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/*
* frame.h
*
* Colloquium - A tiny presentation program
*
* Copyright (c) 2012 Thomas White <taw@bitwiz.org.uk>
*
* This program 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 FRAME_H
#define FRAME_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pango/pango.h>
#include <cairo.h>
typedef enum
{
DIR_NONE,
DIR_UL,
DIR_U,
DIR_UR,
DIR_R,
DIR_DR,
DIR_D,
DIR_DL,
DIR_L
} Direction;
typedef enum
{
UNITS_SLIDE,
UNITS_FRAC
} LengthUnits;
struct layout_parameters
{
double margin_l;
double margin_r;
double margin_t;
double margin_b;
double pad_l;
double pad_r;
double pad_t;
double pad_b;
double x;
double y;
double w;
LengthUnits w_units;
double h;
LengthUnits h_units;
};
enum wrap_box_type
{
WRAP_BOX_PANGO,
};
struct wrap_box
{
enum wrap_box_type type;
int width; /* Pango units */
/* For type == WRAP_BOX_PANGO */
PangoGlyphItem *glyph_item;
char *text;
};
struct wrap_line
{
int width;
int height; /* Pango units */
int ascent; /* Pango units */
int n_boxes;
int max_boxes;
struct wrap_box *boxes;
};
struct frame
{
struct frame **children;
int num_children;
int max_children;
char *sc; /* Storycode */
size_t sc_len; /* Space allocated for sc */
cairo_surface_t *contents;
int n_lines;
int max_lines;
struct wrap_line *lines;
size_t pos;
struct layout_parameters lop;
struct style *style; /* Non-NULL if 'lop' came from SS */
/* The rectangle allocated to this frame, determined by the renderer */
double x;
double y;
double w;
double h;
PangoLayout *pl;
/* True if this frame should be deleted on the next mouse click */
int empty;
};
extern struct frame *frame_new(void);
extern struct frame *add_subframe(struct frame *fr);
extern struct frame *sc_unpack(const char *sc);
#endif /* FRAME_H */
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