C#开发PACS医学影像处理系统(三)：界面布局之工具栏

工具栏布局采用WPF中Grid作为容器，按钮采用自定义样式和图标，并采用Separator分割线：

XAML设计器代码：

其中  Style="{StaticResource ButtonStyle}"  按钮样式可以根据自身UI风格来使用自定义样式

<Button x:Name="BtnRotate"  Margin="5,0,0,0" Style="{StaticResource ButtonStyle}" HorizontalAlignment="Left" VerticalAlignment="Top"  Height="59"  Click="BtnRotate_Click"  >
                    <Button.Content>
                        <Grid>
                            <Image  Source="/PACS;component/Resources/旋转.png" Margin="-5,-1,-5,21" />
                            <TextBlock  Text="旋转" Foreground="White" Margin="0,32,0,0" />
                        </Grid>
                    </Button.Content>
                    <Button.ContextMenu>
                        <ContextMenu >
                            <MenuItem Header="自由旋转 (Ctrl X)" Click="MyRotate_Click" >
                                <MenuItem.Icon>
                                    <ImageBrush ImageSource="/PACS;component/Resources/自由旋转.png"/>
                                </MenuItem.Icon>
                            </MenuItem>
                            <MenuItem Header="角度回零"  Click="RotateClear_Click">
                                <MenuItem.Icon>
                                    <ImageBrush ImageSource="/PACS;component/Resources/角度归零.png"/>
                                </MenuItem.Icon>
                            </MenuItem>
                            <MenuItem Header="右旋转90°"  Click="RotateRight90_Click">
                                <MenuItem.Icon>
                                    <ImageBrush ImageSource="/PACS;component/Resources/右旋转90.png"/>
                                </MenuItem.Icon>
                            </MenuItem>
                            <MenuItem Header="左旋转90°" Click="RotateLeft90_Click">
                                <MenuItem.Icon>
                                    <ImageBrush ImageSource="/PACS;component/Resources/左旋转90.png"/>
                                </MenuItem.Icon>
                            </MenuItem>
                            <MenuItem Header="水平翻转"  Click="RotateHor_Click">
                                <MenuItem.Icon>
                                    <ImageBrush ImageSource="/PACS;component/Resources/水平翻转.png"/>
                                </MenuItem.Icon>
                            </MenuItem>
                            <MenuItem Header="垂直翻转" Click="RotateVer_Click">
                                <MenuItem.Icon>
                                    <ImageBrush ImageSource="/PACS;component/Resources/垂直翻转.png"/>
                                </MenuItem.Icon>
                            </MenuItem>
                        </ContextMenu>
                    </Button.ContextMenu>
                </Button>

需要注意的是，当我们点击按钮时弹出的菜单实际上是右键菜单ContextMenu，

所以要在按钮的点击事件中显示右键菜单并定位：

//设置关联按钮
BtnRotate.ContextMenu.PlacementTarget = BtnRotate;
//弹出时的位置在底部
BtnRotate.ContextMenu.Placement = PlacementMode.Bottom;
//显示菜单
BtnRotate.ContextMenu.IsOpen = true;