Partial kotlin implementation of IosCanvas

core/src/iosMain/kotlin/org/isoron/platform/gui/IosCanvas.kt

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker 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.
+ *
+ * Loop Habit Tracker 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 <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.platform.gui
+
+import platform.CoreGraphics.*
+import platform.UIKit.*
+
+val Color.uicolor: UIColor
+    get() = UIColor.colorWithRed(this.red, this.green, this.blue, this.alpha)
+
+val Color.cgcolor: CGColorRef?
+    get() = uicolor.CGColor
+
+class IosCanvas() : Canvas {
+    val ctx = UIGraphicsGetCurrentContext()
+    var textColor = UIColor.blackColor
+
+    override fun setColor(color: Color) {
+        CGContextSetStrokeColorWithColor(ctx, color.cgcolor)
+        CGContextSetFillColorWithColor(ctx, color.cgcolor)
+        textColor = color.uicolor
+    }
+
+    override fun drawLine(x1: Double, y1: Double, x2: Double, y2: Double) {
+    }
+
+    override fun drawText(text: String, x: Double, y: Double) {
+    }
+
+    override fun fillRect(x: Double, y: Double, width: Double, height: Double) {
+    }
+
+    override fun drawRect(x: Double, y: Double, width: Double, height: Double) {
+    }
+
+    override fun getHeight(): Double {
+        return 0.0
+    }
+
+    override fun getWidth(): Double {
+        return 0.0
+    }
+
+    override fun setFont(font: Font) {
+    }
+
+    override fun setFontSize(size: Double) {
+    }
+
+    override fun setStrokeWidth(size: Double) {
+    }
+
+    override fun fillArc(centerX: Double,
+                         centerY: Double,
+                         radius: Double,
+                         startAngle: Double,
+                         swipeAngle: Double) {
+    }
+
+    override fun fillCircle(centerX: Double, centerY: Double, radius: Double) {
+    }
+
+    override fun setTextAlign(align: TextAlign) {
+    }
+}