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JUCE/modules/juce_gui_extra/misc/juce_BubbleMessageComponent.h

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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found 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.juce.com for more information.
==============================================================================
*/
#ifndef __JUCE_BUBBLEMESSAGECOMPONENT_JUCEHEADER__
#define __JUCE_BUBBLEMESSAGECOMPONENT_JUCEHEADER__
//==============================================================================
/**
A speech-bubble component that displays a short message.
This can be used to show a message with the tail of the speech bubble
pointing to a particular component or location on the screen.
@see BubbleComponent
*/
class JUCE_API BubbleMessageComponent : public BubbleComponent,
private Timer
{
public:
//==============================================================================
/** Creates a bubble component.
After creating one a BubbleComponent, do the following:
- add it to an appropriate parent component, or put it on the
desktop with Component::addToDesktop (0).
- use the showAt() method to show a message.
- it will make itself invisible after it times-out (and can optionally
also delete itself), or you can reuse it somewhere else by calling
showAt() again.
*/
BubbleMessageComponent (int fadeOutLengthMs = 150);
/** Destructor. */
~BubbleMessageComponent();
//==============================================================================
/** Shows a message bubble at a particular position.
This shows the bubble with its stem pointing to the given location
(co-ordinates being relative to its parent component).
For details about exactly how it decides where to position itself, see
BubbleComponent::updatePosition().
@param position the coords of the object to point to
@param message the text to display
@param numMillisecondsBeforeRemoving how long to leave it on the screen before removing itself
from its parent compnent. If this is 0 or less, it
will stay there until manually removed.
@param removeWhenMouseClicked if this is true, the bubble will disappear as soon as a
mouse button is pressed (anywhere on the screen)
@param deleteSelfAfterUse if true, then the component will delete itself after
it becomes invisible
*/
void showAt (const Rectangle<int>& position,
const AttributedString& message,
int numMillisecondsBeforeRemoving,
bool removeWhenMouseClicked = true,
bool deleteSelfAfterUse = false);
/** Shows a message bubble next to a particular component.
This shows the bubble with its stem pointing at the given component.
For details about exactly how it decides where to position itself, see
BubbleComponent::updatePosition().
@param component the component that you want to point at
@param message the text to display
@param numMillisecondsBeforeRemoving how long to leave it on the screen before removing itself
from its parent compnent. If this is 0 or less, it
will stay there until manually removed.
@param removeWhenMouseClicked if this is true, the bubble will disappear as soon as a
mouse button is pressed (anywhere on the screen)
@param deleteSelfAfterUse if true, then the component will delete itself after
it becomes invisible
*/
void showAt (Component* component,
const AttributedString& message,
int numMillisecondsBeforeRemoving,
bool removeWhenMouseClicked = true,
bool deleteSelfAfterUse = false);
//==============================================================================
/** @internal */
void getContentSize (int& w, int& h);
/** @internal */
void paintContent (Graphics& g, int w, int h);
/** @internal */
void timerCallback();
private:
//==============================================================================
int fadeOutLength, mouseClickCounter;
TextLayout textLayout;
int64 expiryTime;
bool deleteAfterUse;
void createLayout (const AttributedString&);
void init (int numMillisecondsBeforeRemoving,
bool removeWhenMouseClicked,
bool deleteSelfAfterUse);
void hide (bool fadeOut);
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (BubbleMessageComponent)
};
#endif // __JUCE_BUBBLEMESSAGECOMPONENT_JUCEHEADER__