Forgot the code.
On Tuesday, October 11, 2016 at 10:47:47 AM UTC+10, Bryan Buchanan wrote:
>
> I've adapted the code from the SignatureComponent (see Form2.java), which
> works fine. I've also tried some native Android code -
>
>
> http://www.mysamplecode.com/2011/11/android-capture-signature-using-canvas.html
>
> They both work pretty much the same, but the native Android code is
> noticeably more responsive (on a Nexus 7). The SignatureComponent code
> looks pretty simple, so I guess there's maybe nothing to be done to make it
> work a little bit smoother ?
>
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/*
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*/
package com.webbtide.tpd.timeclock;
import com.codename1.ui.Button;
import com.codename1.ui.Component;
import com.codename1.ui.Container;
import com.codename1.ui.Display;
import com.codename1.ui.Graphics;
import com.codename1.ui.Image;
import com.codename1.ui.Stroke;
import com.codename1.ui.events.ActionEvent;
import com.codename1.ui.events.ActionListener;
import com.codename1.ui.geom.GeneralPath;
import com.codename1.ui.layouts.BorderLayout;
import com.codename1.ui.layouts.GridLayout;
import com.codename1.util.StringUtil;
import java.util.Calendar;
import java.util.List;
import java.util.TimeZone;
/**
* @author bryanb
*/
public class Form2 extends BJBForm {
SignaturePanel canvas;
Image signatureImage;
public Form2() {
}
@Override
public Form2 init() {
setTitle("Enter Signature");
setLayout(new BorderLayout());
setScrollableX(false);
setScrollableY(false);
canvas = new SignaturePanel();
canvas.setUIID("BorderContainer");
Container c = new Container(new GridLayout(1, 2));
Button clear = new BorderButton("Clear");
clear.addActionListener((ActionListener) (ActionEvent evt) -> {
canvas.clear();
});
c.add(clear);
Button save = new BorderButton("Save");
save.addActionListener((ActionListener) (ActionEvent evt) -> {
/**
* save stuff and talk
*/
String employee = CommonContext.INSTANCE.getEmployee();
List<String> l = StringUtil.tokenize(employee, " ");
String name = l.get(0);
Calendar calendar = Calendar.getInstance(TimeZone.getDefault());
int hour = calendar.get(Calendar.HOUR_OF_DAY);
String talk;
if (hour > 11) {
talk = "Good Afternoon " + name + ", enjoy your evening";
} else {
talk = "Good Morning " + name + ", have a good day";
}
if (CommonContext.INSTANCE.getTts() != null && CommonContext.INSTANCE.getTts().isSupported()) {
CommonContext.INSTANCE.getTts().say(talk);
}
signatureImage = canvas.getImage();
/**
* get the image from the component
*/
/*
Image buffer = Image.createImage(canvas.getWidth(), canvas.getHeight());
Graphics g = buffer.getGraphics();
g.translate(-canvas.getAbsoluteX(), -canvas.getAbsoluteY());
canvas.paintComponent(g);
g.translate(canvas.getAbsoluteX(), canvas.getAbsoluteY());
ByteArrayOutputStream stream = new ByteArrayOutputStream();
ImageIO.getImageIO().save(buffer, stream, ImageIO.FORMAT_PNG, 1);
byte[] byteArray = stream.toByteArray();
String base64 = Base64.encodeNoNewline(byteArray);
*/
/**
* return to first form
*/
CommonContext.INSTANCE.getForm1().show();
});
c.add(save);
addComponent(BorderLayout.SOUTH, c);
addComponent(BorderLayout.CENTER, canvas);
setBackCommand(CommonContext.INSTANCE.getForm1());
return this;
}
@Override
protected void onShowCompleted() {
super.onShowCompleted();
}
public class BorderButton extends Button {
int h = Display.getInstance().convertToPixels(8, false);
public BorderButton() {
super("");
setUIID("BorderButton");
setPreferredH(getPreferredH() < h ? h : getPreferredH());
}
public BorderButton(String s) {
super(s);
setUIID("BorderButton");
setPreferredH(getPreferredH() < h ? h : getPreferredH());
}
}
class SignaturePanel extends Component {
private final GeneralPath path = new GeneralPath();
private final Stroke stroke = new Stroke();
// private final Rectangle signatureRect = new Rectangle();
// private final Font xFont;
public SignaturePanel() {
stroke.setLineWidth(Math.max(1, Display.getInstance().convertToPixels(1, true) / 2));
getAllStyles().setBgColor(0xffffff);
getAllStyles().setBgTransparency(255);
// xFont = Font.createSystemFont(Font.FACE_SYSTEM, Font.STYLE_BOLD, Font.SIZE_LARGE);
}
/**
* Overridden to try to make this component as sensitive as possible to
* drag events. If we don't do this, it requires a longer drag before
* the "drag" events will kick in.
*
* @param x
* @param y
* @return
*/
@Override
protected int getDragRegionStatus(int x, int y) {
return Component.DRAG_REGION_LIKELY_DRAG_XY;
}
/**
*
* @param g
*/
@Override
public void paint(Graphics g) {
super.paint(g);
// g.setColor(0x666666);
// calcSignatureRect(signatureRect);
// g.drawRect(signatureRect.getX(), signatureRect.getY(), signatureRect.getWidth(), signatureRect.getHeight());
// g.drawString("X", signatureRect.getX() + Display.getInstance().convertToPixels(1, true), signatureRect.getY() + signatureRect.getHeight() / 2);
paintSignature(g);
}
/**
* Paints just the signature portion of the panel. This is is reused to
* also create the image of the signature.
*
* @param g
*/
private void paintSignature(Graphics g) {
g.setColor(0x0);
boolean oldAA = g.isAntiAliased();
g.setAntiAliased(true);
g.drawShape(path, stroke);
g.setAntiAliased(oldAA);
}
/**
* Calculates a rectangle (in parent component space) used for the drawn
* "rectangle" inside which the user should draw their signature. It
* tries to create a 16x9 rectangle that fits inside the component with
* a bit of padding (3mm on each edge).
*
* @param r Output variable.
*/
/*
private void calcSignatureRect(Rectangle r) {
int w = getWidth() - Display.getInstance().convertToPixels(6, true);
int h = (int) (w * 9.0 / 16.0);
if (h > getHeight()) {
h = getHeight() - Display.getInstance().convertToPixels(6, false);
w = (int) (h * 16.0 / 9.0);
}
r.setX(getX() + (getWidth() - w) / 2);
r.setY(getY() + (getHeight() - h) / 2);
r.setWidth(w);
r.setHeight(h);
}
*/
/*
@Override
protected Dimension calcPreferredSize() {
Display d = Display.getInstance();
return new Dimension(d.convertToPixels(100, true), d.convertToPixels(60, false));
}
*/
@Override
public void pointerPressed(int x, int y) {
path.moveTo(x(x), y(y));
repaint();
}
@Override
public void pointerDragged(int x, int y) {
path.lineTo(x(x), y(y));
repaint();
}
@Override
public void pointerReleased(int x, int y) {
repaint();
}
/**
* Converts an x coordinate from screen space, to parent component
* space.
*
* @param x
* @return
*/
private int x(int x) {
return x - getParent().getAbsoluteX();
}
/**
* Converts a y coordinate from screen space to parent component space.
*
* @param y
* @return
*/
private int y(int y) {
return y - getParent().getAbsoluteY();
}
/**
* Gets the currently drawn signature as an image. This only includes
* the areas inside the {@link #signatureRect}
*
* @return
*/
public Image getImage() {
// calcSignatureRect(signatureRect);
// Image img = Image.createImage(signatureRect.getWidth(), signatureRect.getHeight(), 0xffffff);
Image img = Image.createImage(getWidth(), getHeight(), 0xffffff);
Graphics g = img.getGraphics();
// g.translate(-signatureRect.getX(), -signatureRect.getY());
g.translate(-getX(), -getY());
paintSignature(g);
return img;
}
/**
* Resets the signature as a blank path.
*/
public void clear() {
path.reset();
repaint();
}
}
}
