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13 Jul 2017
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TOPIC: Add Handwriting Annotation

Add Handwriting Annotation 4 years 10 months ago #4932

  • sparklellama
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The following code is intended to insert an HWriting annotation into a PDF. The HWriting has been perviously successfully drawn. However, the code only causes the HWriting to vanish. It is not inserted into the PDF. I have used this code pattern successfully for other annotation types (Ink, Rects, Circles, Comments etc), but it does not work for HWriting. Any clues? Thanks if you can help.
// elsewhere mWw is defined as  new HWriting([view width], [view height], 1.0f, 3.0f, 0, 0, 0);

	@Override
	public void persist(PDFVPage vpage, int x, int y)
	{
		Page page = vpage.GetPage();
		if (page != null)
		{
			Matrix mat = vpage.CreateMatrix();
			Log.v(this.getClass().getName(), String.format("Persisting hWriting at: %d %d", -vpage.GetVX(x), -vpage.GetVY(y)));
			page.ObjsStart(); // Docs suggest that this might be a good idea, but doesn't seem to help
			page.AddAnnotHWriting(mat, mHw,-vpage.GetVX(x), -vpage.GetVY(y)); // TODO: NOT WORKING
			mat.Destroy();
		}
		
	}

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Add Handwriting Annotation 4 years 10 months ago #4935

  • radaee
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plz check this:
@Override
public void persist(PDFVPage vpage)
{
	Page page = vpage.GetPage();
	if (page != null)
	{
		Matrix mat = vpage.CreateMatrix();
		Log.v(this.getClass().getName(), String.format("Persisting hWriting at: %d %d", -vpage.GetVX(x), -vpage.GetVY(y)));
		page.ObjsStart(); // Docs suggest that this might be a good idea, but doesn't seem to help
		page.AddAnnotHWriting(mat, mHw,-vpage.GetVX(m_view.vGetX()), -vpage.GetVY(m_view.vGetY())); // TODO: NOT WORKING
		mat.Destroy();
	}
}

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Add Handwriting Annotation 4 years 10 months ago #4936

  • sparklellama
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Thanks so much for the suggestion. Unfortunately this time, it didn't have any effect. Let me know if you have any more ideas… thanks so much.

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Add Handwriting Annotation 4 years 10 months ago #4938

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i tested it, and fixed some bugs for this method. plz wait.
and try these codes for next version:
Init:
	private HWriting m_writing = null;
	m_writing = new HWriting( getWidth(), getHeight(), 1, 5, 255, 0, 0 );

case onTouchDown:
	m_writing.OnDown(event.getX(), event.getY());
	PDFPos pos = m_view.vGetPos((int)event.getX(), (int)event.getY());
	PDFVPage vpage = m_view.vGetPage(pos.pageno);

case onTouchMove:
	m_writing.OnMove(event.getX(), event.getY());

case onTouchUp:
	m_writing.OnUp(event.getX(), event.getY());

Add to page:
	Page page = vpage.GetPage();
	Matrix mat = vpage.CreateMatrix();
	page.AddAnnotHWriting(mat, m_writing, -vpage.GetVX(m_view.vGetX()), -vpage.GetVY(m_view.vGetY()));
	mat.Destroy();
	m_view.vRender(vpage);
	m_writing.Destroy();
	m_writing = null;

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Last edit: by .

Add Handwriting Annotation 4 years 10 months ago #4943

  • nermeen
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A new version 2.9.7beta5 has been pubblished..
This contains a fix to HWriting annotation

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Add Handwriting Annotation 4 years 9 months ago #4956

  • sparklellama
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Thank you for the new beta version of the library. Unfortunately there was no change upon upgrading to the new library. I have updated the code to more closely reflect your example, but no luck. Thanks if you have any more ideas.
create:

		mView = view;
		mAndroidView = aview;
		// width, height, min stroke width, max stroke width, 3x # = RGB col
		mHw = new HWriting(mAndroidView.getWidth(), mAndroidView.getHeight(),
				1.0f, 3.0f, 0, 0, 0);
		mBitmap = Bitmap.createBitmap(mAndroidView.getWidth(),
				mAndroidView.getHeight(), Bitmap.Config.ARGB_8888);		

draw:

		mBitmap.eraseColor(0);
		int hndl = Global.lockBitmap(mBitmap);
		mHw.OnDraw(hndl);
		Global.unlockBitmap(mBitmap, hndl);
		c.drawBitmap(mBitmap, 0, 0, null);	

touchDown:

		mHw.OnDown(x, y);
		PDFPos pos = mView.vGetPos((int)x, (int)y);
		aPage = mView.vGetPage(pos.pageno);
		
touchMove:

		mHw.OnMove(x, y);
		
touchUp:

		mHw.OnUp(x, y);

persist to page:

		Page page = aPage.GetPage();
		if (page != null)
		{
			Matrix mat = aPage.CreateMatrix();
			Log.v(this.getClass().getName(),
					String.format("Persisting hWriting at: %d %d",
							vpage.GetVX(mView.vGetX()),
							-vpage.GetVY(mView.vGetY())));
			page.ObjsStart(); // Docs suggest that this might be a good idea,
								// but doesn't seem to help
			page.AddAnnotHWriting(mat, mHw, -vpage.GetVX(mView.vGetX()),
					-vpage.GetVY(mView.vGetY())); // Not working
			mat.Destroy();
			mView.vRender(aPage);
			mHw.Destroy();
			mHw = null;

		}
		

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