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
|
/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-tk-lib
* Created on: 30 июл. 2020 г.
*
* lsp-tk-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-tk-lib 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-tk-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_TK_WIDGETS_COMPOUND_LISTBOX_H_
#define LSP_PLUG_IN_TK_WIDGETS_COMPOUND_LISTBOX_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
namespace lsp
{
namespace tk
{
class ListBoxItem;
// Style definition
namespace style
{
LSP_TK_STYLE_DEF_BEGIN(ListBox, WidgetContainer)
prop::SizeConstraints sSizeConstraints;
prop::Scrolling sHScrollMode;
prop::Scrolling sVScrollMode;
prop::RangeFloat sHScroll;
prop::RangeFloat sVScroll;
prop::Font sFont;
prop::Integer sBorderSize;
prop::Integer sBorderGap;
prop::Integer sBorderRadius;
prop::Color sBorderColor;
prop::Color sListBgColor;
prop::Integer sSpacing;
prop::Boolean sMultiSelect;
prop::Integer sHScrollSpacing;
prop::Integer sVScrollSpacing;
LSP_TK_STYLE_DEF_END
}
class ListBox: public WidgetContainer
{
private:
ListBox & operator = (const ListBox &);
ListBox(const ListBox &);
public:
static const w_class_t metadata;
protected:
typedef struct item_t
{
ws::rectangle_t a; // Allocated space for widget
ws::rectangle_t r; // Realized space for widget
size_t index; // Index of the widget
ListBoxItem *item; // Widget item contained in the cell
} item_t;
typedef struct alloc_t
{
lltl::darray<item_t> vItems; // Items
ssize_t wMinW; // Minimum width
ssize_t wMinH; // Minimum height
bool bHBar; // Horizontal scroll enabled
bool bVBar; // Vertical scroll enabled
ws::size_limit_t sSize; // Actual size
ws::rectangle_t sArea; // Area to display contents
ws::rectangle_t sList; // List to display contents
ws::rectangle_t sHBar; // Horizontal scroll bar
ws::rectangle_t sVBar; // Vertical scroll bar
} alloc_t;
enum scroll_t
{
SCR_NONE = 0,
SCR_UP = 1 << 0,
SCR_DOWN = 1 << 1,
SCR_KP_UP = 1 << 2,
SCR_KP_DOWN = 1 << 3,
SCR_PGUP = 1 << 4,
SCR_PGDOWN = 1 << 5,
SCR_KP_PGUP = 1 << 6,
SCR_KP_PGDOWN = 1 << 7,
SCR_LEFT = 1 << 8,
SCR_RIGHT = 1 << 9,
SCR_KP_LEFT = 1 << 10,
SCR_KP_RIGHT = 1 << 11,
SCR_SHIFT = 1 << 12,
SCR_CTRL = 1 << 13,
SCR_KEYMASK = 0xfff,
SCR_KEYMASK1 = 0x555,
SCR_KEYMASK2 = 0xaaa
};
enum flags_t
{
F_SEL_ACTIVE = 1 << 0,
F_SUBMIT = 1 << 1,
F_CHANGED = 1 << 2
};
protected:
size_t nBMask;
size_t nXFlags;
ssize_t nCurrIndex;
ssize_t nLastIndex;
size_t nKeyScroll; // Key scroll direction
ListBoxItem *pHoverItem; // Hover item
Timer sKeyTimer; // Key scroll timer
ScrollBar sHBar;
ScrollBar sVBar;
ws::rectangle_t sArea;
ws::rectangle_t sList;
lltl::darray<item_t> vVisible;
prop::WidgetList<ListBoxItem> vItems;
prop::WidgetSet<ListBoxItem> vSelected;
prop::CollectionListener sIListener;
prop::SizeConstraints sSizeConstraints;
prop::Scrolling sHScrollMode;
prop::Scrolling sVScrollMode;
prop::RangeFloat sHScroll;
prop::RangeFloat sVScroll;
prop::Font sFont;
prop::Integer sBorderSize;
prop::Integer sBorderGap;
prop::Integer sBorderRadius;
prop::Color sBorderColor;
prop::Color sListBgColor;
prop::Integer sSpacing;
prop::Boolean sMultiSelect;
prop::Integer sHScrollSpacing;
prop::Integer sVScrollSpacing;
protected:
void do_destroy();
void allocate_items(alloc_t *alloc);
void estimate_size(alloc_t *a, const ws::rectangle_t *xr);
void realize_children();
void keep_single_selection();
item_t *find_item(ssize_t x, ssize_t y);
item_t *find_by_index(ssize_t index);
void select_range(ssize_t first, ssize_t last, bool add);
void select_single(ssize_t index, bool add);
status_t on_key_scroll();
bool scroll_to_item(ssize_t vindex);
protected:
static status_t slot_on_scroll_change(Widget *sender, void *ptr, void *data);
static status_t slot_on_change(Widget *sender, void *ptr, void *data);
static status_t slot_on_submit(Widget *sender, void *ptr, void *data);
static status_t slot_on_scroll_key_down(Widget *sender, void *ptr, void *data);
static status_t slot_on_scroll_key_up(Widget *sender, void *ptr, void *data);
static void on_add_item(void *obj, Property *prop, void *w);
static void on_remove_item(void *obj, Property *prop, void *w);
static status_t key_scroll_handler(ws::timestamp_t sched, ws::timestamp_t time, void *arg);
protected:
virtual void property_changed(Property *prop);
virtual void size_request(ws::size_limit_t *r);
virtual void realize(const ws::rectangle_t *r);
public:
explicit ListBox(Display *dpy);
virtual ~ListBox();
virtual status_t init();
virtual void destroy();
public:
LSP_TK_PROPERTY(SizeConstraints, constraints, &sSizeConstraints)
LSP_TK_PROPERTY(Scrolling, hscroll_mode, &sHScrollMode)
LSP_TK_PROPERTY(Scrolling, vscroll_mode, &sVScrollMode)
LSP_TK_PROPERTY(RangeFloat, hscroll, &sHScroll)
LSP_TK_PROPERTY(RangeFloat, vscroll, &sVScroll)
LSP_TK_PROPERTY(StepFloat, hstep, sHBar.step())
LSP_TK_PROPERTY(StepFloat, vstep, sVBar.step())
LSP_TK_PROPERTY(StepFloat, haccel_step, sHBar.accel_step())
LSP_TK_PROPERTY(StepFloat, vaccel_step, sVBar.accel_step())
LSP_TK_PROPERTY(WidgetList<ListBoxItem>, items, &vItems)
LSP_TK_PROPERTY(WidgetSet<ListBoxItem>, selected, &vSelected)
LSP_TK_PROPERTY(Font, font, &sFont)
LSP_TK_PROPERTY(Integer, spacing, &sSpacing)
LSP_TK_PROPERTY(Integer, border_size, &sBorderSize)
LSP_TK_PROPERTY(Integer, border_gap, &sBorderGap)
LSP_TK_PROPERTY(Integer, border_radius, &sBorderRadius)
LSP_TK_PROPERTY(Color, border_color, &sBorderColor)
LSP_TK_PROPERTY(Color, list_bg_color, &sListBgColor)
LSP_TK_PROPERTY(Boolean, multi_select, &sMultiSelect)
LSP_TK_PROPERTY(Integer, hscroll_spacing, &sHScrollSpacing)
LSP_TK_PROPERTY(Integer, vscroll_spacing, &sVScrollSpacing)
public:
virtual Widget *find_widget(ssize_t x, ssize_t y);
virtual status_t add(Widget *child);
virtual status_t remove(Widget *child);
virtual status_t remove_all();
virtual void render(ws::ISurface *s, const ws::rectangle_t *area, bool force);
virtual void scroll_to_current();
virtual status_t on_mouse_down(const ws::event_t *e);
virtual status_t on_mouse_up(const ws::event_t *e);
virtual status_t on_mouse_out(const ws::event_t *e);
virtual status_t on_mouse_move(const ws::event_t *e);
virtual status_t on_mouse_scroll(const ws::event_t *e);
virtual status_t on_key_down(const ws::event_t *e);
virtual status_t on_key_up(const ws::event_t *e);
virtual status_t on_change();
virtual status_t on_submit();
};
} /* namespace tk */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_TK_WIDGETS_COMPOUND_LISTBOX_H_ */
|
