diff options
author | Thomas White <taw@bitwiz.org.uk> | 2012-09-09 21:20:13 +0200 |
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committer | Thomas White <taw@bitwiz.org.uk> | 2012-09-09 21:20:13 +0200 |
commit | fe212419abae3340b58dd3e0c187063a4c267c92 (patch) | |
tree | 15192f18abfaa359db802eccff0ef67e2494dbf6 /src/presentation.c | |
parent | 017121b0816250ddcc8a08746a6f140e48ca2d9e (diff) |
Move actual loading/saving stuff to presentation
Diffstat (limited to 'src/presentation.c')
-rw-r--r-- | src/presentation.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/presentation.c b/src/presentation.c index 405cf49..a94b220 100644 --- a/src/presentation.c +++ b/src/presentation.c @@ -32,6 +32,8 @@ #include "presentation.h" #include "stylesheet.h" +#include "loadsave.h" +#include "mainwindow.h" static int num_presentations = 0; @@ -224,3 +226,190 @@ struct presentation *new_presentation() return new; } + + +int save_presentation(struct presentation *p, const char *filename) +{ + FILE *fh; + int i; + struct serializer ser; + char *old_fn; + + //grab_current_notes(p); + + fh = fopen(filename, "w"); + if ( fh == NULL ) return 1; + + /* Set up the serializer */ + ser.fh = fh; + ser.stack_depth = 0; + ser.prefix = NULL; + + fprintf(fh, "# Colloquium presentation file\n"); + serialize_f(&ser, "version", 0.1); + + serialize_start(&ser, "slide-properties"); + serialize_f(&ser, "width", p->slide_width); + serialize_f(&ser, "height", p->slide_height); + serialize_end(&ser); + + serialize_start(&ser, "stylesheet"); + write_stylesheet(p->ss, &ser); + serialize_end(&ser); + + serialize_start(&ser, "slides"); + for ( i=0; i<p->num_slides; i++ ) { + + struct slide *s; + char s_id[32]; + + s = p->slides[i]; + + snprintf(s_id, 31, "%i", i); + serialize_start(&ser, s_id); + + /* FIXME: Save stuff */ + + serialize_end(&ser); + + } + serialize_end(&ser); + + /* Slightly fiddly because someone might + * do save_presentation(p, p->filename) */ + old_fn = p->filename; + p->filename = strdup(filename); + if ( old_fn != NULL ) free(old_fn); + update_titlebar(p); + + fclose(fh); + return 0; +} + + +static struct slide *tree_to_slide(struct presentation *p, struct ds_node *root) +{ + struct slide *s; + + s = new_slide(); + s->parent = p; + + /* FIXME: Load stuff */ + + return s; +} + + +static int tree_to_slides(struct ds_node *root, struct presentation *p) +{ + int i; + + for ( i=0; i<root->n_children; i++ ) { + + struct slide *s; + + s = tree_to_slide(p, root->children[i]); + if ( s != NULL ) { + insert_slide(p, s, p->num_slides-1); + } + + } + + return 0; +} + + +int tree_to_presentation(struct ds_node *root, struct presentation *p) +{ + struct ds_node *node; + char *check; + int i; + + p->cur_edit_slide = NULL; + p->cur_proj_slide = NULL; + + node = find_node(root, "slide-properties/width", 0); + if ( node == NULL ) return 1; + p->slide_width = strtod(node->value, &check); + if ( check == node->value ) { + fprintf(stderr, "Invalid slide width\n"); + return 1; + } + + node = find_node(root, "slide-properties/height", 0); + if ( node == NULL ) return 1; + p->slide_height = strtod(node->value, &check); + if ( check == node->value ) { + fprintf(stderr, "Invalid slide height\n"); + return 1; + } + + node = find_node(root, "stylesheet", 0); + if ( node != NULL ) { + free_stylesheet(p->ss); + p->ss = tree_to_stylesheet(node); + if ( p->ss == NULL ) { + fprintf(stderr, "Invalid style sheet\n"); + return 1; + } + } + + for ( i=0; i<p->num_slides; i++ ) { + free_slide(p->slides[i]); + p->num_slides = 0; + } + + node = find_node(root, "slides", 0); + if ( node != NULL ) { + tree_to_slides(node, p); + if ( p->num_slides == 0 ) { + fprintf(stderr, "Failed to load any slides\n"); + p->cur_edit_slide = add_slide(p, 0); + return 1; + } + } + + return 0; +} + + +int load_presentation(struct presentation *p, const char *filename) +{ + FILE *fh; + struct ds_node *root; + int r; + + assert(p->completely_empty); + + fh = fopen(filename, "r"); + if ( fh == NULL ) return 1; + + root = new_ds_node("root"); + if ( root == NULL ) return 1; + + if ( deserialize_file(fh, root) ) { + fclose(fh); + return 1; + } + + r = tree_to_presentation(root, p); + free_ds_tree(root); + + fclose(fh); + + if ( r ) { + p->cur_edit_slide = new_slide(); + insert_slide(p, p->cur_edit_slide, 0); + p->completely_empty = 1; + return r; /* Error */ + } + + assert(p->filename == NULL); + p->filename = strdup(filename); + update_titlebar(p); + + p->cur_edit_slide = p->slides[0]; + + return 0; +} + |