From 179fa413b047bede6e32109e2ce82437c5fb8d34 Mon Sep 17 00:00:00 2001 From: MenTaLguY Date: Mon, 16 Jan 2006 02:36:01 +0000 Subject: moving trunk for module inkscape (bzr r1) --- src/sp-mask.cpp | 375 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 375 insertions(+) create mode 100644 src/sp-mask.cpp (limited to 'src/sp-mask.cpp') diff --git a/src/sp-mask.cpp b/src/sp-mask.cpp new file mode 100644 index 000000000..1f2d531b7 --- /dev/null +++ b/src/sp-mask.cpp @@ -0,0 +1,375 @@ +#define __SP_MASK_C__ + +/* + * SVG implementation + * + * Authors: + * Lauris Kaplinski + * + * Copyright (C) 2003 authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + + +#include "display/nr-arena.h" +#include "display/nr-arena-group.h" +#include + +#include "enums.h" +#include "attributes.h" +#include "document.h" +#include "sp-item.h" + +#include "sp-mask.h" + +struct SPMaskView { + SPMaskView *next; + unsigned int key; + NRArenaItem *arenaitem; + NRRect bbox; +}; + +static void sp_mask_class_init (SPMaskClass *klass); +static void sp_mask_init (SPMask *mask); + +static void sp_mask_build (SPObject *object, SPDocument *document, Inkscape::XML::Node *repr); +static void sp_mask_release (SPObject * object); +static void sp_mask_set (SPObject *object, unsigned int key, const gchar *value); +static void sp_mask_child_added (SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref); +static void sp_mask_update (SPObject *object, SPCtx *ctx, guint flags); +static void sp_mask_modified (SPObject *object, guint flags); +static Inkscape::XML::Node *sp_mask_write (SPObject *object, Inkscape::XML::Node *repr, guint flags); + +SPMaskView *sp_mask_view_new_prepend (SPMaskView *list, unsigned int key, NRArenaItem *arenaitem); +SPMaskView *sp_mask_view_list_remove (SPMaskView *list, SPMaskView *view); + +static SPObjectGroupClass *parent_class; + +GType +sp_mask_get_type (void) +{ + static GType type = 0; + if (!type) { + GTypeInfo info = { + sizeof (SPMaskClass), + NULL, NULL, + (GClassInitFunc) sp_mask_class_init, + NULL, NULL, + sizeof (SPMask), + 16, + (GInstanceInitFunc) sp_mask_init, + NULL, /* value_table */ + }; + type = g_type_register_static (SP_TYPE_OBJECTGROUP, "SPMask", &info, (GTypeFlags)0); + } + return type; +} + +static void +sp_mask_class_init (SPMaskClass *klass) +{ + parent_class = (SPObjectGroupClass*) g_type_class_ref (SP_TYPE_OBJECTGROUP); + + SPObjectClass *sp_object_class = (SPObjectClass *) klass; + sp_object_class->build = sp_mask_build; + sp_object_class->release = sp_mask_release; + sp_object_class->set = sp_mask_set; + sp_object_class->child_added = sp_mask_child_added; + sp_object_class->update = sp_mask_update; + sp_object_class->modified = sp_mask_modified; + sp_object_class->write = sp_mask_write; +} + +static void +sp_mask_init (SPMask *mask) +{ + mask->maskUnits_set = FALSE; + mask->maskUnits = SP_CONTENT_UNITS_OBJECTBOUNDINGBOX; + + mask->maskUnits_set = FALSE; + mask->maskUnits = SP_CONTENT_UNITS_USERSPACEONUSE; + + mask->display = NULL; +} + +static void +sp_mask_build (SPObject *object, SPDocument *document, Inkscape::XML::Node *repr) +{ + if (((SPObjectClass *) parent_class)->build) { + ((SPObjectClass *) parent_class)->build (object, document, repr); + } + + sp_object_read_attr (object, "maskUnits"); + sp_object_read_attr (object, "maskContentUnits"); + + /* Register ourselves */ + sp_document_add_resource (document, "mask", object); +} + +static void +sp_mask_release (SPObject * object) +{ + if (SP_OBJECT_DOCUMENT (object)) { + /* Unregister ourselves */ + sp_document_remove_resource (SP_OBJECT_DOCUMENT (object), "mask", object); + } + + SPMask *cp = SP_MASK (object); + while (cp->display) { + /* We simply unref and let item to manage this in handler */ + cp->display = sp_mask_view_list_remove (cp->display, cp->display); + } + + if (((SPObjectClass *) (parent_class))->release) { + ((SPObjectClass *) parent_class)->release (object); + } +} + +static void +sp_mask_set (SPObject *object, unsigned int key, const gchar *value) +{ + SPMask *mask = SP_MASK (object); + + switch (key) { + case SP_ATTR_MASKUNITS: + mask->maskUnits = SP_CONTENT_UNITS_OBJECTBOUNDINGBOX; + mask->maskUnits_set = FALSE; + if (value) { + if (!strcmp (value, "userSpaceOnUse")) { + mask->maskUnits = SP_CONTENT_UNITS_USERSPACEONUSE; + mask->maskUnits_set = TRUE; + } else if (!strcmp (value, "objectBoundingBox")) { + mask->maskUnits_set = TRUE; + } + } + object->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); + break; + case SP_ATTR_MASKCONTENTUNITS: + mask->maskContentUnits = SP_CONTENT_UNITS_USERSPACEONUSE; + mask->maskContentUnits_set = FALSE; + if (value) { + if (!strcmp (value, "userSpaceOnUse")) { + mask->maskContentUnits_set = TRUE; + } else if (!strcmp (value, "objectBoundingBox")) { + mask->maskContentUnits = SP_CONTENT_UNITS_OBJECTBOUNDINGBOX; + mask->maskContentUnits_set = TRUE; + } + } + object->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); + break; + default: + if (((SPObjectClass *) parent_class)->set) + ((SPObjectClass *) parent_class)->set (object, key, value); + break; + } +} + +static void +sp_mask_child_added (SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref) +{ + /* Invoke SPObjectGroup implementation */ + ((SPObjectClass *) (parent_class))->child_added (object, child, ref); + + /* Show new object */ + SPObject *ochild = SP_OBJECT_DOCUMENT (object)->getObjectByRepr(child); + if (SP_IS_ITEM (ochild)) { + SPMask *cp = SP_MASK (object); + for (SPMaskView *v = cp->display; v != NULL; v = v->next) { + NRArenaItem *ac = sp_item_invoke_show (SP_ITEM (ochild), + NR_ARENA_ITEM_ARENA (v->arenaitem), + v->key, + SP_ITEM_REFERENCE_FLAGS); + if (ac) { + nr_arena_item_add_child (v->arenaitem, ac, NULL); + nr_arena_item_unref (ac); + } + } + } +} + +static void +sp_mask_update (SPObject *object, SPCtx *ctx, guint flags) +{ + if (flags & SP_OBJECT_MODIFIED_FLAG) { + flags |= SP_OBJECT_PARENT_MODIFIED_FLAG; + } + + flags &= SP_OBJECT_MODIFIED_CASCADE; + + SPObjectGroup *og = SP_OBJECTGROUP (object); + GSList *l = NULL; + for (SPObject *child = sp_object_first_child(SP_OBJECT(og)); child != NULL; child = SP_OBJECT_NEXT(child)) { + g_object_ref (G_OBJECT (child)); + l = g_slist_prepend (l, child); + } + l = g_slist_reverse (l); + while (l) { + SPObject *child = SP_OBJECT (l->data); + l = g_slist_remove (l, child); + if (flags || (child->uflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) { + child->updateDisplay(ctx, flags); + } + g_object_unref (G_OBJECT (child)); + } + + SPMask *mask = SP_MASK (object); + for (SPMaskView *v = mask->display; v != NULL; v = v->next) { + if (mask->maskContentUnits == SP_CONTENT_UNITS_OBJECTBOUNDINGBOX) { + NRMatrix t; + nr_matrix_set_scale (&t, v->bbox.x1 - v->bbox.x0, v->bbox.y1 - v->bbox.y0); + t.c[4] = v->bbox.x0; + t.c[5] = v->bbox.y0; + nr_arena_group_set_child_transform (NR_ARENA_GROUP (v->arenaitem), &t); + } else { + nr_arena_group_set_child_transform (NR_ARENA_GROUP (v->arenaitem), NULL); + } + } +} + +static void +sp_mask_modified (SPObject *object, guint flags) +{ + if (flags & SP_OBJECT_MODIFIED_FLAG) { + flags |= SP_OBJECT_PARENT_MODIFIED_FLAG; + } + + flags &= SP_OBJECT_MODIFIED_CASCADE; + + SPObjectGroup *og = SP_OBJECTGROUP (object); + GSList *l = NULL; + for (SPObject *child = sp_object_first_child(SP_OBJECT(og)); child != NULL; child = SP_OBJECT_NEXT(child)) { + g_object_ref (G_OBJECT (child)); + l = g_slist_prepend (l, child); + } + l = g_slist_reverse (l); + while (l) { + SPObject *child = SP_OBJECT (l->data); + l = g_slist_remove (l, child); + if (flags || (child->mflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) { + child->emitModified(flags); + } + g_object_unref (G_OBJECT (child)); + } +} + +static Inkscape::XML::Node * +sp_mask_write (SPObject *object, Inkscape::XML::Node *repr, guint flags) +{ + if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) { + repr = sp_repr_new ("svg:mask"); + } + + if (((SPObjectClass *) (parent_class))->write) + ((SPObjectClass *) (parent_class))->write (object, repr, flags); + + return repr; +} + +NRArenaItem * +sp_mask_show (SPMask *mask, NRArena *arena, unsigned int key) +{ + g_return_val_if_fail (mask != NULL, NULL); + g_return_val_if_fail (SP_IS_MASK (mask), NULL); + g_return_val_if_fail (arena != NULL, NULL); + g_return_val_if_fail (NR_IS_ARENA (arena), NULL); + + NRArenaItem *ai = NRArenaGroup::create(arena); + mask->display = sp_mask_view_new_prepend (mask->display, key, ai); + + for (SPObject *child = sp_object_first_child(SP_OBJECT(mask)) ; child != NULL; child = SP_OBJECT_NEXT(child)) { + if (SP_IS_ITEM (child)) { + NRArenaItem *ac = sp_item_invoke_show (SP_ITEM (child), arena, key, SP_ITEM_REFERENCE_FLAGS); + if (ac) { + /* The order is not important in mask */ + nr_arena_item_add_child (ai, ac, NULL); + nr_arena_item_unref (ac); + } + } + } + + if (mask->maskContentUnits == SP_CONTENT_UNITS_OBJECTBOUNDINGBOX) { + NRMatrix t; + nr_matrix_set_scale (&t, mask->display->bbox.x1 - mask->display->bbox.x0, mask->display->bbox.y1 - mask->display->bbox.y0); + t.c[4] = mask->display->bbox.x0; + t.c[5] = mask->display->bbox.y0; + nr_arena_group_set_child_transform (NR_ARENA_GROUP (ai), &t); + } + + return ai; +} + +void +sp_mask_hide (SPMask *cp, unsigned int key) +{ + g_return_if_fail (cp != NULL); + g_return_if_fail (SP_IS_MASK (cp)); + + for (SPObject *child = sp_object_first_child(SP_OBJECT(cp)); child != NULL; child = SP_OBJECT_NEXT(child)) { + if (SP_IS_ITEM (child)) { + sp_item_invoke_hide (SP_ITEM (child), key); + } + } + + for (SPMaskView *v = cp->display; v != NULL; v = v->next) { + if (v->key == key) { + /* We simply unref and let item to manage this in handler */ + cp->display = sp_mask_view_list_remove (cp->display, v); + return; + } + } + + g_assert_not_reached (); +} + +void +sp_mask_set_bbox (SPMask *mask, unsigned int key, NRRect *bbox) +{ + for (SPMaskView *v = mask->display; v != NULL; v = v->next) { + if (v->key == key) { + if (!NR_DF_TEST_CLOSE (v->bbox.x0, bbox->x0, NR_EPSILON) || + !NR_DF_TEST_CLOSE (v->bbox.y0, bbox->y0, NR_EPSILON) || + !NR_DF_TEST_CLOSE (v->bbox.x1, bbox->x1, NR_EPSILON) || + !NR_DF_TEST_CLOSE (v->bbox.y1, bbox->y1, NR_EPSILON)) { + v->bbox = *bbox; + SP_OBJECT(mask)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); + } + break; + } + } +} + +/* Mask views */ + +SPMaskView * +sp_mask_view_new_prepend (SPMaskView *list, unsigned int key, NRArenaItem *arenaitem) +{ + SPMaskView *new_mask_view = g_new (SPMaskView, 1); + + new_mask_view->next = list; + new_mask_view->key = key; + new_mask_view->arenaitem = nr_arena_item_ref(arenaitem); + new_mask_view->bbox.x0 = new_mask_view->bbox.x1 = 0.0; + new_mask_view->bbox.y0 = new_mask_view->bbox.y1 = 0.0; + + return new_mask_view; +} + +SPMaskView * +sp_mask_view_list_remove (SPMaskView *list, SPMaskView *view) +{ + if (view == list) { + list = list->next; + } else { + SPMaskView *prev; + prev = list; + while (prev->next != view) prev = prev->next; + prev->next = view->next; + } + + nr_arena_item_unref (view->arenaitem); + g_free (view); + + return list; +} + -- cgit v1.2.3