Add some debug composable to measure manually items on Preview.
This commit is contained in:
Benoit Marty
committed by
Benoit Marty
Benoit Marty
parent
e4aae094c2
commit
acc9225e94
@@ -0,0 +1,82 @@
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/*
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* Copyright (c) 2023 New Vector Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package io.element.android.libraries.designsystem.ruler
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import androidx.compose.foundation.background
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import androidx.compose.foundation.layout.Row
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import androidx.compose.foundation.layout.Spacer
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import androidx.compose.foundation.layout.fillMaxWidth
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import androidx.compose.foundation.layout.size
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import androidx.compose.runtime.Composable
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.compose.ui.unit.Dp
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import androidx.compose.ui.unit.dp
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import io.element.android.libraries.designsystem.preview.ElementPreviewDark
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import io.element.android.libraries.designsystem.preview.ElementPreviewLight
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/**
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* Horizontal ruler is a debug composable that displays a horizontal ruler.
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* It can be used to display the horizontal ruler in the composable preview.
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*/
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@Composable
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fun HorizontalRuler(
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modifier: Modifier = Modifier,
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) {
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val baseColor = Color.Magenta
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val alphaBaseColor = baseColor.copy(alpha = 0.2f)
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Row(modifier = modifier.fillMaxWidth()) {
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repeat(50) {
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HorizontalRulerItem(1.dp, alphaBaseColor)
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HorizontalRulerItem(2.dp, baseColor)
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HorizontalRulerItem(1.dp, alphaBaseColor)
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HorizontalRulerItem(2.dp, baseColor)
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HorizontalRulerItem(5.dp, alphaBaseColor)
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HorizontalRulerItem(2.dp, baseColor)
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HorizontalRulerItem(1.dp, alphaBaseColor)
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HorizontalRulerItem(2.dp, baseColor)
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HorizontalRulerItem(1.dp, alphaBaseColor)
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HorizontalRulerItem(10.dp, baseColor)
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}
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}
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}
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@Composable
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private fun HorizontalRulerItem(height: Dp, color: Color) {
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Spacer(
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modifier = Modifier
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.size(height = height, width = 1.dp)
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.background(color = color)
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)
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}
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@Preview
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@Composable
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internal fun HorizontalRulerLightPreview() =
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ElementPreviewLight { ContentToPreview() }
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@Preview
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@Composable
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internal fun HorizontalRulerDarkPreview() =
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ElementPreviewDark { ContentToPreview() }
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@Composable
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private fun ContentToPreview() {
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HorizontalRuler()
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}
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@@ -0,0 +1,81 @@
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/*
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* Copyright (c) 2023 New Vector Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package io.element.android.libraries.designsystem.ruler
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import androidx.compose.foundation.background
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import androidx.compose.foundation.layout.Column
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import androidx.compose.foundation.layout.Spacer
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import androidx.compose.foundation.layout.fillMaxHeight
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import androidx.compose.foundation.layout.size
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import androidx.compose.runtime.Composable
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.compose.ui.unit.Dp
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import androidx.compose.ui.unit.dp
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import io.element.android.libraries.designsystem.preview.ElementPreviewDark
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import io.element.android.libraries.designsystem.preview.ElementPreviewLight
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/**
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* Vertical ruler is a debug composable that displays a vertical ruler.
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* It can be used to display the vertical ruler in the composable preview.
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*/
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@Composable
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fun VerticalRuler(
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modifier: Modifier = Modifier,
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) {
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val baseColor = Color.Red
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val alphaBaseColor = baseColor.copy(alpha = 0.2f)
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Column(modifier = modifier.fillMaxHeight()) {
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repeat(50) {
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VerticalRulerItem(1.dp, alphaBaseColor)
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VerticalRulerItem(2.dp, baseColor)
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VerticalRulerItem(1.dp, alphaBaseColor)
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VerticalRulerItem(2.dp, baseColor)
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VerticalRulerItem(5.dp, alphaBaseColor)
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VerticalRulerItem(2.dp, baseColor)
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VerticalRulerItem(1.dp, alphaBaseColor)
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VerticalRulerItem(2.dp, baseColor)
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VerticalRulerItem(1.dp, alphaBaseColor)
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VerticalRulerItem(10.dp, baseColor)
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}
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}
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}
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@Composable
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private fun VerticalRulerItem(width: Dp, color: Color) {
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Spacer(
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modifier = Modifier
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.size(height = 1.dp, width = width)
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.background(color = color)
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)
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}
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@Preview
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@Composable
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internal fun VerticalRulerLightPreview() =
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ElementPreviewLight { ContentToPreview() }
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@Preview
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@Composable
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internal fun VerticalRulerDarkPreview() =
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ElementPreviewDark { ContentToPreview() }
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@Composable
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private fun ContentToPreview() {
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VerticalRuler()
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}
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@@ -0,0 +1,80 @@
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/*
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* Copyright (c) 2023 New Vector Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package io.element.android.libraries.designsystem.ruler
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import androidx.compose.runtime.Composable
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import androidx.compose.ui.layout.Layout
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.compose.ui.unit.Dp
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import androidx.compose.ui.unit.dp
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import io.element.android.libraries.designsystem.preview.ElementPreviewDark
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import io.element.android.libraries.designsystem.preview.ElementPreviewLight
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import io.element.android.libraries.designsystem.theme.components.OutlinedButton
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import io.element.android.libraries.designsystem.theme.components.Text
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/**
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* Debug tool to add a vertical and a horizontal ruler on top of the content.
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*/
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@Composable
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fun WithRulers(
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xRulersOffset: Dp = 0.dp,
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yRulersOffset: Dp = 0.dp,
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content: @Composable () -> Unit
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) {
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Layout(
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content = {
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content()
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VerticalRuler()
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HorizontalRuler()
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},
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measurePolicy = { measurables, constraints ->
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val placeables = measurables.map { it.measure(constraints) }
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// Use layout size of the first item (the content)
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layout(
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width = placeables.first().width,
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height = placeables.first().height
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) {
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placeables.forEachIndexed { index, placeable ->
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if (index == 0) {
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placeable.place(0, 0)
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} else {
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placeable.place(xRulersOffset.roundToPx(), yRulersOffset.roundToPx())
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}
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}
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}
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}
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)
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}
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@Preview
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@Composable
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internal fun WithRulerLightPreview() =
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ElementPreviewLight { ContentToPreview() }
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@Preview
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@Composable
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internal fun WithRulerDarkPreview() =
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ElementPreviewDark { ContentToPreview() }
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@Composable
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private fun ContentToPreview() {
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WithRulers(xRulersOffset = 20.dp, yRulersOffset = 15.dp) {
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OutlinedButton(onClick = {}) {
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Text(text = "A Button with rulers on it!")
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}
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}
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}
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