257 lines
9.2 KiB
VB.net
257 lines
9.2 KiB
VB.net
Imports DevExpress.XtraEditors.Repository
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Imports DevExpress.XtraVerticalGrid
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Imports EDMI_ClientSuite.ClassControlUtils
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Imports EDMI_ClientSuite.ControlProperties
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Public Class frmEntityDesigner
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Private _IsMouseDown As Boolean = False
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Private _IsMouseMoving As Boolean = False
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Private _BeginPosition As Point = Nothing
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Private _EndPosition As Point = Nothing
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Private _LastCursorPosition As Point = Nothing
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Private _CurrentControl As Control = Nothing
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Private _ControlBuilder As ClassControlBuilder = Nothing
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Private _DragDropButtonList As New List(Of Button)
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Private Sub frmEntityDesigner_Load(sender As Object, e As EventArgs) Handles Me.Load
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' Assign Control Types to DragDrop Buttons
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btnLabel.Tag = ControlType.Label
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btnTextbox.Tag = ControlType.TextBox
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btnCombobox.Tag = ControlType.Combobox
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' Add Default Editors for certain datatypes in the PropertyGrid
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Dim oColorEditor = New RepositoryItemColorEdit()
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Dim oBooleanEditor = New RepositoryItemCheckEdit()
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PropertyGridMain.DefaultEditors.Add(GetType(Color), oColorEditor)
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PropertyGridMain.DefaultEditors.Add(GetType(Boolean), oBooleanEditor)
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' Create the control builder
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_ControlBuilder = New ClassControlBuilder(DesignMode:=True)
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' Create a list of all DragDrop buttons
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_DragDropButtonList.Add(btnLabel)
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_DragDropButtonList.Add(btnTextbox)
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_DragDropButtonList.Add(btnCombobox)
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' Add EventHandlers for each button
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For Each oButton As Button In _DragDropButtonList
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AddHandler oButton.MouseDown, AddressOf DragDropButton_MouseDown
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AddHandler oButton.MouseMove, AddressOf DragDropButton_MouseMove
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Next
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End Sub
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#Region "Control Buttons Events"
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Private Sub DragDropButton_MouseDown(sender As Object, e As MouseEventArgs)
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_IsMouseDown = True
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End Sub
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Private Sub DragDropButton_MouseMove(sender As Button, e As MouseEventArgs)
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If _IsMouseDown Then
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Dim oButton = sender
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Dim oType As ControlType = oButton.Tag
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oButton.DoDragDrop(oType.ToString, DragDropEffects.Copy)
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End If
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End Sub
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Private Sub SnapPanelMain_DragEnter(sender As Object, e As DragEventArgs) Handles PanelMain.DragEnter
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If (e.Data.GetDataPresent(DataFormats.Text)) Then
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e.Effect = DragDropEffects.Copy
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Else
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e.Effect = DragDropEffects.None
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End If
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End Sub
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Private Sub SnapPanelMain_DragDrop(sender As Object, e As DragEventArgs) Handles PanelMain.DragDrop
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Dim data As String = e.Data.GetData(DataFormats.Text)
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Dim type = ClassUtils.ToEnum(Of ClassControlUtils.ControlType)(data)
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HandleDragDrop(type)
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End Sub
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#End Region
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#Region "Control Events"
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Private Sub Control_MouseDown(sender As Control, e As MouseEventArgs)
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If e.Button = MouseButtons.Left Then
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_CurrentControl = sender
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_BeginPosition = e.Location
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' Set the mode flag to signal the MouseMove event handler that it
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' needs to now calculate new positions for our control
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_IsMouseMoving = True
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End If
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End Sub
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Private Sub Control_MouseMove(sender As Object, e As MouseEventArgs)
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If _CurrentControl Is Nothing Or Not _IsMouseMoving Then
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Exit Sub
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End If
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Cursor = Cursors.Hand
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Dim oCursorPosition As Point = PanelMain.PointToClient(Cursor.Position)
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Dim oNewPosition As New Point(oCursorPosition.X - _BeginPosition.X, oCursorPosition.Y - _BeginPosition.Y)
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' If control will be moved out the of bounds of the panel at TOP/LEFT side, exit.
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If oNewPosition.X < 0 Or oNewPosition.Y < 0 Then
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Exit Sub
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End If
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_CurrentControl.Location = oNewPosition
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End Sub
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Private Sub Control_MouseUp(sender As Object, e As MouseEventArgs)
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If Not _IsMouseMoving Then
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Exit Sub
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End If
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_IsMouseMoving = False
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_EndPosition = e.Location
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Cursor = Cursors.Default
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End Sub
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Private Sub Control_MouseClick(sender As Control, e As MouseEventArgs)
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TabControlMain.SelectedTabPage = TabPageProperties
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HandleLoadProperties(sender)
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End Sub
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Private Sub Control_MouseEnter(sender As Control, e As EventArgs)
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Cursor = Cursors.Hand
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End Sub
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Private Sub Control_MouseLeave(sender As Control, e As EventArgs)
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Cursor = Cursors.Default
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End Sub
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Private Sub SetEventHandlers(Control As Control)
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AddHandler Control.MouseDown, AddressOf Control_MouseDown
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AddHandler Control.MouseMove, AddressOf Control_MouseMove
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AddHandler Control.MouseUp, AddressOf Control_MouseUp
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AddHandler Control.MouseClick, AddressOf Control_MouseClick
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AddHandler Control.MouseEnter, AddressOf Control_MouseEnter
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AddHandler Control.MouseLeave, AddressOf Control_MouseLeave
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End Sub
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#End Region
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Private Sub HandleLoadProperties(Control As Control)
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Dim oMetadata As ControlMetadata = Control.Tag
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Dim oType = oMetadata.Type
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Dim oProps As ClassBaseProperties = Nothing
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Select Case oType
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Case ControlType.Label
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oProps = New ClassLabelProperties With {
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.Id = oMetadata.Id,
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.Name = Control.Name,
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.Type = oType,
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.Location = Control.Location,
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.Size = Control.Size,
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.Font = Control.Font,
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.Color = Control.ForeColor,
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.Caption = Control.Text
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}
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Case ControlType.TextBox
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oProps = New ClassTextboxProperties With {
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.Id = oMetadata.Id,
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.Name = Control.Name,
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.Type = oType,
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.Location = Control.Location,
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.Size = Control.Size,
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.Font = Control.Font,
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.Color = ForeColor,
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.IsReadOnly = False,
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.IsRequired = False,
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.Multiline = False,
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.TabIndex = 0,
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.TabStop = 1,
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.DefaultValue = ""
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}
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Case ControlType.Combobox
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oProps = New ClassComboboxProperties() With {
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.Id = oMetadata.Id,
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.Name = Control.Name,
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.Type = oType,
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.Location = Control.Location,
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.Size = Control.Size,
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.Font = Control.Font,
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.Color = ForeColor,
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.IsReadOnly = False,
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.IsRequired = False,
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.TabIndex = 0,
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.TabStop = 1,
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.DefaultValue = "",
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.StaticList = New StaticList()
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}
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Case Else
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Exit Sub
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End Select
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PropertyGridMain.SelectedObject = oProps
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End Sub
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Private Sub HandleDragDrop(type As ControlType)
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Dim oCursorPosition As Point = PanelMain.PointToClient(Cursor.Position)
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Dim oControl As Control = Nothing
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Select Case type
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Case ControlType.Label
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oControl = _ControlBuilder.CreateLabel()
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Case ControlType.TextBox
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oControl = _ControlBuilder.CreateTextbox()
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Case ControlType.Combobox
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oControl = _ControlBuilder.CreateCombobox()
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Case Else
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MsgBox($"Unknown Control Type {type.ToString}")
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Exit Sub
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End Select
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' Set Location to current cursor position
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oControl.Location = oCursorPosition
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' Attach Eventhandlers
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SetEventHandlers(oControl)
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' Add the control to the panel
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PanelMain.Controls.Add(oControl)
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End Sub
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Private Sub PropertyGridMain_RowChanged(sender As Object, e As DevExpress.XtraVerticalGrid.Events.RowChangedEventArgs) Handles PropertyGridMain.RowChanged
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If e.ChangeType <> RowChangeTypeEnum.Value Then
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Exit Sub
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End If
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Dim oPropertyName As String = e.Properties.FieldName
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Dim oPropertyValue = e.Properties.Value
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Select Case oPropertyName
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Case "Name"
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_CurrentControl.Name = oPropertyValue
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Case "Location"
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_CurrentControl.Location = oPropertyValue
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Case "X"
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_CurrentControl.Location = New Point(oPropertyValue, _CurrentControl.Location.Y)
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Case "Y"
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_CurrentControl.Location = New Point(_CurrentControl.Location.X, oPropertyValue)
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Case "Size"
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_CurrentControl.Size = oPropertyValue
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Case "Width"
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_CurrentControl.Size = New Size(oPropertyValue, _CurrentControl.Height)
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Case "Height"
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_CurrentControl.Size = New Size(_CurrentControl.Width, oPropertyValue)
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Case "Font"
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_CurrentControl.Font = oPropertyValue
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Case "Color"
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_CurrentControl.ForeColor = oPropertyValue
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Case "Caption"
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If TypeOf _CurrentControl Is Label Then
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_CurrentControl.Text = oPropertyValue
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End If
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End Select
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End Sub
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End Class |