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authorJakob Heher <jakob.heher@iaik.tugraz.at>2022-10-07 13:59:02 +0200
committerJakob Heher <jakob.heher@iaik.tugraz.at>2022-10-07 13:59:02 +0200
commite62af8986381d22aeea52c48276611777632da6c (patch)
tree092aa932b05b5c91b2ad21c44e5285ca1edb320e /pdf-over-gui/src/main/java/at/asit
parentacb42081141d476b1cd0c1ddf1eca0e07786e43e (diff)
downloadpdf-over-e62af8986381d22aeea52c48276611777632da6c.tar.gz
pdf-over-e62af8986381d22aeea52c48276611777632da6c.tar.bz2
pdf-over-e62af8986381d22aeea52c48276611777632da6c.zip
position composite rewrite
Diffstat (limited to 'pdf-over-gui/src/main/java/at/asit')
-rw-r--r--pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/PositioningComposite.java20
-rw-r--r--pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/SignaturePanel.java384
2 files changed, 164 insertions, 240 deletions
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/PositioningComposite.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/PositioningComposite.java
index 1953a035..9f90cbbc 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/PositioningComposite.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/PositioningComposite.java
@@ -235,12 +235,12 @@ public class PositioningComposite extends StateComposite {
case KeyEvent.VK_UP:
case KeyEvent.VK_KP_UP:
- sigYOffset -= Constants.SIGNATURE_KEYBOARD_POSITIONING_OFFSET;
+ sigYOffset += Constants.SIGNATURE_KEYBOARD_POSITIONING_OFFSET;
break;
case KeyEvent.VK_DOWN:
case KeyEvent.VK_KP_DOWN:
- sigYOffset += Constants.SIGNATURE_KEYBOARD_POSITIONING_OFFSET;
+ sigYOffset -= Constants.SIGNATURE_KEYBOARD_POSITIONING_OFFSET;
break;
}
@@ -335,11 +335,11 @@ public class PositioningComposite extends StateComposite {
* @param sigXOffset
* signature placeholder horizontal position offset
* @param sigYOffset
- * signature placeholder vertical position offset
+ * signature placeholder vertical position offset (negative is down)
*/
public void translateSignaturePosition(final int sigXOffset, final int sigYOffset) {
EventQueue.invokeLater(() -> {
- this.viewer.translateSignaturePosition(sigXOffset, sigYOffset);
+ this.viewer.translateSignaturePagePosition(sigXOffset, sigYOffset);
});
}
@@ -350,12 +350,14 @@ public class PositioningComposite extends StateComposite {
* the signature position
*/
void setFinalPosition() {
- if (this.currentPage == 0)
+ if (this.currentPage == 0) {
this.position = new SignaturePosition();
- else
+ } else {
this.position = new SignaturePosition(
- this.viewer.getSignaturePositionX(),
- this.viewer.getSignaturePositionY(), this.currentPage);
+ this.viewer.getSigPageX(),
+ this.viewer.getSigPageY(),
+ this.currentPage);
+ }
PositioningComposite.this.state.updateStateMachine();
}
@@ -369,7 +371,7 @@ public class PositioningComposite extends StateComposite {
* @param page
* the page the signature is on
*/
- public void setPosition(float x, float y, int page) {
+ public void setPosition(double x, double y, int page) {
showPage(page);
if (this.viewer != null)
this.viewer.setSignaturePosition(x, y);
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/SignaturePanel.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/SignaturePanel.java
index bad000ea..72811050 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/SignaturePanel.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/SignaturePanel.java
@@ -24,8 +24,6 @@ import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
-import java.awt.geom.AffineTransform;
-import java.awt.geom.NoninvertibleTransformException;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
@@ -57,52 +55,85 @@ public class SignaturePanel extends JPanel {
/** The PDF file being displayed */
private PDDocument pdf = null;
private PDFRenderer renderer = null;
+
/** The image of the rendered PDF page being displayed */
Image currentImage = null;
- /** The current PDFPage that was rendered into currentImage */
- private PDPage currentPage = null;
- /** The current transform from screen to page space */
- AffineTransform currentTransform = null;
+
+ /** The current scale for rendering pdf to image */
+ private float pageToImageScale;
+ /** The current scale for rendering image to screen */
+ private double imageToScreenScale;
+ /* scaling */
+ private enum U {
+ /* (0,0) is bottom-left of page */
+ PAGE_ABS,
+ /* (0,0) is top-left of page */
+ PAGE_REL,
+ /* pixels, (0,0) is top-left of image */
+ IMAGE,
+ /* pixels, (0,0) is top-left of image */
+ SCREEN_REL,
+ /* pixels, (0,0) is top-left of canvas */
+ SCREEN_ABS };
+ private enum Dim { X, Y };
+ private double scale(double v, U from, U to, Dim d)
+ {
+ if (from == to) return v;
+
+ if (from == U.PAGE_ABS) {
+ return scale((d == Dim.X) ? v : (this.pageHeight - v), U.PAGE_REL, to, d);
+ } else if (from == U.PAGE_REL) {
+ if (to == U.PAGE_ABS)
+ return ((d == Dim.X) ? v : (this.pageHeight - v));
+ else
+ return scale(v * this.pageToImageScale, U.IMAGE, to, d);
+ } else if (from == U.IMAGE) {
+ if ((to == U.PAGE_ABS) || (to == U.PAGE_REL))
+ return scale(v / this.pageToImageScale, U.PAGE_REL, to, d);
+ else
+ return scale(v * this.imageToScreenScale, U.SCREEN_REL, to, d);
+ } else if (from == U.SCREEN_REL) {
+ if (to == U.SCREEN_ABS)
+ return (v + ((d == Dim.X) ? this.offX : this.offY));
+ else
+ return scale(v / this.imageToScreenScale, U.IMAGE, to, d);
+ } else if (from == U.SCREEN_ABS) {
+ return scale(v - ((d == Dim.X) ? this.offX : this.offY), U.SCREEN_REL, to, d);
+ } else throw new RuntimeException("unreachable");
+ }
+
+ private float pageWidth = 0;
+ private float pageHeight = 0;
/** The horizontal offset of the image from the left edge of the panel */
- int offX = 0;
+ private int offX = 0;
/** The vertical offset of the image from the top of the panel */
- int offY = 0;
- /** The position of the signature, in page space */
- Point2D sigPagePos = null;
- /** The position of the signature, in screen space */
- Point2D sigScreenPos = null;
+ private int offY = 0;
+ /** The position of the top-left corner of the signature, in absolute page space */
+ private Point2D sigPagePos = null;
+ public double getSigPageX() { return this.sigPagePos.getX(); }
+ public double getSigPageY() { return this.sigPagePos.getY(); }
/** The signature placeholder image */
private Image sigPlaceholder = null;
- /** Current scaled signature placeholder image */
- BufferedImage sigPlaceholderScaled = null;
/** Width of the signature placeholder in page space */
private int sigPageWidth = 0;
/** Height of the signature placeholder in page space */
private int sigPageHeight = 0;
- /** Width of the signature placeholder in screen space */
- int sigScreenWidth = 0;
- /** Height of the signature placeholder in screen space */
- int sigScreenHeight = 0;
- /** Previous Width of the signature placeholder in screen space */
- int prevSigScreenWidth = 0;
- /** Previous Height of the signature placeholder in screen space */
- int prevSigScreenHeight = 0;
/** Color of the signature placeholder border */
private Color sigPlaceholderBorderColor = Color.BLUE;
/** Current page */
- int currentPageNo = 0;
+ private int currentPageNo = 0;
/** Number of pages in the document */
- int numPages = 0;
+ private int numPages = 0;
/** Cursor types */
- static enum Cursors {DEFAULT, HAND, MOVE};
+ private static enum Cursors {DEFAULT, HAND, MOVE};
/** Default arrow cursor */
- final Cursor defaultCursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
+ private final Cursor defaultCursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
/** Hand cursor */
- final Cursor handCursor = Cursor.getPredefinedCursor(Cursor.HAND_CURSOR);
+ private final Cursor handCursor = Cursor.getPredefinedCursor(Cursor.HAND_CURSOR);
/** Move cursor */
- final Cursor moveCursor = Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR);
+ private final Cursor moveCursor = Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR);
/** Current cursor */
- Cursors currentCursor = Cursors.DEFAULT;
+ private Cursors currentCursor = Cursors.DEFAULT;
/**
* Create a new PagePanel.
@@ -126,6 +157,7 @@ public class SignaturePanel extends JPanel {
{
this.renderer = new PDFRenderer(pdf);
this.numPages = pdf.getNumberOfPages();
+ this.currentPageNo = -1;
showPage(this.numPages);
}
else
@@ -166,6 +198,7 @@ public class SignaturePanel extends JPanel {
* @param page the number of the page to display
*/
public void showPage(int page) {
+ if (this.currentPageNo == page) return;
this.currentPageNo = page;
renderPageToImage();
repaint();
@@ -181,43 +214,21 @@ public class SignaturePanel extends JPanel {
}
/**
- * Translate the signature placeholder position
- * @param sigXOffset signature placeholder horizontal position offset
- * @param sigYOffset signature placeholder vertical position offset
- */
- public void translateSignaturePosition(int sigXOffset, int sigYOffset) {
- updateSigPos((int) this.sigScreenPos.getX() + sigXOffset, (int) this.sigScreenPos.getY() + sigYOffset);
- }
-
- /**
* Set the signature placeholder position
- * Call showPage afterwards to update actual position
* @param x the horizontal signature position
* @param y the vertical signature position
*/
- public void setSignaturePosition(float x, float y)
+ public void setSignaturePosition(double x, double y)
{
- this.sigPagePos = new Point2D.Double(x, y);
- }
-
- /**
- * Get the current horizontal position of the signature
- * @return signature x coordinate
- */
- public float getSignaturePositionX() {
- if (this.sigPagePos == null)
- return 0;
- return Math.max((float) this.sigPagePos.getX(), 0);
+ this.sigPagePos = new Point2D.Double(
+ clamp(x, 0, this.pageWidth - this.sigPageWidth),
+ clamp(y, this.sigPageHeight, this.pageHeight)
+ );
+ repaint();
}
- /**
- * Get the current vertical position of the signature
- * @return signature y coordinate
- */
- public float getSignaturePositionY() {
- if (this.sigPagePos == null)
- return 0;
- return Math.max((float) this.sigPagePos.getY(), 0);
+ public void translateSignaturePagePosition(float dX, float dY) {
+ setSignaturePosition(this.sigPagePos.getX() + dX, this.sigPagePos.getY() + dY);
}
/**
@@ -229,95 +240,61 @@ public class SignaturePanel extends JPanel {
if (this.pdf == null)
{
this.currentImage = null;
- this.currentTransform = null;
return;
}
boolean newPage = false;
+ PDPage currentPage;
// set up the new page
if (this.currentPageNo > this.numPages)
{
// New last page - use old last page as template
- this.currentPage = this.pdf.getPage(this.numPages-1);
+ currentPage = this.pdf.getPage(this.numPages-1);
newPage = true;
}
else
- this.currentPage = this.pdf.getPage(this.currentPageNo-1);
+ currentPage = this.pdf.getPage(this.currentPageNo-1);
- if (this.currentPage == null) {
+ if (currentPage == null) {
// no page
this.currentImage = null;
- this.currentTransform = null;
- } else {
- // start drawing
- Dimension renderPanelSize = getSize();
- if (renderPanelSize.width + renderPanelSize.height == 0) {
- // no image to draw.
- return;
- }
-
- PDRectangle actualPageSize = this.currentPage.getBBox();
- double desiredAspectRatio = actualPageSize.getHeight() / actualPageSize.getWidth();
- double renderRatioAvailable = (double)renderPanelSize.height / (double)renderPanelSize.width;
- Dimension actualRenderSize = (Dimension)renderPanelSize.clone();
- if (renderRatioAvailable > desiredAspectRatio)
- actualRenderSize.height = (int)(actualRenderSize.width * desiredAspectRatio + 0.5);
- else
- actualRenderSize.width = (int)(actualRenderSize.height / desiredAspectRatio + 0.5);
-
- // get the new image
- if (newPage)
- {
- this.currentImage = new BufferedImage(actualRenderSize.width, actualRenderSize.height, BufferedImage.TYPE_INT_RGB);
- Graphics g = this.currentImage.getGraphics();
- g.setColor(Color.WHITE);
- g.fillRect(0, 0, actualRenderSize.width, actualRenderSize.height);
- }
- else
- {
- int whichPage = Math.min(this.currentPageNo, this.numPages);
- float scale = 1;
- if (actualRenderSize.width == renderPanelSize.width)
- scale = ((float) renderPanelSize.width) / actualPageSize.getWidth();
- else if (actualRenderSize.height == renderPanelSize.height)
- scale = ((float) renderPanelSize.height) / actualPageSize.getHeight();
-
- try {
- this.currentImage = renderer.renderImage(whichPage-1, scale);
- } catch (IOException e) {
- log.error(String.format("Failed to render image for page %d of %d", whichPage, this.numPages), e);
- }
- }
-
- // calculate the transform from page to screen space
- this.currentTransform = new AffineTransform(1, 0, 0, -1, 0, actualRenderSize.height);
- double scaleX = ((double)actualRenderSize.width) / actualPageSize.getWidth();
- double scaleY = ((double)actualRenderSize.height) / actualPageSize.getHeight();
- this.currentTransform.scale(scaleX, scaleY);
- this.currentTransform.translate(-actualPageSize.getLowerLeftX(), -actualPageSize.getLowerLeftY());
-
- if (this.sigPagePos != null)
- this.sigScreenPos = this.currentTransform.transform(this.sigPagePos, this.sigScreenPos);
- this.sigScreenWidth = (int) Math.round(this.sigPageWidth * this.currentTransform.getScaleX());
- this.sigScreenHeight = (int) Math.round(this.sigPageHeight * this.currentTransform.getScaleX());
+ return;
+ }
+
+ PDRectangle actualPageSize = currentPage.getBBox();
+ this.pageWidth = actualPageSize.getWidth();
+ this.pageHeight = actualPageSize.getHeight();
+ this.pageToImageScale = getToolkit().getScreenSize().height / this.pageHeight;
+
+ // get the new image
+ if (newPage)
+ {
+ int renderHeight = (int)(0.5 + this.scale(actualPageSize.getHeight(), U.PAGE_REL, U.IMAGE, Dim.X));
+ int renderWidth = (int)(0.5 + this.scale(actualPageSize.getWidth(), U.PAGE_REL, U.IMAGE, Dim.Y));
+ this.currentImage = new BufferedImage(renderWidth, renderHeight, BufferedImage.TYPE_INT_RGB);
+ Graphics g = this.currentImage.getGraphics();
+ g.setColor(Color.WHITE);
+ g.fillRect(0, 0, renderWidth, renderHeight);
+ }
+ else
+ {
+ int whichPage = Math.min(this.currentPageNo, this.numPages);
- // invert the transform (screen to page space)
try {
- this.currentTransform = this.currentTransform.createInverse();
- } catch (NoninvertibleTransformException nte) {
- log.error("Error inverting page transform!", nte);
+ this.currentImage = renderer.renderImage(whichPage-1, this.pageToImageScale);
+ } catch (IOException e) {
+ log.error(String.format("Failed to render image for page %d of %d", whichPage, this.numPages), e);
+ this.currentImage = null;
}
+ }
- if (this.sigPagePos == null)
- {
- this.sigScreenPos = new Point2D.Double(
- clamp((int) (actualRenderSize.getWidth() / 2), 0, this.currentImage.getWidth(null) - this.sigScreenWidth),
- clamp((int) ((actualRenderSize.getHeight() / 4) * 3), 0, this.currentImage.getHeight(null) - this.sigScreenHeight));
- this.sigPagePos = this.currentTransform.transform(this.sigScreenPos, this.sigPagePos);
- }
- else
- updateSigPos((int) this.sigScreenPos.getX(), (int) this.sigScreenPos.getY());
+ if (this.sigPagePos == null)
+ {
+ setSignaturePosition(
+ actualPageSize.getWidth() * .5,
+ actualPageSize.getHeight() * .75
+ );
}
}
@@ -331,73 +308,36 @@ public class SignaturePanel extends JPanel {
g.fillRect(0, 0, getWidth(), getHeight());
if (this.currentImage == null) {
g.setColor(Color.black);
- g.drawString(Messages.getString("error.SignaturePanel.NoPage"), getWidth() / 2 - 30, getHeight() / 2);
- if (this.currentPage != null) {
- renderPageToImage();
- repaint();
- }
+ g.drawString(Messages.getString("common.working"), getWidth() / 2 - 30, getHeight() / 2);
} else {
+ this.imageToScreenScale = Math.min(
+ renderPanelSize.getWidth() / this.currentImage.getWidth(null),
+ renderPanelSize.getHeight() / this.currentImage.getHeight(null));
// draw the image
- int actualRenderWidth = this.currentImage.getWidth(null);
- int actualRenderHeight = this.currentImage.getHeight(null);
+ int actualRenderWidth = (int)(this.currentImage.getWidth(null) * this.imageToScreenScale);
+ int actualRenderHeight = (int)(this.currentImage.getHeight(null) * this.imageToScreenScale);
// draw it centered within the panel
this.offX = (renderPanelSize.width - actualRenderWidth) / 2;
this.offY = (renderPanelSize.height - actualRenderHeight) / 2;
- if ((actualRenderWidth == renderPanelSize.width && actualRenderHeight <= renderPanelSize.height)
- || (actualRenderHeight == renderPanelSize.height && actualRenderWidth <= renderPanelSize.width)) {
-
- // draw document
- g.drawImage(this.currentImage, this.offX, this.offY, this);
-
- // draw signature
- int sigX = (int) (this.offX + this.sigScreenPos.getX());
- int sigY = (int) (this.offY + this.sigScreenPos.getY());
- if (this.sigPlaceholder == null) {
- g.setColor(Color.red);
- g.drawRect(sigX, sigY, 100, 40);
- }
- else {
- if (
- ((this.sigScreenWidth != this.prevSigScreenWidth) ||
- (this.sigScreenHeight != this.prevSigScreenHeight)) &&
- ((this.sigScreenWidth != 0) && (this.sigScreenHeight != 0)))
- {
- // redraw scaled transparent placeholder
- this.prevSigScreenWidth = this.sigScreenWidth;
- this.prevSigScreenHeight = this.sigScreenHeight;
- Image placeholder = this.sigPlaceholder.getScaledInstance(
- this.sigScreenWidth, this.sigScreenHeight, Image.SCALE_SMOOTH);
-
- //Make placeholder transparent
- this.sigPlaceholderScaled = new BufferedImage(this.sigScreenWidth, this.sigScreenHeight, BufferedImage.TYPE_INT_ARGB);
- Graphics g_phs = this.sigPlaceholderScaled.getGraphics();
- g_phs.drawImage(placeholder, 0, 0, null);
- g_phs.dispose();
-
- int[] phpixels = new int[this.sigScreenWidth * this.sigScreenHeight];
- phpixels = this.sigPlaceholderScaled.getRGB(0, 0, this.sigScreenWidth, this.sigScreenHeight, phpixels, 0, this.sigScreenWidth);
- for (int i = 0; i < phpixels.length; ++i) {
- Color c = new Color(phpixels[i]);
- c = new Color(c.getRed(), c.getGreen(), c.getBlue(), 170);
- phpixels[i] = c.getRGB();
- }
- this.sigPlaceholderScaled.setRGB(0, 0, this.sigScreenWidth, this.sigScreenHeight, phpixels, 0, this.sigScreenWidth);
- }
- g.drawImage(this.sigPlaceholderScaled, sigX, sigY, null);
- g.setColor(this.sigPlaceholderBorderColor);
- g.drawRect(sigX, sigY, this.sigScreenWidth-1, this.sigScreenHeight-1);
- }
-
- } else {
- // the image is bogus. try again, or give up.
- if (this.currentPage != null)
- renderPageToImage();
+ // draw document
+ g.drawImage(this.currentImage, this.offX, this.offY, actualRenderWidth, actualRenderHeight, null);
+
- g.setColor(Color.black);
- g.drawString(Messages.getString("error.SignaturePanel.NoRender"), getWidth() / 2 - 30,
- getHeight() / 2);
+ // draw signature
+ int sigX = (int) this.scale(this.sigPagePos.getX(), U.PAGE_ABS, U.SCREEN_ABS, Dim.X);
+ int sigY = (int) this.scale(this.sigPagePos.getY(), U.PAGE_ABS, U.SCREEN_ABS, Dim.Y);
+ if (this.sigPlaceholder == null) {
+ g.setColor(Color.red);
+ g.drawRect(sigX, sigY, 100, 40);
+ }
+ else {
+ int sigScreenWidth = (int)this.scale(this.sigPageWidth, U.PAGE_REL, U.SCREEN_REL, Dim.X);
+ int sigScreenHeight = (int)this.scale(this.sigPageHeight, U.PAGE_REL, U.SCREEN_REL, Dim.Y);
+ g.drawImage(this.sigPlaceholder, sigX, sigY, sigScreenWidth, sigScreenHeight, null);
+ g.setColor(this.sigPlaceholderBorderColor);
+ g.drawRect(sigX, sigY, sigScreenWidth-1, sigScreenHeight-1);
}
}
}
@@ -423,17 +363,18 @@ public class SignaturePanel extends JPanel {
private int dragXOffset = 0;
private int dragYOffset = 0;
- private void updateSigPos(int sigx, int sigy) {
- SignaturePanel.this.updateSigPos(
- sigx - SignaturePanel.this.offX,
- sigy - SignaturePanel.this.offY);
+ private void updateSigPosDrag(MouseEvent evt) {
+ SignaturePanel.this.setSignaturePosition(
+ SignaturePanel.this.scale(evt.getX() - this.dragXOffset, U.SCREEN_ABS, U.PAGE_ABS, Dim.X),
+ SignaturePanel.this.scale(evt.getY() - this.dragYOffset, U.SCREEN_ABS, U.PAGE_ABS, Dim.Y)
+ );
}
/** Handles a mouseMoved event */
@Override
public void mouseMoved(MouseEvent evt) {
try {
- boolean onSig = isOnSignature(evt.getX(), evt.getY());
+ boolean onSig = isOnSignature(evt);
setCursor(onSig ? Cursors.HAND : Cursors.DEFAULT);
} catch (NullPointerException e) {
// do nothing
@@ -446,19 +387,15 @@ public class SignaturePanel extends JPanel {
if (evt.getButton() == MouseEvent.BUTTON1)
{
this.doDrag = true;
- if (isOnSignature(evt.getX(), evt.getY())) {
- this.dragXOffset = (int)
- (SignaturePanel.this.sigScreenPos.getX() -
- (evt.getX() - SignaturePanel.this.offX));
- this.dragYOffset = (int)
- (SignaturePanel.this.sigScreenPos.getY() -
- (evt.getY() - SignaturePanel.this.offY));
- }
- else {
+ if (isOnSignature(evt)) {
+ /* offsets (in screen units) from top-left corner of signature to cursor on drag start */
+ this.dragXOffset = (int)(evt.getX() - SignaturePanel.this.scale(SignaturePanel.this.sigPagePos.getX(), U.PAGE_ABS, U.SCREEN_ABS, Dim.X));
+ this.dragYOffset = (int)(evt.getY() - SignaturePanel.this.scale(SignaturePanel.this.sigPagePos.getY(), U.PAGE_ABS, U.SCREEN_ABS, Dim.Y));
+ } else {
this.dragXOffset = 0;
this.dragYOffset = 0;
}
- updateSigPos(evt.getX() + this.dragXOffset, evt.getY() + this.dragYOffset);
+ updateSigPosDrag(evt);
setCursor(Cursors.MOVE);
}
}
@@ -467,7 +404,7 @@ public class SignaturePanel extends JPanel {
@Override
public void mouseReleased(MouseEvent evt) {
this.doDrag = false;
- boolean onSig = isOnSignature(evt.getX(), evt.getY());
+ boolean onSig = isOnSignature(evt);
setCursor(onSig ? Cursors.HAND : Cursors.DEFAULT);
}
@@ -477,7 +414,7 @@ public class SignaturePanel extends JPanel {
@Override
public void mouseDragged(MouseEvent evt) {
if (this.doDrag)
- updateSigPos(evt.getX() + this.dragXOffset, evt.getY() + this.dragYOffset);
+ updateSigPosDrag(evt);
}
};
@@ -507,37 +444,22 @@ public class SignaturePanel extends JPanel {
/**
* Check whether given point is on signature placeholder
- * @param x x coordinate
- * @param y y coordinate
+ * @param x x coordinate (screen)
+ * @param y y coordinate (screen)
* @return true if given point is on signature placeholder
*/
- boolean isOnSignature(int x, int y)
+ private boolean isOnSignature(MouseEvent evt)
{
- if (this.sigScreenPos == null)
+ if (this.sigPagePos == null)
return false;
Rectangle2D sig = new Rectangle2D.Double(
- this.sigScreenPos.getX() + this.offX,
- this.sigScreenPos.getY() + this.offY,
- this.sigScreenWidth,
- this.sigScreenHeight);
- Point2D pos = new Point2D.Double(x, y);
- return (sig.contains(pos));
- }
-
- /**
- * Update the signature placeholder position
- * @param sigx X position on the document (screen coordinates)
- * @param sigy Y position on the document (screen coordinates)
- */
- void updateSigPos(int sigx, int sigy) {
- if (this.currentImage == null)
- return;
- sigx = clamp(sigx, 0, this.currentImage.getWidth(null) - this.sigScreenWidth);
- sigy = clamp(sigy, 0, this.currentImage.getHeight(null) - this.sigScreenHeight);
- this.sigScreenPos = new Point2D.Double(sigx, sigy);
- this.sigPagePos = this.currentTransform.transform(this.sigScreenPos, this.sigPagePos);
- repaint();
+ this.scale(this.sigPagePos.getX(), U.PAGE_ABS, U.SCREEN_ABS, Dim.X),
+ this.scale(this.sigPagePos.getY(), U.PAGE_ABS, U.SCREEN_ABS, Dim.Y),
+ this.scale(this.sigPageWidth, U.PAGE_REL, U.SCREEN_REL, Dim.X),
+ this.scale(this.sigPageHeight, U.PAGE_REL, U.SCREEN_REL, Dim.Y)
+ );
+ return sig.contains(evt.getX(), evt.getY());
}
/**
@@ -547,7 +469,7 @@ public class SignaturePanel extends JPanel {
* @param max maximum value
* @return clamped x
*/
- static int clamp(int x, int min, int max)
+ private static double clamp(double x, double min, double max)
{
if (x < min)
x = min;