hardcoresushi/libpdfviewer
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avoid multiple renders per zoom

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This commit is contained in:
Daniel Micay 2020-04-04 11:41:06 -04:00
parent 371cb3efdc
commit 760d6f1186
1 changed files with 8 additions and 12 deletions
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20
app/src/main/java/org/grapheneos/pdfviewer/PdfViewer.java
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@ -254,16 +254,12 @@ public class PdfViewer extends AppCompatActivity implements LoaderManager.Loader
@Override
public void onZoomIn(int steps) {
for (int i = 0; i < steps; i++) {
zoomIn();
}
zoomIn(steps);
}
@Override
public void onZoomOut(int steps) {
for (int i = 0; i < steps; i++) {
zoomOut();
}
zoomOut(steps);
}
});
@ -348,17 +344,17 @@ public class PdfViewer extends AppCompatActivity implements LoaderManager.Loader
startActivityForResult(intent, ACTION_OPEN_DOCUMENT_REQUEST_CODE);
}
private void zoomIn() {
private void zoomIn(int steps) {
if (mZoomRatio < MAX_ZOOM_RATIO) {
mZoomRatio += 0.25f;
mZoomRatio += 0.25f * steps;
renderPage(true);
invalidateOptionsMenu();
}
}
private void zoomOut() {
private void zoomOut(int steps) {
if (mZoomRatio > MIN_ZOOM_RATIO) {
mZoomRatio -= 0.25f;
mZoomRatio -= 0.25f * steps;
renderPage(true);
invalidateOptionsMenu();
}
@ -498,11 +494,11 @@ public class PdfViewer extends AppCompatActivity implements LoaderManager.Loader
return super.onOptionsItemSelected(item);
case R.id.action_zoom_out:
zoomOut();
zoomOut(1);
return true;
case R.id.action_zoom_in:
zoomIn();
zoomIn(1);
return true;
case R.id.action_rotate_clockwise: