src/main/java/com/irtimaled/bbor/client/gui/ControlList.java

   1 package com.irtimaled.bbor.client.gui;
   2
   3 import com.irtimaled.bbor.client.renderers.Renderer;
   4 import com.mojang.blaze3d.platform.GLX;
   5 import net.minecraft.client.Minecraft;
   6 import net.minecraft.client.gui.AbstractGui;
   7 import net.minecraft.util.math.MathHelper;
   8 import org.lwjgl.opengl.GL11;
   9
  10 import java.util.ArrayList;
  11 import java.util.List;
  12
  13 public class ControlList extends AbstractGui implements IControlSet {
  14     public static final int CONTROLS_WIDTH = 310;
  15     protected static final int PADDING = 8;
  16
  17     protected final int listLeft;
  18     protected final List<ControlListEntry> entries = new ArrayList<>();
  19     private final int scrollBarLeft;
  20     private final int listHeight;
  21     private final Minecraft minecraft;
  22     private final int width;
  23     private final int height;
  24     private final int top;
  25     private final int bottom;
  26
  27     protected int contentHeight = PADDING;
  28     private double amountScrolled;
  29     private boolean clickedScrollbar;
  30     private boolean transparentBackground;
  31     private IControl focused;
  32     private boolean isDragging;
  33
  34     ControlList(int width, int height, int top, int bottom) {
  35         this.minecraft = Minecraft.getInstance();
  36         this.width = width;
  37         this.scrollBarLeft = width - 6;
  38         this.height = height;
  39         this.top = top;
  40         this.bottom = bottom;
  41         this.listHeight = bottom - top;
  42         this.listLeft = width / 2 - CONTROLS_WIDTH / 2;
  43     }
  44
  45     void add(ControlListEntry entry) {
  46         entry.index = entries.size();
  47         addEntry(entry);
  48     }
  49
  50     private void addEntry(ControlListEntry entry) {
  51         this.entries.add(entry);
  52         this.contentHeight += entry.getControlHeight();
  53     }
  54
  55     public void filter(String lowerValue) {
  56         int height = 0;
  57
  58         for (ControlListEntry entry : entries) {
  59             entry.filter(lowerValue);
  60             if (entry.isVisible()) {
  61                 height += entry.getControlHeight();
  62             } else if (entry == focused) {
  63                 focused = null;
  64             }
  65         }
  66         this.contentHeight = height + PADDING;
  67     }
  68
  69     void close() {
  70         this.entries.forEach(ControlListEntry::close);
  71     }
  72
  73     @Override
  74     public boolean mouseClicked(double mouseX, double mouseY, int button) {
  75         this.clickedScrollbar = button == 0 && mouseX >= (double) this.scrollBarLeft;
  76         return isMouseOver(mouseX, mouseY) &&
  77                 (IControlSet.super.mouseClicked(mouseX, mouseY, button) ||
  78                         this.clickedScrollbar);
  79     }
  80
  81     @Override
  82     public boolean isMouseOver(double mouseX, double mouseY) {
  83         return mouseY >= (double) this.top && mouseY <= (double) this.bottom;
  84     }
  85
  86     @Override
  87     public boolean changeFocus(boolean moveForward) {
  88         boolean newControlFocused = IControlSet.super.changeFocus(moveForward);
  89         if (newControlFocused) {
  90             this.ensureVisible((ControlListEntry) this.getFocused());
  91         }
  92
  93         return newControlFocused;
  94     }
  95
  96     private void ensureVisible(ControlListEntry control) {
  97         int controlTop = control.getControlTop();
  98         int controlHeight = control.getControlHeight();
  99         int distanceAboveTop = this.top - controlTop;
 100         if (distanceAboveTop > 0) {
 101             this.amountScrolled -= Math.max(controlHeight, distanceAboveTop + PADDING);
 102             return;
 103         }
 104
 105         int distanceBelowBottom = controlTop + controlHeight - this.bottom;
 106         if (distanceBelowBottom > 0) {
 107             this.amountScrolled += Math.max(controlHeight, distanceBelowBottom + PADDING);
 108         }
 109     }
 110
 111     @Override
 112     public boolean mouseDragged(double mouseX, double mouseY, int button, double p_mouseDragged_6_, double p_mouseDragged_8_) {
 113         if (IControlSet.super.mouseDragged(mouseX, mouseY, button, p_mouseDragged_6_, p_mouseDragged_8_)) {
 114             return true;
 115         }
 116         if (button == 0 && this.clickedScrollbar) {
 117             if (mouseY < (double) this.top) {
 118                 this.amountScrolled = 0.0D;
 119             } else if (mouseY > (double) this.bottom) {
 120                 this.amountScrolled = this.getMaxScroll();
 121             } else {
 122                 double maxScroll = this.getMaxScroll();
 123                 if (maxScroll < 1.0D) {
 124                     maxScroll = 1.0D;
 125                 }
 126
 127                 double amountScrolled = maxScroll / (double) (this.listHeight - getScrollBarHeight());
 128                 if (amountScrolled < 1.0D) {
 129                     amountScrolled = 1.0D;
 130                 }
 131
 132                 this.amountScrolled += p_mouseDragged_8_ * amountScrolled;
 133             }
 134
 135             return true;
 136         }
 137         return false;
 138     }
 139
 140     private int getMaxScroll() {
 141         return Math.max(0, this.contentHeight - (this.listHeight - 4));
 142     }
 143
 144     private int getScrollBarHeight() {
 145         return MathHelper.clamp((int) ((float) (this.listHeight * this.listHeight) / (float) this.contentHeight),
 146                 32,
 147                 this.listHeight - PADDING);
 148     }
 149
 150     @Override
 151     public boolean mouseScrolled(double mouseX, double mouseY, double scrollAmount) {
 152         this.amountScrolled -= scrollAmount * 10;
 153         return true;
 154     }
 155
 156     public void render(int mouseX, int mouseY) {
 157         this.amountScrolled = MathHelper.clamp(this.amountScrolled, 0.0D, this.getMaxScroll());
 158
 159         GL11.glDisable(GL11.GL_LIGHTING);
 160         GL11.glDisable(GL11.GL_FOG);
 161         if (!transparentBackground) drawListBackground();
 162
 163         int listTop = this.top + PADDING - (int) this.amountScrolled;
 164
 165         drawEntries(mouseX, mouseY, listTop);
 166
 167         GL11.glDisable(GL11.GL_DEPTH_TEST);
 168         this.overlayBackground(0, this.top);
 169         this.overlayBackground(this.bottom, this.height);
 170         GL11.glEnable(GL11.GL_BLEND);
 171         GLX.glBlendFuncSeparate(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA, GL11.GL_ZERO, GL11.GL_ONE);
 172         GL11.glDisable(GL11.GL_ALPHA_TEST);
 173         GL11.glShadeModel(GL11.GL_SMOOTH);
 174         GL11.glDisable(GL11.GL_TEXTURE_2D);
 175         drawOverlayShadows();
 176
 177         int maxScroll = this.getMaxScroll();
 178         if (maxScroll > 0) {
 179             drawScrollBar(maxScroll);
 180         }
 181
 182         GL11.glEnable(GL11.GL_TEXTURE_2D);
 183         GL11.glShadeModel(GL11.GL_FLAT);
 184         GL11.glEnable(GL11.GL_ALPHA_TEST);
 185         GL11.glDisable(GL11.GL_BLEND);
 186     }
 187
 188     private void drawListBackground() {
 189         this.minecraft.getTextureManager().bindTexture(AbstractGui.BACKGROUND_LOCATION);
 190         Renderer.startTextured()
 191                 .setColor(32, 32, 32)
 192                 .setAlpha(255)
 193                 .addPoint(0, this.bottom, 0.0D, (float) 0 / 32.0F, (float) (this.bottom + (int) this.amountScrolled) / 32.0F)
 194                 .addPoint(this.width, this.bottom, 0.0D, (float) this.width / 32.0F, (float) (this.bottom + (int) this.amountScrolled) / 32.0F)
 195                 .addPoint(this.width, this.top, 0.0D, (float) this.width / 32.0F, (float) (this.top + (int) this.amountScrolled) / 32.0F)
 196                 .addPoint(0, this.top, 0.0D, (float) 0 / 32.0F, (float) (this.top + (int) this.amountScrolled) / 32.0F)
 197                 .render();
 198     }
 199
 200     private void drawEntries(int mouseX, int mouseY, int top) {
 201         for (ControlListEntry entry : this.entries) {
 202             if (!entry.isVisible()) continue;
 203
 204             entry.setX(this.listLeft);
 205             entry.setY(top);
 206
 207             int height = entry.getControlHeight();
 208             drawEntry(mouseX, mouseY, top, entry, height);
 209             top += height;
 210         }
 211     }
 212
 213     protected void drawEntry(int mouseX, int mouseY, int top, ControlListEntry entry, int height) {
 214         entry.render(mouseX, mouseY);
 215     }
 216
 217     private void overlayBackground(int top, int bottom) {
 218         this.minecraft.getTextureManager().bindTexture(AbstractGui.BACKGROUND_LOCATION);
 219         GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
 220         Renderer.startTextured()
 221                 .setColor(64, 64, 64)
 222                 .setAlpha(255)
 223                 .addPoint(0, bottom, 0.0D, 0.0D, (float) bottom / 32.0F)
 224                 .addPoint(this.width, bottom, 0.0D, (float) this.width / 32.0F, (float) bottom / 32.0F)
 225                 .addPoint(this.width, top, 0.0D, (float) this.width / 32.0F, (float) top / 32.0F)
 226                 .addPoint(0, top, 0.0D, 0.0D, (float) top / 32.0F)
 227                 .render();
 228     }
 229
 230     private void drawScrollBar(int maxScroll) {
 231         int scrollBarHeight = this.getScrollBarHeight();
 232         int scrollBarTop = (int) this.amountScrolled * (this.listHeight - scrollBarHeight) / maxScroll + this.top;
 233         if (scrollBarTop < this.top) {
 234             scrollBarTop = this.top;
 235         }
 236
 237         Renderer.startTextured()
 238                 .setAlpha(255)
 239                 .addPoint(this.scrollBarLeft, this.bottom, 0.0D, 0.0D, 1.0D)
 240                 .addPoint(this.width, this.bottom, 0.0D, 1.0D, 1.0D)
 241                 .addPoint(this.width, this.top, 0.0D, 1.0D, 0.0D)
 242                 .addPoint(this.scrollBarLeft, this.top, 0.0D, 0.0D, 0.0D)
 243                 .render();
 244
 245         Renderer.startTextured()
 246                 .setColor(128, 128, 128)
 247                 .setAlpha(255)
 248                 .addPoint(this.scrollBarLeft, scrollBarTop + scrollBarHeight, 0.0D, 0.0D, 1.0D)
 249                 .addPoint(this.width, scrollBarTop + scrollBarHeight, 0.0D, 1.0D, 1.0D)
 250                 .addPoint(this.width, scrollBarTop, 0.0D, 1.0D, 0.0D)
 251                 .addPoint(this.scrollBarLeft, scrollBarTop, 0.0D, 0.0D, 0.0D)
 252                 .render();
 253
 254         Renderer.startTextured()
 255                 .setColor(192, 192, 192)
 256                 .setAlpha(255)
 257                 .addPoint(this.scrollBarLeft, scrollBarTop + scrollBarHeight - 1, 0.0D, 0.0D, 1.0D)
 258                 .addPoint(this.width - 1, scrollBarTop + scrollBarHeight - 1, 0.0D, 1.0D, 1.0D)
 259                 .addPoint(this.width - 1, scrollBarTop, 0.0D, 1.0D, 0.0D)
 260                 .addPoint(this.scrollBarLeft, scrollBarTop, 0.0D, 0.0D, 0.0D)
 261                 .render();
 262     }
 263
 264     private void drawOverlayShadows() {
 265         Renderer.startTextured()
 266                 .addPoint(0, this.top + 4, 0.0D, 0.0D, 1.0D)
 267                 .addPoint(this.width, this.top + 4, 0.0D, 1.0D, 1.0D)
 268                 .setAlpha(255)
 269                 .addPoint(this.width, this.top, 0.0D, 1.0D, 0.0D)
 270                 .addPoint(0, this.top, 0.0D, 0.0D, 0.0D)
 271                 .render();
 272         Renderer.startTextured()
 273                 .addPoint(this.width, this.bottom - 4, 0.0D, 1.0D, 0.0D)
 274                 .addPoint(0, this.bottom - 4, 0.0D, 0.0D, 0.0D)
 275                 .setAlpha(255)
 276                 .addPoint(0, this.bottom, 0.0D, 0.0D, 1.0D)
 277                 .addPoint(this.width, this.bottom, 0.0D, 1.0D, 1.0D)
 278                 .render();
 279     }
 280
 281     ControlList section(String title, CreateControl... createControls) {
 282         this.add(new ControlListSection(title, createControls));
 283         return this;
 284     }
 285
 286     void setTransparentBackground() {
 287         this.transparentBackground = true;
 288     }
 289
 290     @Override
 291     public List<? extends IControl> controls() {
 292         return entries;
 293     }
 294
 295     @Override
 296     public IControl getFocused() {
 297         return focused;
 298     }
 299
 300     @Override
 301     public void setFocused(IControl control) {
 302         this.focused = control;
 303     }
 304
 305     @Override
 306     public boolean isDragging() {
 307         return isDragging;
 308     }
 309
 310     @Override
 311     public void setDragging(boolean dragging) {
 312         this.isDragging = dragging;
 313     }
 314 }