Finish Kotlin implementation of IosCanvas

pull/504/head
Alinson S. Xavier 6 years ago
parent 74475bd191
commit 563aa8b7b4

@ -19,8 +19,11 @@
package org.isoron.platform.gui
import kotlinx.cinterop.*
import platform.CoreGraphics.*
import platform.Foundation.*
import platform.UIKit.*
import kotlin.math.*
val Color.uicolor: UIColor
get() = UIColor.colorWithRed(this.red, this.green, this.blue, this.alpha)
@ -30,9 +33,13 @@ val Color.cgcolor: CGColorRef?
class IosCanvas(val width: Double,
val height: Double,
val pixelScale: Double = 2.0
val scale: Double = 2.0
) : Canvas {
var textColor = UIColor.blackColor
var font = Font.REGULAR
var fontSize = 12.0
var textAlign = TextAlign.CENTER
val ctx = UIGraphicsGetCurrentContext()!!
override fun setColor(color: Color) {
@ -42,28 +49,46 @@ class IosCanvas(val width: Double,
}
override fun drawLine(x1: Double, y1: Double, x2: Double, y2: Double) {
CGContextMoveToPoint(ctx, x1 * pixelScale, y1 * pixelScale)
CGContextAddLineToPoint(ctx, x2 * pixelScale, y2 * pixelScale)
CGContextMoveToPoint(ctx, x1 * scale, y1 * scale)
CGContextAddLineToPoint(ctx, x2 * scale, y2 * scale)
CGContextStrokePath(ctx)
}
@Suppress("CAST_NEVER_SUCCEEDS")
override fun drawText(text: String, x: Double, y: Double) {
val sx = scale * x
val sy = scale * y
val nsText = (text as NSString)
val uiFont = when (font) {
Font.REGULAR -> UIFont.systemFontOfSize(fontSize)
Font.BOLD -> UIFont.boldSystemFontOfSize(fontSize)
Font.FONT_AWESOME -> UIFont.fontWithName("FontAwesome", fontSize)
}
val size = nsText.sizeWithFont(uiFont)
val width = size.useContents { width }
val height = size.useContents { height }
val origin = when (textAlign) {
TextAlign.CENTER -> CGPointMake(sx - width / 2, sy - height / 2)
TextAlign.LEFT -> CGPointMake(sx, sy - height / 2)
TextAlign.RIGHT -> CGPointMake(sx - width, sy - height / 2)
}
nsText.drawAtPoint(origin, uiFont)
}
override fun fillRect(x: Double, y: Double, width: Double, height: Double) {
CGContextFillRect(ctx,
CGRectMake(x * pixelScale,
y * pixelScale,
width * pixelScale,
height * pixelScale))
CGRectMake(x * scale,
y * scale,
width * scale,
height * scale))
}
override fun drawRect(x: Double, y: Double, width: Double, height: Double) {
CGContextStrokeRect(ctx,
CGRectMake(x * pixelScale,
y * pixelScale,
width * pixelScale,
height * pixelScale))
CGRectMake(x * scale,
y * scale,
width * scale,
height * scale))
}
override fun getHeight(): Double {
@ -75,14 +100,15 @@ class IosCanvas(val width: Double,
}
override fun setFont(font: Font) {
this.font = font
}
override fun setFontSize(size: Double) {
CGContextSetFontSize(ctx, size * pixelScale)
this.fontSize = size * scale
}
override fun setStrokeWidth(size: Double) {
CGContextSetLineWidth(ctx, size * pixelScale)
CGContextSetLineWidth(ctx, size * scale)
}
override fun fillArc(centerX: Double,
@ -90,12 +116,31 @@ class IosCanvas(val width: Double,
radius: Double,
startAngle: Double,
swipeAngle: Double) {
val a1 = startAngle / 180 * PI * (-1)
val a2 = a1 - swipeAngle / 180 * PI
CGContextBeginPath(ctx)
CGContextMoveToPoint(ctx, centerX * scale, centerY * scale)
CGContextAddArc(ctx,
centerX * scale,
centerY * scale,
radius * scale,
a1,
a2,
if (swipeAngle > 0) 1 else 0)
CGContextClosePath(ctx)
CGContextFillPath(ctx)
}
override fun fillCircle(centerX: Double, centerY: Double, radius: Double) {
val rect = CGRectMake(scale * (centerX - radius),
scale * (centerY - radius),
scale * radius * 2.0,
scale * radius * 2.0)
CGContextFillEllipseInRect(ctx, rect)
}
override fun setTextAlign(align: TextAlign) {
this.textAlign = align
}
override fun toImage(): Image {

@ -26,7 +26,7 @@ fun sqlite3_errstr(db: CPointer<sqlite3>): String {
return "SQLite3 error: " + sqlite3_errmsg(db).toString()
}
class IosDatabaseOpener() : DatabaseOpener {
class IosDatabaseOpener : DatabaseOpener {
override fun open(file: UserFile): Database = memScoped {
val db = alloc<CPointerVar<sqlite3>>()
val path = (file as IosFile).path

@ -19,7 +19,6 @@
package org.isoron
import kotlinx.cinterop.*
import org.isoron.platform.gui.*
import org.isoron.platform.io.*
import org.isoron.platform.time.*
@ -40,7 +39,7 @@ actual object DependencyResolver {
actual fun createCanvas(width: Int, height: Int): Canvas {
val scale = 2.0
UIGraphicsBeginImageContext(CGSizeMake(width * scale, height * scale))
return IosCanvas(width * scale, height * scale, pixelScale = scale)
return IosCanvas(width * scale, height * scale, scale = scale)
}
actual suspend fun getDatabase(): Database {

@ -30,7 +30,7 @@ import UIKit
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
backend = Backend(databaseName: "uhabits.db",
databaseOpener: IosDatabaseOpener(withLog: log),
databaseOpener: IosDatabaseOpener(),
fileOpener: IosFileOpener(),
localeHelper: IosLocaleHelper(log: log),
log: log,

@ -0,0 +1,44 @@
/*
* 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/>.
*/
import UIKit
class ComponentView : UIView {
var component: Component?
init(frame: CGRect, component: Component?) {
self.component = component
super.init(frame: frame)
}
required init?(coder aDecoder: NSCoder) {
fatalError()
}
override func draw(_ rect: CGRect) {
let canvas = IosCanvas(width: Double(rect.width),
height: Double(rect.height),
scale: 1.0)
component?.draw(canvas: canvas)
}
override func layoutSubviews() {
setNeedsDisplay()
}
}

@ -1,173 +0,0 @@
/*
* 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/>.
*/
import UIKit
extension Color {
var uicolor: UIColor {
return UIColor(red: CGFloat(self.red),
green: CGFloat(self.green),
blue: CGFloat(self.blue),
alpha: CGFloat(self.alpha))
}
var cgcolor : CGColor {
return uicolor.cgColor
}
}
class ComponentView : UIView {
var component: Component?
init(frame: CGRect, component: Component?) {
self.component = component
super.init(frame: frame)
}
required init?(coder aDecoder: NSCoder) {
fatalError()
}
override func draw(_ rect: CGRect) {
let canvas = IosCanvas(withBounds: bounds)
component?.draw(canvas: canvas)
}
override func layoutSubviews() {
setNeedsDisplay()
}
}
class IosCanvas : NSObject, Canvas {
var bounds: CGRect
var ctx: CGContext
var font = Font.regular
var textSize = CGFloat(12)
var textColor = UIColor.black
var textAlign = TextAlign.center
init(withBounds bounds: CGRect) {
self.bounds = bounds
self.ctx = UIGraphicsGetCurrentContext()!
}
func setColor(color: Color) {
self.ctx.setStrokeColor(color.cgcolor)
self.ctx.setFillColor(color.cgcolor)
textColor = color.uicolor
}
func drawLine(x1: Double, y1: Double, x2: Double, y2: Double) {
self.ctx.move(to: CGPoint(x: CGFloat(x1), y: CGFloat(y1)))
self.ctx.addLine(to: CGPoint(x: CGFloat(x2), y: CGFloat(y2)))
self.ctx.strokePath()
}
func drawText(text: String, x: Double, y: Double) {
let nsText = text as NSString
var uifont = UIFont.systemFont(ofSize: textSize)
if font == Font.bold {
uifont = UIFont.boldSystemFont(ofSize: textSize)
}
if font == Font.fontAwesome {
uifont = UIFont(name: "FontAwesome", size: textSize)!
}
let attrs = [NSAttributedString.Key.font: uifont,
NSAttributedString.Key.foregroundColor: textColor]
let size = nsText.size(withAttributes: attrs)
if textAlign == TextAlign.center {
nsText.draw(at: CGPoint(x: CGFloat(x) - size.width / 2,
y : CGFloat(y) - size.height / 2),
withAttributes: attrs)
} else if textAlign == TextAlign.left {
nsText.draw(at: CGPoint(x: CGFloat(x),
y : CGFloat(y) - size.height / 2),
withAttributes: attrs)
} else {
nsText.draw(at: CGPoint(x: CGFloat(x) - size.width,
y : CGFloat(y) - size.height / 2),
withAttributes: attrs)
}
}
func drawRect(x: Double, y: Double, width: Double, height: Double) {
self.ctx.stroke(CGRect(x: CGFloat(x),
y: CGFloat(y),
width: CGFloat(width),
height: CGFloat(height)))
}
func fillRect(x: Double, y: Double, width: Double, height: Double) {
self.ctx.fill(CGRect(x: CGFloat(x),
y: CGFloat(y),
width: CGFloat(width),
height: CGFloat(height)))
}
func getHeight() -> Double {
return Double(bounds.height)
}
func getWidth() -> Double {
return Double(bounds.width)
}
func setFontSize(size: Double) {
self.textSize = CGFloat(size)
}
func setFont(font: Font) {
self.font = font
}
func setStrokeWidth(size: Double) {
self.ctx.setLineWidth(CGFloat(size))
}
func setTextAlign(align: TextAlign) {
self.textAlign = align
}
func fillArc(centerX: Double, centerY: Double, radius: Double, startAngle: Double, swipeAngle: Double) {
let center = CGPoint(x: CGFloat(centerX), y: CGFloat(centerY))
let a1 = startAngle / 180 * .pi * (-1)
let a2 = a1 - swipeAngle / 180 * .pi
self.ctx.beginPath()
self.ctx.move(to: center)
self.ctx.addArc(center: center,
radius: CGFloat(radius),
startAngle: CGFloat(a1),
endAngle: CGFloat(a2),
clockwise: swipeAngle >= 0)
self.ctx.closePath()
self.ctx.fillPath()
}
func fillCircle(centerX: Double, centerY: Double, radius: Double) {
self.ctx.fillEllipse(in: CGRect(x: CGFloat(centerX - radius),
y: CGFloat(centerY - radius),
width: CGFloat(radius * 2),
height: CGFloat(radius * 2)))
}
}

@ -1,68 +0,0 @@
/*
* 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/>.
*/
import XCTest
import UIKit
@testable import uhabits
class IosCanvasTest : XCTestCase {
func testDraw() {
UIGraphicsBeginImageContext(CGSize(width: 500, height: 400))
let canvas = IosCanvas(withBounds: CGRect(x: 0, y: 0, width: 500, height: 400))
canvas.setColor(color: Color(rgb: 0x303030))
canvas.fillRect(x: 0.0, y: 0.0, width: 500.0, height: 400.0)
canvas.setColor(color: Color(rgb: 0x606060))
canvas.setStrokeWidth(size: 25.0)
canvas.drawRect(x: 100.0, y: 100.0, width: 300.0, height: 200.0)
canvas.setColor(color: Color(rgb: 0xFFFF00))
canvas.setStrokeWidth(size: 1.0)
canvas.fillCircle(centerX: 50.0, centerY: 50.0, radius: 30.0)
canvas.fillArc(centerX: 50.0, centerY: 150.0, radius: 30.0, startAngle: 90.0, swipeAngle: 135.0)
canvas.fillArc(centerX: 50.0, centerY: 250.0, radius: 30.0, startAngle: 90.0, swipeAngle: -135.0)
canvas.fillArc(centerX: 50.0, centerY: 350.0, radius: 30.0, startAngle: 45.0, swipeAngle: 90.0)
canvas.drawRect(x: 0.0, y: 0.0, width: 100.0, height: 100.0)
canvas.drawRect(x: 0.0, y: 100.0, width: 100.0, height: 100.0)
canvas.drawRect(x: 0.0, y: 200.0, width: 100.0, height: 100.0)
canvas.drawRect(x: 0.0, y: 300.0, width: 100.0, height: 100.0)
canvas.setColor(color: Color(rgb: 0xFF0000))
canvas.setStrokeWidth(size: 2.0)
canvas.drawLine(x1: 0.0, y1: 0.0, x2: 500.0, y2: 400.0)
canvas.drawLine(x1: 500.0, y1: 0.0, x2: 0.0, y2: 400.0)
canvas.setFontSize(size: 50.0)
canvas.setColor(color: Color(rgb: 0x00FF00))
canvas.drawText(text: "Test", x: 250.0, y: 200.0)
canvas.setFont(font: Font.bold)
canvas.drawText(text: "Test", x: 250.0, y: 100.0)
canvas.setFont(font: Font.fontAwesome)
canvas.drawText(text: FontAwesome.Companion().check, x: 250.0, y: 300.0)
let image = UIGraphicsGetImageFromCurrentImageContext()!
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
let filePath = paths.first?.appendingPathComponent("IosCanvasTest.png")
try! image.pngData()!.write(to: filePath!, options: .atomic)
}
}

@ -17,8 +17,7 @@
00C0C6BF22465F65003D8AF0 /* migrations in Resources */ = {isa = PBXBuildFile; fileRef = 00C0C6BC22465F65003D8AF0 /* migrations */; };
00C0C6CA2246E543003D8AF0 /* main.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 00C0C6C92246E543003D8AF0 /* main.framework */; };
00C0C6CC2246E550003D8AF0 /* main.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 00C0C6C92246E543003D8AF0 /* main.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
00C0C6D122470705003D8AF0 /* IosCanvas.swift in Sources */ = {isa = PBXBuildFile; fileRef = 00C0C6D022470705003D8AF0 /* IosCanvas.swift */; };
00C0C6D92247DC13003D8AF0 /* IosCanvasTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 00C0C6D82247DC13003D8AF0 /* IosCanvasTest.swift */; };
00C0C6D122470705003D8AF0 /* ComponentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 00C0C6D022470705003D8AF0 /* ComponentView.swift */; };
00C0C6E0224A3602003D8AF0 /* DetailScreenController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 00C0C6DE224A35FC003D8AF0 /* DetailScreenController.swift */; };
00D48BD12200A31300CC4527 /* Launch.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 00D48BD02200A31300CC4527 /* Launch.storyboard */; };
00D48BD32200AC1600CC4527 /* EditHabitController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 00D48BD22200AC1600CC4527 /* EditHabitController.swift */; };
@ -62,8 +61,7 @@
00C0C6BB22465F65003D8AF0 /* databases */ = {isa = PBXFileReference; lastKnownFileType = folder; path = databases; sourceTree = "<group>"; };
00C0C6BC22465F65003D8AF0 /* migrations */ = {isa = PBXFileReference; lastKnownFileType = folder; path = migrations; sourceTree = "<group>"; };
00C0C6C92246E543003D8AF0 /* main.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = main.framework; path = ../core/build/bin/ios/mainDebugFramework/main.framework; sourceTree = "<group>"; };
00C0C6D022470705003D8AF0 /* IosCanvas.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = IosCanvas.swift; sourceTree = "<group>"; };
00C0C6D82247DC13003D8AF0 /* IosCanvasTest.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = IosCanvasTest.swift; sourceTree = "<group>"; };
00C0C6D022470705003D8AF0 /* ComponentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ComponentView.swift; sourceTree = "<group>"; };
00C0C6DE224A35FC003D8AF0 /* DetailScreenController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DetailScreenController.swift; sourceTree = "<group>"; };
00D48BD02200A31300CC4527 /* Launch.storyboard */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; path = Launch.storyboard; sourceTree = "<group>"; };
00D48BD22200AC1600CC4527 /* EditHabitController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EditHabitController.swift; sourceTree = "<group>"; };
@ -138,7 +136,6 @@
isa = PBXGroup;
children = (
00A5B43E22009F5A0024E00C /* Info.plist */,
00C0C6D722472BC9003D8AF0 /* Platform */,
);
path = Tests;
sourceTree = "<group>";
@ -165,15 +162,7 @@
00C0C6D622471BA3003D8AF0 /* Platform */ = {
isa = PBXGroup;
children = (
00C0C6D022470705003D8AF0 /* IosCanvas.swift */,
);
path = Platform;
sourceTree = "<group>";
};
00C0C6D722472BC9003D8AF0 /* Platform */ = {
isa = PBXGroup;
children = (
00C0C6D82247DC13003D8AF0 /* IosCanvasTest.swift */,
00C0C6D022470705003D8AF0 /* ComponentView.swift */,
);
path = Platform;
sourceTree = "<group>";
@ -304,7 +293,7 @@
isa = PBXSourcesBuildPhase;
buildActionMask = 2147483647;
files = (
00C0C6D122470705003D8AF0 /* IosCanvas.swift in Sources */,
00C0C6D122470705003D8AF0 /* ComponentView.swift in Sources */,
00C0C6E0224A3602003D8AF0 /* DetailScreenController.swift in Sources */,
00A5B42A22009F590024E00C /* MainScreenController.swift in Sources */,
00A5B42822009F590024E00C /* AppDelegate.swift in Sources */,
@ -317,7 +306,6 @@
isa = PBXSourcesBuildPhase;
buildActionMask = 2147483647;
files = (
00C0C6D92247DC13003D8AF0 /* IosCanvasTest.swift in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};

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