X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;ds=sidebyside;f=shell%2Fev-pixbuf-cache.c;h=1b6966d39b733e2ede96ab3a39043a27b397bd16;hb=b0083a8f9bb4ef2d2fd9bed4106ce61e042f7c5c;hp=0601de053422665b3e0266872cd1c8e166649d3a;hpb=bca369672136e5ff831ece9832afd42085808fba;p=evince.git diff --git a/shell/ev-pixbuf-cache.c b/shell/ev-pixbuf-cache.c index 0601de05..1b6966d3 100644 --- a/shell/ev-pixbuf-cache.c +++ b/shell/ev-pixbuf-cache.c @@ -1,20 +1,32 @@ #include "ev-pixbuf-cache.h" #include "ev-job-queue.h" #include "ev-page-cache.h" - +#include "ev-selection.h" typedef struct _CacheJobInfo { EvJob *job; GdkPixbuf *pixbuf; + EvRenderContext *rc; GList *link_mapping; + GdkRegion *text_mapping; + + /* Selection info. If the *_points structs are unset, we put -1 in x1. + * selection_points are the coordinates encapsulated in selection. + * new_points is the target selection size. */ + EvRectangle selection_points; + GdkPixbuf *selection; + GdkRegion *selection_region; + EvRectangle new_points; } CacheJobInfo; struct _EvPixbufCache { GObject parent; - EvDocument *document; + /* We keep a link to our containing view just for style information. */ + GtkWidget *view; + EvDocument *document; int start_page; int end_page; @@ -55,6 +67,10 @@ static CacheJobInfo *find_job_cache (EvPixbufCache *pixbuf_cach static void copy_job_to_job_info (EvJobRender *job_render, CacheJobInfo *job_info, EvPixbufCache *pixbuf_cache); +static gboolean new_selection_pixbuf_needed(EvPixbufCache *pixbuf_cache, + CacheJobInfo *job_info, + gint page, + gfloat scale); /* These are used for iterating through the prev and next arrays */ @@ -132,6 +148,21 @@ dispose_cache_job_info (CacheJobInfo *job_info, ev_link_mapping_free (job_info->link_mapping); job_info->link_mapping = NULL; } + if (job_info->text_mapping) { + gdk_region_destroy (job_info->text_mapping); + job_info->text_mapping = NULL; + } + if (job_info->selection) { + g_object_unref (G_OBJECT (job_info->selection)); + job_info->selection = NULL; + } + if (job_info->selection_region) { + gdk_region_destroy (job_info->selection_region); + job_info->selection_region = NULL; + } + + job_info->selection_points.x1 = -1; + job_info->new_points.x1 = -1; } static void @@ -154,11 +185,14 @@ ev_pixbuf_cache_dispose (GObject *object) EvPixbufCache * -ev_pixbuf_cache_new (EvDocument *document) +ev_pixbuf_cache_new (GtkWidget *view, + EvDocument *document) { EvPixbufCache *pixbuf_cache; pixbuf_cache = (EvPixbufCache *) g_object_new (EV_TYPE_PIXBUF_CACHE, NULL); + /* This is a backlink, so we don't ref this */ + pixbuf_cache->view = view; pixbuf_cache->document = document; return pixbuf_cache; @@ -173,13 +207,13 @@ job_finished_cb (EvJob *job, GdkPixbuf *pixbuf; /* If the job is outside of our interest, we silently discard it */ - if ((job_render->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) || - (job_render->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) { + if ((job_render->rc->page < (pixbuf_cache->start_page - pixbuf_cache->preload_cache_size)) || + (job_render->rc->page > (pixbuf_cache->end_page + pixbuf_cache->preload_cache_size))) { g_object_unref (job); return; } - job_info = find_job_cache (pixbuf_cache, job_render->page); + job_info = find_job_cache (pixbuf_cache, job_render->rc->page); pixbuf = g_object_ref (job_render->pixbuf); if (job_info->pixbuf) @@ -191,6 +225,24 @@ job_finished_cb (EvJob *job, ev_link_mapping_free (job_info->link_mapping); job_info->link_mapping = job_render->link_mapping; } + + if (job_render->text_mapping) { + if (job_info->text_mapping) + gdk_region_destroy (job_info->text_mapping); + job_info->text_mapping = job_render->text_mapping; + } + + if (job_render->include_selection) { + pixbuf = g_object_ref (job_render->selection); + if (job_info->selection) + g_object_unref (job_info->selection); + if (job_info->selection_region) + gdk_region_destroy (job_info->selection_region); + job_info->selection_points = job_render->selection_points; + job_info->selection_region = gdk_region_copy (job_render->selection_region); + job_info->selection = pixbuf; + g_assert (job_info->selection_points.x1 >= 0); + } if (job_info->job == job) job_info->job = NULL; @@ -216,7 +268,8 @@ check_job_size_and_unref (CacheJobInfo *job_info, return; ev_page_cache_get_size (page_cache, - EV_JOB_RENDER (job_info->job)->page, + EV_JOB_RENDER (job_info->job)->rc->page, + EV_JOB_RENDER (job_info->job)->rc->rotation, scale, &width, &height); @@ -336,7 +389,7 @@ ev_pixbuf_cache_update_range (EvPixbufCache *pixbuf_cache, pixbuf_cache, page, new_job_list, new_prev_job, new_next_job, start_page, end_page, EV_JOB_PRIORITY_HIGH); - page++; + page ++; } for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { @@ -377,6 +430,8 @@ copy_job_to_job_info (EvJobRender *job_render, job_info->pixbuf = pixbuf; if (job_render->link_mapping) job_info->link_mapping = job_render->link_mapping; + if (job_render->text_mapping) + job_info->text_mapping = job_render->text_mapping; } static CacheJobInfo * @@ -433,22 +488,38 @@ ev_pixbuf_cache_clear_job_sizes (EvPixbufCache *pixbuf_cache, #define FIRST_VISABLE_PREV(pixbuf_cache) \ (MAX (0, pixbuf_cache->preload_cache_size + 1 - pixbuf_cache->start_page)) +static void +get_selection_colors (GtkWidget *widget, GdkColor **text, GdkColor **base) +{ + if (GTK_WIDGET_HAS_FOCUS (widget)) { + *text = &widget->style->text [GTK_STATE_SELECTED]; + *base = &widget->style->base [GTK_STATE_SELECTED]; + } else { + *text = &widget->style->text [GTK_STATE_ACTIVE]; + *base = &widget->style->base [GTK_STATE_ACTIVE]; + } +} + static void add_job_if_needed (EvPixbufCache *pixbuf_cache, CacheJobInfo *job_info, EvPageCache *page_cache, gint page, + gint rotation, gfloat scale, EvJobPriority priority) { + gboolean include_links = FALSE; + gboolean include_text = FALSE; + gboolean include_selection = FALSE; int width, height; + GdkColor *text, *base; if (job_info->job) return; - ev_page_cache_get_size (page_cache, - page, scale, - &width, &height); + ev_page_cache_get_size (page_cache, page, rotation, + scale, &width, &height); if (job_info->pixbuf && gdk_pixbuf_get_width (job_info->pixbuf) == width && @@ -456,10 +527,35 @@ add_job_if_needed (EvPixbufCache *pixbuf_cache, return; /* make a new job now */ + if (job_info->rc == NULL) { + job_info->rc = ev_render_context_new (rotation, page, scale); + } else { + ev_render_context_set_rotation (job_info->rc, rotation); + ev_render_context_set_page (job_info->rc, page); + ev_render_context_set_scale (job_info->rc, scale); + } + + /* Figure out what else we need for this job */ + if (job_info->link_mapping == NULL) + include_links = TRUE; + if (job_info->text_mapping == NULL) + include_text = TRUE; + if (new_selection_pixbuf_needed (pixbuf_cache, job_info, page, scale)) { + include_selection = TRUE; + } + + gtk_widget_ensure_style (pixbuf_cache->view); + + get_selection_colors (pixbuf_cache->view, &text, &base); + job_info->job = ev_job_render_new (pixbuf_cache->document, - page, scale, + job_info->rc, width, height, - (job_info->link_mapping == NULL)?TRUE:FALSE); + &(job_info->new_points), + text, base, + include_links, + include_text, + include_selection); ev_job_queue_add_job (job_info->job, priority); g_signal_connect (job_info->job, "finished", G_CALLBACK (job_finished_cb), pixbuf_cache); } @@ -467,6 +563,7 @@ add_job_if_needed (EvPixbufCache *pixbuf_cache, static void ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache, + gint rotation, gfloat scale) { EvPageCache *page_cache; @@ -481,7 +578,7 @@ ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache, page = pixbuf_cache->start_page + i; add_job_if_needed (pixbuf_cache, job_info, - page_cache, page, scale, + page_cache, page, rotation, scale, EV_JOB_PRIORITY_HIGH); } @@ -490,7 +587,7 @@ ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache, page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size + i; add_job_if_needed (pixbuf_cache, job_info, - page_cache, page, scale, + page_cache, page, rotation, scale, EV_JOB_PRIORITY_LOW); } @@ -499,17 +596,19 @@ ev_pixbuf_cache_add_jobs_if_needed (EvPixbufCache *pixbuf_cache, page = pixbuf_cache->end_page + 1 + i; add_job_if_needed (pixbuf_cache, job_info, - page_cache, page, scale, + page_cache, page, rotation, scale, EV_JOB_PRIORITY_LOW); } } void -ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache, - gint start_page, - gint end_page, - gfloat scale) +ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache, + gint start_page, + gint end_page, + gint rotation, + gfloat scale, + GList *selection_list) { EvPageCache *page_cache; @@ -529,9 +628,12 @@ ev_pixbuf_cache_set_page_range (EvPixbufCache *pixbuf_cache, * size, we remove them if we need to. */ ev_pixbuf_cache_clear_job_sizes (pixbuf_cache, scale); + /* Next, we update the target selection for our pages */ + ev_pixbuf_cache_set_selection_list (pixbuf_cache, selection_list); + /* Finally, we add the new jobs for all the sizes that don't have a * pixbuf */ - ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, scale); + ev_pixbuf_cache_add_jobs_if_needed (pixbuf_cache, rotation, scale); } GdkPixbuf * @@ -571,3 +673,363 @@ ev_pixbuf_cache_get_link_mapping (EvPixbufCache *pixbuf_cache, return job_info->link_mapping; } + +static gboolean +new_selection_pixbuf_needed (EvPixbufCache *pixbuf_cache, + CacheJobInfo *job_info, + gint page, + gfloat scale) +{ + EvPageCache *page_cache; + gint width, height; + + if (job_info->selection) { + page_cache = ev_page_cache_get (pixbuf_cache->document); + ev_page_cache_get_size (page_cache, page, job_info->rc->rotation, + scale, &width, &height); + + if (width != gdk_pixbuf_get_width (job_info->selection) || + height != gdk_pixbuf_get_height (job_info->selection)) + return TRUE; + } else { + if (job_info->new_points.x1 >= 0) + return TRUE; + } + return FALSE; +} + +static void +clear_selection_if_needed (EvPixbufCache *pixbuf_cache, + CacheJobInfo *job_info, + gint page, + gfloat scale) +{ + if (new_selection_pixbuf_needed (pixbuf_cache, job_info, page, scale)) { + if (job_info->selection) + g_object_unref (job_info->selection); + job_info->selection = NULL; + job_info->selection_points.x1 = -1; + } +} + +GdkRegion * +ev_pixbuf_cache_get_text_mapping (EvPixbufCache *pixbuf_cache, + gint page) +{ + CacheJobInfo *job_info; + + job_info = find_job_cache (pixbuf_cache, page); + if (job_info == NULL) + return NULL; + + /* We don't need to wait for the idle to handle the callback */ + if (job_info->job && + EV_JOB (job_info->job)->finished) { + copy_job_to_job_info (EV_JOB_RENDER (job_info->job), job_info, pixbuf_cache); + } + + return job_info->text_mapping; +} + +/* Clears the cache of jobs and pixbufs. + */ +void +ev_pixbuf_cache_clear (EvPixbufCache *pixbuf_cache) +{ + int i; + + for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { + dispose_cache_job_info (pixbuf_cache->prev_job + i, pixbuf_cache); + dispose_cache_job_info (pixbuf_cache->next_job + i, pixbuf_cache); + } + + for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { + dispose_cache_job_info (pixbuf_cache->job_list + i, pixbuf_cache); + } +} + + +void +ev_pixbuf_cache_style_changed (EvPixbufCache *pixbuf_cache) +{ + gint i; + + /* FIXME: doesn't update running jobs. */ + for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { + CacheJobInfo *job_info; + + job_info = pixbuf_cache->prev_job + i; + if (job_info->selection) { + g_object_unref (G_OBJECT (job_info->selection)); + job_info->selection = NULL; + } + + job_info = pixbuf_cache->next_job + i; + if (job_info->selection) { + g_object_unref (G_OBJECT (job_info->selection)); + job_info->selection = NULL; + } + } + + for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { + CacheJobInfo *job_info; + + job_info = pixbuf_cache->job_list + i; + if (job_info->selection) { + g_object_unref (G_OBJECT (job_info->selection)); + job_info->selection = NULL; + } + } +} + +GdkPixbuf * +ev_pixbuf_cache_get_selection_pixbuf (EvPixbufCache *pixbuf_cache, + gint page, + gfloat scale, + GdkRegion **region) +{ + CacheJobInfo *job_info; + + /* the document does not implement the selection interface */ + if (!EV_IS_SELECTION (pixbuf_cache->document)) + return NULL; + + job_info = find_job_cache (pixbuf_cache, page); + if (job_info == NULL) + return NULL; + + /* No selection on this page */ + if (job_info->new_points.x1 < 0) + return NULL; + + /* Update the rc */ + g_assert (job_info->rc); + ev_render_context_set_scale (job_info->rc, scale); + + /* If we have a running job, we just return what we have under the + * assumption that it'll be updated later and we can scale it as need + * be */ + if (job_info->job && EV_JOB_RENDER (job_info->job)->include_selection) + return job_info->selection; + + /* Now, lets see if we need to resize the image. If we do, we clear the + * old one. */ + clear_selection_if_needed (pixbuf_cache, job_info, page, scale); + + /* Finally, we see if the two scales are the same, and get a new pixbuf + * if needed. We do this synchronously for now. At some point, we + * _should_ be able to get rid of the doc_mutex, so the synchronicity + * doesn't kill us. Rendering a few glyphs should really be fast. + */ + if (ev_rect_cmp (&(job_info->new_points), &(job_info->selection_points))) { + EvRectangle *old_points; + GdkColor *text, *base; + + /* we need to get a new selection pixbuf */ + ev_document_doc_mutex_lock (); + if (job_info->selection_points.x1 < 0) { + g_assert (job_info->selection == NULL); + old_points = NULL; + } else { + g_assert (job_info->selection != NULL); + old_points = &(job_info->selection_points); + } + + if (job_info->selection_region) + gdk_region_destroy (job_info->selection_region); + job_info->selection_region = + ev_selection_get_selection_region (EV_SELECTION (pixbuf_cache->document), + job_info->rc, + &(job_info->new_points)); + + gtk_widget_ensure_style (pixbuf_cache->view); + + get_selection_colors (pixbuf_cache->view, &text, &base); + + ev_selection_render_selection (EV_SELECTION (pixbuf_cache->document), + job_info->rc, &(job_info->selection), + &(job_info->new_points), + old_points, + text, base); + job_info->selection_points = job_info->new_points; + ev_document_doc_mutex_unlock (); + } + if (region) + *region = job_info->selection_region; + return job_info->selection; +} + +static void +update_job_selection (CacheJobInfo *job_info, + EvViewSelection *selection) +{ + if (job_info->selection == NULL) + job_info->selection_points.x1 = -1; + job_info->new_points = selection->rect; +} + +static void +clear_job_selection (CacheJobInfo *job_info) +{ + job_info->selection_points.x1 = -1; + job_info->new_points.x1 = -1; + + if (job_info->selection) { + g_object_unref (job_info->selection); + job_info->selection = NULL; + } +} + +/* This function will reset the selection on pages that no longer have them, and + * will update the target_selection on those that need it. It will _not_ free + * the previous selection_list -- that's up to caller to do. + */ +void +ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache, + GList *selection_list) +{ + EvPageCache *page_cache; + EvViewSelection *selection; + GList *list = selection_list; + int page; + int i; + + g_return_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache)); + + page_cache = ev_page_cache_get (pixbuf_cache->document); + + /* We check each area to see what needs updating, and what needs freeing; */ + page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size; + for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { + if (page < 0) { + page ++; + continue; + } + + selection = NULL; + while (list) { + if (((EvViewSelection *)list->data)->page == page) { + selection = list->data; + break; + } else if (((EvViewSelection *)list->data)->page > page) + break; + list = list->next; + } + + if (selection) + update_job_selection (pixbuf_cache->prev_job + i, selection); + else + clear_job_selection (pixbuf_cache->prev_job + i); + page ++; + } + + page = pixbuf_cache->start_page; + for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { + selection = NULL; + while (list) { + if (((EvViewSelection *)list->data)->page == page) { + selection = list->data; + break; + } else if (((EvViewSelection *)list->data)->page > page) + break; + list = list->next; + } + + if (selection) + update_job_selection (pixbuf_cache->job_list + i, selection); + else + clear_job_selection (pixbuf_cache->job_list + i); + page ++; + } + + for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { + if (page >= ev_page_cache_get_n_pages (page_cache)) + break; + + selection = NULL; + while (list) { + if (((EvViewSelection *)list->data)->page == page) { + selection = list->data; + break; + } else if (((EvViewSelection *)list->data)->page > page) + break; + list = list->next; + } + + if (selection) + update_job_selection (pixbuf_cache->next_job + i, selection); + else + clear_job_selection (pixbuf_cache->next_job + i); + page ++; + } +} + + +/* Returns what the pixbuf cache thinks is */ + +GList * +ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache) +{ + EvPageCache *page_cache; + EvViewSelection *selection; + GList *retval = NULL; + int page; + int i; + + g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL); + + page_cache = ev_page_cache_get (pixbuf_cache->document); + + /* We check each area to see what needs updating, and what needs freeing; */ + page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size; + for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { + if (page < 0) { + page ++; + continue; + } + + if (pixbuf_cache->prev_job[i].selection_points.x1 != -1) { + selection = g_new0 (EvViewSelection, 1); + selection->page = page; + selection->rect = pixbuf_cache->prev_job[i].selection_points; + if (pixbuf_cache->prev_job[i].selection_region) + selection->covered_region = gdk_region_copy (pixbuf_cache->prev_job[i].selection_region); + retval = g_list_append (retval, selection); + } + + page ++; + } + + page = pixbuf_cache->start_page; + for (i = 0; i < PAGE_CACHE_LEN (pixbuf_cache); i++) { + if (pixbuf_cache->job_list[i].selection_points.x1 != -1) { + selection = g_new0 (EvViewSelection, 1); + selection->page = page; + selection->rect = pixbuf_cache->job_list[i].selection_points; + if (pixbuf_cache->job_list[i].selection_region) + selection->covered_region = gdk_region_copy (pixbuf_cache->job_list[i].selection_region); + retval = g_list_append (retval, selection); + } + + page ++; + } + + for (i = 0; i < pixbuf_cache->preload_cache_size; i++) { + if (page >= ev_page_cache_get_n_pages (page_cache)) + break; + + if (pixbuf_cache->next_job[i].selection_points.x1 != -1) { + selection = g_new0 (EvViewSelection, 1); + selection->page = page; + selection->rect = pixbuf_cache->next_job[i].selection_points; + if (pixbuf_cache->next_job[i].selection_region) + selection->covered_region = gdk_region_copy (pixbuf_cache->next_job[i].selection_region); + retval = g_list_append (retval, selection); + } + + page ++; + } + + return retval; +} +