1 files changed, 162 insertions, 0 deletions
diff --git a/android/source/src/java/org/libreoffice/ColorPickerAdapter.java b/android/source/src/java/org/libreoffice/ColorPickerAdapter.java
new file mode 100644
index 000000000..a17dd264f
--- /dev/null
+++ b/android/source/src/java/org/libreoffice/ColorPickerAdapter.java
@@ -0,0 +1,162 @@
+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);
+        }
+    }
+}