3rdpartylibs/fastreports.wpf/FastReport.WPF/Design/RibbonDesigner/RibbonStyleGroup.cs

using FastReport.Controls;
using FastReport.Utils;
using System;
using System.ComponentModel;
using System.Windows.Forms;

namespace FastReport.Design.RibbonDesigner
{
    internal class RibbonStyleGroup : RibbonGroup
    {
        #region Fields
        public ToolbarButton btnHighlight;
        public ToolbarStyleButton btnStyles;
        #endregion

        #region Private Methods
        private void UpdateControls()
        {
            btnHighlight.Enabled = Designer.SelectedTextObjects.Enabled;
        }
        
        private void btnHighlight_Click(object sender, EventArgs e)
        {
            Designer.SelectedTextObjects.InvokeHighlightEditor();
        }

        #endregion

        #region Public Methods
        public override void SelectionChanged()
        {
            base.SelectionChanged();
            Throttle.Execute(UpdateControls);
        }

        public override void UpdateContent()
        {
            base.UpdateContent();
            Throttle.Execute(UpdateControls);
        }

        public override void Localize()
        {
            base.Localize();
            Text = Res.Get("Designer,Toolbar,Style");

            SetItemText(btnHighlight, Res.Get("Designer,Toolbar,Text,Highlight"));
            SetItemText(btnStyles, Res.Get("Designer,Menu,Report,Styles"));
        }

        public override void UpdateDpiDependencies()
        {
            if (State == GroupState.Collapsed)
                return;

            base.UpdateDpiDependencies();
            btnHighlight.Image = Designer.GetImage("Ribbon.Highlight.png");
            btnStyles.Image = Designer.GetImage("Ribbon.Styles.png");
        }

        #endregion

        public RibbonStyleGroup(Designer designer) : base(designer)
        {
            Name = "EditGroup";
            CollapsedImageName = "Ribbon.Styles.png";

            btnHighlight = new ToolbarButton("btnStyleHighlight", 5, btnHighlight_Click);
            btnHighlight.MakeBig();
            btnStyles = new ToolbarStyleButton(designer);
            btnStyles.MakeBig();

            Panel.AddItems(btnHighlight, btnStyles);

            Localize();
            UpdateDpiDependencies();
        }
    }
    
    internal class ToolbarStyleButton : ToolStripSplitButton, IToolbarItem
    {
        public Designer Designer { get; }
        public bool BeginGroup { get; set; }

        private void btnStyles_DropDownOpening(object sender, CancelEventArgs e)
        {
            if (!Designer.SelectedReportComponents.Enabled)
            {
                e.Cancel = true;
                return;
            }

            var lb = new StyleListBox() { BorderStyle = BorderStyle.None };
            lb.Styles = Designer.ActiveReport.Styles;
            lb.Style = Designer.SelectedReportComponents.First.Style;

            lb.StyleSelected += (s, e) =>
            {
                DropDown.Close();
                Designer.SelectedReportComponents.SetStyle(lb.Style);
            };

            DropDown.Items.Clear();
            DropDown.Items.Add(new ToolStripControlHost(lb));
            lb.ItemHeight = Designer.LogicalToDevice(30);
            lb.Size = Designer.LogicalToDevice(new System.Drawing.Size(150, 300));
        }

        public ToolbarStyleButton(Designer designer)
        {
            Designer = designer;
            DropDown = new ToolStripDropDown();
            DropDown.Opening += btnStyles_DropDownOpening;
            DropDown.Opened += (s, e) =>
            {
                OnDropDownOpened(e);
                IsDropDownOpen = true;
            };
            DropDown.Closed += (s, e) =>
            {
                OnDropDownClosed(e);
                IsDropDownOpen = false;
            };

            ButtonClick += (s, e) => Designer.cmdReportStyles.Invoke(this, e);
        }
    }
}