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FMX.Graphics.NativeCanvas.pas
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FMX.Graphics.NativeCanvas.pas
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// ***************************************************************************
//
// Firemonkey Native Canvas Class
//
// Copyright 2017 Aone (amtbonechen@gmail.com), 谢顿 (zhaoyipeng@hotmail.com)
//
// This unit is based on Aone's FMX.Graphics.Native.pas, 谢顿 changed it
// to INativeCanvas, the original version information is below
//
// ***************************************************************************
{ ------------------------------------------ }
{ }
{ (c) 2017 by Aone }
{ }
{ QQ: 1467948783 }
{ }
{ http://www.cnblogs.com/onechen }
{ }
{ ------------------------------------------ }
{ Start: 2017.01.16 }
{ ------------------------------------------ }
// [原创] 改善 Firemonkey Canvas 几何绘图质量问题（移动平台）by Aone
// The basic usage of this unit:
// write these code in you paint method
// var
// Canvas: INativeCanvas;
// begin
// Canvas := Self.Canvas.ToNativeCanvas(TDrawMethod.Native);
//
// Canvas.NativeDraw(LocalRect, procedure begin
// Canvas....
// end);
unit FMX.Graphics.NativeCanvas;
interface
uses
System.Types,
System.UITypes,
System.UIConsts,
System.Math,
System.Math.Vectors,
System.Classes,
System.SysUtils,
System.Generics.Collections,
{$IFDEF ANDROID}
Androidapi.JNI.JavaTypes,
Androidapi.JNI.GraphicsContentViewText,
Androidapi.JNIBridge,
Androidapi.Helpers,
Androidapi.Bitmap,
Androidapi.JNI.App,
FMX.Surfaces,
FMX.Helpers.Android,
{$ENDIF}
{$IFDEF IOS}
iOSapi.CocoaTypes,
iOSapi.UIKit,
iOSapi.Foundation,
iOSapi.CoreText,
iOSapi.CoreGraphics,
Macapi.CoreFoundation,
Macapi.ObjectiveC,
Macapi.Helpers,
FMX.FontGlyphs.iOS,
FMX.Helpers.iOS,
{$ENDIF}
FMX.Types,
FMX.Graphics,
FMX.Platform,
FMX.Graphics.INativeCanvas;
type
{$IFDEF IOS64}
TDashArray = TArray<CGFloat>; // iOS 64 必需使用 Double 或 CGFloat 否則無法正常顯示虛線
{$ENDIF}
TFiremonkeyCanvas = class(TAbstractCanvas)
public
procedure NativeDraw(const ARect: TRectF; const ADrawProc: TDrawProc); override;
// 涂色 + 线色一次完成
procedure DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const ACornerType: TCornerType = TCornerType.Round; const Inside: Boolean = False); overload; override;
procedure DrawPath(const APath: TPathData; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush); overload; override;
procedure DrawEllipse(const ARect: TRectF; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const Inside: Boolean = False); overload; override;
procedure DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const Inside: Boolean = False); overload; override;
procedure DrawPolygon(const Points: TPolygon; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush); overload; override;
// 下列为 Canvas 原有函数
procedure DrawBitmap(const ABitmap: TBitmap; const SrcRect, DstRect: TRectF; const AOpacity: Single; const HighSpeed: Boolean = False); override;
procedure FillText(const ARect: TRectF; const AText: string; const WordWrap: Boolean; const AOpacity: Single; const Flags: TFillTextFlags; const ATextAlign: TTextAlign; const AVTextAlign: TTextAlign = TTextAlign.Center); override;
procedure SetMatrix(const M: TMatrix); override;
procedure DrawLine(const APt1, APt2: TPointF; const AOpacity: Single); overload; override;
procedure DrawLine(const APt1, APt2: TPointF; const AOpacity: Single; const ABrush: TStrokeBrush); overload; override;
procedure FillRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ACornerType: TCornerType = TCornerType.Round); overload; override;
procedure FillRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ABrush: TBrush; const ACornerType: TCornerType = TCornerType.Round); overload; override;
procedure DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ACornerType: TCornerType = TCornerType.Round); overload; override;
procedure DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ABrush: TStrokeBrush; const ACornerType: TCornerType = TCornerType.Round); overload; override;
procedure FillPath(const APath: TPathData; const AOpacity: Single); overload; override;
procedure FillPath(const APath: TPathData; const AOpacity: Single; const ABrush: TBrush); overload; override;
procedure DrawPath(const APath: TPathData; const AOpacity: Single); overload; override;
procedure DrawPath(const APath: TPathData; const AOpacity: Single; const ABrush: TStrokeBrush); overload; override;
procedure FillEllipse(const ARect: TRectF; const AOpacity: Single); overload; override;
procedure FillEllipse(const ARect: TRectF; const AOpacity: Single; const ABrush: TBrush); overload; override;
procedure DrawEllipse(const ARect: TRectF; const AOpacity: Single); overload; override;
procedure DrawEllipse(const ARect: TRectF; const AOpacity: Single; const ABrush: TStrokeBrush); overload; override;
procedure FillArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single); overload; override;
procedure FillArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const ABrush: TBrush); overload; override;
procedure DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single); overload; override;
procedure DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const ABrush: TStrokeBrush); overload; override;
procedure FillPolygon(const Points: TPolygon; const AOpacity: Single); override;
procedure DrawPolygon(const Points: TPolygon; const AOpacity: Single); overload; override;
procedure IntersectClipRect(const ARect: TRectF); override;
procedure ExcludeClipRect(const ARect: TRectF); override;
end;
{$IF Defined(ANDROID) or Defined(IOS)}
TCustomNativeCanvas = class(TAbstractCanvas)
private
class var FModulateColor: TAlphaColor;
public
// 涂色 + 线色一次完成
procedure DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const ACornerType: TCornerType = TCornerType.Round; const Inside: Boolean = False); overload; override;
procedure DrawEllipse(const ARect: TRectF; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const Inside: Boolean = False); overload; override;
procedure DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const Inside: Boolean = False); overload; override;
procedure DrawPolygon(const Points: TPolygon; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush); overload; override;
// 下列为 Canvas 原有函数
procedure FillText(const ARect: TRectF; const AText: string; const WordWrap: Boolean; const AOpacity: Single; const Flags: TFillTextFlags; const ATextAlign: TTextAlign; const AVTextAlign: TTextAlign = TTextAlign.Center); override;
procedure DrawLine(const APt1, APt2: TPointF; const AOpacity: Single); overload; override;
procedure FillRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ACornerType: TCornerType = TCornerType.Round); overload; override;
procedure FillRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ABrush: TBrush; const ACornerType: TCornerType = TCornerType.Round); overload; override;
procedure DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ACornerType: TCornerType = TCornerType.Round); overload; override;
procedure DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ABrush: TStrokeBrush; const ACornerType: TCornerType = TCornerType.Round); overload; override;
procedure FillPath(const APath: TPathData; const AOpacity: Single); overload; override;
procedure FillPath(const APath: TPathData; const AOpacity: Single; const ABrush: TBrush); overload; override;
procedure DrawPath(const APath: TPathData; const AOpacity: Single); overload; override;
procedure DrawPath(const APath: TPathData; const AOpacity: Single; const ABrush: TStrokeBrush); overload; override;
procedure FillEllipse(const ARect: TRectF; const AOpacity: Single); overload; override;
procedure FillEllipse(const ARect: TRectF; const AOpacity: Single; const ABrush: TBrush); overload; override;
procedure DrawEllipse(const ARect: TRectF; const AOpacity: Single); overload; override;
procedure DrawEllipse(const ARect: TRectF; const AOpacity: Single; const ABrush: TStrokeBrush); overload; override;
procedure FillArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single); overload; override;
procedure FillArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const ABrush: TBrush); overload; override;
procedure DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single); overload; override;
procedure DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const ABrush: TStrokeBrush); overload; override;
procedure FillPolygon(const Points: TPolygon; const AOpacity: Single); override;
procedure DrawPolygon(const Points: TPolygon; const AOpacity: Single); overload; override;
class property ModulateColor: TAlphaColor read FModulateColor write FModulateColor;
end;
{$ENDIF}
{$IFDEF ANDROID}
TAndroidNativeCanvas = class(TCustomNativeCanvas)
private
GlobalCanvas: JCanvas;
procedure ApplyGradient(const Paint1: JPaint; const ABrush: TBrush; const ARect: TRectF);
procedure ApplyFill(const Paint1: JPaint; const ABrush: TBrush; const ARect: TRectF; const AOpacity: Single);
procedure DrawFill(const Paint1: JPaint; const ABrush: TBrush; const SrcRect, DesRect: TRectF; const AOpacity: Single);
procedure ApplyStroke(const Paint1: JPaint; const AStroke: TStrokeBrush; const ARect: TRectF; const AOpacity: Single);
public
procedure NativeDraw(const ARect: TRectF; const ADrawProc: TDrawProc); override;
procedure DrawBitmap(const ABitmap: TBitmap; const SrcRect, DstRect: TRectF; const AOpacity: Single; const HighSpeed: Boolean = False); override;
procedure DrawPath(const APath: TPathData; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush); override;
// 下列为 Canvas 原有函数
procedure FillText(const ARect: TRectF; const AText: string; const WordWrap: Boolean; const AOpacity: Single; const Flags: TFillTextFlags; const ATextAlign: TTextAlign; const AVTextAlign: TTextAlign = TTextAlign.Center); override;
procedure DrawLine(const APt1, APt2: TPointF; const AOpacity: Single; const ABrush: TStrokeBrush); overload; override;
procedure IntersectClipRect(const ARect: TRectF); override;
procedure ExcludeClipRect(const ARect: TRectF); override;
end;
{$ENDIF}
{$IFDEF IOS}
TIOSNativeCanvas = class(TCustomNativeCanvas)
private
GlobalCanvas: CGContextRef;
procedure ApplyGradient(const ABrush: TBrush; const ARect: TRectF);
procedure ApplyFill(const ABrush: TBrush; const ARect: TRectF; const AOpacity: Single);
procedure DrawFill(const ABrush: TBrush; const SrcRect, DesRect: TRectF; const AOpacity: Single);
procedure ApplyStroke(const AStroke: TStrokeBrush; const ARect: TRectF; const AOpacity: Single);
function GetPostScriptFontName: CFStringRef;
public
constructor Create(ACanvas: TCanvas); override;
procedure NativeDraw(const ARect: TRectF; const ADrawProc: TDrawProc); override;
procedure DrawBitmap(const ABitmap: TBitmap; const SrcRect, DstRect: TRectF; const AOpacity: Single; const HighSpeed: Boolean = False); override;
procedure SetMatrix(const M: TMatrix); override;
procedure DrawPath(const APath: TPathData; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush); override;
// 下列为 Canvas 原有函数
procedure FillText(const ARect: TRectF; const AText: string; const WordWrap: Boolean; const AOpacity: Single; const Flags: TFillTextFlags; const ATextAlign: TTextAlign; const AVTextAlign: TTextAlign = TTextAlign.Center); override;
procedure DrawLine(const APt1, APt2: TPointF; const AOpacity: Single; const ABrush: TStrokeBrush); overload; override;
procedure IntersectClipRect(const ARect: TRectF); override;
procedure ExcludeClipRect(const ARect: TRectF); override;
end;
{$ENDIF}
TCanvasHelper = class helper for TCanvas
public
function ToNativeCanvas(AMethod: TDrawMethod): INativeCanvas;
end;
implementation
type
TMyCanvas = class(TCanvas)
end;
{$IFDEF IOS}
NSStringClass = interface(NSObjectClass)
['{B324D490-B58F-4BE8-A5F4-7DAD2E142A5E}']
{class} function availableStringEncodings: PNSStringEncoding; cdecl;
{class} function defaultCStringEncoding: NSStringEncoding; cdecl;
{class} function localizedNameOfStringEncoding(encoding: NSStringEncoding): Pointer; cdecl;
{class} function localizedStringWithFormat(localizedStringWithFormat: NSString): Pointer; cdecl;
{class} function pathWithComponents(components: NSArray): Pointer; cdecl;
{class} function stringWithCString(bytes: MarshaledAString): Pointer; cdecl; overload;
{class} function stringWithCString(cString: MarshaledAString; encoding: NSStringEncoding): Pointer; cdecl; overload;
// {class} function stringWithCString(bytes: MarshaledAString; length: NSUInteger): Pointer; cdecl; overload;
{class} function stringWithCharacters(characters: MarshaledString; length: NSUInteger): Pointer; cdecl;
{class} function stringWithContentsOfFile(path: NSString): Pointer; cdecl; overload;
{class} function stringWithContentsOfFile(path: NSString; encoding: NSStringEncoding; error: PPointer): Pointer; cdecl; overload;
{class} function stringWithContentsOfFile(path: NSString; usedEncoding: PNSStringEncoding; error: PPointer): Pointer; cdecl; overload;
{class} function stringWithContentsOfURL(url: NSURL): Pointer; cdecl; overload;
{class} function stringWithContentsOfURL(url: NSURL; encoding: NSStringEncoding; error: PPointer): Pointer; cdecl; overload;
{class} function stringWithContentsOfURL(url: NSURL; usedEncoding: PNSStringEncoding; error: PPointer): Pointer; cdecl; overload;
{class} function stringWithFormat(stringWithFormat: NSString): Pointer; cdecl;
{class} function stringWithString(string_: NSString): Pointer; cdecl;
{class} function stringWithUTF8String(nullTerminatedCString: MarshaledAString): Pointer; cdecl;
end;
NSString = interface(NSObject)
['{A62E83E4-AEB3-405F-8AFA-5B873D6E057F}']
function UTF8String: MarshaledAString; cdecl;
function boolValue: Boolean; cdecl;
function cString: MarshaledAString; cdecl;
function cStringLength: NSUInteger; cdecl;
function cStringUsingEncoding(encoding: NSStringEncoding): MarshaledAString; cdecl;
function canBeConvertedToEncoding(encoding: NSStringEncoding): Boolean; cdecl;
function capitalizedString: NSString; cdecl;
function caseInsensitiveCompare(string_: NSString): NSComparisonResult; cdecl;
function characterAtIndex(index: NSUInteger): unichar; cdecl;
function commonPrefixWithString(aString: NSString; options: NSStringCompareOptions): NSString; cdecl;
function compare(string_: NSString): NSComparisonResult; cdecl; overload;
function compare(string_: NSString; options: NSStringCompareOptions): NSComparisonResult; cdecl; overload;
function compare(string_: NSString; options: NSStringCompareOptions; range: NSRange): NSComparisonResult; cdecl; overload;
function compare(string_: NSString; options: NSStringCompareOptions; range: NSRange; locale: Pointer): NSComparisonResult; cdecl; overload;
function completePathIntoString(outputName: NSString; caseSensitive: Boolean; matchesIntoArray: NSArray; filterTypes: NSArray): NSUInteger; cdecl;
function componentsSeparatedByCharactersInSet(separator: NSCharacterSet): NSArray; cdecl;
function componentsSeparatedByString(separator: NSString): NSArray; cdecl;
function dataUsingEncoding(encoding: NSStringEncoding): NSData; cdecl; overload;
function dataUsingEncoding(encoding: NSStringEncoding; allowLossyConversion: Boolean): NSData; cdecl; overload;
function decomposedStringWithCanonicalMapping: NSString; cdecl;
function decomposedStringWithCompatibilityMapping: NSString; cdecl;
function description: NSString; cdecl;
function doubleValue: double; cdecl;
function fastestEncoding: NSStringEncoding; cdecl;
function fileSystemRepresentation: MarshaledAString; cdecl;
function floatValue: Single; cdecl;
function getBytes(buffer: Pointer; maxLength: NSUInteger; usedLength: NSUInteger; encoding: NSStringEncoding; options: NSStringEncodingConversionOptions; range: NSRange; remainingRange: PNSRange): Boolean; cdecl;
procedure getCString(bytes: MarshaledAString); cdecl; overload;
procedure getCString(bytes: MarshaledAString; maxLength: NSUInteger); cdecl; overload;
function getCString(buffer: MarshaledAString; maxLength: NSUInteger; encoding: NSStringEncoding): Boolean; cdecl; overload;
procedure getCString(bytes: MarshaledAString; maxLength: NSUInteger; range: NSRange; remainingRange: PNSRange); cdecl; overload;
procedure getCharacters(buffer: MarshaledString); cdecl; overload;
procedure getCharacters(buffer: MarshaledString; range: NSRange); cdecl; overload;
function getFileSystemRepresentation(cname: MarshaledAString; maxLength: NSUInteger): Boolean; cdecl;
function hasPrefix(aString: NSString): Boolean; cdecl;
function hasSuffix(aString: NSString): Boolean; cdecl;
function hash: NSUInteger; cdecl;
function init: Pointer; cdecl;
function initWithBytes(bytes: Pointer; length: NSUInteger; encoding: NSStringEncoding): Pointer; cdecl;
function initWithBytesNoCopy(bytes: Pointer; length: NSUInteger; encoding: NSStringEncoding; freeWhenDone: Boolean): Pointer; cdecl;
function initWithCString(bytes: MarshaledAString): Pointer; cdecl; overload;
function initWithCString(nullTerminatedCString: MarshaledAString; encoding: NSStringEncoding): Pointer; cdecl; overload;
// function initWithCString(bytes: PAnsiChar; length: NSUInteger): Pointer; cdecl; overload;
function initWithCStringNoCopy(bytes: MarshaledAString; length: NSUInteger; freeWhenDone: Boolean): Pointer; cdecl;
function initWithCharacters(characters: MarshaledString; length: NSUInteger): Pointer; cdecl;
function initWithCharactersNoCopy(characters: MarshaledString; length: NSUInteger; freeWhenDone: Boolean): Pointer; cdecl;
function initWithContentsOfFile(path: NSString): Pointer; cdecl; overload;
function initWithContentsOfFile(path: NSString; encoding: NSStringEncoding; error: PPointer): Pointer; cdecl; overload;
function initWithContentsOfFile(path: NSString; usedEncoding: PNSStringEncoding; error: PPointer): Pointer; cdecl; overload;
function initWithContentsOfURL(url: NSURL): Pointer; cdecl; overload;
function initWithContentsOfURL(url: NSURL; encoding: NSStringEncoding; error: PPointer): Pointer; cdecl; overload;
function initWithContentsOfURL(url: NSURL; usedEncoding: PNSStringEncoding; error: PPointer): Pointer; cdecl; overload;
function initWithData(data: NSData; encoding: NSStringEncoding): Pointer; cdecl;
function initWithFormat(initWithFormat: NSString): Pointer; cdecl; overload;
function initWithFormat(format: NSString; locale: Pointer): Pointer; cdecl; overload;
function initWithString(aString: NSString): Pointer; cdecl;
function initWithUTF8String(nullTerminatedCString: MarshaledAString): Pointer; cdecl;
function intValue: Integer; cdecl;
function integerValue: NSInteger; cdecl;
function isAbsolutePath: Boolean; cdecl;
function isEqualToString(aString: NSString): Boolean; cdecl;
function lastPathComponent: NSString; cdecl;
function length: NSUInteger; cdecl;
function lengthOfBytesUsingEncoding(enc: NSStringEncoding): NSUInteger; cdecl;
function lineRangeForRange(range: NSRange): NSRange; cdecl;
function localizedCaseInsensitiveCompare(string_: NSString): NSComparisonResult; cdecl;
function localizedCompare(string_: NSString): NSComparisonResult; cdecl;
function localizedStandardCompare(string_: NSString): NSComparisonResult; cdecl;
function longLongValue: Int64; cdecl;
function lossyCString: MarshaledAString; cdecl;
function lowercaseString: NSString; cdecl;
function maximumLengthOfBytesUsingEncoding(enc: NSStringEncoding): NSUInteger; cdecl;
function paragraphRangeForRange(range: NSRange): NSRange; cdecl;
function pathComponents: NSArray; cdecl;
function pathExtension: NSString; cdecl;
function precomposedStringWithCanonicalMapping: NSString; cdecl;
function precomposedStringWithCompatibilityMapping: NSString; cdecl;
function propertyList: Pointer; cdecl;
function propertyListFromStringsFileFormat: NSDictionary; cdecl;
function rangeOfCharacterFromSet(aSet: NSCharacterSet): NSRange; cdecl; overload;
function rangeOfCharacterFromSet(aSet: NSCharacterSet; options: NSStringCompareOptions): NSRange; cdecl; overload;
function rangeOfCharacterFromSet(aSet: NSCharacterSet; options: NSStringCompareOptions; range: NSRange): NSRange; cdecl; overload;
function rangeOfComposedCharacterSequenceAtIndex(index: NSUInteger): NSRange; cdecl;
function rangeOfComposedCharacterSequencesForRange(range: NSRange): NSRange; cdecl;
function rangeOfString(aString: NSString): NSRange; cdecl; overload;
function rangeOfString(aString: NSString; options: NSStringCompareOptions): NSRange; cdecl; overload;
function rangeOfString(aString: NSString; options: NSStringCompareOptions; range: NSRange): NSRange; cdecl; overload;
function rangeOfString(aString: NSString; options: NSStringCompareOptions; range: NSRange; locale: NSLocale): NSRange; cdecl; overload;
function smallestEncoding: NSStringEncoding; cdecl;
function stringByAbbreviatingWithTildeInPath: NSString; cdecl;
function stringByAddingPercentEscapesUsingEncoding(enc: NSStringEncoding): NSString; cdecl;
function stringByAppendingFormat(stringByAppendingFormat: NSString): NSString; cdecl;
function stringByAppendingPathComponent(str: NSString): NSString; cdecl;
function stringByAppendingPathExtension(str: NSString): NSString; cdecl;
function stringByAppendingString(aString: NSString): NSString; cdecl;
function stringByDeletingLastPathComponent: NSString; cdecl;
function stringByDeletingPathExtension: NSString; cdecl;
function stringByExpandingTildeInPath: NSString; cdecl;
function stringByFoldingWithOptions(options: NSStringCompareOptions; locale: NSLocale): NSString; cdecl;
function stringByPaddingToLength(newLength: NSUInteger; withString: NSString; startingAtIndex: NSUInteger): NSString; cdecl;
function stringByReplacingCharactersInRange(range: NSRange; withString: NSString): NSString; cdecl;
function stringByReplacingOccurrencesOfString(target: NSString; withString: NSString): NSString; cdecl; overload;
function stringByReplacingOccurrencesOfString(target: NSString; withString: NSString; options: NSStringCompareOptions; range: NSRange): NSString; cdecl; overload;
function stringByReplacingPercentEscapesUsingEncoding(enc: NSStringEncoding): NSString; cdecl;
function stringByResolvingSymlinksInPath: NSString; cdecl;
function stringByStandardizingPath: NSString; cdecl;
function stringByTrimmingCharactersInSet(set_: NSCharacterSet): NSString; cdecl;
function stringsByAppendingPaths(paths: NSArray): NSArray; cdecl;
function substringFromIndex(from: NSUInteger): NSString; cdecl;
function substringToIndex(to_: NSUInteger): NSString; cdecl;
function substringWithRange(range: NSRange): NSString; cdecl;
function uppercaseString: NSString; cdecl;
function writeToFile(path: NSString; atomically: Boolean): Boolean; cdecl; overload;
function writeToFile(path: NSString; atomically: Boolean; encoding: NSStringEncoding; error: PPointer): Boolean; cdecl; overload;
function writeToURL(url: NSURL; atomically: Boolean): Boolean; cdecl; overload;
function writeToURL(url: NSURL; atomically: Boolean; encoding: NSStringEncoding; error: PPointer): Boolean; cdecl; overload;
procedure drawInRect(aRect: NSRect; withAttributes: NSDictionary); cdecl;
procedure drawAtPoint(aPoint: NSPoint; withAttributes: NSDictionary); cdecl;
function sizeWithAttributes(attributes: NSDictionary): NSSize; cdecl;
function boundingRectWithSize(size: NSSize; options: NSStringDrawingOptions; attributes: NSDictionary): NSRect; cdecl;
end;
TNSString = class(TOCGenericImport<NSStringClass, NSString>) end;
UIFontClass = interface(NSObjectClass)
['{F21CAA74-9F23-42C5-A0F3-CECA57AFB3BC}']
{class} function boldSystemFontOfSize(fontSize: CGFloat): Pointer; cdecl;
{class} function buttonFontSize: CGFloat; cdecl;
{class} function familyNames: NSArray; cdecl;
{class} function fontNamesForFamilyName(familyName: NSString): NSArray; cdecl;
{class} function fontWithName(fontName: NSString; size: CGFloat): Pointer; cdecl;
{class} function italicSystemFontOfSize(fontSize: CGFloat): Pointer; cdecl;
{class} function labelFontSize: CGFloat; cdecl;
{class} function smallSystemFontSize: CGFloat; cdecl;
{class} function systemFontOfSize(fontSize: CGFloat): Pointer; cdecl;
{class} function systemFontSize: CGFloat; cdecl;
{class} function fontWithDescriptor(descriptor: UIFontDescriptor; size: CGFloat): Pointer; cdecl;
end;
UIFont = interface(NSObject)
['{026495EC-177F-4517-9B25-C2F2371A110D}']
function ascender: CGFloat; cdecl;
function capHeight: CGFloat; cdecl;
function descender: CGFloat; cdecl;
function familyName: NSString; cdecl;
function fontName: NSString; cdecl;
function fontWithSize(fontSize: CGFloat): UIFont; cdecl;
function leading: CGFloat; cdecl;
function lineHeight: CGFloat; cdecl;
function pointSize: CGFloat; cdecl;
function xHeight: CGFloat; cdecl;
function fontDescriptor: UIFontDescriptor; cdecl;
end;
TUIFont = class(TOCGenericImport<UIFontClass, UIFont>) end;
{$ENDIF}
{ TFiremonkeyCanvas }
procedure TFiremonkeyCanvas.DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const Inside: Boolean);
var
R: TRectF;
P: TPointF;
begin
R := RectF(Center.X - Radius.X, Center.Y - Radius.Y, Center.X + Radius.X, Center.Y + Radius.Y);
// 线在区内
if Inside and (AStroke <> nil) and (AStroke.Kind <> TBrushKind.None) then
begin
R.Offset(-R.Left, -R.Top);
InflateRect(R, -(AStroke.Thickness / 2), -(AStroke.Thickness / 2));
end;
P := PointF(R.Width / 2, R.Height / 2);
FCanvas.FillArc(Center, P, StartAngle, SweepAngle, AOpacity, AFill);
FCanvas.DrawArc(Center, P, StartAngle, SweepAngle, AOpacity, AStroke);
end;
procedure TFiremonkeyCanvas.DrawEllipse(const ARect: TRectF; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const Inside: Boolean);
var
R: TRectF;
begin
R := ARect;
// 线在区内
if Inside and (AStroke <> nil) and (AStroke.Kind <> TBrushKind.None) then
InflateRect(R, -(AStroke.Thickness / 2), -(AStroke.Thickness / 2));
FCanvas.FillEllipse(R, AOpacity, AFill);
FCanvas.DrawEllipse(R, AOpacity, AStroke);
end;
procedure TFiremonkeyCanvas.DrawLine(const APt1, APt2: TPointF; const AOpacity: Single);
begin
FCanvas.DrawLine(APt1, APt2, AOpacity);
end;
procedure TFiremonkeyCanvas.DrawLine(const APt1, APt2: TPointF; const AOpacity: Single; const ABrush: TStrokeBrush);
begin
FCanvas.DrawLine(APt1, APt2, AOpacity, ABrush);
end;
procedure TFiremonkeyCanvas.DrawPath(const APath: TPathData; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush);
begin
FCanvas.FillPath(APath, AOpacity, AFill);
FCanvas.DrawPath(APath, AOpacity, AStroke);
end;
procedure TFiremonkeyCanvas.DrawPath(const APath: TPathData; const AOpacity: Single; const ABrush: TStrokeBrush);
begin
FCanvas.DrawPath(APath, AOpacity, ABrush);
end;
procedure TFiremonkeyCanvas.DrawPolygon(const Points: TPolygon; const AOpacity: Single);
begin
FCanvas.DrawPolygon(Points, AOpacity);
end;
procedure TFiremonkeyCanvas.DrawPath(const APath: TPathData; const AOpacity: Single);
begin
FCanvas.DrawPath(APath, AOpacity);
end;
procedure TFiremonkeyCanvas.DrawPolygon(const Points: TPolygon; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush);
begin
if AFill <> nil then
FCanvas.Fill.Assign(AFill);
if AStroke <> nil then
FCanvas.Stroke.Assign(AStroke);
FCanvas.FillPolygon(Points, AOpacity);
FCanvas.DrawPolygon(Points, AOpacity);
end;
procedure TFiremonkeyCanvas.DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ABrush: TStrokeBrush; const ACornerType: TCornerType);
begin
FCanvas.DrawRect(ARect, XRadius, YRadius, ACorners, AOpacity, ABrush, ACornerType);
end;
procedure TFiremonkeyCanvas.ExcludeClipRect(const ARect: TRectF);
begin
FCanvas.ExcludeClipRect(ARect);
end;
procedure TFiremonkeyCanvas.DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ACornerType: TCornerType);
begin
FCanvas.DrawRect(ARect, XRadius, YRadius, ACorners, AOpacity, ACornerType);
end;
procedure TFiremonkeyCanvas.DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const ACornerType: TCornerType; const Inside: Boolean);
var
R: TRectF;
begin
R := ARect;
// 线在区内
if Inside and (AStroke <> nil) and (AStroke.Kind <> TBrushKind.None) then
InflateRect(R, -(AStroke.Thickness / 2), -(AStroke.Thickness / 2));
FCanvas.FillRect(R, XRadius, YRadius, ACorners, AOpacity, AFill, ACornerType);
FCanvas.DrawRect(R, XRadius, YRadius, ACorners, AOpacity, AStroke, ACornerType);
end;
procedure TFiremonkeyCanvas.FillPath(const APath: TPathData; const AOpacity: Single);
begin
FCanvas.FillPath(APath, AOpacity);
end;
procedure TFiremonkeyCanvas.FillArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const ABrush: TBrush);
begin
FCanvas.FillArc(Center, Radius, StartAngle, SweepAngle, AOpacity, ABrush);
end;
procedure TFiremonkeyCanvas.FillArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single);
begin
FCanvas.FillArc(Center, Radius, StartAngle, SweepAngle, AOpacity);
end;
procedure TFiremonkeyCanvas.FillEllipse(const ARect: TRectF; const AOpacity: Single; const ABrush: TBrush);
begin
FCanvas.FillEllipse(ARect, AOpacity, ABrush);
end;
procedure TFiremonkeyCanvas.FillEllipse(const ARect: TRectF; const AOpacity: Single);
begin
FCanvas.FillEllipse(ARect, AOpacity);
end;
procedure TFiremonkeyCanvas.FillPath(const APath: TPathData; const AOpacity: Single; const ABrush: TBrush);
begin
FCanvas.FillPath(APath, AOpacity, ABrush);
end;
procedure TFiremonkeyCanvas.FillPolygon(const Points: TPolygon; const AOpacity: Single);
begin
FCanvas.FillPolygon(Points, AOpacity);
end;
procedure TFiremonkeyCanvas.FillRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ABrush: TBrush; const ACornerType: TCornerType);
begin
FCanvas.FillRect(ARect, XRadius, YRadius, ACorners, AOpacity, ABrush, ACornerType);
end;
procedure TFiremonkeyCanvas.FillText(const ARect: TRectF; const AText: string;
const WordWrap: Boolean; const AOpacity: Single; const Flags: TFillTextFlags;
const ATextAlign, AVTextAlign: TTextAlign);
begin
FCanvas.FillText(ARect, AText, WordWrap, AOpacity, Flags, ATextAlign, AVTextAlign);
end;
procedure TFiremonkeyCanvas.IntersectClipRect(const ARect: TRectF);
begin
FCanvas.IntersectClipRect(ARect);
end;
procedure TFiremonkeyCanvas.FillRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ACornerType: TCornerType);
begin
FCanvas.FillRect(ARect, XRadius, YRadius, ACorners, AOpacity, ACornerType);
end;
procedure TFiremonkeyCanvas.NativeDraw(const ARect: TRectF; const ADrawProc: TDrawProc);
begin
// 绘图函数
if Assigned(ADrawProc) then
ADrawProc;
end;
procedure TFiremonkeyCanvas.DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single);
begin
FCanvas.DrawArc(Center, Radius, StartAngle, SweepAngle, AOpacity);
end;
procedure TFiremonkeyCanvas.DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const ABrush: TStrokeBrush);
begin
FCanvas.DrawArc(Center, Radius, StartAngle, SweepAngle, AOpacity, ABrush);
end;
procedure TFiremonkeyCanvas.DrawBitmap(const ABitmap: TBitmap; const SrcRect, DstRect: TRectF; const AOpacity: Single; const HighSpeed: Boolean);
begin
FCanvas.DrawBitmap(ABitmap, SrcRect, DstRect, AOpacity, HighSpeed);
end;
procedure TFiremonkeyCanvas.SetMatrix(const M: TMatrix);
begin
FCanvas.SetMatrix(M);
end;
procedure TFiremonkeyCanvas.DrawEllipse(const ARect: TRectF; const AOpacity: Single);
begin
FCanvas.DrawEllipse(ARect, AOpacity);
end;
procedure TFiremonkeyCanvas.DrawEllipse(const ARect: TRectF; const AOpacity: Single; const ABrush: TStrokeBrush);
begin
FCanvas.FillEllipse(ARect, AOpacity, ABrush);
end;
{ TCanvasHelper }
function TCanvasHelper.ToNativeCanvas(AMethod: TDrawMethod): INativeCanvas;
begin
case AMethod of
Native:
{$IF DEFINED(ANDROID) OR DEFINED(IOS)}
{$IFDEF ANDROID}
Result := TAndroidNativeCanvas.Create(Self);
{$ELSE}
Result := TIOSNativeCanvas.Create(Self);
{$ENDIF}
{$ELSE}
Result := TFiremonkeyCanvas.Create(Self);
{$ENDIF}
Firemonkey:
Result := TFiremonkeyCanvas.Create(Self);
end;
end;
{$IF Defined(ANDROID) or Defined(IOS)}
{ TCustomNativeCanvas }
procedure TCustomNativeCanvas.FillText(const ARect: TRectF; const AText: string; const WordWrap: Boolean; const AOpacity: Single; const Flags: TFillTextFlags; const ATextAlign: TTextAlign; const AVTextAlign: TTextAlign = TTextAlign.Center);
begin
end;
procedure TCustomNativeCanvas.DrawLine(const APt1, APt2: TPointF; const AOpacity: Single);
begin
DrawLine(APt1, APt2, AOpacity, FCanvas.Stroke);
end;
procedure TCustomNativeCanvas.DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const ACornerType: TCornerType; const Inside: Boolean);
var
Path: TPathData;
R: TRectF;
begin
R := ARect;
// 线在区内
if Inside and (AStroke <> nil) and (AStroke.Kind <> TBrushKind.None) then
InflateRect(R, -(AStroke.Thickness / 2), -(AStroke.Thickness / 2));
Path := TPathData.Create;
try
Path.AddRectangle(R, XRadius, YRadius, ACorners, ACornerType);
DrawPath(Path, AOpacity, AFill, AStroke);
finally
Path.Free;
end;
end;
procedure TCustomNativeCanvas.DrawEllipse(const ARect: TRectF; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const Inside: Boolean = False);
var
Path: TPathData;
R: TRectF;
begin
R := ARect;
// 线在区内
if Inside and (AStroke <> nil) and (AStroke.Kind <> TBrushKind.None) then
begin
R.Offset(-R.Left, -R.Top);
InflateRect(R, -(AStroke.Thickness / 2), -(AStroke.Thickness / 2));
end;
Path := TPathData.Create;
try
Path.AddEllipse(R);
DrawPath(Path, AOpacity, AFill, AStroke);
finally
Path.Free;
end;
end;
procedure TCustomNativeCanvas.DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush; const Inside: Boolean = False);
var
R: TRectF;
P: TPointF;
Path: TPathData;
begin
R := RectF(Center.X - Radius.X, Center.Y - Radius.Y, Center.X + Radius.X, Center.Y + Radius.Y);
// 线在区内
if Inside and (AStroke <> nil) and (AStroke.Kind <> TBrushKind.None) then
begin
R.Offset(-R.Left, -R.Top);
InflateRect(R, -(AStroke.Thickness / 2), -(AStroke.Thickness / 2));
end;
P := PointF(R.Width / 2, R.Height / 2);
Path := TPathData.Create;
try
Path.AddArc(Center, P, StartAngle, SweepAngle);
DrawPath(Path, AOpacity, AFill, AStroke);
finally
Path.Free;
end;
end;
procedure TCustomNativeCanvas.DrawPolygon(const Points: TPolygon; const AOpacity: Single; const AFill: TBrush; const AStroke: TStrokeBrush);
var
i: Integer;
Path: TPathData;
PathBreakFound: Boolean;
begin
Path := TPathData.Create;
try
PathBreakFound := False;
for i := 0 to High(Points) do
begin
if i = 0 then
begin
Path.MoveTo(Points[i]);
end
else if (Points[i].X = PolygonPointBreak.X) and (Points[i].Y = PolygonPointBreak.Y) then
begin
Path.ClosePath;
PathBreakFound := True;
end
else
Path.LineTo(Points[i]);
end;
if not PathBreakFound then
Path.ClosePath;
DrawPath(Path, AOpacity, AFill, AStroke);
finally
Path.Free;
end;
end;
procedure TCustomNativeCanvas.DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ACornerType: TCornerType = TCornerType.Round);
begin
DrawRect(ARect, XRadius, YRadius, ACorners, AOpacity, nil, FCanvas.Stroke, ACornerType);
end;
procedure TCustomNativeCanvas.DrawRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ABrush: TStrokeBrush; const ACornerType: TCornerType = TCornerType.Round);
begin
DrawRect(ARect, XRadius, YRadius, ACorners, AOpacity, nil, ABrush, ACornerType);
end;
procedure TCustomNativeCanvas.FillRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ACornerType: TCornerType = TCornerType.Round);
begin
DrawRect(ARect, XRadius, YRadius, ACorners, AOpacity, FCanvas.Fill, nil, ACornerType);
end;
procedure TCustomNativeCanvas.FillRect(const ARect: TRectF; const XRadius, YRadius: Single; const ACorners: TCorners; const AOpacity: Single; const ABrush: TBrush; const ACornerType: TCornerType = TCornerType.Round);
begin
DrawRect(ARect, XRadius, YRadius, ACorners, AOpacity, ABrush, nil, ACornerType);
end;
procedure TCustomNativeCanvas.DrawPath(const APath: TPathData; const AOpacity: Single; const ABrush: TStrokeBrush);
begin
DrawPath(APath, AOpacity, nil, ABrush);
end;
procedure TCustomNativeCanvas.DrawPath(const APath: TPathData; const AOpacity: Single);
begin
DrawPath(APath, AOpacity, nil, FCanvas.Stroke);
end;
procedure TCustomNativeCanvas.FillPath(const APath: TPathData; const AOpacity: Single);
begin
DrawPath(APath, AOpacity, FCanvas.Fill, nil);
end;
procedure TCustomNativeCanvas.FillPath(const APath: TPathData; const AOpacity: Single; const ABrush: TBrush);
begin
DrawPath(APath, AOpacity, ABrush, nil);
end;
procedure TCustomNativeCanvas.FillEllipse(const ARect: TRectF; const AOpacity: Single);
begin
DrawEllipse(ARect, AOpacity, FCanvas.Fill, nil);
end;
procedure TCustomNativeCanvas.FillEllipse(const ARect: TRectF; const AOpacity: Single; const ABrush: TBrush);
begin
DrawEllipse(ARect, AOpacity, ABrush, nil);
end;
procedure TCustomNativeCanvas.DrawEllipse(const ARect: TRectF; const AOpacity: Single);
begin
DrawEllipse(ARect, AOpacity, nil, FCanvas.Stroke);
end;
procedure TCustomNativeCanvas.DrawEllipse(const ARect: TRectF; const AOpacity: Single; const ABrush: TStrokeBrush);
begin
DrawEllipse(ARect, AOpacity, nil, ABrush);
end;
procedure TCustomNativeCanvas.FillArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single);
begin
DrawArc(Center, Radius, StartAngle, SweepAngle, AOpacity, FCanvas.Fill, nil);
end;
procedure TCustomNativeCanvas.FillArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const ABrush: TBrush);
begin
DrawArc(Center, Radius, StartAngle, SweepAngle, AOpacity, ABrush, nil);
end;
procedure TCustomNativeCanvas.DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single);
begin
DrawArc(Center, Radius, StartAngle, SweepAngle, AOpacity, nil, FCanvas.Stroke);
end;
procedure TCustomNativeCanvas.DrawArc(const Center, Radius: TPointF; StartAngle, SweepAngle: Single; const AOpacity: Single; const ABrush: TStrokeBrush);
begin
DrawArc(Center, Radius, StartAngle, SweepAngle, AOpacity, nil, ABrush);
end;
procedure TCustomNativeCanvas.FillPolygon(const Points: TPolygon; const AOpacity: Single);
begin
DrawPolygon(Points, AOpacity, FCanvas.Fill, nil);
end;
procedure TCustomNativeCanvas.DrawPolygon(const Points: TPolygon; const AOpacity: Single);
begin
DrawPolygon(Points, AOpacity, nil, FCanvas.Stroke);
end;
{$ENDIF}
{$IFDEF ANDROID}
function JBitmapToBitmap(const AImage: JBitmap): TBitmap;
var
Surface: TBitmapSurface;
begin
Surface := TBitmapSurface.Create;
Result := nil;
try
if JBitmapToSurface(AImage, Surface) then
begin
Result := TBitmap.Create;
Result.Assign(Surface);
end;
finally
Surface.Free;
end;
end;
function BitmapToJBitmap(const ABitmap: TBitmap): JBitmap;
var
BitmapSurface: TBitmapSurface;
begin
Assert(ABitmap <> nil);
Result := TJBitmap.JavaClass.createBitmap(ABitmap.Width, ABitmap.Height, TJBitmap_Config.JavaClass.ARGB_8888);
BitmapSurface := TBitmapSurface.Create;
try
BitmapSurface.Assign(ABitmap);
if not SurfaceToJBitmap(BitmapSurface, Result) then
Result := nil;
finally
BitmapSurface.Free;
end;
end;
procedure TAndroidNativeCanvas.ApplyFill(const Paint1: JPaint; const ABrush: TBrush; const ARect: TRectF; const AOpacity: Single);
begin
if (ABrush.Kind = TBrushKind.Resource) and (ABrush.Resource <> nil) and (ABrush.Resource.Brush <> nil) then
ABrush.Assign(ABrush.Resource.Brush);
Paint1.setStyle(TJPaint_Style.Wrap(TJPaint_Style.JavaClass.Fill));
case ABrush.Kind of
TBrushKind.Solid:
Paint1.setARGB(TColorRec(ABrush.Color).A, TColorRec(ABrush.Color).B, TColorRec(ABrush.Color).G, TColorRec(ABrush.Color).R);
TBrushKind.Gradient:
ApplyGradient(Paint1, ABrush, ARect);
else
Paint1.setARGB(0, 255, 255, 255);
end;
end;
procedure TAndroidNativeCanvas.ApplyGradient(const Paint1: JPaint; const ABrush: TBrush; const ARect: TRectF);
var
i: Integer;
aColors: TJavaArray<Integer>;
aStops: TJavaArray<Single>;
aLinearShader: JLinearGradient;
aRadialShader: JRadialGradient;
begin
aColors := TJavaArray<Integer>.Create(ABrush.Gradient.Points.Count);
aStops := TJavaArray<Single>.Create(ABrush.Gradient.Points.Count);
for i := 0 to ABrush.Gradient.Points.Count - 1 do
begin
aColors[ABrush.Gradient.Points.Count - 1 - i] := Integer(ABrush.Gradient.Points[i].Color);
aStops[ABrush.Gradient.Points.Count - 1 - i] := 1 - ABrush.Gradient.Points[i].Offset;
end;
case ABrush.Gradient.Style of
// 线渐层
TGradientStyle.Linear:
begin
aLinearShader := TJLinearGradient.JavaClass.init(ARect.Left + ABrush.Gradient.StopPosition.X * ARect.Width, ARect.Top + ABrush.Gradient.StopPosition.Y * ARect.Height, ARect.Left + ABrush.Gradient.StartPosition.X * ARect.Width, ARect.Top + ABrush.Gradient.StartPosition.Y * ARect.Height, aColors, aStops, TJShader_TileMode.JavaClass.CLAMP);
Paint1.setShader(aLinearShader);
aLinearShader := nil;
end;
// 圆渐层
TGradientStyle.Radial:
begin
aRadialShader := TJRadialGradient.JavaClass.init(ARect.CenterPoint.X, ARect.CenterPoint.Y, ARect.Width / 2, aColors, aStops, TJShader_TileMode.JavaClass.CLAMP);
Paint1.setShader(aRadialShader);
aRadialShader := nil;
end;
else
Paint1.setShader(nil);
end;
FreeAndNil(aColors);
FreeAndNil(aStops);
end;
procedure TAndroidNativeCanvas.ApplyStroke(const Paint1: JPaint; const AStroke: TStrokeBrush; const ARect: TRectF; const AOpacity: Single);
var
i: Integer;
Dash: TJavaArray<Single>;
begin
if (AStroke.Kind = TBrushKind.Resource) and (AStroke.Resource <> nil) and (AStroke.Resource.Brush <> nil) then
AStroke.Assign(AStroke.Resource.Brush);
Paint1.setStyle(TJPaint_Style.Wrap(TJPaint_Style.JavaClass.Stroke));
// Thickness = 0 还是有线
if AStroke.Thickness > 0 then
begin
Paint1.setStrokeWidth(AStroke.Thickness);
case AStroke.Kind of
TBrushKind.Solid, TBrushKind.Bitmap:
Paint1.setARGB(TColorRec(AStroke.Color).A, TColorRec(AStroke.Color).B, TColorRec(AStroke.Color).G, TColorRec(AStroke.Color).R);
TBrushKind.Gradient:
ApplyGradient(Paint1, AStroke, ARect);
else
Paint1.setARGB(0, 0, 0, 0);
end;
case AStroke.Cap of
TStrokeCap.Flat:
Paint1.setStrokeCap(TJPaint_Cap.JavaClass.BUTT);
TStrokeCap.Round:
Paint1.setStrokeCap(TJPaint_Cap.JavaClass.Round);
end;
if Length(AStroke.DashArray) > 0 then
begin
Dash := TJavaArray<Single>.Create(Length(AStroke.DashArray));
for i := 0 to High(AStroke.DashArray) do
begin
Dash[i] := AStroke.DashArray[i] * AStroke.Thickness;
if AStroke.Cap = TStrokeCap.Round then
begin
if Odd(i) then
Dash[i] := (AStroke.DashArray[i] + 0.9) * AStroke.Thickness
else
Dash[i] := (AStroke.DashArray[i] - 0.9) * AStroke.Thickness;
end;
end;
Paint1.setPathEffect(TJDashPathEffect.JavaClass.init(Dash, 0));
end;
case AStroke.Join of
TStrokeJoin.Miter:
Paint1.setStrokeJoin(TJPaint_Join.JavaClass.Miter);
TStrokeJoin.Round:
Paint1.setStrokeJoin(TJPaint_Join.JavaClass.Round);
TStrokeJoin.Bevel:
Paint1.setStrokeJoin(TJPaint_Join.JavaClass.Bevel);
end;
end
else
Paint1.setARGB(0, 0, 0, 0);
end;
procedure TAndroidNativeCanvas.DrawBitmap(const ABitmap: TBitmap; const SrcRect, DstRect: TRectF; const AOpacity: Single; const HighSpeed: Boolean);
var
Paint1: JPaint;
jb: JBitmap;
src: JRect;
dst: JRectF;
begin