diff options
Diffstat (limited to 'src/display/nr-arena-item.cpp')
| -rw-r--r-- | src/display/nr-arena-item.cpp | 949 |
1 files changed, 0 insertions, 949 deletions
diff --git a/src/display/nr-arena-item.cpp b/src/display/nr-arena-item.cpp deleted file mode 100644 index 6a5b7b5ba..000000000 --- a/src/display/nr-arena-item.cpp +++ /dev/null @@ -1,949 +0,0 @@ -#define __NR_ARENA_ITEM_C__ - -/* - * RGBA display list system for inkscape - * - * Author: - * Lauris Kaplinski <lauris@kaplinski.com> - * - * Copyright (C) 2001-2002 Lauris Kaplinski - * Copyright (C) 2001 Ximian, Inc. - * - * Released under GNU GPL, read the file 'COPYING' for more information - */ - -#define noNR_ARENA_ITEM_VERBOSE -#define noNR_ARENA_ITEM_DEBUG_CASCADE - -#include <cstring> -#include <string> - -#include <libnr/nr-blit.h> -#include <libnr/nr-pixops.h> -#include "nr-arena.h" -#include "nr-arena-item.h" -#include "gc-core.h" -#include "helper/geom.h" - -#include "nr-filter.h" -#include "nr-arena-group.h" -#include "preferences.h" - -namespace GC = Inkscape::GC; - -static void nr_arena_item_class_init (NRArenaItemClass *klass); -static void nr_arena_item_init (NRArenaItem *item); -static void nr_arena_item_private_finalize (NRObject *object); - -static NRObjectClass *parent_class; - -NRType -nr_arena_item_get_type (void) -{ - static NRType type = 0; - if (!type) { - type = nr_object_register_type (NR_TYPE_OBJECT, - "NRArenaItem", - sizeof (NRArenaItemClass), - sizeof (NRArenaItem), - (void (*)(NRObjectClass *)) - nr_arena_item_class_init, - (void (*)(NRObject *)) - nr_arena_item_init); - } - return type; -} - -static void -nr_arena_item_class_init (NRArenaItemClass *klass) -{ - NRObjectClass *object_class; - - object_class = (NRObjectClass *) klass; - - parent_class = ((NRObjectClass *) klass)->parent; - - object_class->finalize = nr_arena_item_private_finalize; - object_class->cpp_ctor = NRObject::invoke_ctor < NRArenaItem >; -} - -static void -nr_arena_item_init (NRArenaItem *item) -{ - item->arena = NULL; - item->parent = NULL; - item->next = item->prev = NULL; - - item->key = 0; - - item->state = 0; - item->sensitive = TRUE; - item->visible = TRUE; - - memset (&item->bbox, 0, sizeof (item->bbox)); - memset (&item->drawbox, 0, sizeof (item->drawbox)); - item->transform = NULL; - item->opacity = 255; - item->render_opacity = FALSE; - - item->transform = NULL; - item->clip = NULL; - item->mask = NULL; - item->px = NULL; - item->data = NULL; - item->filter = NULL; - item->background_pb = NULL; - item->background_new = false; -} - -static void -nr_arena_item_private_finalize (NRObject *object) -{ - NRArenaItem *item = static_cast < NRArenaItem * >(object); - - item->px = NULL; - item->transform = NULL; - - ((NRObjectClass *) (parent_class))->finalize (object); -} - -NRArenaItem * -nr_arena_item_children (NRArenaItem *item) -{ - nr_return_val_if_fail (item != NULL, NULL); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL); - - if (NR_ARENA_ITEM_VIRTUAL (item, children)) - return NR_ARENA_ITEM_VIRTUAL (item, children) (item); - - return NULL; -} - -NRArenaItem * -nr_arena_item_last_child (NRArenaItem *item) -{ - nr_return_val_if_fail (item != NULL, NULL); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL); - - if (NR_ARENA_ITEM_VIRTUAL (item, last_child)) { - return NR_ARENA_ITEM_VIRTUAL (item, last_child) (item); - } else { - NRArenaItem *ref = nr_arena_item_children (item); - if (ref) - while (ref->next) - ref = ref->next; - return ref; - } -} - -void -nr_arena_item_add_child (NRArenaItem *item, NRArenaItem *child, - NRArenaItem *ref) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - nr_return_if_fail (child != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (child)); - nr_return_if_fail (child->parent == NULL); - nr_return_if_fail (child->prev == NULL); - nr_return_if_fail (child->next == NULL); - nr_return_if_fail (child->arena == item->arena); - nr_return_if_fail (child != ref); - nr_return_if_fail (!ref || NR_IS_ARENA_ITEM (ref)); - nr_return_if_fail (!ref || (ref->parent == item)); - - if (NR_ARENA_ITEM_VIRTUAL (item, add_child)) - NR_ARENA_ITEM_VIRTUAL (item, add_child) (item, child, ref); -} - -void -nr_arena_item_remove_child (NRArenaItem *item, NRArenaItem *child) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - nr_return_if_fail (child != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (child)); - nr_return_if_fail (child->parent == item); - - if (NR_ARENA_ITEM_VIRTUAL (item, remove_child)) - NR_ARENA_ITEM_VIRTUAL (item, remove_child) (item, child); -} - -void -nr_arena_item_set_child_position (NRArenaItem *item, NRArenaItem *child, - NRArenaItem *ref) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - nr_return_if_fail (child != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (child)); - nr_return_if_fail (child->parent == item); - nr_return_if_fail (!ref || NR_IS_ARENA_ITEM (ref)); - nr_return_if_fail (!ref || (ref->parent == item)); - - if (NR_ARENA_ITEM_VIRTUAL (item, set_child_position)) - NR_ARENA_ITEM_VIRTUAL (item, set_child_position) (item, child, ref); -} - -NRArenaItem * -nr_arena_item_ref (NRArenaItem *item) -{ - nr_object_ref ((NRObject *) item); - - return item; -} - -NRArenaItem * -nr_arena_item_unref (NRArenaItem *item) -{ - nr_object_unref ((NRObject *) item); - - return NULL; -} - -unsigned int -nr_arena_item_invoke_update (NRArenaItem *item, NRRectL *area, NRGC *gc, - unsigned int state, unsigned int reset) -{ - NRGC childgc (gc); - bool filter = (item->arena->rendermode == Inkscape::RENDERMODE_NORMAL); - - nr_return_val_if_fail (item != NULL, NR_ARENA_ITEM_STATE_INVALID); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), - NR_ARENA_ITEM_STATE_INVALID); - nr_return_val_if_fail (!(state & NR_ARENA_ITEM_STATE_INVALID), - NR_ARENA_ITEM_STATE_INVALID); - -#ifdef NR_ARENA_ITEM_DEBUG_CASCADE - printf ("Update %s:%p %x %x %x\n", - nr_type_name_from_instance ((GTypeInstance *) item), item, state, - item->state, reset); -#endif - - /* return if in error */ - if (item->state & NR_ARENA_ITEM_STATE_INVALID) - return item->state; - /* Set reset flags according to propagation status */ - if (item->propagate) { - reset |= ~item->state; - item->propagate = FALSE; - } - /* Reset our state */ - item->state &= ~reset; - /* Return if NOP */ - if (!(~item->state & state)) - return item->state; - /* Test whether to return immediately */ - if (area && (item->state & NR_ARENA_ITEM_STATE_BBOX)) { - if (!nr_rect_l_test_intersect_ptr(area, &item->drawbox)) - return item->state; - } - - /* Reset image cache, if not to be kept */ - if (!(item->state & NR_ARENA_ITEM_STATE_IMAGE) && (item->px)) { - item->px = NULL; - } - - /* Set up local gc */ - childgc = *gc; - if (item->transform) { - childgc.transform = (*item->transform) * childgc.transform; - } - /* Remember the transformation matrix */ - item->ctm = childgc.transform; - - /* Invoke the real method */ - // that will update bbox - item->state = NR_ARENA_ITEM_VIRTUAL (item, update) (item, area, &childgc, state, reset); - if (item->state & NR_ARENA_ITEM_STATE_INVALID) - return item->state; - - // get a copy of bbox - memcpy(&item->drawbox, &item->bbox, sizeof(item->bbox)); - - /* Enlarge the drawbox to contain filter effects */ - if (item->filter && filter) { - item->filter->bbox_enlarge (item->drawbox); - } - // fixme: to fix the display glitches, in outline mode bbox must be a combination of - // full item bbox and its clip and mask (after we have the API to get these) - - /* Clipping */ - if (item->clip) { - // FIXME: since here we only need bbox, consider passing - // ((state & !(NR_ARENA_ITEM_STATE_RENDER)) | NR_ARENA_ITEM_STATE_BBOX) - // instead of state, so it does not have to create rendering structures in nr_arena_shape_update - unsigned int newstate = nr_arena_item_invoke_update (item->clip, area, &childgc, state, reset); - if (newstate & NR_ARENA_ITEM_STATE_INVALID) { - item->state |= NR_ARENA_ITEM_STATE_INVALID; - return item->state; - } - // for clipping, we need geometric bbox - nr_rect_l_intersect (&item->drawbox, &item->drawbox, &item->clip->bbox); - } - /* Masking */ - if (item->mask) { - unsigned int newstate = nr_arena_item_invoke_update (item->mask, area, &childgc, state, reset); - if (newstate & NR_ARENA_ITEM_STATE_INVALID) { - item->state |= NR_ARENA_ITEM_STATE_INVALID; - return item->state; - } - // for masking, we need full drawbox of mask - nr_rect_l_intersect (&item->drawbox, &item->drawbox, &item->mask->drawbox); - } - - // now that we know drawbox, dirty the corresponding rect on canvas: - if (!NR_IS_ARENA_GROUP(item) || (item->filter && filter)) { - // unless filtered, groups do not need to render by themselves, only their members - nr_arena_item_request_render (item); - } - - return item->state; -} - -/** - * Render item to pixblock. - * - * \return Has NR_ARENA_ITEM_STATE_RENDER set on success. - */ - -unsigned int -nr_arena_item_invoke_render (cairo_t *ct, NRArenaItem *item, NRRectL const *area, - NRPixBlock *pb, unsigned int flags) -{ - bool outline = (item->arena->rendermode == Inkscape::RENDERMODE_OUTLINE); - bool filter = (item->arena->rendermode != Inkscape::RENDERMODE_OUTLINE && - item->arena->rendermode != Inkscape::RENDERMODE_NO_FILTERS); - bool print_colors = (item->arena->colorrendermode == Inkscape::COLORRENDERMODE_PRINT_COLORS_PREVIEW); - - nr_return_val_if_fail (item != NULL, NR_ARENA_ITEM_STATE_INVALID); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), - NR_ARENA_ITEM_STATE_INVALID); - nr_return_val_if_fail (item->state & NR_ARENA_ITEM_STATE_BBOX, - item->state); - -#ifdef NR_ARENA_ITEM_VERBOSE - g_message ("Invoke render %p on %p: %d %d - %d %d, %d %d - %d %d", item, pb, - area->x0, area->y0, - area->x1, area->y1, - item->drawbox.x0, item->drawbox.y0, - item->drawbox.x1, item->drawbox.y1); -#endif - - /* If we are invisible, just return successfully */ - if (!item->visible) - return item->state | NR_ARENA_ITEM_STATE_RENDER; - - NRRectL carea; - nr_rect_l_intersect (&carea, area, &item->drawbox); - if (nr_rect_l_test_empty(carea)) - return item->state | NR_ARENA_ITEM_STATE_RENDER; - if (item->filter && filter) { - item->filter->area_enlarge (carea, item); - nr_rect_l_intersect (&carea, &carea, &item->drawbox); - } - - if (outline) { - // No caching in outline mode for now; investigate if it really gives any advantage with cairo. - // Also no attempts to clip anything; just render everything: item, clip, mask - // First, render the object itself - unsigned int state = NR_ARENA_ITEM_VIRTUAL (item, render) (ct, item, &carea, pb, flags); - if (state & NR_ARENA_ITEM_STATE_INVALID) { - /* Clean up and return error */ - item->state |= NR_ARENA_ITEM_STATE_INVALID; - return item->state; - } - - // render clip and mask, if any - guint32 saved_rgba = item->arena->outlinecolor; // save current outline color - // render clippath as an object, using a different color - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - if (item->clip) { - item->arena->outlinecolor = prefs->getInt("/options/wireframecolors/clips", 0x00ff00ff); // green clips - NR_ARENA_ITEM_VIRTUAL (item->clip, render) (ct, item->clip, &carea, pb, flags); - } - // render mask as an object, using a different color - if (item->mask) { - item->arena->outlinecolor = prefs->getInt("/options/wireframecolors/masks", 0x0000ffff); // blue masks - NR_ARENA_ITEM_VIRTUAL (item->mask, render) (ct, item->mask, &carea, pb, flags); - } - item->arena->outlinecolor = saved_rgba; // restore outline color - - return item->state | NR_ARENA_ITEM_STATE_RENDER; - } - - NRPixBlock cpb; - if (item->px) { - /* Has cache pixblock, render this and return */ - nr_pixblock_setup_extern (&cpb, NR_PIXBLOCK_MODE_R8G8B8A8P, - /* fixme: This probably cannot overflow, because we render only if visible */ - /* fixme: and pixel cache is there only for small items */ - /* fixme: But this still needs extra check (Lauris) */ - item->drawbox.x0, item->drawbox.y0, - item->drawbox.x1, item->drawbox.y1, - item->px, - 4 * (item->drawbox.x1 - item->drawbox.x0), FALSE, - FALSE); - nr_blit_pixblock_pixblock (pb, &cpb); - nr_pixblock_release (&cpb); - pb->empty = FALSE; - return item->state | NR_ARENA_ITEM_STATE_RENDER; - } - - NRPixBlock *dpb = pb; - - /* Setup cache if we can */ - if ((!(flags & NR_ARENA_ITEM_RENDER_NO_CACHE)) && - (carea.x0 <= item->drawbox.x0) && (carea.y0 <= item->drawbox.y0) && - (carea.x1 >= item->drawbox.x1) && (carea.y1 >= item->drawbox.y1) && - (((item->drawbox.x1 - item->drawbox.x0) * (item->drawbox.y1 - - item->drawbox.y0)) <= 4096)) { - // Item drawbox is fully in renderable area and size is acceptable - carea.x0 = item->drawbox.x0; - carea.y0 = item->drawbox.y0; - carea.x1 = item->drawbox.x1; - carea.y1 = item->drawbox.y1; - item->px = - new (GC::ATOMIC) unsigned char[4 * (carea.x1 - carea.x0) * - (carea.y1 - carea.y0)]; - nr_pixblock_setup_extern (&cpb, NR_PIXBLOCK_MODE_R8G8B8A8P, carea.x0, - carea.y0, carea.x1, carea.y1, item->px, - 4 * (carea.x1 - carea.x0), TRUE, TRUE); - cpb.visible_area = pb->visible_area; - dpb = &cpb; - // Set nocache flag for downstream rendering - flags |= NR_ARENA_ITEM_RENDER_NO_CACHE; - } - - /* Determine, whether we need temporary buffer */ - if (item->clip || item->mask - || ((item->opacity != 255) && !item->render_opacity) - || (item->filter && filter) || item->background_new) { - - /* Setup and render item buffer */ - NRPixBlock ipb; - nr_pixblock_setup_fast (&ipb, NR_PIXBLOCK_MODE_R8G8B8A8P, - carea.x0, carea.y0, carea.x1, carea.y1, - TRUE); - - // if memory allocation failed, abort render - if (ipb.size != NR_PIXBLOCK_SIZE_TINY && ipb.data.px == NULL) { - nr_pixblock_release (&ipb); - return (item->state); - } - - /* If background access is used, save the pixblock address. - * This address is set to NULL at the end of this block */ - if (item->background_new) { - item->background_pb = &ipb; - } - - ipb.visible_area = pb->visible_area; - if (item->filter && filter) { - item->filter->area_enlarge (ipb.visible_area, item); - } - - unsigned int state = NR_ARENA_ITEM_VIRTUAL (item, render) (ct, item, &carea, &ipb, flags); - if (state & NR_ARENA_ITEM_STATE_INVALID) { - /* Clean up and return error */ - nr_pixblock_release (&ipb); - if (dpb != pb) - nr_pixblock_release (dpb); - item->state |= NR_ARENA_ITEM_STATE_INVALID; - return item->state; - } - ipb.empty = FALSE; - - /* Run filtering, if a filter is set for this object */ - if (item->filter && filter) { - item->filter->render (item, &ipb); - } - - if (item->clip || item->mask) { - /* Setup mask pixblock */ - NRPixBlock mpb; - nr_pixblock_setup_fast (&mpb, NR_PIXBLOCK_MODE_A8, carea.x0, - carea.y0, carea.x1, carea.y1, TRUE); - - if (mpb.data.px != NULL) { // if memory allocation was successful - - mpb.visible_area = pb->visible_area; - /* Do clip if needed */ - if (item->clip) { - state = nr_arena_item_invoke_clip (item->clip, &carea, &mpb); - if (state & NR_ARENA_ITEM_STATE_INVALID) { - /* Clean up and return error */ - nr_pixblock_release (&mpb); - nr_pixblock_release (&ipb); - if (dpb != pb) - nr_pixblock_release (dpb); - item->state |= NR_ARENA_ITEM_STATE_INVALID; - return item->state; - } - mpb.empty = FALSE; - } - /* Do mask if needed */ - if (item->mask) { - NRPixBlock tpb; - /* Set up yet another temporary pixblock */ - nr_pixblock_setup_fast (&tpb, NR_PIXBLOCK_MODE_R8G8B8A8N, - carea.x0, carea.y0, carea.x1, - carea.y1, TRUE); - - if (tpb.data.px != NULL) { // if memory allocation was successful - - tpb.visible_area = pb->visible_area; - unsigned int state = NR_ARENA_ITEM_VIRTUAL (item->mask, render) (ct, item->mask, &carea, &tpb, flags); - if (state & NR_ARENA_ITEM_STATE_INVALID) { - /* Clean up and return error */ - nr_pixblock_release (&tpb); - nr_pixblock_release (&mpb); - nr_pixblock_release (&ipb); - if (dpb != pb) - nr_pixblock_release (dpb); - item->state |= NR_ARENA_ITEM_STATE_INVALID; - return item->state; - } - /* Composite with clip */ - if (item->clip) { - int x, y; - for (y = carea.y0; y < carea.y1; y++) { - unsigned char *s, *d; - s = NR_PIXBLOCK_PX (&tpb) + (y - - carea.y0) * tpb.rs; - d = NR_PIXBLOCK_PX (&mpb) + (y - - carea.y0) * mpb.rs; - for (x = carea.x0; x < carea.x1; x++) { - // See below for calculation - unsigned int m; - m = NR_PREMUL_112 ( (NR_PREMUL_112 (s[0], 54) + - NR_PREMUL_112 (s[1], 183) + - NR_PREMUL_112 (s[2], 19) ) >> 8, s[3]); - d[0] = FAST_DIV_ROUND < 255 * 255 > ( NR_PREMUL_123 (d[0], m)); - s += 4; - d += 1; - } - } - } else { - int x, y; - for (y = carea.y0; y < carea.y1; y++) { - unsigned char *s, *d; - s = NR_PIXBLOCK_PX (&tpb) + (y - - carea.y0) * tpb.rs; - d = NR_PIXBLOCK_PX (&mpb) + (y - - carea.y0) * mpb.rs; - for (x = carea.x0; x < carea.x1; x++) { - unsigned int m; - // m = NR_PREMUL_112 (s[0] + s[1] + s[2], s[3]); - // d[0] = FAST_DIV_ROUND < 3 * 255 > (m); - // Must use luminance to alpha from feColorMatrix. - // This is an approximation, optimized(?) for speed. - // 0.2125 * 256 = 54.4000 - // 0.7154 * 256 = 183.1424 - // 0.0721 * 256 = 18.4576 - m = NR_PREMUL_112 ( (NR_PREMUL_112 (s[0], 54) + - NR_PREMUL_112 (s[1], 183) + - NR_PREMUL_112 (s[2], 19) ) >> 8, s[3]); - d[0] = FAST_DIV_ROUND < 255 > (m); - s += 4; - d += 1; - } - } - mpb.empty = FALSE; - } - } - nr_pixblock_release (&tpb); - } - /* Multiply with opacity if needed */ - if ((item->opacity != 255) && !item->render_opacity - ) { - int x, y; - unsigned int a; - a = item->opacity; - for (y = carea.y0; y < carea.y1; y++) { - unsigned char *d; - d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs; - for (x = carea.x0; x < carea.x1; x++) { - d[0] = NR_PREMUL_111 (d[0], a); - d += 1; - } - } - } - /* Compose rendering pixblock int destination */ - nr_blit_pixblock_pixblock_mask (dpb, &ipb, &mpb); - } - nr_pixblock_release (&mpb); - } else { - if (item->render_opacity) { // opacity was already rendered in, just copy to dpb here - nr_blit_pixblock_pixblock(dpb, &ipb); - } else { // copy while multiplying by opacity - nr_blit_pixblock_pixblock_alpha (dpb, &ipb, item->opacity); - } - } - nr_pixblock_release (&ipb); - dpb->empty = FALSE; - /* This pointer wouldn't be valid outside this block, so clear it */ - item->background_pb = NULL; - } else { - /* Just render */ - unsigned int state = NR_ARENA_ITEM_VIRTUAL (item, render) (ct, item, &carea, dpb, flags); - if (state & NR_ARENA_ITEM_STATE_INVALID) { - /* Clean up and return error */ - if (dpb != pb) - nr_pixblock_release (dpb); - item->state |= NR_ARENA_ITEM_STATE_INVALID; - return item->state; - } - dpb->empty = FALSE; - } - - if (dpb != pb) { - /* Have to blit from cache */ - nr_blit_pixblock_pixblock (pb, dpb); - nr_pixblock_release (dpb); - pb->empty = FALSE; - item->state |= NR_ARENA_ITEM_STATE_IMAGE; - } - - return item->state | NR_ARENA_ITEM_STATE_RENDER; -} - -unsigned int -nr_arena_item_invoke_clip (NRArenaItem *item, NRRectL *area, NRPixBlock *pb) -{ - nr_return_val_if_fail (item != NULL, NR_ARENA_ITEM_STATE_INVALID); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), - NR_ARENA_ITEM_STATE_INVALID); - /* we originally short-circuited if the object state included - * NR_ARENA_ITEM_STATE_CLIP (and showed a warning on the console); - * anyone know why we stopped doing so? - */ - nr_return_val_if_fail ((pb->area.x1 - pb->area.x0) >= - (area->x1 - area->x0), - NR_ARENA_ITEM_STATE_INVALID); - nr_return_val_if_fail ((pb->area.y1 - pb->area.y0) >= - (area->y1 - area->y0), - NR_ARENA_ITEM_STATE_INVALID); - -#ifdef NR_ARENA_ITEM_VERBOSE - printf ("Invoke clip by %p: %d %d - %d %d, item bbox %d %d - %d %d\n", - item, area->x0, area->y0, area->x1, area->y1, (&item->bbox)->x0, - (&item->bbox)->y0, (&item->bbox)->x1, (&item->bbox)->y1); -#endif - - if (item->visible && nr_rect_l_test_intersect_ptr(area, &item->bbox)) { - /* Need render that item */ - if (((NRArenaItemClass *) NR_OBJECT_GET_CLASS (item))->clip) { - return ((NRArenaItemClass *) NR_OBJECT_GET_CLASS (item))-> - clip (item, area, pb); - } - } - - return item->state; -} - -NRArenaItem * -nr_arena_item_invoke_pick (NRArenaItem *item, Geom::Point p, double delta, - unsigned int sticky) -{ - nr_return_val_if_fail (item != NULL, NULL); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL); - - // Sometimes there's no BBOX in item->state, reason unknown (bug 992817); I made this not an assert to remove the warning - if (!(item->state & NR_ARENA_ITEM_STATE_BBOX) - || !(item->state & NR_ARENA_ITEM_STATE_PICK)) - return NULL; - - if (!sticky && !(item->visible && item->sensitive)) - return NULL; - - // TODO: rewrite using Geom::Rect - const double x = p[Geom::X]; - const double y = p[Geom::Y]; - - if (((x + delta) >= item->bbox.x0) && - ((x - delta) < item->bbox.x1) && - ((y + delta) >= item->bbox.y0) && ((y - delta) < item->bbox.y1)) { - if (((NRArenaItemClass *) NR_OBJECT_GET_CLASS (item))->pick) - return ((NRArenaItemClass *) NR_OBJECT_GET_CLASS (item))-> - pick (item, p, delta, sticky); - } - - return NULL; -} - -void -nr_arena_item_request_update (NRArenaItem *item, unsigned int reset, - unsigned int propagate) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - nr_return_if_fail (!(reset & NR_ARENA_ITEM_STATE_INVALID)); - - if (propagate && !item->propagate) - item->propagate = TRUE; - - if (item->state & reset) { - item->state &= ~reset; - if (item->parent) { - nr_arena_item_request_update (item->parent, reset, FALSE); - } else { - nr_arena_request_update (item->arena, item); - } - } -} - -void -nr_arena_item_request_render (NRArenaItem *item) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - - nr_arena_request_render_rect (item->arena, &item->drawbox); -} - -/* Public */ - -NRArenaItem * -nr_arena_item_unparent (NRArenaItem *item) -{ - nr_return_val_if_fail (item != NULL, NULL); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL); - - nr_arena_item_request_render (item); - - if (item->parent) { - nr_arena_item_remove_child (item->parent, item); - } - - return NULL; -} - -void -nr_arena_item_append_child (NRArenaItem *parent, NRArenaItem *child) -{ - nr_return_if_fail (parent != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (parent)); - nr_return_if_fail (child != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (child)); - nr_return_if_fail (parent->arena == child->arena); - nr_return_if_fail (child->parent == NULL); - nr_return_if_fail (child->prev == NULL); - nr_return_if_fail (child->next == NULL); - - nr_arena_item_add_child (parent, child, nr_arena_item_last_child (parent)); -} - -void -nr_arena_item_set_transform (NRArenaItem *item, Geom::Affine const &transform) -{ - Geom::Affine const t (transform); - nr_arena_item_set_transform (item, &t); -} - -void -nr_arena_item_set_transform (NRArenaItem *item, Geom::Affine const *transform) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - - if (!transform && !item->transform) - return; - - const Geom::Affine *md = (item->transform) ? item->transform : &GEOM_MATRIX_IDENTITY; - const Geom::Affine *ms = (transform) ? transform : &GEOM_MATRIX_IDENTITY; - - if (!Geom::matrix_equalp(*md, *ms, NR_EPSILON)) { - nr_arena_item_request_render (item); - if (!transform || transform->isIdentity()) { - /* Set to identity affine */ - item->transform = NULL; - } else { - if (!item->transform) - item->transform = new (GC::ATOMIC) Geom::Affine (); - *item->transform = *transform; - } - nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, TRUE); - } -} - -void -nr_arena_item_set_opacity (NRArenaItem *item, double opacity) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - - nr_arena_item_request_render (item); - - item->opacity = (unsigned int) (opacity * 255.9999); -} - -void -nr_arena_item_set_sensitive (NRArenaItem *item, unsigned int sensitive) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - - /* fixme: mess with pick/repick... */ - - item->sensitive = sensitive; -} - -void -nr_arena_item_set_visible (NRArenaItem *item, unsigned int visible) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - - item->visible = visible; - - nr_arena_item_request_render (item); -} - -void -nr_arena_item_set_clip (NRArenaItem *item, NRArenaItem *clip) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - nr_return_if_fail (!clip || NR_IS_ARENA_ITEM (clip)); - - if (clip != item->clip) { - nr_arena_item_request_render (item); - if (item->clip) - item->clip = nr_arena_item_detach (item, item->clip); - if (clip) - item->clip = nr_arena_item_attach (item, clip, NULL, NULL); - nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, TRUE); - } -} - -void -nr_arena_item_set_mask (NRArenaItem *item, NRArenaItem *mask) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - nr_return_if_fail (!mask || NR_IS_ARENA_ITEM (mask)); - - if (mask != item->mask) { - nr_arena_item_request_render (item); - if (item->mask) - item->mask = nr_arena_item_detach (item, item->mask); - if (mask) - item->mask = nr_arena_item_attach (item, mask, NULL, NULL); - nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, TRUE); - } -} - -void -nr_arena_item_set_order (NRArenaItem *item, int order) -{ - nr_return_if_fail (item != NULL); - nr_return_if_fail (NR_IS_ARENA_ITEM (item)); - - if (!item->parent) - return; - - NRArenaItem *children = nr_arena_item_children (item->parent); - - NRArenaItem *ref = NULL; - int pos = 0; - for (NRArenaItem *child = children; child != NULL; child = child->next) { - if (pos >= order) - break; - if (child != item) { - ref = child; - pos += 1; - } - } - - nr_arena_item_set_child_position (item->parent, item, ref); -} - -void -nr_arena_item_set_item_bbox (NRArenaItem *item, Geom::OptRect &bbox) -{ - nr_return_if_fail(item != NULL); - nr_return_if_fail(NR_IS_ARENA_ITEM(item)); - - item->item_bbox = bbox; -} - -/** Returns a background image for use with filter effects. */ -NRPixBlock * -nr_arena_item_get_background (NRArenaItem const *item) -{ - if (item->background_new) { - return item->background_pb; - } else if (item->parent) { - return nr_arena_item_get_background (item->parent); - } else { - return NULL; - } -} - -/* Helpers */ - -NRArenaItem * -nr_arena_item_attach (NRArenaItem *parent, NRArenaItem *child, - NRArenaItem *prev, NRArenaItem *next) -{ - nr_return_val_if_fail (parent != NULL, NULL); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (parent), NULL); - nr_return_val_if_fail (child != NULL, NULL); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (child), NULL); - nr_return_val_if_fail (child->parent == NULL, NULL); - nr_return_val_if_fail (child->prev == NULL, NULL); - nr_return_val_if_fail (child->next == NULL, NULL); - nr_return_val_if_fail (!prev || NR_IS_ARENA_ITEM (prev), NULL); - nr_return_val_if_fail (!prev || (prev->parent == parent), NULL); - nr_return_val_if_fail (!prev || (prev->next == next), NULL); - nr_return_val_if_fail (!next || NR_IS_ARENA_ITEM (next), NULL); - nr_return_val_if_fail (!next || (next->parent == parent), NULL); - nr_return_val_if_fail (!next || (next->prev == prev), NULL); - - child->parent = parent; - child->prev = prev; - child->next = next; - - if (prev) - prev->next = child; - if (next) - next->prev = child; - - return child; -} - -NRArenaItem * -nr_arena_item_detach (NRArenaItem *parent, NRArenaItem *child) -{ - nr_return_val_if_fail (parent != NULL, NULL); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (parent), NULL); - nr_return_val_if_fail (child != NULL, NULL); - nr_return_val_if_fail (NR_IS_ARENA_ITEM (child), NULL); - nr_return_val_if_fail (child->parent == parent, NULL); - - NRArenaItem *prev = child->prev; - NRArenaItem *next = child->next; - - child->parent = NULL; - child->prev = NULL; - child->next = NULL; - - if (prev) - prev->next = next; - if (next) - next->prev = prev; - - return next; -} - -/* - Local Variables: - mode:c++ - c-file-style:"stroustrup" - c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) - indent-tabs-mode:nil - fill-column:99 - End: -*/ -// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : |