aboutsummaryrefslogtreecommitdiff
path: root/src/main/java/kr/syeyoung/dungeonsguide/gui/elements/MScrollablePanel.java
blob: 42a3cb91cc16b5033ac38df27eebb55170f1b3ce (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
/*
 * Dungeons Guide - The most intelligent Hypixel Skyblock Dungeons Mod
 * Copyright (C) 2021  cyoung06
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published
 * by the Free Software Foundation, either version 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package kr.syeyoung.dungeonsguide.gui.elements;

import kr.syeyoung.dungeonsguide.gui.MPanel;
import kr.syeyoung.dungeonsguide.utils.RenderUtils;
import lombok.Getter;
import lombok.Setter;
import net.minecraft.client.gui.Gui;
import net.minecraft.util.MathHelper;
import org.w3c.dom.css.Rect;

import java.awt.*;

public class MScrollablePanel extends MPanel {
    @Getter
    private boolean hideScrollBarWhenNotNecessary = false;

    public void setHideScrollBarWhenNotNecessary(boolean hideScrollBarWhenNotNecessary) {
        this.hideScrollBarWhenNotNecessary = hideScrollBarWhenNotNecessary;
        setBounds(getBounds());
    }

    private final int axis; // 1: Y 2: X 3: both.


    private MPanel viewPort;
    @Getter
    private MPanel contentArea;
    @Getter
    private MScrollBar scrollBarX, scrollBarY;

    private Rectangle contentAreaDim;

    public MScrollablePanel(int axis) {
        this.axis = axis;
        viewPort = new MPanel();
        scrollBarX = new MScrollBar(0, 1, 1, 0, MScrollBar.Axis.X, this::onScrollBarUpdate);
        scrollBarY = new MScrollBar(0, 1, 1, 0, MScrollBar.Axis.Y, this::onScrollBarUpdate);

        if ((axis & 1) > 0)
            super.add(scrollBarY);
        if ((axis & 2) > 0)
            super.add(scrollBarX);
        super.add(viewPort);


        contentArea = new MPanel() {
            @Override
            public void add(MPanel child) {
                super.add(child);
                evalulateContentArea();
            }

            @Override
            public void remove(MPanel panel) {
                super.remove(panel);
                evalulateContentArea();
            }

            @Override
            public void setBounds(Rectangle bounds) {
                if (bounds == null) return;
                this.bounds.x = bounds.x;
                this.bounds.y = bounds.y;
                this.bounds.width = bounds.width;
                this.bounds.height = bounds.height;

                onBoundsUpdate();
            }

            @Override
            public void resize(int parentWidth, int parentHeight) {
                for (MPanel childComponent : childComponents) {
                    childComponent.resize0(parentWidth, parentHeight);
                }
                evalulateContentArea();
            }
        };
        viewPort.add(contentArea);
        contentArea.setIgnoreBoundOnClip(true);
        evalulateContentArea();
    }

    @Override
    public void render(int absMousex, int absMousey, int relMousex0, int relMousey0, float partialTicks, Rectangle scissor) {
        super.render(absMousex, absMousey, relMousex0, relMousey0, partialTicks, scissor);

        boolean hideX = false, hideY = false;
        if (bounds.width > contentAreaDim.width && hideScrollBarWhenNotNecessary) hideX = true;
        if (bounds.height > contentAreaDim.height && hideScrollBarWhenNotNecessary) hideY = true;
        if (axis == 3 && !(hideX && hideY)) {
            Gui.drawRect(scrollBarX.getBounds().width, scrollBarY.getBounds().height, getBounds().width, getBounds().height, RenderUtils.blendAlpha(0x141414, 0.03f));
        }
    }

    public void evalulateContentArea() {
        if (contentArea.getChildComponents().size() == 0) {
            contentAreaDim= new Rectangle(0,0,0,0);
            return;
        }
        int minX = Integer.MAX_VALUE, minY = Integer.MAX_VALUE, maxX = Integer.MIN_VALUE, maxY = Integer.MIN_VALUE;
        for (MPanel childComponent : contentArea.getChildComponents()) {
            Rectangle bounds = childComponent.getBounds();
            if (bounds.x < minX) minX = bounds.x;
            if (bounds.x + bounds.width > maxX) maxX = bounds.x + bounds.width;
            if (bounds.y < minY) minY = bounds.y;
            if (bounds.y + bounds.height > maxY) maxY = bounds.y + bounds.height;
        }
        contentAreaDim = new Rectangle(minX, minY, maxX - minX, maxY - minY);
        scrollBarX.setMin(contentAreaDim.x);
        scrollBarX.setMax(contentAreaDim.x + contentAreaDim.width);
        scrollBarY.setMin(contentAreaDim.y);
        scrollBarY.setMax(contentAreaDim.y + contentAreaDim.height);
    }

    @Override
    public void setBounds(Rectangle bounds) {
        super.setBounds(bounds);
        boolean hideX = (axis & 2) == 0, hideY = (axis & 1) == 0;
        viewPort.setBounds(new Rectangle(0,0,bounds.width, bounds.height));
        evalulateContentArea();
        if (bounds.width >= contentAreaDim.width && hideScrollBarWhenNotNecessary) hideX = true;
        if (bounds.height >= contentAreaDim.height && hideScrollBarWhenNotNecessary) hideY = true;

        if (!(hideX || hideY)) {
            Dimension preferedX = scrollBarX.getPreferredSize();
            Dimension preferedY = scrollBarY.getPreferredSize();
            scrollBarY.setBounds(new Rectangle(bounds.width - preferedY.width, 0, preferedY.width, bounds.height - preferedX.height));
            scrollBarX.setBounds(new Rectangle(0, bounds.height - preferedX.height, bounds.width - preferedY.width, preferedX.height));
        } else if ((hideY && !hideX)) {
            Dimension preferedX = scrollBarX.getPreferredSize();
            scrollBarY.setBounds(new Rectangle(0,0,0,0));
            scrollBarX.setBounds(new Rectangle(0, bounds.height - preferedX.height, bounds.width, preferedX.height));
        } else if ((hideX && !hideY)) {
            Dimension preferedY = scrollBarY.getPreferredSize();
            scrollBarX.setBounds(new Rectangle(0,0,0,0));
            scrollBarY.setBounds(new Rectangle(bounds.width - preferedY.width, 0, preferedY.width, bounds.height));
        } else if (hideX && hideY){
            scrollBarY.setBounds(new Rectangle(0,0,0,0));
            scrollBarX.setBounds(new Rectangle(0,0,0,0));
        }

        viewPort.setBounds(new Rectangle(0,0,bounds.width-scrollBarY.getBounds().width, bounds.height - scrollBarX.getBounds().height));

        scrollBarX.setThumbSize(viewPort.getBounds().width);
        scrollBarY.setThumbSize(viewPort.getBounds().height);
    }


    private void onScrollBarUpdate() {
        contentArea.setPosition(new Point(-scrollBarX.getCurrent(), -scrollBarY.getCurrent()));
    }


    @Override
    public void add(MPanel child) { contentArea.add(child); }

    @Override
    public void remove(MPanel panel) { contentArea.remove(panel); }

    @Override
    public void mouseScrolled(int absMouseX, int absMouseY, int relMouseX0, int relMouseY0, int scrollAmount) {
        if (lastAbsClip.contains(absMouseX, absMouseY) && (axis == 1 || axis == 3)) {
            scrollBarY.addToCurrent(MathHelper.clamp_int(scrollAmount, -1, 1) * -30);
        }
    }
}