SharpDisplayManager: Server/FormEditObject.cs@4c706feaf706

     1 using System;

     2 using System.Collections.Generic;

     3 using System.ComponentModel;

     4 using System.Data;

     5 using System.Diagnostics;

     6 using System.Drawing;

     7 using System.Linq;

     8 using System.Text;

     9 using System.Threading.Tasks;

    10 using System.Windows.Forms;

    11 using SharpLib.Display;

    12 using SharpLib.Ear;

    13 using System.Reflection;

    14 using Microsoft.VisualBasic.CompilerServices;

    15 using SharpLib.Utils;

    17 namespace SharpDisplayManager

    18 {

    19     /// <summary>

    20     /// Object edit dialog form.

    21     /// </summary>

    22     public partial class FormEditObject<T> : Form where T : class

    23     {

    24         public T Object = null;

    26         public FormEditObject()

    27         {

    28             InitializeComponent();

    29         }

    31         /// <summary>

    32         ///

    33         /// </summary>

    34         /// <param name="sender"></param>

    35         /// <param name="e"></param>

    36         private void FormEditAction_Load(object sender, EventArgs e)

    37         {

    38             // Populate registered actions

    39             IEnumerable < Type > types = Reflection.GetConcreteClassesDerivedFrom<T>();

    40             foreach (Type type in types)

    41             {

    42                 ItemObjectType item = new ItemObjectType(type);

    43                 comboBoxActionType.Items.Add(item);

    44             }

    46             if (Object == null)

    47             {

    48                 // Creating new issue, select our first item

    49                 comboBoxActionType.SelectedIndex = 0;

    50             }

    51             else

    52             {

    53                 // Editing existing object

    54                 // Look up our item in our combobox

    55                 foreach (ItemObjectType item in comboBoxActionType.Items)

    56                 {

    57                     if (item.Type == Object.GetType())

    58                     {

    59                         comboBoxActionType.SelectedItem = item;

    60                     }

    61                 }

    62             }

    63         }

    65         private void buttonOk_Click(object sender, EventArgs e)

    66         {

    67             FetchPropertiesValue(Object);

    68         }

    70         private void FormEditAction_Validating(object sender, CancelEventArgs e)

    71         {

    73         }

    75         private void comboBoxActionType_SelectedIndexChanged(object sender, EventArgs e)

    76         {

    77             //Instantiate an action corresponding to our type

    78             Type actionType = ((ItemObjectType) comboBoxActionType.SelectedItem).Type;

    79             //Create another type of action only if needed

    80             if (Object == null || Object.GetType() != actionType)

    81             {

    82                 Object = (T)Activator.CreateInstance(actionType);

    83             }

    85             //Create input fields

    86             UpdateTableLayoutPanel(Object);

    87         }

    90         /// <summary>

    91         /// Get properties values from our generated input fields

    92         /// </summary>

    93         private void FetchPropertiesValue(T aAction)

    94         {

    95             int ctrlIndex = 0;

    96             foreach (PropertyInfo pi in aAction.GetType().GetProperties())

    97             {

    98                 AttributeObjectProperty[] attributes =

    99                     ((AttributeObjectProperty[]) pi.GetCustomAttributes(typeof(AttributeObjectProperty), true));

   100                 if (attributes.Length != 1)

   101                 {

   102                     continue;

   103                 }

   105                 AttributeObjectProperty attribute = attributes[0];

   107                 if (!IsPropertyTypeSupported(pi))

   108                 {

   109                     continue;

   110                 }

   112                 GetPropertyValueFromControl(iTableLayoutPanel.Controls[ctrlIndex+1], pi, aAction); //+1 otherwise we get the label

   114                 ctrlIndex+=2; //Jump over the label too

   115             }

   116         }

   118         /// <summary>

   119         /// Extend this function to support reading new types of properties.

   120         /// </summary>

   121         /// <param name="aAction"></param>

   122         private void GetPropertyValueFromControl(Control aControl, PropertyInfo aInfo, T aAction)

   123         {

   124             if (aInfo.PropertyType == typeof(int))

   125             {

   126                 NumericUpDown ctrl=(NumericUpDown)aControl;

   127                 aInfo.SetValue(aAction,(int)ctrl.Value);

   128             }

   129             else if (aInfo.PropertyType.IsEnum)

   130             {

   131                 // Instantiate our enum

   132                 object enumValue= Activator.CreateInstance(aInfo.PropertyType);

   133                 // Parse our enum from combo box

   134                 enumValue = Enum.Parse(aInfo.PropertyType,((ComboBox)aControl).SelectedItem.ToString());

   135                 //enumValue = ((ComboBox)aControl).SelectedValue;

   136                 // Set enum value

   137                 aInfo.SetValue(aAction, enumValue);

   138             }

   139             else if (aInfo.PropertyType == typeof(bool))

   140             {

   141                 CheckBox ctrl = (CheckBox)aControl;

   142                 aInfo.SetValue(aAction, ctrl.Checked);

   143             }

   144             else if (aInfo.PropertyType == typeof(string))

   145             {

   146                 TextBox ctrl = (TextBox)aControl;

   147                 aInfo.SetValue(aAction, ctrl.Text);

   148             }

   149             //TODO: add support for other types here

   150         }

   152         /// <summary>

   153         ///

   154         /// </summary>

   155         /// <param name="aInfo"></param>

   156         /// <param name="action"></param>

   157         private Control CreateControlForProperty(PropertyInfo aInfo, AttributeObjectProperty aAttribute, T aAction)

   158         {

   159             if (aInfo.PropertyType == typeof(int))

   160             {

   161                 //Integer properties are using numeric editor

   162                 NumericUpDown ctrl = new NumericUpDown();

   163                 ctrl.AutoSize = true;

   164                 ctrl.Minimum = Int32.Parse(aAttribute.Minimum);

   165                 ctrl.Maximum = Int32.Parse(aAttribute.Maximum);

   166                 ctrl.Increment = Int32.Parse(aAttribute.Increment);

   167                 ctrl.Value = (int)aInfo.GetValue(aAction);

   168                 return ctrl;

   169             }

   170             else if (aInfo.PropertyType.IsEnum)

   171             {

   172                 //Enum properties are using combo box

   173                 ComboBox ctrl = new ComboBox();

   174                 ctrl.AutoSize = true;

   175                 ctrl.Sorted = true;

   176                 ctrl.DropDownStyle = ComboBoxStyle.DropDownList;

   177                 //Data source is fine but it gives us duplicate entries for duplicated enum values

   178                 //ctrl.DataSource = Enum.GetValues(aInfo.PropertyType);

   180                 //Therefore we need to explicitly create our items

   181                 Size cbSize = new Size(0,0);

   182                 foreach (string name in aInfo.PropertyType.GetEnumNames())

   183                 {

   184                     ctrl.Items.Add(name.ToString());

   185                     Graphics g = this.CreateGraphics();

   186                     //Since combobox autosize would not work we need to get measure text ourselves

   187                     SizeF size=g.MeasureString(name.ToString(), ctrl.Font);

   188                     cbSize.Width = Math.Max(cbSize.Width,(int)size.Width);

   189                     cbSize.Height = Math.Max(cbSize.Height, (int)size.Height);

   190                 }

   192                 //Make sure our combobox is large enough

   193                 ctrl.MinimumSize = cbSize;

   195                 // Instantiate our enum

   196                 object enumValue = Activator.CreateInstance(aInfo.PropertyType);

   197                 enumValue = aInfo.GetValue(aAction);

   198                 //Set the current item

   199                 ctrl.SelectedItem = enumValue.ToString();

   201                 return ctrl;

   202             }

   203             else if (aInfo.PropertyType == typeof(bool))

   204             {

   205                 CheckBox ctrl = new CheckBox();

   206                 ctrl.AutoSize = true;

   207                 ctrl.Text = aAttribute.Description;

   208                 ctrl.Checked = (bool)aInfo.GetValue(aAction);

   209                 return ctrl;

   210             }

   211             else if (aInfo.PropertyType == typeof(string))

   212             {

   213                 TextBox ctrl = new TextBox();

   214                 ctrl.AutoSize = true;

   215                 ctrl.Text = (string)aInfo.GetValue(aAction);

   216                 return ctrl;

   217             }

   218             //TODO: add support for other control type here

   220             return null;

   221         }

   223         /// <summary>

   224         /// Don't forget to extend that one and adding types

   225         /// </summary>

   226         /// <returns></returns>

   227         private bool IsPropertyTypeSupported(PropertyInfo aInfo)

   228         {

   229             if (aInfo.PropertyType == typeof(int))

   230             {

   231                 return true;

   232             }

   233             else if (aInfo.PropertyType.IsEnum)

   234             {

   235                 return true;

   236             }

   237             else if (aInfo.PropertyType == typeof(bool))

   238             {

   239                 return true;

   240             }

   241             else if (aInfo.PropertyType == typeof(string))

   242             {

   243                 return true;

   244             }

   245             //TODO: add support for other type here

   247             return false;

   248         }

   250         /// <summary>

   251         /// Update our table layout.

   252         /// Will instantiated every field control as defined by our action.

   253         /// Fields must be specified by rows from the left.

   254         /// </summary>

   255         /// <param name="aLayout"></param>

   256         private void UpdateTableLayoutPanel(T aAction)

   257         {

   258             toolTip.RemoveAll();

   259             //Debug.Print("UpdateTableLayoutPanel")

   260             //First clean our current panel

   261             iTableLayoutPanel.Controls.Clear();

   262             iTableLayoutPanel.RowStyles.Clear();

   263             iTableLayoutPanel.ColumnStyles.Clear();

   264             iTableLayoutPanel.RowCount = 0;

   266             //We always want two columns: one for label and one for the field

   267             iTableLayoutPanel.ColumnCount = 2;

   268             iTableLayoutPanel.ColumnStyles.Add(new ColumnStyle(SizeType.AutoSize));

   269             iTableLayoutPanel.ColumnStyles.Add(new ColumnStyle(SizeType.AutoSize));

   272             if (aAction == null)

   273             {

   274                 //Just drop it

   275                 return;

   276             }

   278             //IEnumerable<PropertyInfo> properties = aAction.GetType().GetProperties().Where(

   279             //    prop => Attribute.IsDefined(prop, typeof(AttributeObjectProperty)));

   282             foreach (PropertyInfo pi in aAction.GetType().GetProperties())

   283             {

   284                 AttributeObjectProperty[] attributes = ((AttributeObjectProperty[])pi.GetCustomAttributes(typeof(AttributeObjectProperty), true));

   285                 if (attributes.Length != 1)

   286                 {

   287                     continue;

   288                 }

   290                 AttributeObjectProperty attribute = attributes[0];

   292                 //Before anything we need to check if that kind of property is supported by our UI

   293                 //Create the editor

   294                 Control ctrl = CreateControlForProperty(pi, attribute, aAction);

   295                 if (ctrl == null)

   296                 {

   297                     //Property type not supported

   298                     continue;

   299                 }

   301                 //Add a new row

   302                 iTableLayoutPanel.RowCount++;

   303                 iTableLayoutPanel.RowStyles.Add(new RowStyle(SizeType.AutoSize));

   304                 //Create the label

   305                 Label label = new Label();

   306                 label.AutoSize = true;

   307                 label.Dock = DockStyle.Fill;

   308                 label.TextAlign = ContentAlignment.MiddleCenter;

   309                 label.Text = attribute.Name;

   310                 toolTip.SetToolTip(label, attribute.Description);

   311                 iTableLayoutPanel.Controls.Add(label, 0, iTableLayoutPanel.RowCount-1);

   313                 //Add our editor to our form

   314                 iTableLayoutPanel.Controls.Add(ctrl, 1, iTableLayoutPanel.RowCount - 1);

   315                 //Add tooltip to editor too

   316                 toolTip.SetToolTip(ctrl, attribute.Description);

   318             }

   320         }

   322         private void buttonTest_Click(object sender, EventArgs e)

   323         {

   324             FetchPropertiesValue(Object);

   326             //If our object has a test method with no parameters just run it then

   327             MethodInfo info = Object.GetType().GetMethod("Test");

   328             if ( info != null && info.GetParameters().Length==0)

   329             {

   330                 info.Invoke(Object,null);

   331             }

   333         }

   334     }

   335 }

author	StephaneLenclud
	Fri, 12 Aug 2016 20:25:05 +0200
changeset 231	4c706feaf706
child 236	6ba20e02d04f
permissions	-rw-r--r--