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JUCE/modules/juce_gui_basics/accessibility/interfaces/juce_AccessibilityTextInterface.h
2024-04-16 11:39:35 +01:00

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/*
==============================================================================
This file is part of the JUCE framework.
Copyright (c) Raw Material Software Limited
JUCE is an open source framework subject to commercial or open source
licensing.
By downloading, installing, or using the JUCE framework, or combining the
JUCE framework with any other source code, object code, content or any other
copyrightable work, you agree to the terms of the JUCE End User Licence
Agreement, and all incorporated terms including the JUCE Privacy Policy and
the JUCE Website Terms of Service, as applicable, which will bind you. If you
do not agree to the terms of these agreements, we will not license the JUCE
framework to you, and you must discontinue the installation or download
process and cease use of the JUCE framework.
JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
JUCE Privacy Policy: https://juce.com/juce-privacy-policy
JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
Or:
You may also use this code under the terms of the AGPLv3:
https://www.gnu.org/licenses/agpl-3.0.en.html
THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
==============================================================================
*/
namespace juce
{
/** An abstract interface which represents a UI element that supports a text interface.
A UI element can use this interface to provide extended textual information which
cannot be conveyed using just the title, description, and help text properties of
AccessibilityHandler. This is typically for text that an accessibility client might
want to read line-by-line, or provide text selection and input for.
@tags{Accessibility}
*/
class JUCE_API AccessibilityTextInterface
{
public:
/** Destructor. */
virtual ~AccessibilityTextInterface() = default;
/** Returns true if the text being displayed is protected and should not be
exposed to the user, for example a password entry field.
*/
virtual bool isDisplayingProtectedText() const = 0;
/** Returns true if the text being displayed is read-only or false if editable. */
virtual bool isReadOnly() const = 0;
/** Returns the total number of characters in the text element. */
virtual int getTotalNumCharacters() const = 0;
/** Returns the range of characters that are currently selected, or an empty
range if nothing is selected.
*/
virtual Range<int> getSelection() const = 0;
/** Selects a section of the text. */
virtual void setSelection (Range<int> newRange) = 0;
/** Gets the current text insertion position, if supported. */
virtual int getTextInsertionOffset() const = 0;
/** Returns a section of text. */
virtual String getText (Range<int> range) const = 0;
/** Returns the full text. */
String getAllText() const { return getText ({ 0, getTotalNumCharacters() }); }
/** Replaces the text with a new string. */
virtual void setText (const String& newText) = 0;
/** Returns the bounding box in screen coordinates for a range of text.
As the range may span multiple lines, this method returns a RectangleList.
*/
virtual RectangleList<int> getTextBounds (Range<int> textRange) const = 0;
/** Returns the index of the character at a given position in screen coordinates. */
virtual int getOffsetAtPoint (Point<int> point) const = 0;
};
} // namespace juce