Add Handwriting Annotation

sparklellama
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IP: 192.168.0.70 12 years 2 months ago #4932 by sparklellama

Add Handwriting Annotation was created by sparklellama

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.

Code:

// 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();
		}
		
	}

radaee
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IP: 192.168.0.70 12 years 2 months ago #4935 by radaee

Replied by radaee on topic Add Handwriting Annotation

plz check this:

Code:

@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();
	}
}

sparklellama
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IP: 192.168.0.70 12 years 2 months ago #4936 by sparklellama

Replied by sparklellama on topic Add Handwriting Annotation

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.

radaee
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IP: 192.168.0.70 12 years 2 months ago - 12 years 2 months ago #4938 by radaee

Replied by radaee on topic Add Handwriting Annotation

i tested it, and fixed some bugs for this method. plz wait.
and try these codes for next version:

Code:

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;

Last edit: 12 years 2 months ago by .

nermeen
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IP: 192.168.0.158 12 years 2 months ago #4943 by nermeen

Replied by nermeen on topic Add Handwriting Annotation

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

sparklellama
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Junior Member

IP: 192.168.0.70 12 years 2 months ago #4956 by sparklellama

Replied by sparklellama on topic Add Handwriting Annotation

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.

Code:

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;

		}
		

Time to create page: 0.462 seconds