1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/*
* sc_editor.h
*
* Copyright © 2014-2016 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 SC_EDITOR_H
#define SC_EDITOR_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gtk/gtk.h>
#include <glib-object.h>
#include "frame.h"
#include "sc_interp.h"
struct presentation;
#define SC_TYPE_EDITOR (sc_editor_get_type())
#define SC_EDITOR(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), \
SC_TYPE_EDITOR, SCEditor))
#define SC_IS_EDITOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), \
SC_TYPE_EDITOR))
#define SC_EDITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((obj), \
SC_TYPE_EDITOR, SCEditorClass))
#define SC_IS_EDITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((obj), \
SC_TYPE_EDITOR))
#define SC_EDITOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), \
SC_TYPE_EDITOR, SCEditorClass))
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,
};
struct _sceditor
{
GtkDrawingArea parent_instance;
PangoLanguage *lang;
/*< private >*/
GtkIMContext *im_context;
int w; /* Surface size in pixels */
int h;
double log_w; /* Size of surface in "SC units" */
double log_h;
SCBlock *scblocks;
SCBlock **stylesheets;
ImageStore *is;
SCCallbackList *cbl;
struct frame *top;
int para_highlight;
/* Redraw/scroll stuff */
GtkScrollablePolicy hpol;
GtkScrollablePolicy vpol;
GtkAdjustment *hadj;
GtkAdjustment *vadj;
double scroll_pos;
double h_scroll_pos;
int visible_height;
int visible_width;
int flow;
/* Pointers to the frame currently being edited */
struct frame *selection;
int top_editable;
PangoContext *pc;
/* Location of the cursor */
struct frame *cursor_frame;
int cursor_para; /* paragraph index */
size_t cursor_pos; /* byte offset into paragraph */
int cursor_trail;
/* Border surrounding actual slide within drawingarea */
double border_offs_x;
double border_offs_y;
double min_border;
double bgcol[3];
GdkPixbuf *bg_pixbuf;
/* 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;
/* Stuff that doesn't really belong here */
int slidenum;
};
struct _sceditorclass
{
GtkDrawingAreaClass parent_class;
};
typedef struct _sceditor SCEditor;
typedef struct _sceditorclass SCEditorClass;
extern void sc_editor_set_scblock(SCEditor *e, SCBlock *scblocks);
extern SCBlock *sc_editor_get_scblock(SCEditor *e);
extern GtkWidget *sc_editor_get_widget(SCEditor *e);
extern SCEditor *sc_editor_new(SCBlock *scblocks, SCBlock **stylesheets,
PangoLanguage *lang);
extern void sc_editor_set_size(SCEditor *e, int w, int h);
extern void sc_editor_set_logical_size(SCEditor *e, double w, double h);
extern void sc_editor_set_flow(SCEditor *e, int flow);
extern void sc_editor_redraw(SCEditor *e);
extern void sc_editor_set_background(SCEditor *e, double r, double g, double b);
extern void sc_editor_set_slidenum(SCEditor *e, int slidenum);
extern void sc_editor_set_min_border(SCEditor *e, double min_border);
extern void sc_editor_set_top_frame_editable(SCEditor *e,
int top_frame_editable);
extern void sc_editor_set_callbacks(SCEditor *e, SCCallbackList *cbl);
extern void sc_editor_delete_selected_frame(SCEditor *e);
extern void sc_editor_remove_cursor(SCEditor *e);
extern SCBlock *split_paragraph_at_cursor(SCEditor *e);
extern void sc_editor_set_para_highlight(SCEditor *e, int para_highlight);
extern int sc_editor_get_cursor_para(SCEditor *e);
extern void *sc_editor_get_cursor_bvp(SCEditor *e);
extern void sc_editor_set_cursor_para(SCEditor *e, signed int pos);
extern int sc_editor_get_num_paras(SCEditor *e);
#endif /* SC_EDITOR_H */
|
