100 lines
2.2 KiB
Text
100 lines
2.2 KiB
Text
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file imageResize.I
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* @author drose
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* @date 2003-03-13
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*/
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/**
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*
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*/
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INLINE ImageResize::SizeRequest::
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SizeRequest() {
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_type = RT_none;
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}
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/**
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* Returns the type of the size request, or RT_none if the request has not
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* been specified.
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*/
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INLINE ImageResize::RequestType ImageResize::SizeRequest::
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get_type() const {
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return _type;
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}
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/**
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* Sets the size request to store an explicit pixel size.
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*/
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INLINE void ImageResize::SizeRequest::
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set_pixel_size(int pixel_size) {
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_type = RT_pixel_size;
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_e._pixel_size = pixel_size;
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}
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/**
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* Returns the explicit pixel size stored within the size request.
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*/
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INLINE int ImageResize::SizeRequest::
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get_pixel_size() const {
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nassertr(_type == RT_pixel_size, 0);
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return _e._pixel_size;
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}
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/**
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* Returns the explicit pixel size stored within the size request, or if a
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* ratio has been stored, returns the computed pixel size based on the
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* original size.
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*/
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INLINE int ImageResize::SizeRequest::
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get_pixel_size(int orig_pixel_size) const {
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switch (_type) {
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case RT_pixel_size:
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return _e._pixel_size;
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case RT_ratio:
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return (int)(_e._ratio * orig_pixel_size + 0.5);
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default:
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return orig_pixel_size;
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}
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}
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/**
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* Sets the size request to store a specific ratio.
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*/
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INLINE void ImageResize::SizeRequest::
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set_ratio(double ratio) {
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_type = RT_ratio;
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_e._ratio = ratio;
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}
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/**
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* Returns the specific ratio stored within the size request.
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*/
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INLINE double ImageResize::SizeRequest::
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get_ratio() const {
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nassertr(_type == RT_ratio, 0);
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return _e._ratio;
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}
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/**
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* Returns the specific ratio stored within the size request, or if a pixel
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* size has been stored, returns the computed ratio based on the original
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* size.
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*/
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INLINE double ImageResize::SizeRequest::
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get_ratio(int orig_pixel_size) const {
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switch (_type) {
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case RT_ratio:
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return _e._ratio;
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case RT_pixel_size:
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return (double)_e._pixel_size / (double)orig_pixel_size;
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default:
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return 1.0;
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}
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}
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