text: clicking test

src/main/java/de/bixilon/minosoft/data/text/BaseComponent.kt

@@ -268,4 +268,25 @@ class BaseComponent : ChatComponent {
         }
         return parts == other.parts
     }
+
+    override val length: Int
+        get() {
+            var length = 0
+            for (part in parts) {
+                length += part.length
+            }
+            return length
+        }
+
+    override fun getTextAt(pointer: Int): TextComponent {
+        var pointer = pointer
+        for (part in parts) {
+            val length = part.length
+            if (pointer < length) {
+                return part.getTextAt(pointer)
+            }
+            pointer -= length
+        }
+        throw IllegalArgumentException("Pointer ot of bounds!")
+    }
 }

src/main/java/de/bixilon/minosoft/data/text/ChatComponent.kt

@@ -67,6 +67,16 @@ interface ChatComponent {
      */
     fun applyDefaultColor(color: RGBColor)
 
+    /**
+     * @return The current text component at a specific pointer (char offset)
+     */
+    fun getTextAt(pointer: Int): TextComponent
+
+    /**
+     * The length in chars
+     */
+    val length: Int
+
 
     companion object {
         val EMPTY = ChatComponent.of("")

src/main/java/de/bixilon/minosoft/data/text/TextComponent.kt

@@ -211,10 +211,20 @@ open class TextComponent(
             color = color,
             formatting = formatting,
             clickEvent = clickEvent,
-            hoverEvent = hoverEvent
+            hoverEvent = hoverEvent,
         )
     }
 
+    override val length: Int
+        get() = message.length
+
+    override fun getTextAt(pointer: Int): TextComponent {
+        if (pointer < 0 || pointer > message.length) {
+            throw IllegalArgumentException("Pointer out of bounds: $pointer")
+        }
+        return this
+    }
+
     override fun hashCode(): Int {
         return message.hashCode()
     }

src/main/java/de/bixilon/minosoft/gui/rendering/gui/elements/text/TextElement.kt

@@ -18,6 +18,7 @@ import de.bixilon.kutil.primitive.BooleanUtil.decide
 import de.bixilon.minosoft.Minosoft
 import de.bixilon.minosoft.data.text.ChatComponent
 import de.bixilon.minosoft.data.text.RGBColor
+import de.bixilon.minosoft.data.text.TextComponent
 import de.bixilon.minosoft.gui.rendering.RenderConstants
 import de.bixilon.minosoft.gui.rendering.font.Font
 import de.bixilon.minosoft.gui.rendering.font.renderer.ChatComponentRenderer
@@ -27,6 +28,8 @@ import de.bixilon.minosoft.gui.rendering.gui.elements.Element
 import de.bixilon.minosoft.gui.rendering.gui.elements.HorizontalAlignments
 import de.bixilon.minosoft.gui.rendering.gui.elements.HorizontalAlignments.Companion.getOffset
 import de.bixilon.minosoft.gui.rendering.gui.elements.InfiniteSizeElement
+import de.bixilon.minosoft.gui.rendering.gui.input.mouse.MouseActions
+import de.bixilon.minosoft.gui.rendering.gui.input.mouse.MouseButtons
 import de.bixilon.minosoft.gui.rendering.gui.mesh.GUIMesh
 import de.bixilon.minosoft.gui.rendering.gui.mesh.GUIVertexConsumer
 import de.bixilon.minosoft.gui.rendering.gui.mesh.GUIVertexOptions
@@ -168,6 +171,28 @@ open class TextElement(
         renderInfo.currentLineNumber = 0
     }
 
+    override fun onMouseAction(position: Vec2i, button: MouseButtons, action: MouseActions) {
+        if (action != MouseActions.PRESS || button != MouseButtons.LEFT) {
+            return
+        }
+        val text = getTextComponentAt(position) ?: return
+        println(text)
+    }
+
+    private fun getTextComponentAt(position: Vec2i): TextComponent? {
+        val offset = Vec2i(position)
+        val line = renderInfo.lines.getOrNull(offset.y / charHeight) ?: return null
+        offset.y = offset.y % charHeight
+
+        val textElement = TextElement(guiRenderer, line.text, fontAlignment, false, backgroundColor, noBorder, parent, scale)
+        textElement._prefMaxSize = Vec2i(offset.x, charHeight)
+        textElement.forceSilentApply()
+
+        offset.x += fontAlignment.getOffset(size.x, line.width)
+
+        return line.text.getTextAt(textElement.renderInfo.lines.getOrNull(0)?.text?.message?.length ?: return null)
+    }
+
     override fun toString(): String {
         return chatComponent.toString()
     }

src/main/java/de/bixilon/minosoft/gui/rendering/gui/elements/text/TextFlowElement.kt

@@ -22,6 +22,8 @@ import de.bixilon.minosoft.gui.rendering.font.Font
 import de.bixilon.minosoft.gui.rendering.gui.GUIRenderer
 import de.bixilon.minosoft.gui.rendering.gui.elements.Element
 import de.bixilon.minosoft.gui.rendering.gui.elements.primitive.ColorElement
+import de.bixilon.minosoft.gui.rendering.gui.input.mouse.MouseActions
+import de.bixilon.minosoft.gui.rendering.gui.input.mouse.MouseButtons
 import de.bixilon.minosoft.gui.rendering.gui.mesh.GUIVertexConsumer
 import de.bixilon.minosoft.gui.rendering.gui.mesh.GUIVertexOptions
 import de.bixilon.minosoft.gui.rendering.util.vec.vec2.Vec2iUtil.EMPTY
@@ -178,6 +180,21 @@ open class TextFlowElement(
         }
     }
 
+    override fun onMouseAction(position: Vec2i, button: MouseButtons, action: MouseActions) {
+        val pair = getAt(position) ?: return
+        pair.first.textElement.onMouseAction(pair.second, button, action)
+    }
+
+    private fun getAt(position: Vec2i): Pair<TextFlowLineElement, Vec2i>? {
+        val reversedY = size.y - position.y
+        val line = visibleLines.getOrNull(reversedY / Font.TOTAL_CHAR_HEIGHT) ?: return null
+        if (position.x > line.textElement.size.x) {
+            return null
+        }
+        val offset = Vec2i(position.x, reversedY % Font.TOTAL_CHAR_HEIGHT)
+        return Pair(line, offset)
+    }
+
     override fun tick() {
         checkExpiredLines()
     }