介紹
重新想象 Windows 8 Store Apps 之 繪圖
Shape - 圖形
Path - 路徑
Stroke - 筆劃
Brush - 畫筆
示例
1、演示如何繪制圖形
Drawing/Shape.xaml
<Page
x:Class="XamlDemo.Drawing.Shape"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:XamlDemo.Drawing"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="Transparent">
<StackPanel Margin="120 0 0 0">
<!--
繪制圖形
-->
<!--畫直線-->
<Line X1="0" Y1="0" X2="300" Y2="100" Stroke="Blue" StrokeThickness="3" />
<!--畫矩形-->
<Rectangle Width="200" Height="50" Fill="Red" Stroke="Yellow" StrokeThickness="3" />
<!--畫折線(即多條連接起來的直線)-->
<Polyline Points="10,100 50,10 100,100" Stroke="Green" StrokeThickness="3" />
<!--畫多邊形-->
<Polygon Points="50,50 100,50 300,100 200,100 100,200" Fill="Yellow" Stroke="Red" StrokeThickness="6" />
<!--畫橢圓-->
<Ellipse Width="100" Height="50" Fill="Orange" Stroke="Red" StrokeThickness="6" />
<!--
Stretch - 拉伸方式(Windows.UI.Xaml.Media.Stretch 枚舉)
Fill - 充滿容器,不保留長寬比
None - 不做任何處理,如果圖片比容器大,則多出的部分被剪裁
Uniform - 等比縮放到容器(默認值)
UniformToFill - 充滿容器,且保留長寬比,多出的部分被剪裁
-->
<Grid Width="200" Height="100" HorizontalAlignment="Left" Background="Black">
<Ellipse Fill="Orange" Stroke="Red" StrokeThickness="6" Stretch="UniformToFill" />
</Grid>
</StackPanel>
</Grid>
</Page>
2、演示如何繪制路徑
Drawing/Path.xaml
<Page
x:Class="XamlDemo.Drawing.Path"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:XamlDemo.Drawing"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="Transparent">
<StackPanel Margin="120 0 0 0" HorizontalAlignment="Left">
<!--通過 Path 繪制圖形-->
<!--
Path.Data - 要繪制的 Geometry
-->
<Path Fill="Yellow" Stroke="Blue" StrokeThickness="6">
<Path.Data>
<!--
EllipseGeometry - 橢圓
Center - 原點坐標
RadiusX - X軸半徑
RadiusY - Y軸半徑
-->
<EllipseGeometry Center="50,25" RadiusX="50" RadiusY="25" />
</Path.Data>
</Path>
<Path Fill="Yellow" Stroke="Blue" StrokeThickness="6">
<Path.Data>
<!--
RectangleGeometry - 矩形
Rect - 左上角點的坐標,矩形寬,矩形高
-->
<RectangleGeometry Rect="100,0,100,50" />
</Path.Data>
</Path>
<Path Stroke="Blue" StrokeThickness="6" >
<Path.Data>
<!--
LineGeometry - 線
StartPoint - 起點坐標
EndPoint - 終點坐標
-->
<LineGeometry StartPoint="200,0" EndPoint="300,100" />
</Path.Data>
</Path>
<Path Stroke="Blue" StrokeThickness="6">
<Path.Data>
<!--
PathGeometry - 路徑,一個可能由弧、曲線、橢圓、直線、矩形組成的復雜圖形
-->
<PathGeometry>
<PathGeometry.Figures>
<!--
StartPoint - 起點坐標
-->
<PathFigure StartPoint="300,0">
<PathFigure.Segments>
<!--
Path 的 Segment 集合
-->
<PathSegmentCollection>
<!--
LineSegment - 單一線段
PolyLineSegment - 線段集合
ArcSegment - 弧(橢圓的一部分)
BezierSegment - 兩點之間的一條三次貝塞爾曲線
QuadraticBezierSegment - 兩點之間的一條二次貝塞爾曲線
PolyBezierSegment - 一條或多條三次貝塞爾曲線
PolyQuadraticBezierSegment - 一條或多條二次貝塞爾曲線
-->
<!--
Size - 弧的 X 軸和 Y 軸半徑
Point - 該 Segment 的終點坐標,即下一個 Segment 的起點坐標
-->
<ArcSegment Size="100,50" Point="400,100" />
<!--
Point - 該 Segment 的終點坐標,即下一個 Segment 的起點坐標
-->
<LineSegment Point="500,200" />
</PathSegmentCollection>
</PathFigure.Segments>
</PathFigure>
</PathGeometry.Figures>
</PathGeometry>
</Path.Data>
</Path>
<Path Fill="Yellow" Stroke="Blue" StrokeThickness="6">
<Path.Data>
<!--
GeometryGroup - 由一個或多個 Geometry 組成
FillRule - 填充規則(System.Windows.Media.FillRule 枚舉)
EvenOdd - 確定一個點是否位於填充區域內的規則,具體方法是從該點沿
任意方向畫一條無限長的射線,然後計算該射線在給定形狀中因交叉而形成的路徑段數。如果該數為奇數,則
點在內部;如果為偶數,則點在外部。
Nonzero - 確定一個點是否位於填充區域內的規則,具體方法是從該點沿
任意方向畫一條無限長的射線,然後檢查形狀段與該射線的交點。從零開始計數,每當線段從左向右穿過該射
線時加 1,而每當路徑段從右向左穿過該射線時減 1。計算交點的數目後,如果結果為零,則說明該點位於路
徑外部。否則,它位於路徑內部。
-->
<GeometryGroup FillRule="EvenOdd">
<LineGeometry StartPoint="200,0" EndPoint="300,100" />
<EllipseGeometry Center="250,50" RadiusX="50" RadiusY="50" />
<RectangleGeometry Rect="200, 0, 100, 100" />
</GeometryGroup>
</Path.Data>
</Path>
</StackPanel>
</Grid>
</Page>
3、演示 Stroke(筆劃)的應用
Drawing/Stroke.xaml
<Page
x:Class="XamlDemo.Drawing.Stroke"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:XamlDemo.Drawing"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="Transparent">
<StackPanel Margin="120 0 0 0">
<!--Stroke - 筆劃-->
<!--
StrokeDashArray - 虛線實體和虛線間隙的值的集合
以本例為例:第1條實線長度2,第1條虛線長度4,第2條實線長度6,第2條虛線長度2,第3條實線長度4,第3條虛線長度6
長度為 StrokeDashArray 乘以 StrokeThickness/2
-->
<Line X1="0" Y1="0" X2="1000" Y2="0" Stroke="Orange" StrokeThickness="20" StrokeDashArray="2 4 6" />
<!--
StrokeDashCap - 虛線兩端(線帽)的類型(System.Windows.Media.PenLineCap 枚舉)
PenLineCap.Flat - 無。默認值
PenLineCap.Round - 直徑等於 StrokeThickness
PenLineCap.Square - 高度等於 StrokeThickness 並且 寬度等於 StrokeThickness/2
PenLineCap.Triangle - 底邊長等於 StrokeThickness 的等腰直角三角形
-->
<Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange"
StrokeThickness="20" StrokeDashArray="2" StrokeDashCap="Flat" />
<Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange"
StrokeThickness="20" StrokeDashArray="2" StrokeDashCap="Round" />
<Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange"
StrokeThickness="20" StrokeDashArray="2" StrokeDashCap="Square" />
<Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange"
StrokeThickness="20" StrokeDashArray="2" StrokeDashCap="Triangle" />
<!--
StrokeStartLineCap - 虛線起始端(線帽)的類型(System.Windows.Media.PenLineCap
枚舉)
StrokeEndLineCap - 虛線終結端(線帽)的類型(System.Windows.Media.PenLineCap 枚
舉)
-->
<Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange" StrokeThickness="20" StrokeDashArray="2" StrokeStartLineCap="Triangle" StrokeEndLineCap="Round"
/>
<!--
StrokeDashOffset - 虛線的起始點的便宜位置
以下舉例:畫一條以虛線間隙為起始的虛線
-->
<Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange" StrokeThickness="20" StrokeDashArray="2" StrokeDashOffset="10" />
<!--
StrokeLineJoin - 圖形連接點處的連接類型(System.Windows.Media.PenLineJoin 枚舉)
StrokeLineJoin.Bevel - 線形連接
StrokeLineJoin.Miter - 角形連接。默認值
StrokeLineJoin.Round - 弧形連接
-->
<StackPanel Margin="0 30 0 0" Orientation="Horizontal">
<Polyline Points="10,100 50,10 100,100" Stroke="Orange" StrokeThickness="20" HorizontalAlignment="Center" StrokeLineJoin="Bevel" />
<Polyline Points="10,100 50,10 100,100" Stroke="Orange" StrokeThickness="20" HorizontalAlignment="Center" StrokeLineJoin="Miter" />
<Polyline Points="10,100 50,10 100,100" Stroke="Orange" StrokeThickness="20" HorizontalAlignment="Center" StrokeLineJoin="Round" />
</StackPanel>
<!--
StrokeMiterLimit - 斜接長度(藍色線部分)與 StrokeThickness/2 的比值。默認值 10
,最小值 1
-->
<Grid Margin="0 30 0 0" HorizontalAlignment="Left">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="120" />
<ColumnDefinition Width="120" />
<ColumnDefinition Width="120" />
</Grid.ColumnDefinitions>
<Polyline Grid.Column="0" Points="0,100 50,10 100,100" Stroke="Orange"
StrokeThickness="20" StrokeMiterLimit="1" />
<Line Grid.Column="0" X1="50" Y1="10" X2="50" Y2="0" Stroke="Blue" />
<Polyline Grid.Column="0" Points="0,100 50,10 100,100" Stroke="Red" />
<Polyline Grid.Column="1" Points="0,100 50,10 100,100" Stroke="Orange"
StrokeThickness="20" StrokeMiterLimit="2.0" />
<Line Grid.Column="1" X1="50" Y1="10" X2="50" Y2="-10" Stroke="Blue" />
<Polyline Grid.Column="1" Points="0,100 50,10 100,100" Stroke="Red" />
</Grid>
</StackPanel>
</Grid>
</Page>
4、演示 Brush(畫筆)的應用
Drawing/Brush.xaml
<Page
x:Class="XamlDemo.Drawing.Brush"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:XamlDemo.Drawing"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="Transparent">
<StackPanel Margin="120 0 0 0" HorizontalAlignment="Left">
<!--Brush - 畫筆-->
<!--
SolidColorBrush - 單色畫筆
Color - 顏色
格式如下:
預定義的Color的名稱。如:Red, Green, Blue
#RGB。如:#F00
#ARGB(A為Alpha值)。如:#FF00, #F0F0, #F00F
#RGB。如:#FF0000, #00FF00, #0000FF
#ARGB(A為Alpha值)。如:#FFFF0000, #FF00FF00, #FF0000FF
-->
<Ellipse Margin="10" Width="200" Height="100" Stroke="Yellow" StrokeThickness="3" HorizontalAlignment="Left">
<Ellipse.Fill>
<SolidColorBrush Color="#88FF0000" />
</Ellipse.Fill>
</Ellipse>
<!--
ImageBrush - 圖像畫筆
ImageSource - 圖片地址
Stretch - 拉伸方式
AlignmentX - 水平方向的對齊方式。Center(默認值), Left, Right
AlignmentY - 垂直方向的對齊方式。Center(默認值), Top, Bottom
-->
<Rectangle Width="100" Height="100" Stroke="Red" StrokeThickness="1" HorizontalAlignment="Left" Margin="0 10 0 0">
<Rectangle.Fill>
<ImageBrush ImageSource="/Assets/Logo.png" AlignmentX="Right" AlignmentY="Bottom" Stretch="Fill" />
</Rectangle.Fill>
</Rectangle>
<WebView x:Name="webView" Source="http://webabcd.cnblogs.com" Width="300" Height="100" LoadCompleted="webView_LoadCompleted_1" HorizontalAlignment="Left" Margin="0 10 0
0" />
<!--
WebView - 浏覽器畫筆
SourceName - WebView 指向的 http 地址
注:如果需要顯示 WebView 的最新結果,需要調用 WebViewBrush.Redraw() 方法
-->
<Rectangle Width="300" Height="100" Stroke="Red" HorizontalAlignment="Left" Margin="0 10 0 0">
<Rectangle.Fill>
<WebViewBrush x:Name="webViewBrush" SourceName="webView"/>
</Rectangle.Fill>
</Rectangle>
<StackPanel Orientation="Horizontal" HorizontalAlignment="Left" Margin="0 10 0 0">
<Grid>
<Rectangle Width="200" Height="100" HorizontalAlignment="Left">
<Rectangle.Fill>
<!--
LinearGradientBrush - 線性漸變畫筆
StartPoint - 線性漸變的起點。默認漸變方向為對角線方向,默認
值為左上角0,0
EndPoint - 線性漸變的終點。默認漸變方向為對角線方向,默認值
為右下角1,1
GradientStop - 漸變中,過渡點的設置
Color - 過渡點的顏色
Offset - 過渡點的位置。相對於漸變線的比值。最小值0.0(默
認值),最大值1.0
ColorInterpolationMode - 插入漸變顏色的方式
(System.Windows.Media.ColorInterpolationMode 枚舉)
ScRgbLinearInterpolation - scRGB
SRgbLinearInterpolation - sRGB。默認值
-->
<LinearGradientBrush StartPoint="0,0" EndPoint="1,1" ColorInterpolationMode="SRgbLinearInterpolation">
<GradientStop Color="Red" Offset="0.0" />
<GradientStop Color="Green" Offset="0.25" />
<GradientStop Color="Blue" Offset="0.75" />
<GradientStop Color="Yellow" Offset="1.0" />
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<Line X1="0" Y1="0" X2="200" Y2="100" Stroke="Black" HorizontalAlignment="Left" />
</Grid>
<Grid Margin="10 0 0 0">
<Rectangle Width="200" Height="100" HorizontalAlignment="Left">
<Rectangle.Fill>
<!--
MappingMode - 指定線性漸變的起點(StartPoint)和終點(EndPoint)相對於輸出區域是相對的還是絕對的(System.Windows.Media.BrushMappingMode 枚舉)
MappingMode.RelativeToBoundingBox - 相對坐標。默認值
MappingMode.Absolute - 絕對坐標
-->
<LinearGradientBrush StartPoint="0,0" EndPoint="200,100" MappingMode="Absolute">
<GradientStop Color="Red" Offset="0.0" />
<GradientStop Color="Green" Offset="0.25" />
<GradientStop Color="Blue" Offset="0.75" />
<GradientStop Color="Yellow" Offset="1.0" />
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<Line X1="0" Y1="0" X2="200" Y2="100" Stroke="Black" HorizontalAlignment="Left" />
</Grid>
<Grid Margin="10 0 0 0">
<Rectangle Width="200" Height="100" HorizontalAlignment="Left">
<Rectangle.Fill>
<!--
SpreadMethod - 線性漸變線(黑色線)之外, 輸出區域之內的漸變方式(System.Windows.Media.GradientSpreadMethod枚舉)
GradientSpreadMethod.Pad - 用線性漸變線末端的顏色值填充剩余空間。默認值
-->
<LinearGradientBrush StartPoint="0.4,0.5" EndPoint="0.6,0.5" SpreadMethod="Pad">
<GradientStop Color="Red" Offset="0.0" />
<GradientStop Color="Green" Offset="1.0" />
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<Line X1="80" Y1="50" X2="120" Y2="50" Stroke="Black" HorizontalAlignment="Left" />
</Grid>
<Grid Margin="10 0 0 0">
<Rectangle Width="200" Height="100" HorizontalAlignment="Left">
<Rectangle.Fill>
<!--
SpreadMethod - 線性漸變線(黑色線)之外, 輸出區域之內的漸變方式(System.Windows.Media.GradientSpreadMethod枚舉)
GradientSpreadMethod.Reflect - 相鄰填充區域,以 相反方向 重復漸變,直至填充滿整個剩余空間
-->
<LinearGradientBrush StartPoint="0.4,0.5" EndPoint="0.6,0.5" SpreadMethod="Reflect">
<GradientStop Color="Red" Offset="0.0" />
<GradientStop Color="Green" Offset="1.0" />
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<Line X1="80" Y1="50" X2="120" Y2="50" Stroke="Black" HorizontalAlignment="Left" />
</Grid>
<Grid Margin="10 0 0 0">
<Rectangle Width="200" Height="100" HorizontalAlignment="Left">
<Rectangle.Fill>
<!--
SpreadMethod - 線性漸變線(黑色線)之外, 輸出區域之內的漸變方式(System.Windows.Media.GradientSpreadMethod枚舉)
GradientSpreadMethod.Repeat - 相鄰填充區域,以 相同方向 重復漸變,直至填充滿整個剩余空間
-->
<LinearGradientBrush StartPoint="0.4,0.5" EndPoint="0.6,0.5" SpreadMethod="Repeat">
<GradientStop Color="Red" Offset="0.0" />
<GradientStop Color="Green" Offset="1.0" />
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<Line X1="80" Y1="50" X2="120" Y2="50" Stroke="Black" HorizontalAlignment="Left" />
</Grid>
</StackPanel>
</StackPanel>
</Grid>
</Page>
Drawing/Brush.xaml.cs
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Navigation;
namespace XamlDemo.Drawing
{
public sealed partial class Brush : Page
{
public Brush()
{
this.InitializeComponent();
}
private void webView_LoadCompleted_1(object sender, NavigationEventArgs e)
{
// WebView 加載完畢後重繪 WebViewBrush
webViewBrush.Redraw();
}
}
}
OK
[源碼下載]:http://files.cnblogs.com/webabcd/Windows8.rar