protected virtual void OnButtonSelected(ButtonSelectedEventArgs e)
{
EventHandler <ButtonSelectedEventArgs> handler = ButtonSelected;
if (handler != null)
{
handler(this, e);
}
}
/*
* Respond to one of the matrix buttons being clicked.
*/
private void btnMatrix_Click(object sender, EventArgs e)
{
if (selectedObj != null)
{
// Set the colour of the currently selected button back to normal.
int idx = displayedObjs.FindIndex(o => o == selectedObj);
if (idx != -1)
{
SetButtonColor(myButtons[idx], selectedObj.GetNormalColor());
}
}
// Set the colour of the newly selected button to its highlighted colour.
int idxButtonSelected = myButtons.IndexOf((Button)sender);
selectedObj = displayedObjs[idxButtonSelected];
SetButtonColor(myButtons[idxButtonSelected], selectedObj.GetSelectedColor());
// Raise ButtonSelected event
var args = new ButtonSelectedEventArgs();
args.obj = selectedObj;
OnButtonSelected(args);
}
private void RefreshButtonMatrix()
{
int numberOfButtons = 0;
idxFirstButtonNextPage = 0;
displayedObjs = new List <MatrixObject>();
if (autoDeselect)
{
// Effectively de-select current selection
selectedObj = null;
}
for (int i = idxFirstButtonCurrPage; i < myList.Count; i++)
{
if (!myList[i].MatchesFilter())
{
continue;
}
if (numberOfButtons >= numButtons)
{
idxFirstButtonNextPage = i;
break;
}
myButtons[numberOfButtons].Text = myList[i].ToString();
myButtons[numberOfButtons].Visible = true;
Color col;
if (myList[i] == selectedObj)
{
col = myList[i].GetSelectedColor();
}
else
{
col = myList[i].GetNormalColor();
}
SetButtonColor(myButtons[numberOfButtons], col);
displayedObjs.Add(myList[i]);
numberOfButtons++;
}
for (int i = numberOfButtons; i < numButtons; i++)
{
myButtons[i].Visible = false;
}
// Set visibility of Page Up and Down buttons depending on whether there's next/previous pages to display
btnPageDown.Visible = idxFirstButtonNextPage > 0;
btnPageUp.Visible = idxFirstButtonCurrPage > 0;
var args = new ButtonSelectedEventArgs();
if (numberOfButtons == 1)
{
//Automatically select a button if it's the only one displayed
selectedObj = displayedObjs[0];
SetButtonColor(myButtons[0], selectedObj.GetSelectedColor());
args.obj = selectedObj;
OnButtonSelected(args);
}
}
