/
Divider.kt
318 lines (299 loc) · 11.1 KB
/
Divider.kt
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
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
/*
* Copyright (C) 2021 panpf <panpfpanpf@outlook.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.github.panpf.assemblyadapter.recycler.divider
import android.content.Context
import android.content.res.Resources
import android.graphics.Color
import android.graphics.drawable.ColorDrawable
import android.graphics.drawable.Drawable
import androidx.annotation.ColorInt
import androidx.annotation.ColorRes
import androidx.annotation.DrawableRes
import androidx.annotation.Px
import androidx.core.content.res.ResourcesCompat
import com.github.panpf.assemblyadapter.recycler.divider.internal.ClearlyDividerSize
import com.github.panpf.assemblyadapter.recycler.divider.internal.DividerSize
import com.github.panpf.assemblyadapter.recycler.divider.internal.ItemDivider
import com.github.panpf.assemblyadapter.recycler.divider.internal.VagueDividerSize
/**
* Used to allow users to define the style of the divider of the item
*/
interface Divider {
/**
* Convert to [ItemDivider]
*/
fun toItemDivider(context: Context): ItemDivider
companion object {
/**
* Create a transparent blank [Divider]. The size is specified by [vagueSize]
*
* @param vagueSize Define divider size. Please refer to [VagueDividerSize] for specific functions
* @param insets Define the spacing around Divider
*/
fun space(
@Px vagueSize: Int = (0.5f * Resources.getSystem().displayMetrics.density + 0.5f).toInt(),
insets: Insets? = null,
): Divider = DividerImpl(
{ ColorDrawable(Color.TRANSPARENT) },
{ VagueDividerSize(vagueSize) },
insets
)
/**
* Create a [Divider] with the specified color. The size is specified by [vagueSize]
*
* @param vagueSize Define divider size. Please refer to [VagueDividerSize] for specific functions
* @param insets Define the spacing around Divider
*/
fun color(
@ColorInt color: Int,
@Px vagueSize: Int = (0.5f * Resources.getSystem().displayMetrics.density + 0.5f).toInt(),
insets: Insets? = null,
): Divider = DividerImpl(
{ ColorDrawable(color) },
{ VagueDividerSize(vagueSize) },
insets
)
/**
* Create a [Divider] with the specified color
*
* @param size Define divider size
* @param insets Define the spacing around Divider
*/
fun colorWithSize(
@ColorInt color: Int,
size: DividerSize,
insets: Insets? = null,
): Divider = DividerImpl(
{ ColorDrawable(color) },
{ size },
insets
)
/**
* Create a [Divider] with the specified color
*
* @param width Define divider width
* @param height Define divider height
* @param insets Define the spacing around Divider
*/
fun colorWithClearlySize(
@ColorInt color: Int,
@Px width: Int,
@Px height: Int,
insets: Insets? = null,
): Divider = DividerImpl(
{ ColorDrawable(color) },
{ ClearlyDividerSize(width, height) },
insets
)
/**
* Create a [Divider] with the specified color resource ID. The size is specified by [vagueSize]
*
* @param vagueSize Define divider size. Please refer to [VagueDividerSize] for specific functions
* @param insets Define the spacing around Divider
*/
fun colorRes(
@ColorRes colorResId: Int,
@Px vagueSize: Int = (0.5f * Resources.getSystem().displayMetrics.density + 0.5f).toInt(),
insets: Insets? = null,
): Divider = DividerImpl(
{ context ->
ColorDrawable(ResourcesCompat.getColor(context.resources, colorResId, null))
},
{ VagueDividerSize(vagueSize) },
insets
)
/**
* Create a [Divider] with the specified color resource ID
*
* @param size Define divider size
* @param insets Define the spacing around Divider
*/
fun colorResWithSize(
@ColorRes colorResId: Int,
size: DividerSize,
insets: Insets? = null,
): Divider = DividerImpl(
{ context ->
ColorDrawable(ResourcesCompat.getColor(context.resources, colorResId, null))
},
{ size },
insets
)
/**
* Create a [Divider] with the specified color resource ID
*
* @param width Define divider width
* @param height Define divider height
* @param insets Define the spacing around Divider
*/
fun colorResWithClearlySize(
@ColorRes colorResId: Int,
@Px width: Int,
@Px height: Int,
insets: Insets? = null,
): Divider = DividerImpl(
{ context ->
ColorDrawable(ResourcesCompat.getColor(context.resources, colorResId, null))
},
{ ClearlyDividerSize(width, height) },
insets
)
/**
* Create a [Divider] with the specified Drawable. The size is specified by [vagueSize]
*
* @param vagueSize Define divider size. Please refer to [VagueDividerSize] for specific functions
* @param insets Define the spacing around Divider
*/
fun drawable(
dividerDrawable: Drawable,
@Px vagueSize: Int = -1,
insets: Insets? = null,
): Divider = DividerImpl(
{ dividerDrawable },
{ drawable ->
if (vagueSize > 0) {
VagueDividerSize(vagueSize)
} else {
ClearlyDividerSize(drawable.intrinsicWidth, drawable.intrinsicHeight)
}
},
insets
)
/**
* Create a [Divider] with the specified Drawable
*
* @param size Define the size of the divider
* @param insets Define the spacing around Divider
*/
fun drawableWithSize(
dividerDrawable: Drawable,
size: DividerSize,
insets: Insets? = null,
): Divider = DividerImpl(
{ dividerDrawable },
{ size },
insets
)
/**
* Create a [Divider] with the specified Drawable
*
* @param width Define the width of the divider. The default is -1, which means that
* the intrinsicWidth of the drawable is used as the divider width
* @param height Define the height of the divider. The default is -1, which means that
* the intrinsicHeight of the drawable is used as the divider height
* @param insets Define the spacing around Divider
*/
fun drawableWithClearlySize(
dividerDrawable: Drawable,
@Px width: Int = -1,
@Px height: Int = -1,
insets: Insets? = null,
): Divider = DividerImpl(
{ dividerDrawable },
{ drawable ->
ClearlyDividerSize(
width.takeIf { it > 0 } ?: drawable.intrinsicWidth,
height.takeIf { it > 0 } ?: drawable.intrinsicHeight
)
},
insets
)
/**
* Create a [Divider] with the specified Drawable resource ID. The size is specified by [vagueSize]
*
* @param vagueSize Define divider size. Please refer to [VagueDividerSize] for specific functions
* @param insets Define the spacing around Divider
*/
fun drawableRes(
@DrawableRes drawableResId: Int,
@Px vagueSize: Int = -1,
insets: Insets? = null,
): Divider = DividerImpl(
{ context ->
ResourcesCompat.getDrawable(context.resources, drawableResId, null)!!
},
{ drawable ->
if (vagueSize > 0) {
VagueDividerSize(vagueSize)
} else {
ClearlyDividerSize(drawable.intrinsicWidth, drawable.intrinsicHeight)
}
},
insets
)
/**
* Create a [Divider] with the specified Drawable resource ID
*
* @param size Define the size of the divider
* @param insets Define the spacing around Divider
*/
fun drawableResWithSize(
@DrawableRes drawableResId: Int,
size: DividerSize,
insets: Insets? = null,
): Divider = DividerImpl(
{ context ->
ResourcesCompat.getDrawable(context.resources, drawableResId, null)!!
},
{ size },
insets
)
/**
* Create a [Divider] with the specified Drawable resource ID
*
* @param width Define the width of the divider. The default is -1, which means that
* the intrinsicWidth of the drawable is used as the divider width
* @param height Define the height of the divider. The default is -1, which means that
* the intrinsicHeight of the drawable is used as the divider height
* @param insets Define the spacing around Divider
*/
fun drawableResWithClearlySize(
@DrawableRes drawableResId: Int,
@Px width: Int = -1,
@Px height: Int = -1,
insets: Insets? = null,
): Divider = DividerImpl(
{ context ->
ResourcesCompat.getDrawable(context.resources, drawableResId, null)!!
},
{ drawable ->
ClearlyDividerSize(
width.takeIf { it > 0 } ?: drawable.intrinsicWidth,
height.takeIf { it > 0 } ?: drawable.intrinsicHeight
)
},
insets
)
}
private class DividerImpl(
private val createDrawable: (context: Context) -> Drawable,
private val createSize: (drawable: Drawable) -> DividerSize,
private val insets: Insets?,
) : Divider {
override fun toItemDivider(context: Context): ItemDivider {
val drawable = createDrawable(context)
val dividerSize = createSize(drawable)
return ItemDivider(
drawable,
dividerSize,
insets?.start ?: 0,
insets?.top ?: 0,
insets?.end ?: 0,
insets?.bottom ?: 0
)
}
}
}