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
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263var pageClass = {
    new : func (d) {
        var m = { parents : [pageClass] };
        m.page = d.display.display.createGroup().set('z-index', 100);
        m.window = {};
        m.state = {};
        m.selected = '';
        return m;
    },

    del : func (id = nil) {
        if (id != nil and typeof(id) == 'scalar') {
            delete(me.state, id);
            var _id = id ~ '-';
            id = [];
            foreach (var w; keys(me.window))
                if (find(_id, w) == 0)
                    append(id, w);
        }
        else {
            foreach (var s; keys(me.state))
                delete(me.state, s);
            id = keys(me.window);
        }
        foreach (var w; id) {
            me.window[w]
                .hide()
                .del();
            delete(me.window, w);
        }
    },

    _selected_text : func (id, text, x, y) {
        me.selected = id;
        me.window[id]
            .setFontSize(16)
            .setFont('LiberationFonts/LiberationMono-Regular.ttf')
            .setTranslation(x, y)
            .setDrawMode(0x01 + 0x04)
            .setText(text)
            .setColorFill(0,0,0)
            .setColor(1,0,0);
    },

    _editable_text : func (id, text, x, y) {
        me.window[id]
            .setFontSize(16)
            .setFont('LiberationFonts/LiberationMono-Regular.ttf')
            .setTranslation(x, y)
            .setText(text)
            .setColorFill(0,0,0)
            .setColor(0,1,1);
    },

    _normal_text : func (id, text, x, y) {
        me.window[id]
            .setFontSize(16)
            .setFont('LiberationFonts/LiberationMono-Regular.ttf')
            .setTranslation(x, y)
            .setText(text)
            .setColorFill(0,0,0)
            .setColor(1,1,1);
    },

    _title_text : func (id, text, x, y) {
        me.window[id]
            .setFontSize(16)
            .setFont('LiberationFonts/LiberationMono-Regular.ttf')
            .setTranslation(x, y)
            .setAlignment('center-center')
            .setText(text)
            .setColorFill(0,0,0)
            .setColor(0,1,1);
    },

    fill : func (id, scroll = nil) {
        var state = me.state[id];
        state.scroll = {
            offset : 0,           # offset between canvas element and state element
            last : 9999,          # last scrollgroup
            begin: -9999,         # first canvas element of the scrolling area
            end: 9999,            # last canvas element of the scrolling area
            upper: -9999,         # group printed on the top of the scrolling area
            lower: 9999,          # group printed at the bottom of the scrolling area
            lines : scroll != nil ? scroll.lines : 0, # number of lines for the scrolling area
            columns : scroll != nil ? scroll.columns : 0, # number of objects on each scrolling lines
        };
        var scrollgroup = {};
        forindex (var line; state.objects) {
            if (find('separator', state.objects[line].type) > -1) {
                me.window[id ~ '-' ~ (line - state.scroll.offset)] = me.page.createChild('path')
                    .setStrokeLineWidth(1)
                    .moveTo(state.x_base, state.geometry.y - 12)
                    .horiz(state.geometry.w - 20)
                    .setColor(1,1,1);
                state.geometry.x = state.x_base;
                state.geometry.y += 8;
            }
            else {
                if (contains(state.objects[line], 'scrollgroup')) {
                    state.scroll.last = state.objects[line].scrollgroup;
                    scrollgroup[state.objects[line].scrollgroup] = 1;
                    if (state.scroll.begin == -9999) {
                        state.scroll.begin = line;
                        state.scroll.upper = state.objects[line].scrollgroup;
                    }
                    if (size(keys(scrollgroup)) > state.scroll.lines) {
                        if (state.scroll.end == 9999) {
                            state.scroll.end = line - 1;
                            state.scroll.lower = state.objects[line - 1].scrollgroup;
                        }
                        else
                            state.scroll.last = state.objects[line].scrollgroup;
                        state.scroll.offset += 1;
                        continue;
                    }
                }
                me.window[id ~ '-' ~ (line - state.scroll.offset)] = me.page.createChild('text');
                if (find('selected', state.objects[line].type) > -1)
                    me._selected_text(
                            id ~ '-' ~ (line - state.scroll.offset),
                            state.objects[line].text,
                            state.geometry.x,
                            state.geometry.y,
                            );

                elsif (find('editable', state.objects[line].type) > -1
                   or  find('highlighted', state.objects[line].type) > -1)
                    me._editable_text(
                            id ~ '-' ~ (line - state.scroll.offset),
                            state.objects[line].text,
                            state.geometry.x,
                            state.geometry.y,
                            );

                elsif (find('title', state.objects[line].type) > -1)
                    me._title_text(
                            id ~ '-' ~ (line - state.scroll.offset),
                            state.objects[line].text,
                            state.x_base - 10 + state.geometry.w / 2,
                            state.geometry.y
                        );

                else
                    me._normal_text(
                            id ~ '-' ~ (line - state.scroll.offset),
                            state.objects[line].text,
                            state.geometry.x,
                            state.geometry.y,
                            );


                if (find('end-of-line', state.objects[line].type) > -1
                or  find('title', state.objects[line].type) > -1) {
                    state.geometry.x = state.x_base;
                    state.geometry.y += 24;
                }
                else
                    state.geometry.x += size(state.objects[line].text) * 10 + 8;
            }
        }
        # reset the scrolling offset before the first move
        state.scroll.offset = 0;
    },
    
    draw : func (id, geometry, objects = nil, scroll = nil) {
        if (typeof(geometry) == 'vector') {
            if (typeof(objects) == 'hash')
                scroll = objects;
            objects  = geometry;
            geometry = {autogeom: 1};
        }

        if (contains(me.window, id ~ '-bg')) {
            logprint(LOG_DEBUG, 'objet ' ~ id ~ ' already exists');
            return;
        }
        if (!contains(geometry, 'sep'))
            geometry.sep = 0;
        if (contains(geometry, 'autogeom') and geometry.autogeom) {
            # 1024x768 display
            # - let 10 from the border
            # - plus other 10 from the window border and the text
            # - font size tends to be 10x24
            # - let 8+8 around the separator
            var textWidth = 0;
            var lines = 0;
            var _textWidth = 0;
            forindex (var o; objects) {
                if (find('end-of-line', objects[o].type) > -1) {
                    if (scroll != nil and contains(scroll, 'lines')) {
                        if (contains(objects[o], 'scrollgroup')) {
                            if (objects[o].scrollgroup < scroll.lines)
                                lines += 1;
                            _textWidth += size(objects[o].text) * 10;
                            if (_textWidth > textWidth) textWidth = _textWidth;
                            _textWidth = 0;
                        }
                        else {
                            lines += 1;
                            _textWidth += size(objects[o].text) * 10;
                            if (_textWidth > textWidth) textWidth = _textWidth;
                            _textWidth = 0;
                        }
                    }
                    else {
                        lines += 1;
                        _textWidth += size(objects[o].text) * 10;
                        if (_textWidth > textWidth) textWidth = _textWidth;
                        _textWidth = 0;
                    }
                }
                elsif (objects[o].type == 'title') {
                    lines += 1;
                    _textWidth = size(objects[o].text) * 10;
                    if (_textWidth > textWidth) textWidth = _textWidth;
                    _textWidth = 0;
                }
                elsif (objects[o].type != 'separator') {
                    _textWidth += size(objects[o].text) * 10;
                }

                if (contains(objects[o], 'type') and objects[o].type == 'separator')
                    geometry.sep += 1;
            }
            if (!contains(geometry, 'l')) geometry.l = lines;
            if (!contains(geometry, 'x')) geometry.x = 1014 - textWidth;
            if (!contains(geometry, 'y')) geometry.y = 758 - (lines * 24) - 72; # 72 = offset from bottom to let softkeys display and margin
            if (!contains(geometry, 'w')) geometry.w = textWidth;
        }
        if (!contains(geometry, 'h') and !contains(geometry, 'l')) {
            logprint(LOG_DEBUG, 'missing parameter l or h');
            return;
        }

        var save_x = geometry.x;
        var save_y = geometry.y;
        if (!geometry.sep)
            geometry.sep = 1;
        me.state[id] = {
            objects: objects,
            geometry: geometry,
            x_base : geometry.x + 10,
            h_max : contains(geometry, 'h') ? h : geometry.l * 24 + 8 + geometry.sep * 16,
        };

        logprint(LOG_DEBUG, sprintf('geom id: %s, x: %d, y: %d, w: %d, h: %d, l: %d, sep: %d',
                 id, geometry.x, geometry.y, geometry.w, me.state[id].h_max, geometry.l, geometry.sep));
        me.state[id].y_max = me.state[id].h_max + me.state[id].geometry.y;
        me.window[id ~ '-bg'] = me.page.createChild('path');
        me.window[id ~ '-bg']
            .rect(geometry.x, geometry.y,
                  geometry.w, me.state[id].h_max)
            .setColor(1,1,1)
            .setColorFill(0,0,0);
        me.state[id].geometry.x += 10;
        me.state[id].geometry.y += 16;
        me.fill(id, scroll);
        geometry.x = save_x;
        geometry.y = save_y;
    },
};