From 2b21c850df2bc04970a8bb5d91d014e8cc47349a Mon Sep 17 00:00:00 2001
From: Kanro <higan@live.cn>
Date: Wed, 1 Nov 2023 19:04:36 +0800
Subject: [PATCH] Support IDE zoom and presentation mode (#234)

* Support zoom mode

* Update api

* Scale JBFont only

* Make retrieveDensity internal
---
 .../org/jetbrains/jewel/bridge/BridgeUtils.kt    | 16 +++++++++++++++-
 .../jetbrains/jewel/bridge/SwingBridgeService.kt |  4 ++++
 .../jewel/bridge/theme/SwingBridgeTheme.kt       |  6 +++++-
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/BridgeUtils.kt b/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/BridgeUtils.kt
index 5949bf3b9..d0ec88557 100644
--- a/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/BridgeUtils.kt
+++ b/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/BridgeUtils.kt
@@ -11,12 +11,14 @@ import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontStyle
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.platform.Typeface
+import androidx.compose.ui.unit.Density
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.DpSize
 import androidx.compose.ui.unit.TextUnit
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.compose.ui.unit.takeOrElse
+import com.intellij.ide.ui.UISettingsUtils
 import com.intellij.openapi.diagnostic.Logger
 import com.intellij.ui.JBColor
 import com.intellij.ui.JBColor.marker
@@ -32,6 +34,7 @@ import org.jetbrains.skiko.awt.font.AwtFontManager
 import org.jetbrains.skiko.toSkikoTypefaceOrNull
 import java.awt.Dimension
 import java.awt.Font
+import java.awt.GraphicsEnvironment
 import java.awt.Insets
 import javax.swing.UIManager
 
@@ -189,7 +192,7 @@ suspend fun retrieveTextStyle(
 
     return TextStyle(
         color = color,
-        fontSize = size.takeOrElse { derivedFont.size.sp },
+        fontSize = size.takeOrElse { derivedFont.size.sp / UISettingsUtils.getInstance().currentIdeScale },
         fontWeight = if (bold) FontWeight.Bold else FontWeight.Normal,
         fontStyle = fontStyle,
         fontFamily = FontFamily(Typeface(typeface)),
@@ -217,3 +220,14 @@ internal operator fun TextUnit.plus(delta: Float) =
         isEm -> TextUnit(value + delta, type)
         else -> this
     }
+
+internal fun retrieveDensity(): Density {
+    val ideaScale = UISettingsUtils.getInstance().currentIdeScale
+    val scale = GraphicsEnvironment.getLocalGraphicsEnvironment()
+        .defaultScreenDevice
+        .defaultConfiguration
+        .defaultTransform
+        .scaleX * ideaScale
+
+    return Density(scale.toFloat(), 1f)
+}
diff --git a/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/SwingBridgeService.kt b/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/SwingBridgeService.kt
index 390f0af74..c4e3f35a0 100644
--- a/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/SwingBridgeService.kt
+++ b/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/SwingBridgeService.kt
@@ -1,6 +1,7 @@
 package org.jetbrains.jewel.bridge
 
 import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.unit.Density
 import com.intellij.openapi.Disposable
 import com.intellij.openapi.components.Service
 import com.intellij.openapi.components.Service.Level
@@ -57,6 +58,7 @@ internal class SwingBridgeService : Disposable {
         return BridgeThemeData(
             themeDefinition = createBridgeThemeDefinition(),
             componentStyling = createBridgeComponentStyling(themeDefinition),
+            density = retrieveDensity(),
         )
     }
 
@@ -67,6 +69,7 @@ internal class SwingBridgeService : Disposable {
     internal data class BridgeThemeData(
         val themeDefinition: ThemeDefinition,
         val componentStyling: ComponentStyling,
+        val density: Density,
     ) {
 
         companion object {
@@ -82,6 +85,7 @@ internal class SwingBridgeService : Disposable {
                         dropdownTextStyle = TextStyle.Default,
                         linkTextStyle = TextStyle.Default,
                     ),
+                    density = retrieveDensity(),
                 )
             }
         }
diff --git a/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/theme/SwingBridgeTheme.kt b/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/theme/SwingBridgeTheme.kt
index 9b2fab4cd..484103d28 100644
--- a/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/theme/SwingBridgeTheme.kt
+++ b/ide-laf-bridge/src/main/kotlin/org/jetbrains/jewel/bridge/theme/SwingBridgeTheme.kt
@@ -4,6 +4,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
+import androidx.compose.ui.platform.LocalDensity
 import com.intellij.openapi.components.service
 import org.jetbrains.jewel.bridge.BridgePainterHintsProvider
 import org.jetbrains.jewel.bridge.SwingBridgeService
@@ -25,7 +26,10 @@ fun SwingBridgeTheme(content: @Composable () -> Unit) {
         ComponentStyling.with(themeData.componentStyling),
         swingCompatMode = true,
     ) {
-        CompositionLocalProvider(LocalPainterHintsProvider provides BridgePainterHintsProvider(themeData.themeDefinition.isDark)) {
+        CompositionLocalProvider(
+            LocalPainterHintsProvider provides BridgePainterHintsProvider(themeData.themeDefinition.isDark),
+            LocalDensity provides themeData.density,
+        ) {
             content()
         }
     }