp_item_translate (child, offset_x, offset_y, push_undo);
}
mask = gimp_layer_get_mask (GIMP_LAYER (group));
if (mask)
{
gint off_x, off_y;
gimp_item_get_offset (item, &off_x, &off_y);
gimp_item_set_offset (GIMP_ITEM (mask), off_x, off_y);
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (mask));
}
}
static void
gimp_group_layer_scale (GimpItem *item,
gint new_width,
gint new_height,
gint new_offset_x,
gint new_offset_y,
GimpInterpolationType interpolation_type,
GimpProgress *progress)
{
GimpGroupLayer *group = GIMP_GROUP_LAYER (item);
GimpLayerMask *mask;
GList *list;
for (list = gimp_item_stack_get_item_iter (GIMP_ITEM_STACK (group->children));
list;
list = g_list_next (list))
{
GimpItem *child = list->data;
gimp_item_scale (child,
new_width, new_height,
new_offset_x, new_offset_y,
interpolation_type, progress);
}
mask = gimp_layer_get_mask (GIMP_LAYER (group));
if (mask)
gimp_item_scale (GIMP_ITEM (mask),
new_width, new_height,
new_offset_x, new_offset_y,
interpolation_type, progress);
}
static void
gimp_group_layer_resize (GimpItem *item,
GimpContext *context,
gint new_width,
gint new_height,
gint offset_x,
gint offset_y)
{
/* FIXME */
}
static void
gimp_group_layer_flip (GimpItem *item,
GimpContext *context,
GimpOrientationType flip_type,
gdouble axis,
gboolean clip_result)
{
GimpGroupLayer *group = GIMP_GROUP_LAYER (item);
GimpLayerMask *mask;
GList *list;
for (list = gimp_item_stack_get_item_iter (GIMP_ITEM_STACK (group->children));
list;
list = g_list_next (list))
{
GimpItem *child = list->data;
gimp_item_flip (child, context,
flip_type, axis, clip_result);
}
mask = gimp_layer_get_mask (GIMP_LAYER (group));
if (mask)
gimp_item_flip (GIMP_ITEM (mask), context,
flip_type, axis, clip_result);
}
static void
gimp_group_layer_rotate (GimpItem *item,
GimpContext *context,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gboolean clip_result)
{
GimpGroupLayer *group = GIMP_GROUP_LAYER (item);
GimpLayerMask *mask;
GList *list;
for (list = gimp_item_stack_get_item_iter (GIMP_ITEM_STACK (group->children));
list;
list = g_list_next (list))
{
GimpItem *child = list->data;
gimp_item_rotate (child, context,
rotate_type, center_x, center_y, clip_result);
}
mask = gimp_layer_get_mask (GIMP_LAYER (group));
if (mask)
gimp_item_rotate (GIMP_ITEM (mask), context,
rotate_type, center_x, center_y, clip_result);
}
static void
gimp_group_layer_transform (GimpItem *item,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
gint recursion_level,
GimpTransformResize clip_result,
GimpProgress *progress)
{
GimpGroupLayer *group = GIMP_GROUP_LAYER (item);
GimpLayerMask *mask;
GList *list;
for (list = gimp_item_stack_get_item_iter (GIMP_ITEM_STACK (group->children));
list;
list = g_list_next (list))
{
GimpItem *child = list->data;
gimp_item_transform (child, context,
matrix, direction,
interpolation_type, recursion_level,
clip_result, progress);
}
mask = gimp_layer_get_mask (GIMP_LAYER (group));
if (mask)
gimp_item_transform (GIMP_ITEM (mask), context,
matrix, direction,
interpolation_type, recursion_level,
clip_result, progress);
}
static GeglNode *
gimp_group_layer_get_graph (GimpProjectable *projectable)
{
@ -444,10 +655,7 @@ gimp_group_layer_update_size (GimpGroupLayer *group)
}
else
{
gimp_item_translate (GIMP_ITEM (group),
x - gimp_item_get_offset_x (GIMP_ITEM (group)),
y - gimp_item_get_offset_y (GIMP_ITEM (group)),
FALSE);
gimp_item_set_offset (GIMP_ITEM (group), x, y);
}
}
}