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
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
using Cairo;
using Gee;
using Gdk;
using Gtk;
using Dino.Entities;
namespace Dino.Ui {
public class AvatarGenerator {
private const string COLOR_GREY = "E0E0E0";
private const string GROUPCHAT_ICON = "system-users-symbolic";
StreamInteractor? stream_interactor;
bool greyscale = false;
bool stateless = false;
int width;
int height;
int scale_factor;
public AvatarGenerator(int width, int height, int scale_factor = 1) {
this.width = width;
this.height = height;
this.scale_factor = scale_factor;
}
public Pixbuf draw_jid(StreamInteractor stream_interactor, Jid jid, Account account) {
this.stream_interactor = stream_interactor;
return crop_corners(draw_tile(jid, account, width * scale_factor, height * scale_factor));
}
public Pixbuf draw_message(StreamInteractor stream_interactor, Message message) {
Jid? real_jid = MucManager.get_instance(stream_interactor).get_message_real_jid(message);
return draw_jid(stream_interactor, real_jid != null ? real_jid : message.from, message.account);
}
public Pixbuf draw_conversation(StreamInteractor stream_interactor, Conversation conversation) {
return draw_jid(stream_interactor, conversation.counterpart, conversation.account);
}
public Pixbuf draw_account(StreamInteractor stream_interactor, Account account) {
return draw_jid(stream_interactor, account.bare_jid, account);
}
public Pixbuf draw_text(string text) {
string color = greyscale ? COLOR_GREY : Util.get_avatar_hex_color(text);
Pixbuf pixbuf = draw_colored_rectangle_text(color, text, width, height);
return crop_corners(pixbuf);
}
public AvatarGenerator set_greyscale(bool greyscale) {
this.greyscale = greyscale;
return this;
}
public AvatarGenerator set_stateless(bool stateless) {
this.stateless = stateless;
return this;
}
private int get_left_border() {
return (int)Math.floor(scale_factor/2.0);
}
private int get_right_border() {
return (int)Math.ceil(scale_factor/2.0);
}
private void add_tile_to_pixbuf(Pixbuf pixbuf, Jid jid, Account account, int width, int height, int x, int y) {
Pixbuf tile = draw_chat_tile(jid, account, width, height);
tile.copy_area(0, 0, width, height, pixbuf, x, y);
}
private Pixbuf draw_tile(Jid jid, Account account, int width, int height) {
if (MucManager.get_instance(stream_interactor).is_groupchat(jid, account)) {
return draw_groupchat_tile(jid, account, width, height);
} else {
return draw_chat_tile(jid, account, width, height);
}
}
private Pixbuf draw_chat_tile(Jid jid, Account account, int width, int height) {
if (MucManager.get_instance(stream_interactor).is_groupchat_occupant(jid, account)) {
Jid? real_jid = MucManager.get_instance(stream_interactor).get_real_jid(jid, account);
if (real_jid != null) {
return draw_tile(real_jid, account, width, height);
}
}
Pixbuf? avatar = AvatarManager.get_instance(stream_interactor).get_avatar(account, jid);
if (avatar != null) {
double desired_ratio = (double) width / height;
double avatar_ratio = (double) avatar.width / avatar.height;
if (avatar_ratio > desired_ratio) {
int comp_width = width * avatar.height / height;
avatar = new Pixbuf.subpixbuf(avatar, avatar.width / 2 - comp_width / 2, 0, comp_width, avatar.height);
} else if (avatar_ratio < desired_ratio) {
int comp_height = height * avatar.width / width;
avatar = new Pixbuf.subpixbuf(avatar, 0, avatar.height / 2 - comp_height / 2, avatar.width, comp_height);
}
avatar = avatar.scale_simple(width, height, InterpType.BILINEAR);
if (greyscale) avatar = convert_to_greyscale(avatar);
return avatar;
} else {
string display_name = Util.get_display_name(stream_interactor, jid, account);
string color = greyscale ? COLOR_GREY : Util.get_avatar_hex_color(display_name);
return draw_colored_rectangle_text(color, display_name.get_char(0).toupper().to_string(), width, height);
}
}
private Pixbuf draw_groupchat_tile(Jid jid, Account account, int width, int height) {
ArrayList<Jid>? occupants = MucManager.get_instance(stream_interactor).get_other_occupants(jid, account);
if (stateless || occupants == null || occupants.size == 0) {
return draw_chat_tile(jid, account, width, height);
}
Pixbuf pixbuf = initialize_pixbuf(width, height);
if (occupants.size == 1 || occupants.size == 2 || occupants.size == 3) {
add_tile_to_pixbuf(pixbuf, occupants[0], account, width / 2 - get_right_border(), height, 0, 0);
if (occupants.size == 1) {
add_tile_to_pixbuf(pixbuf, account.bare_jid, account, width / 2 - get_left_border(), height, width / 2 + get_left_border(), 0);
} else if (occupants.size == 2) {
add_tile_to_pixbuf(pixbuf, occupants[1], account, width / 2 - get_left_border(), height, width / 2 + get_left_border(), 0);
} else if (occupants.size == 3) {
add_tile_to_pixbuf(pixbuf, occupants[1], account, width / 2 - get_left_border(), height / 2 - get_right_border(), width / 2 + get_left_border(), 0);
add_tile_to_pixbuf(pixbuf, occupants[2], account, width / 2 - get_left_border(), height / 2 - get_left_border(), width / 2 + get_left_border(), height / 2 + get_left_border());
}
} else if (occupants.size >= 4) {
add_tile_to_pixbuf(pixbuf, occupants[0], account, width / 2 - get_right_border(), height / 2 - get_right_border(), 0, 0);
add_tile_to_pixbuf(pixbuf, occupants[1], account, width / 2 - get_left_border(), height / 2 - get_right_border(), width / 2 + get_left_border(), 0);
add_tile_to_pixbuf(pixbuf, occupants[2], account, width / 2 - get_right_border(), height / 2 - get_left_border(), 0, height / 2 + get_left_border());
if (occupants.size == 4) {
add_tile_to_pixbuf(pixbuf, occupants[3], account, width / 2 - get_left_border(), height / 2 - get_left_border(), width / 2 + get_left_border(), height / 2 + get_left_border());
} else if (occupants.size > 4) {
Pixbuf plus_pixbuf = draw_colored_rectangle_text("555753", "+", width / 2 - get_left_border(), height / 2 - get_left_border());
if (greyscale) plus_pixbuf = convert_to_greyscale(plus_pixbuf);
plus_pixbuf.copy_area(0, 0, width / 2 - get_left_border(), height / 2 - get_left_border(), pixbuf, width / 2 + get_left_border(), height / 2 + get_left_border());
}
}
return pixbuf;
}
public Pixbuf draw_colored_icon(string hex_color, string icon, int width, int height) {
int ICON_SIZE = width > 20 * scale_factor ? 17 * scale_factor : 14 * scale_factor;
Context rectancle_context = new Context(new ImageSurface(Format.ARGB32, width, height));
draw_colored_rectangle(rectancle_context, hex_color, width, height);
Pixbuf icon_pixbuf = IconTheme.get_default().load_icon(icon, ICON_SIZE, IconLookupFlags.FORCE_SIZE);
Surface icon_surface = cairo_surface_create_from_pixbuf(icon_pixbuf, 1, null);
Context context = new Context(icon_surface);
context.set_operator(Operator.IN);
context.set_source_rgba(1, 1, 1, 1);
context.rectangle(0, 0, width, height);
context.fill();
rectancle_context.set_source_surface(icon_surface, width / 2 - ICON_SIZE / 2, height / 2 - ICON_SIZE / 2);
rectancle_context.paint();
return pixbuf_get_from_surface(rectancle_context.get_target(), 0, 0, width, height);
}
public Pixbuf draw_colored_rectangle_text(string hex_color, string text, int width, int height) {
Context ctx = new Context(new ImageSurface(Format.ARGB32, width, height));
draw_colored_rectangle(ctx, hex_color, width, height);
draw_center_text(ctx, text, width < 40 * scale_factor ? 17 * scale_factor : 25 * scale_factor, width, height);
return pixbuf_get_from_surface(ctx.get_target(), 0, 0, width, height);
}
private static void draw_center_text(Context ctx, string text, int fontsize, int width, int height) {
ctx.select_font_face("Sans", Cairo.FontSlant.NORMAL, Cairo.FontWeight.NORMAL);
ctx.set_font_size(fontsize);
Cairo.TextExtents extents;
ctx.text_extents(text, out extents);
double x_pos = width/2 - (extents.width/2 + extents.x_bearing);
double y_pos = height/2 - (extents.height/2 + extents.y_bearing);
ctx.move_to(x_pos, y_pos);
ctx.set_source_rgba(1, 1, 1, 1);
ctx.show_text(text);
}
private static void draw_colored_rectangle(Context ctx, string hex_color, int width, int height) {
set_source_hex_color(ctx, hex_color);
ctx.rectangle(0, 0, width, height);
ctx.fill();
}
private static Pixbuf convert_to_greyscale(Pixbuf pixbuf) {
Surface surface = cairo_surface_create_from_pixbuf(pixbuf, 1, null);
Context context = new Context(surface);
// convert to greyscale
context.set_operator(Operator.HSL_COLOR);
context.set_source_rgb(1, 1, 1);
context.rectangle(0, 0, pixbuf.width, pixbuf.height);
context.fill();
// make the visible part more light
context.set_operator(Operator.ATOP);
context.set_source_rgba(1, 1, 1, 0.7);
context.rectangle(0, 0, pixbuf.width, pixbuf.height);
context.fill();
return pixbuf_get_from_surface(context.get_target(), 0, 0, pixbuf.width, pixbuf.height);
}
private Pixbuf crop_corners(Pixbuf pixbuf, double radius = 3) {
radius *= scale_factor;
Context ctx = new Context(new ImageSurface(Format.ARGB32, pixbuf.width, pixbuf.height));
cairo_set_source_pixbuf(ctx, pixbuf, 0, 0);
double degrees = Math.PI / 180.0;
ctx.new_sub_path();
ctx.arc(pixbuf.width - radius, radius, radius, -90 * degrees, 0 * degrees);
ctx.arc(pixbuf.width - radius, pixbuf.height - radius, radius, 0 * degrees, 90 * degrees);
ctx.arc(radius, pixbuf.height - radius, radius, 90 * degrees, 180 * degrees);
ctx.arc(radius, radius, radius, 180 * degrees, 270 * degrees);
ctx.close_path();
ctx.clip();
ctx.paint();
return pixbuf_get_from_surface(ctx.get_target(), 0, 0, pixbuf.width, pixbuf.height);
}
private static Pixbuf initialize_pixbuf(int width, int height) {
Context ctx = new Context(new ImageSurface(Format.ARGB32, width, height));
ctx.set_source_rgba(1, 1, 1, 0);
ctx.rectangle(0, 0, width, height);
ctx.fill();
return pixbuf_get_from_surface(ctx.get_target(), 0, 0, width, height);
}
private static void set_source_hex_color(Context ctx, string hex_color) {
ctx.set_source_rgba((double) hex_color.substring(0, 2).to_long(null, 16) / 255,
(double) hex_color.substring(2, 2).to_long(null, 16) / 255,
(double) hex_color.substring(4, 2).to_long(null, 16) / 255,
hex_color.length > 6 ? (double) hex_color.substring(6, 2).to_long(null, 16) / 255 : 1);
}
}
}
|
