From 24c20239779d0ec616adde651c594c7bf08d58c7 Mon Sep 17 00:00:00 2001 From: Thomas White Date: Tue, 19 Feb 2019 18:17:56 +0100 Subject: WIP --- src/presentation.c | 362 ----------------------------------------------------- 1 file changed, 362 deletions(-) delete mode 100644 src/presentation.c (limited to 'src/presentation.c') diff --git a/src/presentation.c b/src/presentation.c deleted file mode 100644 index d7d9c08..0000000 --- a/src/presentation.c +++ /dev/null @@ -1,362 +0,0 @@ -/* - * presentation.c - * - * Copyright © 2013-2018 Thomas White - * - * This file is part of Colloquium. - * - * Colloquium is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - * - */ - - -#ifdef HAVE_CONFIG_H -#include -#endif - -#include -#include -#include -#include - -#include "presentation.h" -#include "slide_window.h" -#include "frame.h" -#include "imagestore.h" -#include "render.h" -#include "sc_interp.h" -#include "utils.h" - - -void free_presentation(struct presentation *p) -{ - /* FIXME: Loads of stuff leaks here */ - g_object_unref(p->file); - g_object_unref(p->stylesheet_from); - imagestore_destroy(p->is); - free(p); -} - - -char *get_titlebar_string(struct presentation *p) -{ - if ( p == NULL || p->file == NULL ) { - return strdup(_("(untitled)")); - } else { - char *bn = g_file_get_basename(p->file); - return bn; - } -} - - -static void find_and_load_stylesheet(struct presentation *p, GFile *file) -{ - GFile *ssfile; - - if ( file != NULL ) { - - /* First choice: /same/directory/.ss */ - gchar *ssuri = g_file_get_uri(file); - if ( ssuri != NULL ) { - size_t l = strlen(ssuri); - if ( ssuri[l-3] == '.' && ssuri[l-2] == 's' && ssuri[l-1] =='c' ) { - ssuri[l-1] = 's'; - ssfile = g_file_new_for_uri(ssuri); - p->stylesheet = stylesheet_load(ssfile); - p->stylesheet_from = ssfile; - g_free(ssuri); - } - } - - /* Second choice: /same/directory/stylesheet.ss */ - if ( p->stylesheet == NULL ) { - GFile *parent = g_file_get_parent(file); - if ( parent != NULL ) { - ssfile = g_file_get_child(parent, "stylesheet.ss"); - if ( ssfile != NULL ) { - p->stylesheet = stylesheet_load(ssfile); - p->stylesheet_from = ssfile; - } - g_object_unref(parent); - } - } - - } - - /* Third choice: /stylesheet.ss */ - if ( p->stylesheet == NULL ) { - ssfile = g_file_new_for_path("./stylesheet.ss"); - p->stylesheet = stylesheet_load(ssfile); - p->stylesheet_from = ssfile; - } - - /* Fourth choice: internal default stylesheet */ - if ( p->stylesheet == NULL ) { - ssfile = g_file_new_for_uri("resource:///uk/me/bitwiz/Colloquium/default.ss"); - p->stylesheet = stylesheet_load(ssfile); - p->stylesheet_from = NULL; - g_object_unref(ssfile); - } - - /* Last resort is NULL stylesheet and SCInterpreter's defaults */ - /* We keep a reference to the GFile */ -} - - -struct presentation *new_presentation(const char *imagestore) -{ - struct presentation *new; - - new = calloc(1, sizeof(struct presentation)); - if ( new == NULL ) return NULL; - - new->file = NULL; - new->stylesheet_from = NULL; - - new->scblocks = NULL; - - /* Default slide size */ - new->slide_width = 1024.0; - new->slide_height = 768.0; - - new->completely_empty = 1; - new->saved = 1; - new->stylesheet = NULL; - new->is = imagestore_new(imagestore); - - new->lang = pango_language_get_default(); - - find_and_load_stylesheet(new, NULL); - - return new; -} - - -int save_presentation(struct presentation *p, GFile *file, GFile *ssfile) -{ - GFileOutputStream *fh; - int r; - int sr; - GError *error = NULL; - - fh = g_file_replace(file, NULL, FALSE, G_FILE_CREATE_NONE, NULL, &error); - if ( fh == NULL ) { - fprintf(stderr, _("Open failed: %s\n"), error->message); - return 1; - } - r = save_sc_block(G_OUTPUT_STREAM(fh), p->scblocks); - if ( r ) { - fprintf(stderr, _("Couldn't save presentation\n")); - } - g_object_unref(fh); - - if ( ssfile != NULL ) { - char *uri = g_file_get_uri(ssfile); - printf(_("Saving stylesheet to %s\n"), uri); - g_free(uri); - sr = stylesheet_save(p->stylesheet, ssfile); - if ( sr ) { - fprintf(stderr, _("Couldn't save stylesheet\n")); - } - if ( p->stylesheet_from != ssfile ) { - if ( p->stylesheet_from != NULL ) { - g_object_unref(p->stylesheet_from); - } - p->stylesheet_from = ssfile; - g_object_ref(p->stylesheet_from); - } - } else { - fprintf(stderr, _("Not saving the stylesheet\n")); - sr = 0; - } - - if ( r || sr ) return 1; - - imagestore_set_parent(p->is, g_file_get_parent(file)); - - if ( p->file != file ) { - if ( p->file != NULL ) g_object_unref(p->file); - p->file = file; - g_object_ref(p->file); - } - p->saved = 1; - update_titlebar(p->narrative_window); - return 0; -} - - -int slide_number(struct presentation *p, SCBlock *sl) -{ - SCBlock *bl = p->scblocks; - int n = 0; - - while ( bl != NULL ) { - if ( safe_strcmp(sc_block_name(bl), "slide") == 0 ) { - n++; - if ( bl == sl ) return n; - } - bl = sc_block_next(bl); - } - - return 0; -} - - -int num_slides(struct presentation *p) -{ - SCBlock *bl = p->scblocks; - int n = 0; - - while ( bl != NULL ) { - if ( safe_strcmp(sc_block_name(bl), "slide") == 0 ) { - n++; - } - bl = sc_block_next(bl); - } - - return n; -} - - -SCBlock *first_slide(struct presentation *p) -{ - SCBlock *bl = p->scblocks; - - while ( bl != NULL ) { - if ( safe_strcmp(sc_block_name(bl), "slide") == 0 ) { - return bl; - } - bl = sc_block_next(bl); - } - - fprintf(stderr, "Couldn't find first slide!\n"); - return NULL; -} - - -SCBlock *last_slide(struct presentation *p) -{ - SCBlock *bl = p->scblocks; - SCBlock *l = NULL; - - while ( bl != NULL ) { - if ( safe_strcmp(sc_block_name(bl), "slide") == 0 ) { - l = bl; - } - bl = sc_block_next(bl); - } - - if ( l == NULL ) { - fprintf(stderr, "Couldn't find last slide!\n"); - } - return l; -} - - -SCBlock *next_slide(struct presentation *p, SCBlock *sl) -{ - SCBlock *bl = sl; - int found = 0; - - while ( bl != NULL ) { - if ( safe_strcmp(sc_block_name(bl), "slide") == 0 ) { - if ( found ) return bl; - } - if ( bl == sl ) { - found = 1; - } - bl = sc_block_next(bl); - } - - fprintf(stderr, "Couldn't find next slide!\n"); - return NULL; -} - - -SCBlock *prev_slide(struct presentation *p, SCBlock *sl) -{ - SCBlock *bl = p->scblocks; - SCBlock *l = NULL; - - while ( bl != NULL ) { - if ( bl == sl ) { - if ( l == NULL ) return sl; /* Already on first slide */ - return l; - } - if ( safe_strcmp(sc_block_name(bl), "slide") == 0 ) { - l = bl; - } - bl = sc_block_next(bl); - } - - fprintf(stderr, "Couldn't find prev slide!\n"); - return NULL; -} - - -static void set_slide_size_from_stylesheet(struct presentation *p) -{ - char *result; - - result = stylesheet_lookup(p->stylesheet, "$.slide", "size"); - if ( result != NULL ) { - float v[2]; - if ( parse_double(result, v) == 0 ) { - p->slide_width = v[0]; - p->slide_height = v[1]; - } - } -} - - -int load_presentation(struct presentation *p, GFile *file) -{ - int r = 0; - char *everything; - - assert(p->completely_empty); - - if ( !g_file_load_contents(file, NULL, &everything, NULL, NULL, NULL) ) { - fprintf(stderr, _("Failed to load '%s'\n"), g_file_get_uri(file)); - return 1; - } - - p->scblocks = sc_parse(everything); - g_free(everything); - - p->lang = pango_language_get_default(); - - if ( p->scblocks == NULL ) r = 1; - - if ( r ) { - p->completely_empty = 1; - fprintf(stderr, _("Parse error.\n")); - return r; /* Error */ - } - - p->stylesheet = NULL; - - find_and_load_stylesheet(p, file); - - set_slide_size_from_stylesheet(p); - - assert(p->file == NULL); - p->file = file; - g_object_ref(file); - - imagestore_set_parent(p->is, g_file_get_parent(file)); - - return 0; -} - -- cgit v1.2.3