GUIDialogBackground.java

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/*
 * This file is part of JXClient, the Fullscreen Java Crossfire Client.
 *
 * JXClient 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 version 2 of the License, or
 * (at your option) any later version.
 *
 * JXClient 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 Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with JXClient; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Copyright (C) 2005-2008 Yann Chachkoff
 * Copyright (C) 2006-2017,2019-2023 Andreas Kirschbaum
 * Copyright (C) 2010-2012,2014-2018,2020-2023 Nicolas Weeger
 */
 
package com.realtime.crossfire.jxclient.gui.misc;
 
import com.realtime.crossfire.jxclient.gui.gui.AbstractGUIElement;
import com.realtime.crossfire.jxclient.gui.gui.GUIElementListener;
import com.realtime.crossfire.jxclient.gui.gui.Gui;
import com.realtime.crossfire.jxclient.gui.gui.TooltipManager;
import com.realtime.crossfire.jxclient.gui.gui.TooltipText;
import com.realtime.crossfire.jxclient.skin.skin.GuiFactory;
import java.awt.AlphaComposite;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Point;
import java.awt.event.MouseEvent;
import javax.swing.JComponent;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
 
public class GUIDialogBackground extends AbstractGUIElement {
 
    private static final long serialVersionUID = 1L;
 
    @NotNull
    private final JXCWindowRenderer windowRenderer;
 
    @NotNull
    private final GuiFactory guiFactory;
 
    @NotNull
    private final Image frameNW;
 
    @NotNull
    private final Image frameN;
 
    @NotNull
    private final Image frameNE;
 
    @NotNull
    private final Image frameW;
 
    @NotNull
    private final Image frameC;
 
    @NotNull
    private final Image frameE;
 
    @NotNull
    private final Image frameSW;
 
    @NotNull
    private final Image frameS;
 
    @NotNull
    private final Image frameSE;
 
    private final int heightN;
 
    private final int heightS;
 
    private final int widthW;
 
    private final int widthE;
 
    private final float alpha;
 
    private boolean opaque;
 
    private boolean dragging;
 
    private boolean top;
 
    private boolean left;
 
    private boolean right;
 
    private boolean bottom;
 
    private int mouseX;
 
    private int mouseY;
 
    private int startX1;
 
    private int startY1;
 
    private int startX2;
 
    private int startY2;
 
    public GUIDialogBackground(@NotNull final TooltipManager tooltipManager, @NotNull final JXCWindowRenderer windowRenderer, @NotNull final GUIElementListener elementListener, @NotNull final String name, final float alpha, @NotNull final Image frameNW, @NotNull final Image frameN, @NotNull final Image frameNE, @NotNull final Image frameW, @NotNull final Image frameC, @NotNull final Image frameE, @NotNull final Image frameSW, @NotNull final Image frameS, @NotNull final Image frameSE, @NotNull final GuiFactory guiFactory) {
        super(tooltipManager, elementListener, name, alpha >= 1.0F, guiFactory);
        this.windowRenderer = windowRenderer;
        this.guiFactory = guiFactory;
        this.frameNW = frameNW;
        this.frameN = frameN;
        this.frameNE = frameNE;
        this.frameW = frameW;
        this.frameC = frameC;
        this.frameE = frameE;
        this.frameSW = frameSW;
        this.frameS = frameS;
        this.frameSE = frameSE;
        this.alpha = alpha;
        heightN = frameN.getHeight(null);
        heightS = frameS.getHeight(null);
        widthW = frameW.getWidth(null);
        widthE = frameE.getWidth(null);
        if (frameNW.getWidth(null) != widthW) {
            throw new IllegalArgumentException("frameNW.width="+frameNW.getWidth(null)+" != "+widthW+"=widthW");
        }
        if (frameSW.getWidth(null) != widthW) {
            throw new IllegalArgumentException("frameSW.width="+frameSW.getWidth(null)+" != "+widthW+"=widthW");
        }
        if (frameNE.getWidth(null) != widthE) {
            throw new IllegalArgumentException("frameNE.width="+frameNE.getWidth(null)+" != "+widthE+"=widthE");
        }
        if (frameSE.getWidth(null) != widthE) {
            throw new IllegalArgumentException("frameSE.width="+frameSE.getWidth(null)+" != "+widthE+"=widthE");
        }
        if (frameNW.getHeight(null) != heightN) {
            throw new IllegalArgumentException("frameNW.height="+frameNW.getHeight(null)+" != "+heightN+"heightN");
        }
        if (frameSW.getHeight(null) != heightS) {
            throw new IllegalArgumentException("frameSW.height="+frameSW.getHeight(null)+" != "+heightS+"=heightS");
        }
        if (frameNE.getHeight(null) != heightN) {
            throw new IllegalArgumentException("frameNE.height="+frameNE.getHeight(null)+" != "+heightN+"=heightN");
        }
        if (frameSE.getHeight(null) != heightS) {
            throw new IllegalArgumentException("frameSE.height="+frameSE.getHeight(null)+" != "+heightS+"=heightS");
        }
    }
 
    public void setOpaqueDialogBackground(final boolean opaque) {
        if (this.opaque == opaque) {
            return;
        }
 
        this.opaque = opaque;
        setOpaque(opaque || alpha >= 1.0F);
        repaint();
    }
 
    @Override
    public void paintComponent(@NotNull final Graphics g) {
        final Graphics paint;
        if (opaque || alpha >= 1.0F) {
            paint = g;
        } else {
            final Graphics2D g2d = (Graphics2D)g.create();
            g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
            paint = g2d;
        }
 
        super.paintComponent(paint);
        final int w = Math.max(1, getWidth()-widthW-widthE);
        final int h = Math.max(1, getHeight()-heightN-heightS);
        paint.drawImage(frameNW, 0, 0, null);
        paint.drawImage(frameN, widthW, 0, widthW+w, heightN, 0, 0, w, heightN, null);
        paint.drawImage(frameNE, widthW+w, 0, null);
        paint.drawImage(frameW, 0, heightN, widthW, heightN+h, 0, 0, widthW, h, null);
        paint.drawImage(frameC, widthW, heightN, widthW+w, heightN+h, 0, 0, w, h, null);
        paint.drawImage(frameE, widthW+w, heightN, widthW+w+widthE, heightN+h, 0, 0, widthE, h, null);
        paint.drawImage(frameSW, 0, heightN+h, null);
        paint.drawImage(frameS, widthW, heightN+h, widthW+w, heightN+h+heightS, 0, 0, w, heightS, null);
        paint.drawImage(frameSE, widthW+w, heightN+h, null);
        if (paint != g) {
            paint.dispose();
        }
    }
 
    @Nullable
    @Override
    @SuppressWarnings("MethodDoesntCallSuperMethod")
    public Dimension getPreferredSize() {
        return getMinimumSize();
    }
 
    @Nullable
    @Override
    @SuppressWarnings("MethodDoesntCallSuperMethod")
    public Dimension getMinimumSize() {
        return new Dimension(widthW+1+widthE, heightN+1+heightS);
    }
 
    @Override
    public void notifyOpen() {
    }
 
    @Nullable
    @Override
    public TooltipText getTooltip() {
        return null;
    }
 
    @Override
    @SuppressWarnings("MethodDoesntCallSuperMethod")
    public int getDialogBorderTop() {
        return frameN.getHeight(null);
    }
 
    @Override
    @SuppressWarnings("MethodDoesntCallSuperMethod")
    public int getDialogBorderLeft() {
        return frameW.getWidth(null);
    }
 
    @Override
    @SuppressWarnings("MethodDoesntCallSuperMethod")
    public int getDialogBorderRight() {
        return frameE.getWidth(null);
    }
 
    @Override
    @SuppressWarnings("MethodDoesntCallSuperMethod")
    public int getDialogBorderBottom() {
        return frameS.getHeight(null);
    }
 
    @Override
    public void mousePressed(@NotNull final MouseEvent e) {
        super.mousePressed(e);
 
        if (!isEnabled()) {
            return;
        }
 
        final Gui gui = guiFactory.getGui(this);
        if (gui == null || gui.isAutoSize() || !gui.isUserResizable()) {
            dragging = false;
            return;
        }
 
        final Point point = e.getLocationOnScreen();
        dragging = true;
 
        left = e.getX() < frameW.getWidth(null);
        right = e.getX() >= getWidth()-frameE.getWidth(null);
        top = e.getY() < frameN.getHeight(null);
        bottom = e.getY() >= getHeight()-frameS.getHeight(null);
        final JComponent component = gui.getComponent();
        startX1 = component.getX();
        startY1 = component.getY();
        startX2 = startX1+component.getWidth();
        startY2 = startY1+component.getHeight();
 
        mouseX = point.x-startX1;
        mouseY = point.y-startY1;
    }
 
    @Override
    public void mouseReleased(@NotNull final MouseEvent e) {
        super.mouseReleased(e);
        if (isEnabled()) {
            moveTo(e);
            dragging = false;
        }
    }
 
    @Override
    public void mouseDragged(@NotNull final MouseEvent e) {
        super.mouseDragged(e);
        if (isEnabled()) {
            moveTo(e);
        }
    }
 
    private void moveTo(@NotNull final MouseEvent e) {
        if (!dragging) {
            return;
        }
 
        final Gui gui = guiFactory.getGui(this);
        if (gui == null || gui.isAutoSize() || !gui.isUserResizable()) {
            dragging = false;
            return;
        }
 
        final Point point = e.getLocationOnScreen();
 
        final Dimension minimumSize = gui.getComponent().getMinimumSize();
        final Dimension maximumSize = gui.getComponent().getMaximumSize();
 
        int x1;
        int x2;
        if (left) {
            x1 = point.x-mouseX;
            x2 = startX2;
            if (minimumSize != null && x2-x1 < minimumSize.width) {
                x1 = x2-minimumSize.width;
            }
            if (maximumSize != null && x2-x1 > maximumSize.width) {
                x1 = x2-maximumSize.width;
            }
        } else if (right) {
            x1 = startX1;
            x2 = point.x-mouseX+startX2-startX1;
            if (minimumSize != null && x2-x1 < minimumSize.width) {
                x2 = x1+minimumSize.width;
            }
            if (maximumSize != null && x2-x1 > maximumSize.width) {
                x2 = x1+maximumSize.width;
            }
        } else {
            x1 = startX1;
            x2 = startX2;
        }
 
        int y1;
        int y2;
        if (top) {
            y1 = point.y-mouseY;
            y2 = startY2;
            if (minimumSize != null && y2-y1 < minimumSize.height) {
                y1 = y2-minimumSize.height;
            }
            if (maximumSize != null && y2-y1 > maximumSize.height) {
                y1 = y2-maximumSize.height;
            }
        } else if (bottom) {
            y1 = startY1;
            y2 = point.y-mouseY+startY2-startY1;
            if (minimumSize != null && y2-y1 < minimumSize.height) {
                y2 = y1+minimumSize.height;
            }
            if (maximumSize != null && y2-y1 > maximumSize.height) {
                y2 = y1+maximumSize.height;
            }
        } else {
            y1 = startY1;
            y2 = startY2;
        }
 
        gui.setBounds(x1, y1, x2-x1, y2-y1, windowRenderer.getWindowWidth(), windowRenderer.getWindowHeight());
    }
 
}