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 @Override
public void onZoomIn(int steps) { public void onZoomIn(int steps) {
for (int i = 0; i < steps; i++) { zoomIn(steps);
zoomIn();
}
} }
@Override @Override
public void onZoomOut(int steps) { public void onZoomOut(int steps) {
for (int i = 0; i < steps; i++) { zoomOut(steps);
zoomOut();
}
} }
}); });
@ -348,17 +344,17 @@ public class PdfViewer extends AppCompatActivity implements LoaderManager.Loader
startActivityForResult(intent, ACTION_OPEN_DOCUMENT_REQUEST_CODE); startActivityForResult(intent, ACTION_OPEN_DOCUMENT_REQUEST_CODE);
} }
private void zoomIn() { private void zoomIn(int steps) {
if (mZoomRatio < MAX_ZOOM_RATIO) { if (mZoomRatio < MAX_ZOOM_RATIO) {
mZoomRatio += 0.25f; mZoomRatio += 0.25f * steps;
renderPage(true); renderPage(true);
invalidateOptionsMenu(); invalidateOptionsMenu();
} }
} }
private void zoomOut() { private void zoomOut(int steps) {
if (mZoomRatio > MIN_ZOOM_RATIO) { if (mZoomRatio > MIN_ZOOM_RATIO) {
mZoomRatio -= 0.25f; mZoomRatio -= 0.25f * steps;
renderPage(true); renderPage(true);
invalidateOptionsMenu(); invalidateOptionsMenu();
} }
@ -498,11 +494,11 @@ public class PdfViewer extends AppCompatActivity implements LoaderManager.Loader
return super.onOptionsItemSelected(item); return super.onOptionsItemSelected(item);
case R.id.action_zoom_out: case R.id.action_zoom_out:
zoomOut(); zoomOut(1);
return true; return true;
case R.id.action_zoom_in: case R.id.action_zoom_in:
zoomIn(); zoomIn(1);
return true; return true;
case R.id.action_rotate_clockwise: case R.id.action_rotate_clockwise: