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Issue #758 Allow zooming more than preview area in internal viewer

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Jindra Petřík
2016-01-24 11:44:45 +01:00
parent f04a8827d4
commit cb2cba91e8
1 changed files with 76 additions and 11 deletions
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87
src/com/jpexs/decompiler/flash/gui/ImagePanel.java
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@@ -166,6 +166,56 @@ public final class ImagePanel extends JPanel implements MediaDisplay {
private List<Shape> outlines;
private boolean autoFit = false;
private boolean allowMove = true;
private Point dragStart = null;
private Point offsetPoint = new Point(0, 0);
public boolean hasAllowMove() {
return allowMove;
}
public IconPanel() {
addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
if (e.getButton() == MouseEvent.BUTTON1) {
dragStart = e.getPoint();
}
}
@Override
public void mouseReleased(MouseEvent e) {
if (e.getButton() == MouseEvent.BUTTON1) {
dragStart = null;
}
}
});
addMouseMotionListener(new MouseMotionAdapter() {
@Override
public void mouseDragged(MouseEvent e) {
if (dragStart != null && allowMove) {
Point dragEnd = e.getPoint();
Point delta = new Point(dragEnd.x - dragStart.x, dragEnd.y - dragStart.y);
offsetPoint.x += delta.x;
offsetPoint.y += delta.y;
dragStart = dragEnd;
repaint();
}
}
});
}
public void setAutoFit(boolean autoFit) {
this.autoFit = autoFit;
repaint();
}
public BufferedImage getLastImage() {
return img.getBufferedImage();
}
@@ -202,6 +252,13 @@ public final class ImagePanel extends JPanel implements MediaDisplay {
return new Point((p.x - rect.x) * img.getWidth() / rect.width, (p.y - rect.y) * img.getHeight() / rect.height);
}
private void setAllowMove(boolean allowMove) {
this.allowMove = allowMove;
if (!allowMove) {
offsetPoint = new Point();
}
}
private void calcRect() {
if (img != null) {
int w1 = img.getWidth();
@@ -212,21 +269,27 @@ public final class ImagePanel extends JPanel implements MediaDisplay {
int w;
int h;
if (w1 <= w2 && h1 <= h2) {
if (autoFit) {
if (w1 <= w2 && h1 <= h2) {
w = w1;
h = h1;
} else {
h = h1 * w2 / w1;
if (h > h2) {
w = w1 * h2 / h1;
h = h2;
} else {
w = w2;
}
}
} else {
w = w1;
h = h1;
} else {
h = h1 * w2 / w1;
if (h > h2) {
w = w1 * h2 / h1;
h = h2;
} else {
w = w2;
}
}
rect = new Rectangle(getWidth() / 2 - w / 2, getHeight() / 2 - h / 2, w, h);
setAllowMove(h > h2 || w > w2);
rect = new Rectangle(getWidth() / 2 - w / 2 + offsetPoint.x, getHeight() / 2 - h / 2 + offsetPoint.y, w, h);
} else {
rect = null;
}
@@ -338,6 +401,8 @@ public final class ImagePanel extends JPanel implements MediaDisplay {
if (handCursor) {
iconPanel.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
} else if (iconPanel.hasAllowMove()) {
iconPanel.setCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
} else {
iconPanel.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
}