screen test, screen fixes

src/integration-test/kotlin/de/bixilon/minosoft/gui/rendering/gui/gui/screen/ScreenTest.kt

@@ -0,0 +1,79 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020-2023 Moritz Zwerger
+ *
+ * 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 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.gui.rendering.gui.gui.screen
+
+import de.bixilon.kotlinglm.vec2.Vec2
+import de.bixilon.kotlinglm.vec2.Vec2i
+import de.bixilon.minosoft.gui.rendering.gui.GUIRenderer
+import de.bixilon.minosoft.gui.rendering.gui.properties.GUIScreen
+import de.bixilon.minosoft.gui.rendering.gui.test.GuiRenderTestUtil
+import de.bixilon.minosoft.gui.rendering.gui.test.GuiTestConsumer
+import org.testng.Assert.*
+import org.testng.annotations.Test
+
+@Test(groups = ["gui"])
+class ScreenTest {
+
+    fun initialize() {
+        screen(GuiRenderTestUtil.create())
+    }
+
+    fun `verify clean`() {
+        val screen = screen(GuiRenderTestUtil.create())
+        assertFalse(screen.update)
+    }
+
+    fun `verify initial size`() {
+        val screen = screen(GuiRenderTestUtil.create())
+        assertEquals(screen.size, Vec2(1920, 1080))
+    }
+
+    fun `modify size`() {
+        val renderer = GuiRenderTestUtil.create()
+        val screen = screen(renderer)
+        renderer.screen = GUIScreen(Vec2i(123, 345), Vec2(123, 345))
+        screen.invalidate()
+        assertTrue(screen.update)
+        screen.tryUpdate()
+        assertFalse(screen.update)
+        assertEquals(screen.size, Vec2(123, 345))
+    }
+
+    fun `rendering initial size`() {
+        val renderer = GuiRenderTestUtil.create()
+        val screen = screen(renderer)
+        val consumer = GuiTestConsumer()
+        screen.render(Vec2(), consumer, null)
+
+        consumer.assert(GuiTestConsumer.RendererdQuad(Vec2(0, 0), Vec2(1920, 1080)))
+    }
+
+    fun `rendering modified size`() {
+        val renderer = GuiRenderTestUtil.create()
+        val screen = screen(renderer)
+
+        renderer.screen = GUIScreen(Vec2i(123, 345), Vec2(123, 345))
+        screen.invalidate()
+        screen.tryUpdate()
+
+        val consumer = GuiTestConsumer()
+        screen.render(Vec2(), consumer, null)
+
+        consumer.assert(GuiTestConsumer.RendererdQuad(Vec2(0, 0), Vec2(123, 345)))
+    }
+
+
+    private fun screen(guiRenderer: GUIRenderer) = object : Screen(guiRenderer) {
+    }
+}

src/main/java/de/bixilon/minosoft/gui/rendering/gui/gui/screen/Screen.kt

@@ -33,10 +33,15 @@ abstract class Screen(
     override val screenOffset: Vec2 = Vec2(0, 0)
 
 
+    init {
+        construct()
+        background.parent = this
+    }
+
     override fun update() {
-        super.update()
         background.preferredSize = guiRenderer.screen.scaled
         size = guiRenderer.screen.scaled
+        super.update()
     }
 
     override fun forceRender(offset: Vec2, consumer: GUIVertexConsumer, options: GUIVertexOptions?) {