From d796c9dd933ab96ec83b9a634feedd5d32e1ba3f Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Tue, 8 Nov 2011 12:31:36 -0600 Subject: Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731 --- doc/html/qimageconsumer.html | 142 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 doc/html/qimageconsumer.html (limited to 'doc/html/qimageconsumer.html') diff --git a/doc/html/qimageconsumer.html b/doc/html/qimageconsumer.html new file mode 100644 index 00000000..4d06fb95 --- /dev/null +++ b/doc/html/qimageconsumer.html @@ -0,0 +1,142 @@ + + + + + +TQImageConsumer Class + + + + + + + +
+ +Home + | +All Classes + | +Main Classes + | +Annotated + | +Grouped Classes + | +Functions +

TQImageConsumer Class Reference

+ +

The TQImageConsumer class is an abstraction used by TQImageDecoder. +More... +

#include <qasyncimageio.h> +

List of all member functions. +

Public Members

+ +

Detailed Description

+ + +The TQImageConsumer class is an abstraction used by TQImageDecoder. +

+ + +

The TQMovie class, or TQLabel::setMovie(), are easy to use and for +most situations do what you want with regards animated images. +

A TQImageConsumer consumes information about changes to the TQImage +maintained by a TQImageDecoder. Think of the TQImage as the model or +source of the image data, with the TQImageConsumer as a view of +that data and the TQImageDecoder being the controller that +orchestrates the relationship between the model and the view. +

You'd use the TQImageConsumer class, for example, if you were +implementing a web browser with your own image loaders. +

See also TQImageDecoder, Graphics Classes, Image Processing Classes, and Multimedia Classes. + +

Member Function Documentation

+

void TQImageConsumer::changed ( const TQRect & ) [pure virtual] +

+ +

Called when the given area of the image has changed. + +

void TQImageConsumer::end () [pure virtual] +

+ +

Called when all the data from all the frames has been decoded and +revealed as changed(). + +

void TQImageConsumer::frameDone () [pure virtual] +

+ +

One of the two frameDone() functions will be called when a frame +of an animated image has ended and been revealed as changed(). +

When this function is called, the current image should be +displayed. +

The decoder will not make any further changes to the image until +the next call to TQImageFormat::decode(). + +

void TQImageConsumer::frameDone ( const TQPoint & offset, const TQRect & rect ) [pure virtual] +

+This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +

One of the two frameDone() functions will be called when a frame +of an animated image has ended and been revealed as changed(). +

When this function is called, the area rect in the current +image should be moved by offset and displayed. +

The decoder will not make any further changes to the image until +the next call to TQImageFormat::decode(). + +

void TQImageConsumer::setFramePeriod ( int milliseconds ) [pure virtual] +

+ +

Notes that the frame about to be decoded should not be displayed +until the given number of milliseconds after the time that this +function is called. Of course, the image may not have been +decoded by then, in which case the frame should not be displayed +until it is complete. A value of -1 (the assumed default) +indicates that the image should be displayed even while it is only +partially loaded. + +

void TQImageConsumer::setLooping ( int n ) [pure virtual] +

+ +

Called to indicate that the sequence of frames in the image +should be repeated n times, including the sequence during +decoding. +

+

To make the TQImageDecoder do this, just delete it and pass the +information to it again for decoding (setLooping() will be called +again, of course, but that can be ignored), or keep copies of the +changed areas at the ends of frames. + +

void TQImageConsumer::setSize ( int, int ) [pure virtual] +

+ +

This function is called as soon as the size of the image has been +determined. + + +

+This file is part of the TQt toolkit. +Copyright © 1995-2007 +Trolltech. All Rights Reserved.

+ +
Copyright © 2007 +TrolltechTrademarks +
TQt 3.3.8
+
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