/
ColorGrid.java
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/
ColorGrid.java
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/*
* Copyright 2022 The Android Open Source Project
*
* 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 io.material.catalog.color;
import io.material.catalog.R;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.IdRes;
import androidx.annotation.NonNull;
import com.google.android.material.color.ColorRoles;
/** A class to form side-by-side color palettes. */
final class ColorGrid {
@NonNull private final MaterialColorSpec materialColorSpecAccent;
@NonNull private final MaterialColorSpec materialColorSpecOnAccent;
@NonNull private final MaterialColorSpec materialColorSpecAccentContainer;
@NonNull private final MaterialColorSpec materialColorSpecOnAccentContainer;
static ColorGrid createFromColorGridData(Context context, ColorGridData colorGridData) {
ColorRoles colorRoles = colorGridData.getColorRoles();
ColorRoleNames colorRoleNames = colorGridData.getColorRoleNames();
MaterialColorSpec[] materialColorSpecs =
new MaterialColorSpec[] {
MaterialColorSpec.createFromColorValue(
colorRoleNames.getAccentName(), colorRoles.getAccent()),
MaterialColorSpec.createFromColorValue(
colorRoleNames.getOnAccentName(), colorRoles.getOnAccent()),
MaterialColorSpec.createFromColorValue(
colorRoleNames.getAccentContainerName(), colorRoles.getAccentContainer()),
MaterialColorSpec.createFromColorValue(
colorRoleNames.getOnAccentContainerName(), colorRoles.getOnAccentContainer()),
};
return new ColorGrid(
materialColorSpecs[0], materialColorSpecs[1], materialColorSpecs[2], materialColorSpecs[3]);
}
static ColorGrid createFromAttrResId(Context context, String[] colorNames, int[] attrResIds) {
if (colorNames.length < 4 || colorNames.length != attrResIds.length) {
throw new IllegalArgumentException(
"Color names need to be at least four and correspond to attribute resource ids.");
}
return new ColorGrid(
MaterialColorSpec.createFromAttrResId(context, colorNames[0], attrResIds[0]),
MaterialColorSpec.createFromAttrResId(context, colorNames[1], attrResIds[1]),
MaterialColorSpec.createFromAttrResId(context, colorNames[2], attrResIds[2]),
MaterialColorSpec.createFromAttrResId(context, colorNames[3], attrResIds[3]));
}
private ColorGrid(
@NonNull MaterialColorSpec materialColorSpecAccent,
@NonNull MaterialColorSpec materialColorSpecOnAccent,
@NonNull MaterialColorSpec materialColorSpecAccentContainer,
@NonNull MaterialColorSpec materialColorSpecOnAccentContainer) {
this.materialColorSpecAccent = materialColorSpecAccent;
this.materialColorSpecOnAccent = materialColorSpecOnAccent;
this.materialColorSpecAccentContainer = materialColorSpecAccentContainer;
this.materialColorSpecOnAccentContainer = materialColorSpecOnAccentContainer;
}
View renderView(Context context, ViewGroup container) {
View catalogColorsGrid =
LayoutInflater.from(context)
.inflate(R.layout.cat_colors_grid, container, /* attachToRoot= */ false);
bindColorSpecItem(catalogColorsGrid, R.id.cat_color_accent, materialColorSpecAccent);
bindColorSpecItem(catalogColorsGrid, R.id.cat_color_on_accent, materialColorSpecOnAccent);
bindColorSpecItem(
catalogColorsGrid, R.id.cat_color_accent_container, materialColorSpecAccentContainer);
bindColorSpecItem(
catalogColorsGrid, R.id.cat_color_on_accent_container, materialColorSpecOnAccentContainer);
return catalogColorsGrid;
}
private static void bindColorSpecItem(
View gridView, @IdRes int textViewId, MaterialColorSpec materialColorSpec) {
TextView colorSpec = gridView.findViewById(textViewId);
colorSpec.setText(materialColorSpec.getDescription());
colorSpec.setTextColor(ColorDemoUtils.getTextColor(materialColorSpec.getColorValue()));
colorSpec.setBackgroundColor(materialColorSpec.getColorValue());
}
}