aboutsummaryrefslogtreecommitdiffstats
path: root/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Logging/Views/EmbeddedLogsView.xaml
blob: afd5b9a982e5600081eb863dfe1ac20c4e5d8eb3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
<UserControl x:Class="Tango.MachineStudio.Logging.Views.EmbeddedLogsView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:autoComplete="clr-namespace:Tango.AutoComplete.Editors;assembly=Tango.AutoComplete"
             xmlns:autoCompleteMachine="clr-namespace:Tango.MachineStudio.Common.AutoComplete;assembly=Tango.MachineStudio.Common"
             xmlns:converters="clr-namespace:Tango.SharedUI.Converters;assembly=Tango.SharedUI"
             xmlns:global="clr-namespace:Tango.MachineStudio.Logging"
             xmlns:localConverters="clr-namespace:Tango.MachineStudio.Logging.Converters"
             xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
             xmlns:vm="clr-namespace:Tango.MachineStudio.Logging.ViewModels"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:Tango.MachineStudio.Logging.Views"
             mc:Ignorable="d" 
             d:DesignHeight="1080" d:DesignWidth="1920" d:DataContext="{d:DesignInstance Type=vm:EmbeddedLogsViewVM, IsDesignTimeCreatable=False}" DataContext="{x:Static global:ViewModelLocator.EmbeddedLogsViewVM}">
    <UserControl.Resources>
        <autoCompleteMachine:MachinesProvider x:Key="MachinesProvider" />
        <converters:DateTimeUTCToShortDateTimeConverter x:Key="DateTimeUTCToShortDateTimeConverter" />
        <converters:DateTimeUTCToStringConverter x:Key="DateTimeUTCToStringConverter" />
        <localConverters:DateIsInListToBooleanConverter x:Key="DateIsInListToBooleanConverter" />

        <Style x:Key="CustomCalendarDayButtonStyle" TargetType="{x:Type CalendarDayButton}" BasedOn="{StaticResource MaterialDesignCalendarDayButton}">
            <Style.Triggers>
                <DataTrigger Value="True">
                    <DataTrigger.Binding>
                        <MultiBinding Converter="{StaticResource DateIsInListToBooleanConverter}">
                            <Binding />
                            <Binding RelativeSource="{RelativeSource AncestorType=UserControl}" Path="DataContext.Dates" />
                            <Binding RelativeSource="{RelativeSource AncestorType=DatePicker}" Path="IsDropDownOpen" ></Binding>
                        </MultiBinding>
                    </DataTrigger.Binding>
                    <Setter Property="Foreground" Value="{StaticResource AccentColorBrush}" />
                </DataTrigger>
            </Style.Triggers>
        </Style>

        <Style x:Key="HighlightDatePickerStyle" TargetType="{x:Type Calendar}" BasedOn="{StaticResource {x:Type Calendar}}">
            <Setter Property="CalendarDayButtonStyle" Value="{StaticResource CustomCalendarDayButtonStyle}" />
        </Style>

        <Style TargetType="DatePickerTextBox" BasedOn="{StaticResource {x:Type DatePickerTextBox}}">
            <Setter Property="IsReadOnly" Value="True"/>
        </Style>
    </UserControl.Resources>

    <Grid>
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="79"/>
                <RowDefinition Height="1*"/>
            </Grid.RowDefinitions>

            <Border Background="#F1F1F1">
                <Border.Effect>
                    <DropShadowEffect />
                </Border.Effect>
                <Grid>
                    <StackPanel Orientation="Horizontal">
                        <Button Margin="10 0 0 0" Height="50" Style="{StaticResource MaterialDesignFlatButton}" Foreground="#202020" Command="{Binding NavigateToHomeCommand}" HorizontalContentAlignment="Left">
                            <StackPanel Orientation="Horizontal" >
                                <materialDesign:PackIcon Kind="ArrowLeftBold" Width="20" Height="20" />
                                <TextBlock Margin="5 0 0 0" FontSize="16">BACK</TextBlock>
                            </StackPanel>
                        </Button>
                        <Border Margin="10" Padding="5" BorderBrush="DimGray" BorderThickness="1">
                            <Border.Background>
                                <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
                                    <GradientStop Color="White"/>
                                    <GradientStop Color="#FFEAEAEA" Offset="1"/>
                                </LinearGradientBrush>
                            </Border.Background>
                            <StackPanel Orientation="Horizontal">
                                <materialDesign:PackIcon Kind="Calendar" Width="24" Height="24" VerticalAlignment="Bottom" Margin="0 0 0 5" />
                                <DatePicker x:Name="datePicker" DisplayDateStart="{Binding MinDate}" DisplayDateEnd="{Binding MaxDate}" CalendarStyle="{StaticResource HighlightDatePickerStyle}" SelectedDate="{Binding SelectedDate}" materialDesign:HintAssist.Hint="Pick Date" Margin="10 0 0 5" Width="200" VerticalAlignment="Bottom" FontSize="16">
                                </DatePicker>
                                <ToggleButton VerticalAlignment="Bottom" Margin="20 0 0 5" IsChecked="{Binding IsRealTime}"></ToggleButton>
                                <TextBlock VerticalAlignment="Center" Margin="10 17 0 0">Real-Time</TextBlock>
                            </StackPanel>
                        </Border>

                        <Button Style="{StaticResource MaterialDesignFlatButton}" Command="{Binding ToggleRealTimePaused}" Padding="0" Height="50" Width="50" Foreground="#202020" ToolTip="Pause/Resume Real-Time">
                            <materialDesign:PackIcon Width="50" Height="50">
                                <materialDesign:PackIcon.Style>
                                    <Style TargetType="materialDesign:PackIcon">
                                        <Setter Property="Kind" Value="Pause"></Setter>
                                        <Style.Triggers>
                                            <DataTrigger Binding="{Binding RealTimePaused}" Value="True">
                                                <Setter Property="Kind" Value="Play"></Setter>
                                            </DataTrigger>
                                        </Style.Triggers>
                                    </Style>
                                </materialDesign:PackIcon.Style>
                            </materialDesign:PackIcon>
                        </Button>
                    </StackPanel>
                </Grid>
            </Border>

            <Grid Grid.Row="1" Background="#B3FFFFFF">
                <Grid Margin="10">
                    <Grid.ColumnDefinitions>

                        <ColumnDefinition Width="1*"/>
                    </Grid.ColumnDefinitions>

                    <Grid>
                        <Grid>
                            <Grid>
                                <DataGrid Background="Transparent" AutoGenerateColumns="False" SelectionMode="Single" ItemsSource="{Binding Logs}" SelectedItem="{Binding SelectedEvent}" RowHeight="40" CanUserAddRows="False" CanUserDeleteRows="False" CanUserReorderColumns="True" IsReadOnly="True">
                                    <DataGrid.RowStyle>
                                        <Style TargetType="DataGridRow" BasedOn="{StaticResource {x:Type DataGridRow}}">
                                            <Style.Triggers>
                                                <Trigger Property="IsMouseOver" Value="True">
                                                    <Setter Property="Background" Value="Transparent"></Setter>
                                                    <Setter Property="Foreground" Value="{StaticResource AccentColorBrush}" />
                                                    <Setter Property="Cursor" Value="Hand"></Setter>
                                                </Trigger>
                                                <Trigger Property="IsSelected" Value="True">
                                                    <Setter Property="Background" Value="Transparent"></Setter>
                                                </Trigger>
                                                <Trigger Property="IsFocused" Value="True">
                                                    <Setter Property="Background" Value="Transparent"></Setter>
                                                </Trigger>
                                                <!--<DataTrigger Binding="{Binding CallerMethodName}" Value="OnStartup">
                                                    <Setter Property="Background" Value="{StaticResource AccentColorBrush}"></Setter>
                                                    <Setter Property="Foreground" Value="White" />
                                                    <Setter Property="FontWeight" Value="SemiBold"></Setter>
                                                    <Setter Property="Cursor" Value="Arrow"></Setter>
                                                </DataTrigger>-->
                                            </Style.Triggers>
                                        </Style>
                                    </DataGrid.RowStyle>
                                    <DataGrid.CellStyle>
                                        <Style TargetType="DataGridCell" BasedOn="{StaticResource {x:Type DataGridCell}}">
                                            <Setter Property="BorderThickness" Value="0"/>
                                            <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
                                            <Setter Property="VerticalContentAlignment" Value="Center"></Setter>
                                            <Style.Triggers>
                                                <Trigger Property="IsSelected" Value="True">
                                                    <Setter Property="Background" Value="Transparent"></Setter>
                                                </Trigger>
                                                <!--<DataTrigger Binding="{Binding CallerMethodName}" Value="OnStartup">
                                                    <Setter Property="Background" Value="{StaticResource AccentColorBrush}"></Setter>
                                                    <Setter Property="Foreground" Value="White" />
                                                    <Setter Property="FontWeight" Value="SemiBold"></Setter>
                                                    <Setter Property="Cursor" Value="Arrow"></Setter>
                                                </DataTrigger>-->
                                            </Style.Triggers>
                                        </Style>
                                    </DataGrid.CellStyle>
                                    <DataGrid.Columns>
                                        <DataGridTemplateColumn Header="#">
                                            <DataGridTemplateColumn.CellTemplate>
                                                <DataTemplate>
                                                    <materialDesign:PackIcon Width="16" Height="16">
                                                        <materialDesign:PackIcon.Style>
                                                            <Style TargetType="materialDesign:PackIcon">
                                                                <Setter Property="Kind" Value="Alert"></Setter>
                                                                <Style.Triggers>
                                                                    <DataTrigger Binding="{Binding Category}" Value="Info">
                                                                        <Setter Property="Kind" Value="Information"></Setter>
                                                                        <Setter Property="Foreground" Value="DimGray"></Setter>
                                                                    </DataTrigger>
                                                                    <DataTrigger Binding="{Binding Category}" Value="Warning">
                                                                        <Setter Property="Kind" Value="Alert"></Setter>
                                                                        <Setter Property="Foreground" Value="#FFA300"></Setter>
                                                                    </DataTrigger>
                                                                    <DataTrigger Binding="{Binding Category}" Value="Error">
                                                                        <Setter Property="Kind" Value="AlertOctagon"></Setter>
                                                                        <Setter Property="Foreground" Value="#FF5C5C"></Setter>
                                                                    </DataTrigger>
                                                                    <DataTrigger Binding="{Binding Category}" Value="Critical">
                                                                        <Setter Property="Kind" Value="BellPlus"></Setter>
                                                                        <Setter Property="Foreground" Value="Red"></Setter>
                                                                    </DataTrigger>
                                                                    <DataTrigger Binding="{Binding Category}" Value="Debug">
                                                                        <Setter Property="Kind" Value="Bug"></Setter>
                                                                        <Setter Property="Foreground" Value="#303030"></Setter>
                                                                    </DataTrigger>
                                                                    <!--<DataTrigger Binding="{Binding CallerMethodName}" Value="OnStartup">
                                                                        <Setter Property="Kind" Value="ClockFast"></Setter>
                                                                        <Setter Property="Foreground" Value="White"></Setter>
                                                                    </DataTrigger>-->
                                                                </Style.Triggers>
                                                            </Style>
                                                        </materialDesign:PackIcon.Style>
                                                    </materialDesign:PackIcon>
                                                </DataTemplate>
                                            </DataGridTemplateColumn.CellTemplate>
                                        </DataGridTemplateColumn>
                                        <DataGridTextColumn Header="DATE TIME" Binding="{Binding TimeStamp,StringFormat='MM/dd/yyyy HH:mm:ss.ff'}" />
                                        <DataGridTextColumn Header="FILE" Binding="{Binding DebugLogResponse.FileName}" />
                                        <DataGridTextColumn Header="LINE" Binding="{Binding DebugLogResponse.LineNumber}" />
                                        <DataGridTextColumn Header="MODULE" Binding="{Binding DebugLogResponse.ModuleId}" />
                                        <DataGridTextColumn Header="FILTER" Binding="{Binding DebugLogResponse.Filter}" />
                                        <DataGridTemplateColumn Header="MESSAGE" Width="1*">
                                            <DataGridTemplateColumn.CellTemplate>
                                                <DataTemplate>
                                                    <TextBlock Text="{Binding Message}" TextTrimming="CharacterEllipsis"></TextBlock>
                                                </DataTemplate>
                                            </DataGridTemplateColumn.CellTemplate>
                                        </DataGridTemplateColumn>
                                    </DataGrid.Columns>
                                </DataGrid>
                            </Grid>
                        </Grid>
                    </Grid>
                </Grid>
            </Grid>
        </Grid>
    </Grid>
</UserControl>
class="w"> /// <param name="points">The points of the polyline in x and y pairs, therefore the array is interpreted as (x1, y1, x2, y2, ..., xn, yn).</param> /// <param name="color">The color for the line.</param> internal static void DrawPolylineAa(this WriteableBitmap bmp, int[] points, Color color) { var col = ConvertColor(color); bmp.DrawPolylineAa(points, col); } /// <summary> /// Draws a polyline anti-aliased. Add the first point also at the end of the array if the line should be closed. /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="points">The points of the polyline in x and y pairs, therefore the array is interpreted as (x1, y1, x2, y2, ..., xn, yn).</param> /// <param name="color">The color for the line.</param> internal static void DrawPolylineAa(this WriteableBitmap bmp, int[] points, int color) { using (var context = bmp.GetBitmapContext()) { // Use refs for faster access (really important!) speeds up a lot! var w = context.Width; var h = context.Height; var x1 = points[0]; var y1 = points[1]; for (var i = 2; i < points.Length; i += 2) { var x2 = points[i]; var y2 = points[i + 1]; DrawLineAa(context, w, h, x1, y1, x2, y2, color); x1 = x2; y1 = y2; } } } /// <summary> /// Draws a triangle. /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="x1">The x-coordinate of the 1st point.</param> /// <param name="y1">The y-coordinate of the 1st point.</param> /// <param name="x2">The x-coordinate of the 2nd point.</param> /// <param name="y2">The y-coordinate of the 2nd point.</param> /// <param name="x3">The x-coordinate of the 3rd point.</param> /// <param name="y3">The y-coordinate of the 3rd point.</param> /// <param name="color">The color.</param> internal static void DrawTriangle(this WriteableBitmap bmp, int x1, int y1, int x2, int y2, int x3, int y3, Color color) { var col = ConvertColor(color); bmp.DrawTriangle(x1, y1, x2, y2, x3, y3, col); } /// <summary> /// Draws a triangle. /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="x1">The x-coordinate of the 1st point.</param> /// <param name="y1">The y-coordinate of the 1st point.</param> /// <param name="x2">The x-coordinate of the 2nd point.</param> /// <param name="y2">The y-coordinate of the 2nd point.</param> /// <param name="x3">The x-coordinate of the 3rd point.</param> /// <param name="y3">The y-coordinate of the 3rd point.</param> /// <param name="color">The color.</param> internal static void DrawTriangle(this WriteableBitmap bmp, int x1, int y1, int x2, int y2, int x3, int y3, int color) { using (var context = bmp.GetBitmapContext()) { // Use refs for faster access (really important!) speeds up a lot! int w = context.Width; int h = context.Height; DrawLine(context, w, h, x1, y1, x2, y2, color); DrawLine(context, w, h, x2, y2, x3, y3, color); DrawLine(context, w, h, x3, y3, x1, y1, color); } } /// <summary> /// Draws a quad. /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="x1">The x-coordinate of the 1st point.</param> /// <param name="y1">The y-coordinate of the 1st point.</param> /// <param name="x2">The x-coordinate of the 2nd point.</param> /// <param name="y2">The y-coordinate of the 2nd point.</param> /// <param name="x3">The x-coordinate of the 3rd point.</param> /// <param name="y3">The y-coordinate of the 3rd point.</param> /// <param name="x4">The x-coordinate of the 4th point.</param> /// <param name="y4">The y-coordinate of the 4th point.</param> /// <param name="color">The color.</param> internal static void DrawQuad(this WriteableBitmap bmp, int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4, Color color) { var col = ConvertColor(color); bmp.DrawQuad(x1, y1, x2, y2, x3, y3, x4, y4, col); } /// <summary> /// Draws a quad. /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="x1">The x-coordinate of the 1st point.</param> /// <param name="y1">The y-coordinate of the 1st point.</param> /// <param name="x2">The x-coordinate of the 2nd point.</param> /// <param name="y2">The y-coordinate of the 2nd point.</param> /// <param name="x3">The x-coordinate of the 3rd point.</param> /// <param name="y3">The y-coordinate of the 3rd point.</param> /// <param name="x4">The x-coordinate of the 4th point.</param> /// <param name="y4">The y-coordinate of the 4th point.</param> /// <param name="color">The color.</param> internal static void DrawQuad(this WriteableBitmap bmp, int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4, int color) { using (var context = bmp.GetBitmapContext()) { // Use refs for faster access (really important!) speeds up a lot! int w = context.Width; int h = context.Height; DrawLine(context, w, h, x1, y1, x2, y2, color); DrawLine(context, w, h, x2, y2, x3, y3, color); DrawLine(context, w, h, x3, y3, x4, y4, color); DrawLine(context, w, h, x4, y4, x1, y1, color); } } #endregion #region Rectangle /// <summary> /// Draws a rectangle. /// x2 has to be greater than x1 and y2 has to be greater than y1. /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="x1">The x-coordinate of the bounding rectangle's left side.</param> /// <param name="y1">The y-coordinate of the bounding rectangle's top side.</param> /// <param name="x2">The x-coordinate of the bounding rectangle's right side.</param> /// <param name="y2">The y-coordinate of the bounding rectangle's bottom side.</param> /// <param name="color">The color.</param> internal static void DrawRectangle(this WriteableBitmap bmp, int x1, int y1, int x2, int y2, Color color) { var col = ConvertColor(color); bmp.DrawRectangle(x1, y1, x2, y2, col); } /// <summary> /// Draws a rectangle. /// x2 has to be greater than x1 and y2 has to be greater than y1. /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="x1">The x-coordinate of the bounding rectangle's left side.</param> /// <param name="y1">The y-coordinate of the bounding rectangle's top side.</param> /// <param name="x2">The x-coordinate of the bounding rectangle's right side.</param> /// <param name="y2">The y-coordinate of the bounding rectangle's bottom side.</param> /// <param name="color">The color.</param> internal static void DrawRectangle(this WriteableBitmap bmp, int x1, int y1, int x2, int y2, int color) { using (var context = bmp.GetBitmapContext()) { // Use refs for faster access (really important!) speeds up a lot! var w = context.Width; var h = context.Height; var pixels = context.Pixels; // Check boundaries if ((x1 < 0 && x2 < 0) || (y1 < 0 && y2 < 0) || (x1 >= w && x2 >= w) || (y1 >= h && y2 >= h)) { return; } // Clamp boundaries if (x1 < 0) { x1 = 0; } if (y1 < 0) { y1 = 0; } if (x2 < 0) { x2 = 0; } if (y2 < 0) { y2 = 0; } if (x1 >= w) { x1 = w - 1; } if (y1 >= h) { y1 = h - 1; } if (x2 >= w) { x2 = w - 1; } if (y2 >= h) { y2 = h - 1; } var startY = y1 * w; var endY = y2 * w; var offset2 = endY + x1; var endOffset = startY + x2; var startYPlusX1 = startY + x1; // top and bottom horizontal scanlines for (var x = startYPlusX1; x <= endOffset; x++) { pixels[x] = color; // top horizontal line pixels[offset2] = color; // bottom horizontal line offset2++; } // offset2 == endY + x2 // vertical scanlines endOffset = startYPlusX1 + w; offset2 -= w; for (var y = startY + x2 + w; y <= offset2; y += w) { pixels[y] = color; // right vertical line pixels[endOffset] = color; // left vertical line endOffset += w; } } } #endregion #region Ellipse /// <summary> /// A Fast Bresenham Type Algorithm For Drawing Ellipses http://homepage.smc.edu/kennedy_john/belipse.pdf /// x2 has to be greater than x1 and y2 has to be greater than y1. /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="x1">The x-coordinate of the bounding rectangle's left side.</param> /// <param name="y1">The y-coordinate of the bounding rectangle's top side.</param> /// <param name="x2">The x-coordinate of the bounding rectangle's right side.</param> /// <param name="y2">The y-coordinate of the bounding rectangle's bottom side.</param> /// <param name="color">The color for the line.</param> internal static void DrawEllipse(this WriteableBitmap bmp, int x1, int y1, int x2, int y2, Color color) { var col = ConvertColor(color); bmp.DrawEllipse(x1, y1, x2, y2, col); } /// <summary> /// A Fast Bresenham Type Algorithm For Drawing Ellipses http://homepage.smc.edu/kennedy_john/belipse.pdf /// x2 has to be greater than x1 and y2 has to be greater than y1. /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="x1">The x-coordinate of the bounding rectangle's left side.</param> /// <param name="y1">The y-coordinate of the bounding rectangle's top side.</param> /// <param name="x2">The x-coordinate of the bounding rectangle's right side.</param> /// <param name="y2">The y-coordinate of the bounding rectangle's bottom side.</param> /// <param name="color">The color for the line.</param> internal static void DrawEllipse(this WriteableBitmap bmp, int x1, int y1, int x2, int y2, int color) { // Calc center and radius int xr = (x2 - x1) >> 1; int yr = (y2 - y1) >> 1; int xc = x1 + xr; int yc = y1 + yr; bmp.DrawEllipseCentered(xc, yc, xr, yr, color); } /// <summary> /// A Fast Bresenham Type Algorithm For Drawing Ellipses http://homepage.smc.edu/kennedy_john/belipse.pdf /// Uses a different parameter representation than DrawEllipse(). /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="xc">The x-coordinate of the ellipses center.</param> /// <param name="yc">The y-coordinate of the ellipses center.</param> /// <param name="xr">The radius of the ellipse in x-direction.</param> /// <param name="yr">The radius of the ellipse in y-direction.</param> /// <param name="color">The color for the line.</param> internal static void DrawEllipseCentered(this WriteableBitmap bmp, int xc, int yc, int xr, int yr, Color color) { var col = ConvertColor(color); bmp.DrawEllipseCentered(xc, yc, xr, yr, col); } /// <summary> /// A Fast Bresenham Type Algorithm For Drawing Ellipses http://homepage.smc.edu/kennedy_john/belipse.pdf /// Uses a different parameter representation than DrawEllipse(). /// </summary> /// <param name="bmp">The WriteableBitmap.</param> /// <param name="xc">The x-coordinate of the ellipses center.</param> /// <param name="yc">The y-coordinate of the ellipses center.</param> /// <param name="xr">The radius of the ellipse in x-direction.</param> /// <param name="yr">The radius of the ellipse in y-direction.</param> /// <param name="color">The color for the line.</param> internal static void DrawEllipseCentered(this WriteableBitmap bmp, int xc, int yc, int xr, int yr, int color) { // Use refs for faster access (really important!) speeds up a lot! using (var context = bmp.GetBitmapContext()) { var pixels = context.Pixels; var w = context.Width; var h = context.Height; // Avoid endless loop if (xr < 1 || yr < 1) { return; } // Init vars int uh, lh, uy, ly, lx, rx; int x = xr; int y = 0; int xrSqTwo = (xr * xr) << 1; int yrSqTwo = (yr * yr) << 1; int xChg = yr * yr * (1 - (xr << 1)); int yChg = xr * xr; int err = 0; int xStopping = yrSqTwo * xr; int yStopping = 0; // Draw first set of points counter clockwise where tangent line slope > -1. while (xStopping >= yStopping) { // Draw 4 quadrant points at once uy = yc + y; // Upper half ly = yc - y; // Lower half if (uy < 0) uy = 0; // Clip if (uy >= h) uy = h - 1; // ... if (ly < 0) ly = 0; if (ly >= h) ly = h - 1; uh = uy * w; // Upper half lh = ly * w; // Lower half rx = xc + x; lx = xc - x; if (rx < 0) rx = 0; // Clip if (rx >= w) rx = w - 1; // ... if (lx < 0) lx = 0; if (lx >= w) lx = w - 1; pixels[rx + uh] = color; // Quadrant I (Actually an octant) pixels[lx + uh] = color; // Quadrant II pixels[lx + lh] = color; // Quadrant III pixels[rx + lh] = color; // Quadrant IV y++; yStopping += xrSqTwo; err += yChg; yChg += xrSqTwo; if ((xChg + (err << 1)) > 0) { x--; xStopping -= yrSqTwo; err += xChg; xChg += yrSqTwo; } } // ReInit vars x = 0; y = yr; uy = yc + y; // Upper half ly = yc - y; // Lower half if (uy < 0) uy = 0; // Clip if (uy >= h) uy = h - 1; // ... if (ly < 0) ly = 0; if (ly >= h) ly = h - 1; uh = uy * w; // Upper half lh = ly * w; // Lower half xChg = yr * yr; yChg = xr * xr * (1 - (yr << 1)); err = 0; xStopping = 0; yStopping = xrSqTwo * yr; // Draw second set of points clockwise where tangent line slope < -1. while (xStopping <= yStopping) { // Draw 4 quadrant points at once rx = xc + x; lx = xc - x; if (rx < 0) rx = 0; // Clip if (rx >= w) rx = w - 1; // ... if (lx < 0) lx = 0; if (lx >= w) lx = w - 1; pixels[rx + uh] = color; // Quadrant I (Actually an octant) pixels[lx + uh] = color; // Quadrant II pixels[lx + lh] = color; // Quadrant III pixels[rx + lh] = color; // Quadrant IV x++; xStopping += yrSqTwo; err += xChg; xChg += yrSqTwo; if ((yChg + (err << 1)) > 0) { y--; uy = yc + y; // Upper half ly = yc - y; // Lower half if (uy < 0) uy = 0; // Clip if (uy >= h) uy = h - 1; // ... if (ly < 0) ly = 0; if (ly >= h) ly = h - 1; uh = uy * w; // Upper half lh = ly * w; // Lower half yStopping -= xrSqTwo; err += yChg; yChg += xrSqTwo; } } } } #endregion #endregion #endregion } }