/*
GNU GENERAL LICENSE
Copyright (C) 2006 The Lobo Project. Copyright (C) 2014 - 2017 Lobo Evolution
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
verion 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General License for more details.
You should have received a copy of the GNU General Public
along with this program. If not, see <http://www.gnu.org/licenses/>.
Contact info: lobochief@users.sourceforge.net; ivan.difrancesco@yahoo.it
*/
package org.lobobrowser.util.gui;
import java.awt.Frame;
import java.awt.Graphics;
/**
* The Class GUITasks.
*/
public class GUITasks {
/** Gets the top frame.
*
* @return the top frame
*/
public static Frame getTopFrame() {
Frame[] frames = Frame.getFrames();
for (int i = 0; i < frames.length; i++) {
if (frames[i].getFocusOwner() != null) {
return frames[i];
}
}
if (frames.length > 0) {
return frames[0];
}
return null;
}
/**
* Draw dashed.
*
* @param g
* the g
* @param x1
* the x1
* @param y1
* the y1
* @param x2
* the x2
* @param y2
* the y2
* @param dashSize
* the dash size
* @param gapSize
* the gap size
*/
public static void drawDashed(Graphics g, int x1, int y1, int x2, int y2,
int dashSize, int gapSize) {
if (x2 < x1) {
int temp = x1;
x1 = x2;
x2 = temp;
}
if (y2 < y1) {
int temp = y1;
y1 = y2;
y2 = temp;
}
int totalDash = dashSize + gapSize;
if (y1 == y2) {
int virtualStartX = (x1 / totalDash) * totalDash;
for (int x = virtualStartX; x < x2; x += totalDash) {
int topX = x + dashSize;
if (topX > x2) {
topX = x2;
}
int firstX = x;
if (firstX < x1) {
firstX = x1;
}
if (firstX < topX) {
g.drawLine(firstX, y1, topX, y1);
}
}
} else if (x1 == x2) {
int virtualStartY = (y1 / totalDash) * totalDash;
for (int y = virtualStartY; y < y2; y += totalDash) {
int topY = y + dashSize;
if (topY > y2) {
topY = y2;
}
int firstY = y;
if (firstY < y1) {
firstY = y1;
}
if (firstY < topY) {
g.drawLine(x1, firstY, x1, topY);
}
}
} else {
// Not supported
g.drawLine(x1, y1, x2, y2);
}
}
}