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multiline text display

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This commit is contained in:
Sergey Solovyev 2011-11-02 13:10:56 +04:00
parent 346032a33b
commit 1530be9ca3
4 changed files with 21 additions and 19 deletions
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4
res/layout/calc_display.xml
View File

@ -10,5 +10,7 @@
xmlns:a="http://schemas.android.com/apk/res/android"
a:id="@+id/calculatorDisplay"
style="@style/display_style"
a:scrollHorizontally="true"
a:inputType="textMultiLine"
a:maxLines="3"
a:scrollHorizontally="false"
a:scrollbars="none"/>

2
res/values/styles-common.xml
View File

@ -58,7 +58,7 @@
</style>
<style name="display_style" parent="display_style_parent">
<item name="android:gravity">center_vertical|right</item>
<item name="android:gravity">top|right</item>
<item name="android:layout_width">fill_parent</item>
<item name="android:layout_height">fill_parent</item>
</style>

2
src/main/java/org/solovyev/android/calculator/CalculatorModel.java
View File

@ -84,7 +84,7 @@ public enum CalculatorModel implements CursorControl, HistoryControl<CalculatorH
final CharSequence text = display.getText();
if (!StringUtils.isEmpty(text)) {
final ClipboardManager clipboard = (ClipboardManager) context.getSystemService(Activity.CLIPBOARD_SERVICE);
clipboard.setText(text);
clipboard.setText(text.toString());
Toast.makeText(context, context.getText(R.string.c_result_copied), Toast.LENGTH_SHORT).show();
}
}

32
src/main/java/org/solovyev/android/view/AutoResizeTextView.java
View File

@ -33,16 +33,16 @@ public class AutoResizeTextView extends TextView {
}
// Off screen canvas for text size rendering
private static final Canvas sTextResizeCanvas = new Canvas();
private static final Canvas textResizeCanvas = new Canvas();
// Our ellipse string
private static final String mEllipsis = "...";
private static final String ellipsis = "...";
// Registered resize listener
private OnTextResizeListener mTextResizeListener;
private OnTextResizeListener textResizeListener;
// Flag for text and/or size changes to force a resize
private boolean mNeedsResize = false;
private boolean needsResize = false;
// Lower bounds for text size
private float minTextSize = MIN_TEXT_SIZE;
@ -78,7 +78,7 @@ public class AutoResizeTextView extends TextView {
*/
@Override
protected void onTextChanged(final CharSequence text, final int start, final int before, final int after) {
mNeedsResize = true;
needsResize = true;
// Since this view may be reused, it is good to resetInterpreter the text size
}
@ -88,7 +88,7 @@ public class AutoResizeTextView extends TextView {
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
if (w != oldw || h != oldh) {
mNeedsResize = true;
needsResize = true;
}
}
@ -98,7 +98,7 @@ public class AutoResizeTextView extends TextView {
* @param listener
*/
public void setOnResizeListener(OnTextResizeListener listener) {
mTextResizeListener = listener;
textResizeListener = listener;
}
/**
@ -163,7 +163,7 @@ public class AutoResizeTextView extends TextView {
*/
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
if (changed || mNeedsResize) {
if (changed || needsResize) {
resizeText(right - left, bottom - top);
}
super.onLayout(changed, left, top, right, bottom);
@ -228,33 +228,33 @@ public class AutoResizeTextView extends TextView {
if (addEllipsis && newTextSize == minTextSize && newTextHeight > height) {
// Draw using a static layout
StaticLayout layout = new StaticLayout(text, textPaint, width, Alignment.ALIGN_NORMAL, spacingMult, spacingAdd, false);
layout.draw(sTextResizeCanvas);
layout.draw(textResizeCanvas);
int lastLine = layout.getLineForVertical(height) - 1;
int start = layout.getLineStart(lastLine);
int end = layout.getLineEnd(lastLine);
float lineWidth = layout.getLineWidth(lastLine);
float ellipseWidth = textPaint.measureText(mEllipsis);
float ellipseWidth = textPaint.measureText(ellipsis);
// Trim characters off until we have enough room to draw the ellipsis
while (width < lineWidth + ellipseWidth) {
lineWidth = textPaint.measureText(text.subSequence(start, --end + 1).toString());
}
setText(text.subSequence(0, end) + mEllipsis);
setText(text.subSequence(0, end) + ellipsis);
}
// Some devices try to auto adjust line spacing, so force default line spacing
// and invalidate the layout as a side effect
textPaint.setTextSize(newTextSize);
//setLineSpacing(spacingAdd, spacingMult);
setLineSpacing(spacingAdd, spacingMult);
// Notify the listener if registered
if (mTextResizeListener != null) {
mTextResizeListener.onTextResize(this, oldTextSize, newTextSize);
if (textResizeListener != null) {
textResizeListener.onTextResize(this, oldTextSize, newTextSize);
}
// Reset force resize flag
mNeedsResize = false;
needsResize = false;
}
// Set the text size of the text paint object and use a static layout to render text off screen before measuring
@ -263,7 +263,7 @@ public class AutoResizeTextView extends TextView {
paint.setTextSize(textSize);
// Draw using a static layout
StaticLayout layout = new StaticLayout(source, paint, width, Alignment.ALIGN_NORMAL, spacingMult, spacingAdd, false);
layout.draw(sTextResizeCanvas);
layout.draw(textResizeCanvas);
return layout.getHeight();
}
}