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/*
* presentation.h
*
* Copyright © 2013 Thomas White <taw@bitwiz.org.uk>
*
* 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 <http://www.gnu.org/licenses/>.
*
*/
#ifndef PRESENTATION_H
#define PRESENTATION_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <cairo.h>
#include <gtk/gtk.h>
#include "stylesheet.h"
#include "imagestore.h"
struct slide
{
struct presentation *parent;
struct slide_template *st;
/* Any of these may be NULL */
cairo_surface_t *rendered_proj;
cairo_surface_t *rendered_edit;
/* This should always be present (and up to date). */
cairo_surface_t *rendered_thumb;
struct frame *top;
char *notes;
};
enum drag_reason
{
DRAG_REASON_NONE,
DRAG_REASON_CREATE,
DRAG_REASON_IMPORT,
DRAG_REASON_RESIZE,
DRAG_REASON_MOVE
};
enum corner
{
CORNER_NONE,
CORNER_TL,
CORNER_TR,
CORNER_BL,
CORNER_BR
};
enum drag_status
{
DRAG_STATUS_NONE,
DRAG_STATUS_COULD_DRAG,
DRAG_STATUS_DRAGGING,
};
/* Inelegance to make furniture selection menus work */
struct menu_pl
{
struct presentation *p;
struct style *sty;
struct slide_template *st;
};
struct presentation
{
char *titlebar;
char *filename;
int completely_empty;
int *num_presentations;
GtkWidget *window;
GtkWidget *drawingarea;
GtkUIManager *ui;
GtkActionGroup *action_group;
GtkIMContext *im_context;
GtkWidget **menu_rebuild_list;
struct menu_pl *menu_path_list;
int n_menu_rebuild;
PangoContext *pc;
ImageStore *is;
/* Pointers to the current "editing" and "projection" slides */
struct slide *cur_edit_slide;
struct slide *cur_proj_slide;
struct slide *cur_notes_slide;
int slideshow_linked;
/* Pointers to the frame currently being edited */
struct frame **selection;
int n_selection;
int max_selection;
size_t cursor_pos;
/* This is the "native" size of the slide. It only exists to give
* font size some meaning in the context of a somewhat arbitrary DPI */
double slide_width;
double slide_height;
/* Width of a slide in the editor, projector or thumbnail (pixels) */
int edit_slide_width;
int proj_slide_width;
int thumb_slide_width;
/* This is just to help with rendering the slides within the
* editing window. */
double border_offs_x;
double border_offs_y;
/* Rubber band boxes and related stuff */
double start_corner_x;
double start_corner_y;
double drag_corner_x;
double drag_corner_y;
double diagonal_length;
double box_x;
double box_y;
double box_width;
double box_height;
enum drag_reason drag_reason;
enum drag_status drag_status;
enum corner drag_corner;
/* Stuff to do with drag and drop import of "content" */
int drag_preview_pending;
int have_drag_data;
int drag_highlight;
double import_width;
double import_height;
int import_acceptable;
/* Slideshow stuff */
GtkWidget *slideshow;
GtkWidget *ss_drawingarea;
GdkCursor *blank_cursor;
int ss_blank;
char ss_geom[256];
StyleSheet *ss;
unsigned int num_slides;
struct slide **slides;
};
extern struct presentation *new_presentation(void);
extern void free_presentation(struct presentation *p);
extern struct slide *new_slide(void);
extern struct slide *add_slide(struct presentation *p, int pos);
extern int insert_slide(struct presentation *p, struct slide *s, int pos);
extern void free_slide(struct slide *s);
extern void get_titlebar_string(struct presentation *p);
extern int slide_number(struct presentation *p, struct slide *s);
extern int load_presentation(struct presentation *p, const char *filename);
extern int save_presentation(struct presentation *p, const char *filename);
extern void set_edit(struct presentation *p, struct slide *s);
extern void set_selection(struct presentation *p, struct frame *fr);
extern void add_selection(struct presentation *p, struct frame *fr);
#define UNUSED __attribute__((unused))
#endif /* PRESENTATION_H */
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