// keyboard event handler
private void CaptureLabel_KeyDown(object sender, KeyEventArgs e)
{
// scorll up or down depending on key pressed
if (e.KeyCode == Keys.PageUp || e.KeyCode == Keys.PageDown)
{
// save all rectangles coordinates
saveCoordinates();
if (e.KeyCode == Keys.PageDown)
{
scrollDown();
}
if (e.KeyCode == Keys.PageUp)
{
scrollUp();
}
// if there are no values for current image set them to initial position
if (!isLoaded)
{
rectangles.resetCoordinates(rectSPostion[mode - Constants.faceElementsMode]);
}
// reset relevant fields
rectangles.resetFocusList();
someoneIsInFocus = false;
imagePanel.Refresh();
}
// paste previous picture rectangles to current picture
if (e.KeyCode == Keys.X && currentImageIndex >= 1)
{
loadCoordinates(currentImageIndex - 1);
imagePanel.Refresh();
}
// move rectangles with keyboard
if (someoneIsInFocus)
{
if (e.KeyCode == Keys.Left)
{
rectangles.addToFocused(-1, 0);
imagePanel.Refresh();
}
if (e.KeyCode == Keys.Right)
{
rectangles.addToFocused(1, 0);
imagePanel.Refresh();
}
if (e.KeyCode == Keys.Down)
{
rectangles.addToFocused(0, 1);
imagePanel.Refresh();
}
if (e.KeyCode == Keys.Up)
{
rectangles.addToFocused(0, -1);
imagePanel.Refresh();
}
}
// Set focus based on keyboard shortcut
// for face mode this will cause error.
// index out of range when setting focus on elements past index 2
// in focusShortcuts array
Keys[] focusShortcuts = (mode == Constants.faceMode ? Constants.focusShortcutsF : Constants.focusShortcutsE);
if (Array.Exists(focusShortcuts,
element => element == e.KeyCode) &&
!imagePathTB.Focused && !csvPathTB.Focused)
{
rectangles.resetFocusList();
rectangles.setFocus(Array.IndexOf(focusShortcuts, e.KeyCode));
someoneIsInFocus = true;
imagePanel.Refresh();
}
}
