public void OnDragEnd()
{
// TODO Auto-generated method stub
MyAbsoluteLayout.LayoutParams startHandleParams = (MyAbsoluteLayout.LayoutParams)mStartSelectionHandle.LayoutParameters;
MyAbsoluteLayout.LayoutParams endHandleParams = (MyAbsoluteLayout.LayoutParams)mEndSelectionHandle.LayoutParameters;
float scale = GetDensityIndependentValue(Scale, mContext);
float startX = startHandleParams.X - ScrollX;
float startY = startHandleParams.Y - ScrollY;
float endX = endHandleParams.X - ScrollX;
float endY = endHandleParams.Y - ScrollY;
startX = GetDensityIndependentValue(startX, mContext) / scale;
startY = GetDensityIndependentValue(startY, mContext) / scale;
endX = GetDensityIndependentValue(endX, mContext) / scale;
endY = GetDensityIndependentValue(endY, mContext) / scale;
if (mLastTouchedSelectionHandle == SELECTION_START_HANDLE && startX > 0 && startY > 0)
{
string saveStartString = Java.Lang.String.Format(Locale.Us, "javascript: android.selection.setStartPos(%f, %f);", startX, startY);
LoadUrl(saveStartString);
}
if (mLastTouchedSelectionHandle == SELECTION_END_HANDLE && endX > 0 && endY > 0)
{
string saveEndString = Java.Lang.String.Format(Locale.Us, "javascript: android.selection.setEndPos(%f, %f);", endX, endY);
LoadUrl(saveEndString);
}
mDragging = false;
}
protected override void OnLayout(bool changed, int l, int t, int r, int b)
{
int count = ChildCount;
int paddingL = PaddingLeft;
int paddingT = PaddingTop;
for (int i = 0; i < count; i++)
{
View child = GetChildAt(i);
if (child.Visibility != ViewStates.Gone)
{
MyAbsoluteLayout.LayoutParams lp = (MyAbsoluteLayout.LayoutParams)child.LayoutParameters;
int childLeft = paddingL + lp.X;
int childTop = paddingT + lp.Y;
/*
* int childLeft = mPaddingLeft + lp.x;
* int childTop = mPaddingTop + lp.y;
*/
child.Layout(childLeft, childTop, childLeft + child.MeasuredWidth, childTop + child.MeasuredHeight);
}
}
}
protected override void OnMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
int count = ChildCount;
int maxHeight = 0;
int maxWidth = 0;
// Find out how big everyone wants to be
MeasureChildren(widthMeasureSpec, heightMeasureSpec);
// Find rightmost and bottom-most child
for (int i = 0; i < count; i++)
{
View child = GetChildAt(i);
if (child.Visibility != ViewStates.Gone)
{
int childRight;
int childBottom;
MyAbsoluteLayout.LayoutParams lp = (MyAbsoluteLayout.LayoutParams)child.LayoutParameters;
childRight = lp.X + child.MeasuredWidth;
childBottom = lp.Y + child.MeasuredHeight;
maxWidth = Math.Max(maxWidth, childRight);
maxHeight = Math.Max(maxHeight, childBottom);
}
}
// Account for padding too
maxWidth += PaddingLeft + PaddingRight;
maxHeight += PaddingTop + PaddingBottom;
/* original
* maxWidth += mPaddingLeft + mPaddingRight;
* maxHeight += mPaddingTop + mPaddingBottom;
*/
// Check against minimum height and width
maxHeight = Math.Max(maxHeight, SuggestedMinimumHeight);
maxWidth = Math.Max(maxWidth, SuggestedMinimumWidth);
SetMeasuredDimension(ResolveSize(maxWidth, widthMeasureSpec), ResolveSize(maxHeight, heightMeasureSpec));
}
protected void DrawSelectionHandleMessage(Message m)
{
MyAbsoluteLayout.LayoutParams startParams = (MyAbsoluteLayout.LayoutParams)mStartSelectionHandle.LayoutParameters;
startParams.X = (int)(mSelectionBounds.Left - mStartSelectionHandle.Drawable.IntrinsicWidth);
startParams.Y = (int)(mSelectionBounds.Top - mStartSelectionHandle.Drawable.IntrinsicHeight);
// Stay on screen.
startParams.X = (startParams.X < 0) ? 0 : startParams.X;
startParams.Y = (startParams.Y < 0) ? 0 : startParams.Y;
mStartSelectionHandle.LayoutParameters = startParams;
MyAbsoluteLayout.LayoutParams endParams = (MyAbsoluteLayout.LayoutParams)mEndSelectionHandle.LayoutParameters;
endParams.X = (int)mSelectionBounds.Right;
endParams.Y = (int)mSelectionBounds.Bottom;
// Stay on screen
endParams.X = (endParams.X < 0) ? 0 : endParams.X;
endParams.Y = (endParams.Y < 0) ? 0 : endParams.Y;
mEndSelectionHandle.LayoutParameters = endParams;
}
