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package org.libreoffice;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Color;
import androidx.recyclerview.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageButton;
public class ColorPickerAdapter extends RecyclerView.Adapter<ColorPickerAdapter.ColorPickerViewHolder> {
private final Context mContext;
private final ColorPaletteAdapter colorPaletteAdapter;
private final ColorPaletteListener colorPaletteListener;
private final int[] colorList;
private final int[][] colorPalette = new int[11][8];
public ColorPickerAdapter(Context mContext, final ColorPaletteAdapter colorPaletteAdapter, ColorPaletteListener colorPaletteListener) {
this.mContext = mContext;
this.colorPaletteAdapter = colorPaletteAdapter;
this.colorPaletteListener = colorPaletteListener;
Resources r = mContext.getResources();
this.colorList = r.getIntArray(R.array.fontcolors);
initializeColorPalette();
}
@Override
public ColorPickerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View item = LayoutInflater.from(mContext).inflate(R.layout.colorbox, parent, false);
return new ColorPickerViewHolder(item);
}
@Override
public void onBindViewHolder(final ColorPickerViewHolder holder, int position) {
holder.colorBox.setBackgroundColor(colorList[position]);
if (colorPaletteAdapter.getUpperSelectedBox() == position
&& colorPaletteAdapter.getSelectedBox() >= 0) {
holder.colorBox.setImageResource(R.drawable.ic_done_white_12dp);
} else {
holder.colorBox.setImageDrawable(null);
}
holder.colorBox.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
LibreOfficeMainActivity.setDocumentChanged(true);
setPosition(holder.getAdapterPosition());
colorPaletteListener.applyColor(colorList[holder.getAdapterPosition()]);
}
});
}
@Override
public int getItemCount() {
return colorList.length;
}
private void setPosition(int position) {
selectSubColor(position, position==0?0:3);
colorPaletteListener.applyColor(colorList[position]);
updateAdapter();
}
/**
* Switches to first palette, but doesn't mark any color as selected.
* Use this if no color in the palette matches the actual one.
*/
public void unselectColors() {
colorPaletteAdapter.changePosition(0, -1);
updateAdapter();
}
private void selectSubColor(int position1, int position2) {
colorPaletteAdapter.setPosition(position1, position2);
}
private void initializeColorPalette() {
for (int i = 0; i < 11; i++) {
int red = Color.red(colorList[i]);
int green = Color.green(colorList[i]);
int blue = Color.blue(colorList[i]);
int red_tint = red;
int green_tint = green;
int blue_tint = blue;
int red_shade = red;
int green_shade = green;
int blue_shade = blue;
if (i == 0) {
colorPalette[0][0] = colorList[i];
for (int k = 1; k < 7; k++) {
red_tint = (int) (red_tint + (255 - red_tint) * 0.25);
green_tint = (int) (green_tint + (255 - green_tint) * 0.25);
blue_tint = (int) (blue_tint + (255 - blue_tint) * 0.25);
colorPalette[i][k] = (Color.rgb(red_tint, green_tint, blue_tint));
}
} else {
colorPalette[i][3] = colorList[i];
for (int k = 2; k >= 0; k--) {
red_shade = (int) (red_shade * 0.75);
green_shade = (int) (green_shade * 0.75);
blue_shade = (int) (blue_shade * 0.75);
colorPalette[i][k] = (Color.rgb(red_shade, green_shade, blue_shade));
}
for (int k = 4; k < 7; k++) {
red_tint = (int) (red_tint + (255 - red_tint) * 0.45);
green_tint = (int) (green_tint + (255 - green_tint) * 0.45);
blue_tint = (int) (blue_tint + (255 - blue_tint) * 0.45);
colorPalette[i][k] = (Color.rgb(red_tint, green_tint, blue_tint));
}
}
colorPalette[i][7] = Color.WHITE; // last one is always white
}
colorPaletteAdapter.setColorPalette(colorPalette);
}
public void findSelectedTextColor(int color) {
// try to find and highlight the color in the existing palettes
for (int i = 0; i < 11; i++) {
for (int k = 0; k < 8; k++) {
if (colorPalette[i][k] == color) {
colorPaletteAdapter.changePosition(i, k);
updateAdapter();
return;
}
}
}
// no color in the palettes matched
unselectColors();
}
private void updateAdapter(){
LOKitShell.getMainHandler().post(new Runnable() {
@Override
public void run() {
ColorPickerAdapter.this.notifyDataSetChanged();
}
});
}
class ColorPickerViewHolder extends RecyclerView.ViewHolder {
ImageButton colorBox;
public ColorPickerViewHolder(View itemView) {
super(itemView);
this.colorBox = itemView.findViewById(R.id.fontColorBox);
}
}
}
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