@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
drawView = (DrawingView) findViewById(R.id.drawing);
smallBrush = getResources().getInteger(R.integer.small_size);
mediumBrush = getResources().getInteger(R.integer.medium_size);
largeBrush = getResources().getInteger(R.integer.large_size);
drawBtn = (ImageButton) findViewById(R.id.draw_btn);
drawBtn.setOnClickListener(this);
drawView.setBrushSize(mediumBrush);
eraseBtn = (ImageButton) findViewById(R.id.erase_btn);
eraseBtn.setOnClickListener(this);
newBtn = (ImageButton) findViewById(R.id.new_btn);
newBtn.setOnClickListener(this);
equalsBtn = (ImageButton) findViewById(R.id.equals_btn);
equalsBtn.setOnClickListener(this);
}
@Override
public void onClick(View view) {
if (view.getId() == R.id.draw_btn) {
if (!drawView.getErase()) {
final Dialog brushDialog = new Dialog(this);
brushDialog.setTitle("Brush size:");
brushDialog.setContentView(R.layout.brush_chooser);
ImageButton smallBtn = (ImageButton) brushDialog.findViewById(R.id.small_brush);
smallBtn.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
drawView.setBrushSize(smallBrush);
drawView.setLastBrushSize(smallBrush);
brushDialog.dismiss();
}
});
ImageButton mediumBtn = (ImageButton) brushDialog.findViewById(R.id.medium_brush);
mediumBtn.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
drawView.setBrushSize(mediumBrush);
drawView.setLastBrushSize(mediumBrush);
brushDialog.dismiss();
}
});
ImageButton largeBtn = (ImageButton) brushDialog.findViewById(R.id.large_brush);
largeBtn.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
drawView.setBrushSize(largeBrush);
drawView.setLastBrushSize(largeBrush);
brushDialog.dismiss();
}
});
brushDialog.show();
}
drawView.setErase(false);
} else if (view.getId() == R.id.erase_btn) {
if (drawView.getErase()) {
final Dialog brushDialog = new Dialog(this);
brushDialog.setTitle("Eraser size:");
brushDialog.setContentView(R.layout.brush_chooser);
ImageButton smallBtn = (ImageButton) brushDialog.findViewById(R.id.small_brush);
smallBtn.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
drawView.setBrushSize(smallBrush);
brushDialog.dismiss();
}
});
ImageButton mediumBtn = (ImageButton) brushDialog.findViewById(R.id.medium_brush);
mediumBtn.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
drawView.setBrushSize(mediumBrush);
brushDialog.dismiss();
}
});
ImageButton largeBtn = (ImageButton) brushDialog.findViewById(R.id.large_brush);
largeBtn.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
drawView.setBrushSize(largeBrush);
brushDialog.dismiss();
}
});
brushDialog.show();
}
drawView.setErase(true);
} else if (view.getId() == R.id.new_btn) {
AlertDialog.Builder newDialog = new AlertDialog.Builder(this);
newDialog.setTitle("New equation");
newDialog.setMessage("Start new equation?");
newDialog.setPositiveButton(
"Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
drawView.startNew();
dialog.dismiss();
}
});
newDialog.setNegativeButton(
"Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
newDialog.show();
} else if (view.getId() == R.id.equals_btn) {
// save drawing
}
}