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Add coloring feature to nodes (#468)
* Add coloring feature to nodes * Fix wording * Fix null reference when updating configuration when no connection is open Co-authored-by: Arnaud Tamaillon <arnaud.tamaillon@younited-credit.fr>
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212
src/ServiceBusExplorer/Controls/DataGridViewColorPickerColumn.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,212 @@ | ||
| using System; | ||
| using System.Windows.Forms; | ||
|
|
||
| namespace ServiceBusExplorer.Controls | ||
| { | ||
| using System.ComponentModel; | ||
| using System.Drawing; | ||
|
|
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| public class DataGridViewColorPickerColumn : DataGridViewColumn | ||
| { | ||
| public DataGridViewColorPickerColumn() | ||
| : base(new ColorCell()) | ||
| { | ||
| } | ||
|
|
||
| public override DataGridViewCell CellTemplate | ||
| { | ||
| get => base.CellTemplate; | ||
| set | ||
| { | ||
| if (value != null && | ||
| !value.GetType().IsAssignableFrom(typeof(ColorCell))) | ||
| { | ||
| throw new InvalidCastException("Must be a ColorCell"); | ||
| } | ||
| base.CellTemplate = value; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public class ColorCell : DataGridViewTextBoxCell | ||
| { | ||
| public override void InitializeEditingControl(int rowIndex, object | ||
| initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle) | ||
| { | ||
| base.InitializeEditingControl(rowIndex, initialFormattedValue, dataGridViewCellStyle); | ||
| if (!(DataGridView.EditingControl is ColorEditingControl colorPicker)) | ||
| { | ||
| return; | ||
| } | ||
| colorPicker.Value = (Color)Value; | ||
| } | ||
|
|
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| public override object ParseFormattedValue(object formattedValue, DataGridViewCellStyle cellStyle, TypeConverter formattedValueTypeConverter, TypeConverter valueTypeConverter) | ||
| { | ||
| return formattedValue; | ||
| } | ||
|
|
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| public override Type EditType => typeof(ColorEditingControl); | ||
|
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| public override Type ValueType => typeof(Color); | ||
|
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| public override object DefaultNewRowValue => Color.Empty; | ||
|
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| protected override void Paint(Graphics graphics, | ||
| Rectangle clipBounds, Rectangle cellBounds, int rowIndex, | ||
| DataGridViewElementStates elementState, object value, | ||
| object formattedValue, string errorText, | ||
| DataGridViewCellStyle cellStyle, | ||
| DataGridViewAdvancedBorderStyle advancedBorderStyle, | ||
| DataGridViewPaintParts paintParts) | ||
| { | ||
| paintParts &= ~DataGridViewPaintParts.Focus; | ||
| var actualColor = GetActualColor(value); | ||
| var colorText = actualColor?.Name ?? string.Empty; | ||
| var actualCellStyle = actualColor == null | ||
| ? cellStyle | ||
| : new DataGridViewCellStyle(cellStyle) | ||
| { | ||
| BackColor = actualColor.Value, | ||
| SelectionBackColor = actualColor.Value | ||
| }; | ||
| base.Paint(graphics, clipBounds, cellBounds, rowIndex, elementState, value, colorText, errorText, actualCellStyle, advancedBorderStyle, paintParts); | ||
| } | ||
|
|
||
| private static Color? GetActualColor(object value) | ||
| { | ||
| Color? actualColor; | ||
| try | ||
| { | ||
| actualColor = value.Equals(Color.Empty) ? (Color?) null : (Color) value; | ||
| } | ||
| catch (Exception) | ||
| { | ||
| actualColor = null; | ||
| } | ||
| return actualColor; | ||
| } | ||
| } | ||
|
|
||
| class ColorEditingControl : Button, IDataGridViewEditingControl | ||
| { | ||
| public Color Value | ||
| { | ||
| get => BackColor; | ||
| set | ||
| { | ||
| var actualColor = value.Equals(Color.Empty) ? (Color?) null : (Color)value; | ||
| if (actualColor.HasValue) | ||
| { | ||
| BackColor = actualColor.Value; | ||
| Text = actualColor.Value.Name; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public ColorEditingControl() | ||
| { | ||
| TextAlign = ContentAlignment.MiddleLeft; | ||
| Click += ColorEditingControl_Click; | ||
| } | ||
|
|
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| void ColorEditingControl_Click(object sender, EventArgs e) | ||
| { | ||
| var colorDialog = new ColorDialog(); | ||
| if (colorDialog.ShowDialog() == DialogResult.OK) | ||
| { | ||
| if (Value != colorDialog.Color) | ||
| { | ||
| Value = colorDialog.Color; | ||
| EditingControlValueChanged = true; | ||
| EditingControlDataGridView.NotifyCurrentCellDirty(true); | ||
| EditingControlDataGridView.EndEdit(); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #region Public Methods | ||
|
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| // Implements the IDataGridViewEditingControl.EditingControlFormattedValue | ||
| // property. | ||
| public object EditingControlFormattedValue | ||
| { | ||
| get => Value; | ||
| set | ||
| { | ||
| if (value != null) | ||
| { | ||
| Value = (Color) value; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // Implements the | ||
| // IDataGridViewEditingControl.GetEditingControlFormattedValue method. | ||
| public object GetEditingControlFormattedValue(DataGridViewDataErrorContexts context) | ||
| { | ||
| return EditingControlFormattedValue; | ||
| } | ||
|
|
||
| // Implements the | ||
| // IDataGridViewEditingControl.ApplyCellStyleToEditingControl method. | ||
| public void ApplyCellStyleToEditingControl(DataGridViewCellStyle dataGridViewCellStyle) | ||
| { | ||
| Font = dataGridViewCellStyle.Font; | ||
| } | ||
|
|
||
| // Implements the IDataGridViewEditingControl.EditingControlWantsInputKey | ||
| // method. | ||
| public bool EditingControlWantsInputKey(Keys key, bool dataGridViewWantsInputKey) | ||
| { | ||
| // Let the ColorPicker handle the keys listed. | ||
| switch (key & Keys.KeyCode) | ||
| { | ||
| case Keys.Left: | ||
| case Keys.Up: | ||
| case Keys.Down: | ||
| case Keys.Right: | ||
| case Keys.Home: | ||
| case Keys.End: | ||
| case Keys.PageDown: | ||
| case Keys.PageUp: | ||
| return true; | ||
| default: | ||
| return !dataGridViewWantsInputKey; | ||
| } | ||
| } | ||
|
|
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| // Implements the IDataGridViewEditingControl.PrepareEditingControlForEdit | ||
| // method. | ||
| public void PrepareEditingControlForEdit(bool selectAll) | ||
| { | ||
| // No preparation needs to be done. | ||
| } | ||
|
|
||
| #endregion | ||
|
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| #region Public Properties | ||
|
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| // Implements the IDataGridViewEditingControl.EditingControlRowIndex | ||
| // property. | ||
| public int EditingControlRowIndex { get; set; } | ||
|
|
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| // Implements the IDataGridViewEditingControl | ||
| // .RepositionEditingControlOnValueChange property. | ||
| public bool RepositionEditingControlOnValueChange => false; | ||
|
|
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| // Implements the IDataGridViewEditingControl | ||
| // .EditingControlDataGridView property. | ||
| public DataGridView EditingControlDataGridView { get; set; } | ||
|
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| // Implements the IDataGridViewEditingControl | ||
| // .EditingControlValueChanged property. | ||
| public bool EditingControlValueChanged { get; set; } | ||
|
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| // Implements the IDataGridViewEditingControl | ||
| // .EditingPanelCursor property. | ||
| public Cursor EditingPanelCursor => base.Cursor; | ||
|
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| #endregion | ||
| } | ||
| } |
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