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* UITreeView: 增加水平滚动条

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Sunny 2022-04-01 15:04:38 +08:00
parent 8f34889655
commit 83ed1fe1c5
5 changed files with 133 additions and 21 deletions
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BIN
Bin/net40/SunnyUI.dll
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10
SunnyUI/Common/UControl.cs
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@ -43,6 +43,16 @@ namespace Sunny.UI
return timer;
}
public static bool IsNull(this Control ctrl)
{
return ctrl == null;
}
public static bool IsValid(this Control ctrl)
{
return ctrl != null;
}
public static Rectangle ScreenRectangle(this Control ctrl)
{
return ctrl.RectangleToScreen(ctrl.ClientRectangle);

28
SunnyUI/Common/UScrollBarInfo.cs
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@ -65,6 +65,15 @@ namespace Sunny.UI
return si;
}
public static SCROLLINFO GetHorInfo(IntPtr handle)
{
SCROLLINFO si = new SCROLLINFO();
si.cbSize = Marshal.SizeOf(si);
si.fMask = SIF_DISABLENOSCROLL | SIF_ALL;
User.GetScrollInfo(handle, User.SB_HORZ, ref si);
return si;
}
/// <summary>
/// 设置控件滚动条滚动值
/// </summary>
@ -78,6 +87,19 @@ namespace Sunny.UI
User.PostMessage(handle, User.WM_VSCROLL, MakeLong(User.SB_THUMBTRACK, highPart: (short)info.nPos), 0);
}
/// <summary>
/// 设置控件滚动条滚动值
/// </summary>
/// <param name="handle">控件句柄</param>
/// <param name="value">滚动值</param>
public static void SetHorScrollValue(IntPtr handle, int value)
{
SCROLLINFO info = GetHorInfo(handle);
info.nPos = value;
User.SetScrollInfo(handle, User.SB_HORZ, ref info, true);
User.PostMessage(handle, User.WM_HSCROLL, MakeLong(User.SB_THUMBTRACK, highPart: (short)info.nPos), 0);
}
/// <summary>
/// 控件向上滚动一个单位
/// </summary>
@ -101,5 +123,11 @@ namespace Sunny.UI
if (!ctrl.IsHandleCreated) return false;
return (Sunny.UI.Win32.User.GetWindowLong(ctrl.Handle, User.GWL_STYLE) & User.WS_VSCROLL) != 0;
}
public static bool IsHorizontalScrollBarVisible(Control ctrl)
{
if (!ctrl.IsHandleCreated) return false;
return (Sunny.UI.Win32.User.GetWindowLong(ctrl.Handle, User.GWL_STYLE) & User.WS_HSCROLL) != 0;
}
}
}

8
SunnyUI/Controls/UIHorScrollBar.cs
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@ -273,7 +273,7 @@ namespace Sunny.UI
{
isScrollUp = up;
largeChange = large;
timer.Start();
//timer.Start();
}
private void StopScroll()
@ -297,7 +297,7 @@ namespace Sunny.UI
if (Value > 0)
{
left_state = DrawItemState.Selected;
ScrollLeft(false);
ScrollLeft(true);
StartScroll(true, false);
}
break;
@ -312,7 +312,7 @@ namespace Sunny.UI
if (Value < Maximum)
{
right_state = DrawItemState.Selected;
ScrollRight(false);
ScrollRight(true);
StartScroll(false, false);
}
break;
@ -331,7 +331,7 @@ namespace Sunny.UI
case 5:
if (Value < Maximum)
{
ScrollRight(false);
ScrollRight(true);
if (IsPress)
{
StartScroll(false, true);

108
SunnyUI/Controls/UITreeView.cs
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@ -23,6 +23,7 @@
* 2021-08-26: V3.0.6 CheckBoxes增加三态，感谢群友：笑口常开
* 2022-01-05: V3.0.9 TreeNodeStateSync: 节点点击时同步父节点和子节点的状态
* 2022-03-19: V3.1.1 重构主题配色
* 2022-04-01: V3.1.2 增加水平滚动条
******************************************************************************/
using System;
@ -43,8 +44,10 @@ namespace Sunny.UI
public sealed class UITreeView : UIPanel, IToolTip
{
private UIScrollBar Bar;
private UIHorScrollBar HBar;
private bool ScrollBarVisible;
private bool HScrollBarVisible;
private TreeViewEx view;
public UITreeView()
@ -52,6 +55,7 @@ namespace Sunny.UI
InitializeComponent();
SetStyleFlags(true, false);
ShowText = false;
view.HBar = HBar;
SetScrollInfo();
view.BeforeCheck += View_BeforeCheck;
@ -179,6 +183,14 @@ namespace Sunny.UI
Bar.HoverColor = uiColor.ButtonFillHoverColor;
Bar.PressColor = uiColor.ButtonFillPressColor;
}
if (HBar != null)
{
HBar.FillColor = uiColor.TreeViewBarFillColor;
HBar.ForeColor = uiColor.TreeViewBarForeColor;
HBar.HoverColor = uiColor.ButtonFillHoverColor;
HBar.PressColor = uiColor.ButtonFillPressColor;
}
}
protected override void AfterSetFillColor(Color color)
@ -194,6 +206,11 @@ namespace Sunny.UI
{
Bar.FillColor = color;
}
if (HBar != null)
{
HBar.FillColor = color;
}
}
protected override void AfterSetForeColor(Color color)
@ -535,11 +552,21 @@ namespace Sunny.UI
view.Width = Width - 4;
view.Height = Height - 4;
if (Bar == null) return;
Bar.Top = 2;
Bar.Left = Width - ScrollBarInfo.VerticalScrollBarWidth() - 2;
Bar.Width = ScrollBarInfo.VerticalScrollBarWidth();
Bar.Height = Height - 4;
if (Bar != null)
{
Bar.Top = 2;
Bar.Left = Width - ScrollBarInfo.VerticalScrollBarWidth() - 2;
Bar.Width = ScrollBarInfo.VerticalScrollBarWidth();
Bar.Height = Height - 4;
}
if (HBar != null)
{
HBar.Left = 2;
HBar.Top = Height - ScrollBarInfo.HorizontalScrollBarHeight() - 2;
HBar.Width = Width - (ScrollBarVisible ? ScrollBarInfo.VerticalScrollBarWidth() : 0) - 2 - 2;
HBar.Height = ScrollBarInfo.HorizontalScrollBarHeight();
}
}
protected override void OnFontChanged(EventArgs e)
@ -572,7 +599,7 @@ namespace Sunny.UI
public void SetScrollInfo()
{
if (view == null || Bar == null) return;
if (view == null || Bar == null || HBar == null) return;
if (Nodes.Count == 0)
{
@ -581,8 +608,10 @@ namespace Sunny.UI
}
var si = ScrollBarInfo.GetInfo(view.Handle);
var si1 = ScrollBarInfo.GetHorInfo(view.Handle);
SetPos();
Bar.Maximum = si.ScrollMax;
Bar.Visible = si.ScrollMax > 0 && si.nMax > 0 && si.nPage > 0;
Bar.Value = si.nPos;
@ -593,12 +622,24 @@ namespace Sunny.UI
ScrollBarVisible = Bar.Visible;
Invalidate();
}
HBar.Maximum = si1.ScrollMax;
HBar.Visible = si1.ScrollMax > 0 && si1.nMax > 0 && si1.nPage > 0;
HBar.Value = si1.nPos;
HBar.BringToFront();
if (HScrollBarVisible != HBar.Visible)
{
HScrollBarVisible = HBar.Visible;
Invalidate();
}
}
private void InitializeComponent()
{
view = new TreeViewEx();
Bar = new UIScrollBar();
HBar = new UIHorScrollBar();
SuspendLayout();
//
// view
@ -630,9 +671,22 @@ namespace Sunny.UI
Bar.Visible = false;
Bar.ValueChanged += Bar_ValueChanged;
//
// HBar
//
HBar.Font = new Font("微软雅黑", 12F);
HBar.Location = new Point(247, 3);
HBar.Name = "HBar";
HBar.Size = new Size(173, 19);
HBar.Style = UIStyle.Custom;
HBar.StyleCustomMode = true;
HBar.TabIndex = 3;
HBar.Visible = false;
HBar.ValueChanged += HBar_ValueChanged;
//
// UITreeViewEx
//
Controls.Add(Bar);
Controls.Add(HBar);
Controls.Add(view);
FillColor = Color.White;
Style = UIStyle.Custom;
@ -644,6 +698,12 @@ namespace Sunny.UI
ScrollBarInfo.SetScrollValue(view.Handle, Bar.Value);
}
private void HBar_ValueChanged(object sender, EventArgs e)
{
ScrollBarInfo.SetHorScrollValue(view.Handle, HBar.Value);
//view.Invalidate();
}
private void view_AfterExpand(object sender, TreeViewEventArgs e)
{
SetScrollInfo();
@ -666,6 +726,8 @@ namespace Sunny.UI
internal class TreeViewEx : TreeView
{
public UIHorScrollBar HBar;
private TreeNode CurrentNode;
private bool showLines;
@ -757,6 +819,7 @@ namespace Sunny.UI
{
DicNodeStatus.Add(e.Node.GetHashCode(), false);
}
if (CheckBoxes)
{
if (TreeNodeStateSync && e.Node.Parent != null && DicNodeStatus.ContainsKey(e.Node.Parent.GetHashCode()) && !DicNodeStatus[e.Node.Parent.GetHashCode()])
@ -764,7 +827,11 @@ namespace Sunny.UI
SetParentNodeCheckedState(e.Node);
}
}
if (BorderStyle == BorderStyle.Fixed3D) BorderStyle = BorderStyle.FixedSingle;
if (BorderStyle == BorderStyle.Fixed3D)
{
BorderStyle = BorderStyle.FixedSingle;
}
if (e.Node == null || e.Node.Bounds.Width <= 0 && e.Node.Bounds.Height <= 0 && e.Node.Bounds.X <= 0 && e.Node.Bounds.Y <= 0)
{
@ -772,9 +839,13 @@ namespace Sunny.UI
}
else
{
int drawLeft;
if (!HBar.Visible)
drawLeft = e.Bounds.X + (e.Node.Level + 1) * Indent + 3;
else
drawLeft = -(int)(Width * HBar.Value * 1.0 / HBar.Maximum) + (e.Node.Level + 1) * Indent + 3;
var drawLeft = (e.Node.Level + 1) * Indent + 3;
var checkBoxLeft = (e.Node.Level + 1) * Indent + 1;
var checkBoxLeft = drawLeft - 2;
var imageLeft = drawLeft;
var haveImage = false;
var sf = e.Graphics.MeasureString(e.Node.Text, Font);
@ -785,8 +856,7 @@ namespace Sunny.UI
imageLeft += 16;
}
if (ImageList != null && ImageList.Images.Count > 0 && e.Node.ImageIndex >= 0 &&
e.Node.ImageIndex < ImageList.Images.Count)
if (ImageList != null && ImageList.Images.Count > 0 && e.Node.ImageIndex >= 0 && e.Node.ImageIndex < ImageList.Images.Count)
{
haveImage = true;
drawLeft += ImageList.ImageSize.Width + 6;
@ -834,8 +904,6 @@ namespace Sunny.UI
if (CheckBoxes)
{
if (!e.Node.Checked)
{
e.Graphics.DrawRectangle(checkboxColor,
@ -872,7 +940,11 @@ namespace Sunny.UI
}
var lineY = e.Bounds.Y + e.Node.Bounds.Height / 2 - 1;
var lineX = 3 + e.Node.Level * Indent + 9;
int lineX;
if (!HBar.Visible)
lineX = 3 + e.Node.Level * Indent + 9;
else
lineX = -(int)(Width * HBar.Value * 1.0 / HBar.Maximum) + 3 + e.Node.Level * Indent + 9;
if (ShowLinesEx)
{
@ -926,7 +998,11 @@ namespace Sunny.UI
}
}
lineX = 3 + e.Node.Level * Indent + 9;
if (!HBar.Visible)
lineX = 3 + e.Node.Level * Indent + 9;
else
lineX = -(int)(Width * HBar.Value * 1.0 / HBar.Maximum) + 3 + e.Node.Level * Indent + 9;
//绘制左侧+号
if (ShowPlusMinus && e.Node.Nodes.Count > 0)
{
@ -981,7 +1057,6 @@ namespace Sunny.UI
private void SetParentNodeCheckedState(TreeNode currNode, bool ByMouse = false)
{
if (currNode.Parent == null)
return;
TreeNode parentNode = currNode.Parent; //获得当前节点的父节点
@ -1021,7 +1096,6 @@ namespace Sunny.UI
}
//选中节点之后，选中节点的所有子节点
private void SetChildNodeCheckedState(TreeNode currNode, bool state)
{