JUCE/modules/juce_gui_basics/keyboard/juce_CaretComponent.cpp

/*
  ==============================================================================

   This file is part of the JUCE library - "Jules' Utility Class Extensions"
   Copyright 2004-11 by Raw Material Software Ltd.

  ------------------------------------------------------------------------------

   JUCE can be redistributed and/or modified under the terms of the GNU General
   Public License (Version 2), as published by the Free Software Foundation.
   A copy of the license is included in the JUCE distribution, or can be found
   online at www.gnu.org/licenses.

   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

  ------------------------------------------------------------------------------

   To release a closed-source product which uses JUCE, commercial licenses are
   available: visit www.rawmaterialsoftware.com/juce for more information.

  ==============================================================================
*/

CaretComponent::CaretComponent (Component* const keyFocusOwner)
    : owner (keyFocusOwner)
{
    setAlwaysOnTop (true);
    setInterceptsMouseClicks (false, false);
}

CaretComponent::~CaretComponent()
{
}

void CaretComponent::paint (Graphics& g)
{
    g.fillAll (findColour (caretColourId, true));
}

void CaretComponent::timerCallback()
{
    setVisible (shouldBeShown() && ! isVisible());
}

void CaretComponent::setCaretPosition (const Rectangle<int>& characterArea)
{
    startTimer (380);
    setVisible (shouldBeShown());
    setBounds (characterArea.withWidth (2));
}

bool CaretComponent::shouldBeShown() const
{
    return owner == nullptr || (owner->hasKeyboardFocus (true)
                                 && ! owner->isCurrentlyBlockedByAnotherModalComponent());
}