diff options
Diffstat (limited to 'src/com/android/calculator2/CalculatorText.java')
| -rw-r--r-- | src/com/android/calculator2/CalculatorText.java | 125 |
1 files changed, 59 insertions, 66 deletions
diff --git a/src/com/android/calculator2/CalculatorText.java b/src/com/android/calculator2/CalculatorText.java index c6f38ae..b41b6d3 100644 --- a/src/com/android/calculator2/CalculatorText.java +++ b/src/com/android/calculator2/CalculatorText.java @@ -20,8 +20,7 @@ import android.content.ClipData; import android.content.ClipboardManager; import android.content.Context; import android.content.res.TypedArray; -import android.graphics.Paint; -import android.net.Uri; +import android.text.Layout; import android.text.TextPaint; import android.text.method.ScrollingMovementMethod; import android.util.AttributeSet; @@ -38,26 +37,21 @@ import android.widget.TextView; */ public class CalculatorText extends AlignedTextView implements View.OnLongClickListener { - private ActionMode mActionMode; - private final ActionMode.Callback mPasteActionModeCallback = new ActionMode.Callback() { @Override public boolean onActionItemClicked(ActionMode mode, MenuItem item) { - switch (item.getItemId()) { - case R.id.menu_paste: - pasteContent(); + if (item.getItemId() == R.id.menu_paste) { + paste(); mode.finish(); return true; - default: - return false; } + return false; } @Override public boolean onCreateActionMode(ActionMode mode, Menu menu) { - ClipboardManager clipboard = - (ClipboardManager) getContext().getSystemService( - Context.CLIPBOARD_SERVICE); + final ClipboardManager clipboard = (ClipboardManager) getContext() + .getSystemService(Context.CLIPBOARD_SERVICE); if (clipboard.hasPrimaryClip()) { MenuInflater inflater = mode.getMenuInflater(); inflater.inflate(R.menu.paste, menu); @@ -68,75 +62,59 @@ public class CalculatorText extends AlignedTextView implements View.OnLongClickL } @Override - public void onDestroyActionMode(ActionMode mode) { - mActionMode = null; + public boolean onPrepareActionMode(ActionMode mode, Menu menu) { + return false; } @Override - public boolean onPrepareActionMode(ActionMode mode, Menu menu) { - return false; + public void onDestroyActionMode(ActionMode mode) { + mActionMode = null; } }; - private PasteListener mPasteListener; - - public void setPasteListener(PasteListener pasteListener) { - mPasteListener = pasteListener; - } - - private void pasteContent() { - ClipboardManager clipboard = - (ClipboardManager) getContext().getSystemService( - Context.CLIPBOARD_SERVICE); - ClipData cd = clipboard.getPrimaryClip(); - ClipData.Item item = cd.getItemAt(0); - // TODO: Should we handle multiple selections? - Uri uri = item.getUri(); - if (uri == null || !mPasteListener.paste(uri)) { - mPasteListener.paste(item.coerceToText(getContext()).toString()); - } - } + // Temporary paint for use in layout methods. + private final TextPaint mTempPaint = new TextPaint(); private final float mMaximumTextSize; private final float mMinimumTextSize; private final float mStepTextSize; - // Temporary paint for use in layout methods. - private final Paint mTempPaint = new TextPaint(); - private int mWidthConstraint = -1; + + private ActionMode mActionMode; + + private OnPasteListener mOnPasteListener; private OnTextSizeChangeListener mOnTextSizeChangeListener; public CalculatorText(Context context) { - this(context, null); + this(context, null /* attrs */); } public CalculatorText(Context context, AttributeSet attrs) { - this(context, attrs, 0); + this(context, attrs, 0 /* defStyleAttr */); } - public CalculatorText(Context context, AttributeSet attrs, int defStyle) { - super(context, attrs, defStyle); + public CalculatorText(Context context, AttributeSet attrs, int defStyleAttr) { + super(context, attrs, defStyleAttr); final TypedArray a = context.obtainStyledAttributes( - attrs, R.styleable.CalculatorText, defStyle, 0); + attrs, R.styleable.CalculatorText, defStyleAttr, 0); mMaximumTextSize = a.getDimension( R.styleable.CalculatorText_maxTextSize, getTextSize()); mMinimumTextSize = a.getDimension( R.styleable.CalculatorText_minTextSize, getTextSize()); mStepTextSize = a.getDimension(R.styleable.CalculatorText_stepTextSize, (mMaximumTextSize - mMinimumTextSize) / 3); - a.recycle(); - // Paste ActionMode is triggered explicitly, not through - // setCustomSelectionActionModeCallback. - setOnLongClickListener(this); - - // Enable scrolling + // Allow scrolling by default. setMovementMethod(ScrollingMovementMethod.getInstance()); - setTextSize(TypedValue.COMPLEX_UNIT_PX, mMaximumTextSize); + // Reset the clickable flag, which is added when specifying a movement method. + setClickable(false); + + // Add a long click to start the ActionMode manually. + setOnLongClickListener(this); } @Override @@ -147,16 +125,21 @@ public class CalculatorText extends AlignedTextView implements View.OnLongClickL @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { - super.onMeasure(widthMeasureSpec, heightMeasureSpec); - // Prevent shrinking/resizing with our variable textSize. if (!isLaidOut()) { + setTextSize(TypedValue.COMPLEX_UNIT_PX, mMaximumTextSize); setMinHeight(getLineHeight() + getCompoundPaddingBottom() + getCompoundPaddingTop()); } - mWidthConstraint = MeasureSpec.getSize(widthMeasureSpec) + // Re-calculate our textSize based on new width. + final int width = MeasureSpec.getSize(widthMeasureSpec) - getPaddingLeft() - getPaddingRight(); - setTextSize(TypedValue.COMPLEX_UNIT_PX, getVariableTextSize(getText().toString())); + if (mWidthConstraint != width) { + mWidthConstraint = width; + setTextSize(TypedValue.COMPLEX_UNIT_PX, getVariableTextSize(getText())); + } + + super.onMeasure(widthMeasureSpec, heightMeasureSpec); } public int getWidthConstraint() { return mWidthConstraint; } @@ -178,10 +161,6 @@ public class CalculatorText extends AlignedTextView implements View.OnLongClickL } } - public void setOnTextSizeChangeListener(OnTextSizeChangeListener listener) { - mOnTextSizeChangeListener = listener; - } - public float getMinimumTextSize() { return mMinimumTextSize; } @@ -190,7 +169,7 @@ public class CalculatorText extends AlignedTextView implements View.OnLongClickL return mMaximumTextSize; } - public float getVariableTextSize(String text) { + public float getVariableTextSize(CharSequence text) { if (mWidthConstraint < 0 || mMaximumTextSize <= mMinimumTextSize) { // Not measured, bail early. return getTextSize(); @@ -202,13 +181,11 @@ public class CalculatorText extends AlignedTextView implements View.OnLongClickL // Step through increasing text sizes until the text would no longer fit. float lastFitTextSize = mMinimumTextSize; while (lastFitTextSize < mMaximumTextSize) { - final float nextSize = Math.min(lastFitTextSize + mStepTextSize, mMaximumTextSize); - mTempPaint.setTextSize(nextSize); - if (mTempPaint.measureText(text) > mWidthConstraint) { + mTempPaint.setTextSize(Math.min(lastFitTextSize + mStepTextSize, mMaximumTextSize)); + if (Layout.getDesiredWidth(text, mTempPaint) > mWidthConstraint) { break; - } else { - lastFitTextSize = nextSize; } + lastFitTextSize = mTempPaint.getTextSize(); } return lastFitTextSize; @@ -222,12 +199,28 @@ public class CalculatorText extends AlignedTextView implements View.OnLongClickL return false; } + public void setOnTextSizeChangeListener(OnTextSizeChangeListener listener) { + mOnTextSizeChangeListener = listener; + } + + public void setOnPasteListener(OnPasteListener listener) { + mOnPasteListener = listener; + } + + private void paste() { + final ClipboardManager clipboard = (ClipboardManager) getContext() + .getSystemService(Context.CLIPBOARD_SERVICE); + final ClipData primaryClip = clipboard.getPrimaryClip(); + if (primaryClip != null && mOnPasteListener != null) { + mOnPasteListener.onPaste(primaryClip); + } + } + public interface OnTextSizeChangeListener { void onTextSizeChanged(TextView textView, float oldSize); } - public interface PasteListener { - void paste(String s); - boolean paste(Uri u); + public interface OnPasteListener { + boolean onPaste(ClipData clip); } } |