kmpdfkit_demo/Demo/Examples/Compdfkit_Tools/Measure/MeasureControl.xaml.cs

using ComPDFKit.Measure;
using Compdfkit_Tools.Helper;
using Compdfkit_Tools.PDFControl;
using ComPDFKitViewer;
using ComPDFKitViewer.AnnotEvent;
using ComPDFKitViewer.PdfViewer;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;



namespace Compdfkit_Tools.Measure
{
    /// <summary>
    /// MeasureControl.xaml 的交互逻辑
    /// </summary>
    public partial class MeasureControl : UserControl
    {
        public MeasurePropertyControl measurePropertyControl = new MeasurePropertyControl();
        private CPDFDisplaySettingsControl displaySettingsControl;

        private PDFViewControl PdfViewControl = new PDFViewControl();

        private PanelState panelState = PanelState.GetInstance();

        public event EventHandler ExpandEvent;

        public MeasureControl()
        {
            InitializeComponent();
            MeasureSetting.MeasureChanged += MeasureSetting_MeasureChanged;
        }

        private void MeasureSetting_MeasureChanged(object sender, MeasureEventArgs e)
        {
            InfoPanel.SetMeasureInfo(e);
        }
        #region Init PDFViewer

        public void InitWithPDFViewer(PDFViewControl pdfViewControl, CPDFViewer pdfViewer)
        {
            PdfViewControl = pdfViewControl;
            PdfViewControl.PDFView = pdfViewer;
            PDFMeasureTool.InitWithPDFViewer(pdfViewer, measurePropertyControl, this);
            FloatPageTool.InitWithPDFViewer(pdfViewer);
            PDFGrid.Child = PdfViewControl;

            panelState.PropertyChanged -= PanelState_PropertyChanged;
            panelState.PropertyChanged += PanelState_PropertyChanged;
            pdfViewControl.PDFView.AnnotActiveHandler -= PDFView_AnnotActiveHandler;
            pdfViewControl.PDFView.AnnotActiveHandler += PDFView_AnnotActiveHandler;
            pdfViewControl.PDFView.AnnotCommandHandler -= PDFView_AnnotCommandHandler;
            pdfViewControl.PDFView.AnnotCommandHandler += PDFView_AnnotCommandHandler;
            SetInfoPanelVisble(false, false);
        }

        private void PDFView_AnnotCommandHandler(object sender, AnnotCommandArgs e)
        {
            switch (e.CommandType)
            {
                case CommandType.Context:
                    if (e.CommandTarget == TargetType.Annot && e.PressOnAnnot)
                    {
                        e.Handle = true;
                        e.PopupMenu = new ContextMenu();
                        e.PopupMenu.Items.Add(new MenuItem() { Header = "Delete", Command = ApplicationCommands.Delete, CommandTarget = (UIElement)sender });
                        MenuItem menuItem = new MenuItem();
                        menuItem.Header = "Measure Setting";
                        menuItem.Click += (item, param) =>
                        {
                            SettingPanel.UpdateArgsList = e.AnnotEventArgsList;
                            SettingPanel.BindMeasureSetting();
                            SetInfoPanelVisble(false, true);
                        };

                        MenuItem propertyItem = new MenuItem();
                        propertyItem.Header = "Property Setting";
                        propertyItem.Click += (item, param) =>
                        {
                            ExpandEvent?.Invoke(this, new EventArgs());
                        };
                        e.PopupMenu.Items.Add(menuItem);
                        e.PopupMenu.Items.Add(propertyItem);
                    }
                    break;
             
                case CommandType.Delete:
                    e.DoCommand();
                    break;
                default:
                    break;
            }
        }



        private void PDFView_AnnotActiveHandler(object sender, AnnotAttribEvent e)
        {
            if (e == null || e.IsAnnotCreateReset)
            {
                return;
            }
            else
            {
                switch (e.GetAnnotTypes())
                {
                    case AnnotArgsType.LineMeasure:
                        LineMeasureArgs LineArgs = e.GetAnnotHandlerEventArgs(AnnotArgsType.LineMeasure).First() as LineMeasureArgs;
                        panelState.RightPanel = PanelState.RightPanelState.PropertyPanel;
                        measurePropertyControl.SetPropertyForMeasureCreate(LineArgs, e);
                        break;
                    case AnnotArgsType.PolygonMeasure:
                        PolygonMeasureArgs polygonArgs = e.GetAnnotHandlerEventArgs(AnnotArgsType.PolygonMeasure).First() as PolygonMeasureArgs;
                        panelState.RightPanel = PanelState.RightPanelState.PropertyPanel;
                        measurePropertyControl.SetPropertyForMeasureCreate(polygonArgs, e);
                        break;

                    case AnnotArgsType.PolyLineMeasure:
                        PolyLineMeasureArgs polyLineArgs = e.GetAnnotHandlerEventArgs(AnnotArgsType.PolyLineMeasure).First() as PolyLineMeasureArgs;
                        panelState.RightPanel = PanelState.RightPanelState.PropertyPanel;
                        measurePropertyControl.SetPropertyForMeasureCreate(polyLineArgs, e);
                        break;
                }
            }
        }

        public void SetSettingsControl(CPDFDisplaySettingsControl cPDFDisplaySettingsControl)
        {
            displaySettingsControl = cPDFDisplaySettingsControl;
        }

        public void ClearAllToolState()
        {
            PDFMeasureTool.ClearAllToolState();
        }
        public void ClearViewerControl()
        {
            PDFGrid.Child = null;
            BotaContainer.Child = null;
            PropertyContainer.Child = null;
            displaySettingsControl = null;
        }

        private void PanelState_PropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            if (e.PropertyName == nameof(PanelState.IsLeftPanelExpand))
            {
                ExpandLeftPanel(panelState.IsLeftPanelExpand);
            }
            else if (e.PropertyName == nameof(PanelState.RightPanel))
            {
                if (panelState.RightPanel == PanelState.RightPanelState.PropertyPanel)
                {
                    ExpandRightPropertyPanel(measurePropertyControl, Visibility.Visible);
                }
                else if (panelState.RightPanel == PanelState.RightPanelState.ViewSettings)
                {
                    ExpandRightPropertyPanel(displaySettingsControl, Visibility.Visible);
                }
                else
                {
                    ExpandRightPropertyPanel(null, Visibility.Collapsed);
                }
            }
        }

        #endregion

        #region Expand and collapse Panel

        public void ExpandRightPropertyPanel(Visibility visible)
        {
            ExpandRightPropertyPanel(measurePropertyControl, visible);
        }

        public void ExpandNullRightPropertyPanel(Visibility visible)
        {
            ExpandRightPropertyPanel(null, visible);
        }

        public void ExpandViewSettings(Visibility visible)
        {
            SetViewSettings(displaySettingsControl, visible);
        }

        private void ExpandRightPropertyPanel(UIElement propertytPanel, Visibility visible)
        {
            PropertyContainer.Width = 260;
            PropertyContainer.Child = propertytPanel;
            PropertyContainer.Visibility = visible;
        }

        private void SetViewSettings(CPDFDisplaySettingsControl displaySettingsControl, Visibility visibility)
        {
            PropertyContainer.Child = displaySettingsControl;
            PropertyContainer.Visibility = visibility;
        }

        public void ExpandLeftPanel(bool isExpand)
        {
            BotaContainer.Visibility = isExpand ? Visibility.Visible : Visibility.Collapsed;
            Splitter.Visibility = isExpand ? Visibility.Visible : Visibility.Collapsed;
            if (isExpand)
            {
                BodyGrid.ColumnDefinitions[0].Width = new GridLength(320);
                BodyGrid.ColumnDefinitions[1].Width = new GridLength(15);
            }
            else
            {
                BodyGrid.ColumnDefinitions[0].Width = new GridLength(0);
                BodyGrid.ColumnDefinitions[1].Width = new GridLength(0);
            }
        }

        #endregion

        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {

        }

        private void MeasureInfoPanel_SettingClick(object sender, EventArgs e)
        {
            SettingPanel.ReturnToInfoPanel = true;
            SetInfoPanelVisble(false, true);
            SettingPanel.BindMeasureSetting();
        }

        private void SettingPanel_CancelEvent(object sender, EventArgs e)
        {
            SetInfoPanelVisble(SettingPanel.ReturnToInfoPanel, false);
        }

        private void SettingPanel_DoneEvent(object sender, EventArgs e)
        {
            SetInfoPanelVisble(SettingPanel.ReturnToInfoPanel, false);
        }

        public void SetInfoPanelVisble(bool measureInfo, bool measureSetting)
        {
            if(measureInfo)
            {
                InfoPanel.ClearMeasureInfo();
            }
            InfoPanel.Visibility = measureInfo ? Visibility.Visible : Visibility.Collapsed;
            SettingPanel.Visibility = measureSetting ? Visibility.Visible : Visibility.Collapsed;
        }

        public void SetMeasureInfoType(CPDFMeasureType measureType)
        {
            InfoPanel?.SetMeasureType(measureType);
        }
    }
}