/usr/share/idl/gnome-mag-1.0/GNOME_Magnifier.idl is in libgnome-mag-dev 1:0.16.3-1.
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* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
* Copyright 2001 Sun Microsystems Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _GNOME_MAGNIFIER_IDL
#define _GNOME_MAGNIFIER_IDL
#include <Bonobo_Unknown.idl>
#include <Bonobo_Property.idl>
module GNOME {
module Magnifier {
struct Point {
long x, y;
};
struct RectBounds {
long x1, y1, x2, y2;
};
interface ZoomRegion : Bonobo::Unknown {
enum AlignPolicy {
ALIGN_CENTER,
ALIGN_MIN,
ALIGN_MAX
};
enum ScrollingPolicy {
SCROLL_FASTEST,
SCROLL_FAST,
SCROLL_NORMAL,
SCROLL_SMOOTH,
SCROLL_SMOOTHEST
};
enum ColorBlindFilter {
COLORBLIND_FILTER_T_NO_FILTER,
COLORBLIND_FILTER_T_SELECTIVE_SATURATE_RED,
COLORBLIND_FILTER_T_SELECTIVE_SATURATE_GREEN,
COLORBLIND_FILTER_T_SELECTIVE_SATURATE_BLUE,
COLORBLIND_FILTER_T_SELECTIVE_DESSATURATE_RED,
COLORBLIND_FILTER_T_SELECTIVE_DESSATURATE_GREEN,
COLORBLIND_FILTER_T_SELECTIVE_DESSATURATE_BLUE,
COLORBLIND_FILTER_T_HUE_SHIFT_POSITIVE,
COLORBLIND_FILTER_T_HUE_SHIFT_NEGATIVE,
COLORBLIND_FILTER_T_SELECTIVE_SATURATE,
COLORBLIND_FILTER_T_SELECTIVE_DESSATURATE,
COLORBLIND_FILTER_T_MONOCHRONE_OTHERS
};
/**
* Set the current x and y magnification ratio.
* (Convenience method for setting mag-factor-x and mag-factor-y properties).
* Note that if the zoom region's target hasn't yet been realized or mapped to the
* display, we will not be able to detect failure, so a return of %TRUE must
* be taken on advisement if the operation is performed on a newly-created
* zoom region.
* @param magX the magnification factor in the x direction for the specified region.
* @param magY the magnification factor in the x direction for the specified region.
* @returns %TRUE if operation succeeded, %FALSE if the requested mag factor cannot be set.
**/
boolean setMagFactor (in float magX, in float magY);
/**
* Get the current x and y magnification ratios.
* (Convenience method for getting mag-factor-x and mag-factor-y properties).
* @param magX: the magnification factor in the x direction for the specified region.
* @param magY: the magnification factor in the x direction for the specified region.
**/
void getMagFactor (out float magX, out float magY);
/**
* Gets the current property settings for this ZoomRegion.
* Properties managed by the ZoomRegion include "smoothing-type", "contrast",
* "inverse-video", "border-size", "border-color", "x-alignment", "y-alignment",
* "is-managed", "viewport", "mag-factor-x", "mag-factor-y".
* @returns a Bonobo::PropertyBag containing the ZoomRegion's properties.
**/
Bonobo::PropertyBag getProperties ();
/**
* Set the region of interest for the magnifier.
* @param bounds: the ROI bounding box
**/
oneway void setROI (in RectBounds bounds);
/**
* Update the pointer image.
* @note This was added due the need to the Magnifier object signalize all
* ZoomRegion objects about a pointer image update.
**/
void updatePointer ();
/**
* Mark the zoom region or a sub-region 'dirty' and in need of updating.
* @note This region will be clipped to the area currently visible in
* the target region.
* @param dirtyRegion: the bounding box of the dirty region.
**/
void markDirty (in RectBounds dirtyRegion);
/**
* Query a specific zoom region for its ROI.
* @returns the RectBounds bounding box of the zoom ROI.
**/
RectBounds getROI ();
/**
* Move and resize the specified zoom region on the target display.
* (Convenience method for setting "viewport" property).
* @param bounds: the bounding box, in target display coordinates, of the ZoomRegion's
* display viewport.
**/
void moveResize (in RectBounds bounds);
/**
* Remove the specified zoom region from the magnifier and destroy it.
**/
void dispose ();
/**
* Set the position where the mouse pointer is to be drawn
* in this zoom-region, in screen coordinates.
* @param mouse_x: the x screen coordinate of the pointer hotspot
* @param mouse_y: the y screen coordinate of the pointer hotspot
**/
oneway void setPointerPos (in long mouse_x, in long mouse_y);
/**
* Set the zoom region image contrast.
* Set the contrast applied to each image component (red, green and blue).
* The input for each component must be in the range -1 and 1, otherwise
* they will be clamped to this interval. The value -1 means reduce 100%
* the contrast, resulting in a gray image. The value 1 means increase 100%
* the contrast, resulting in the R, G and B values being black or white.
* The value 0 means no change in contrast.
* @param R the amount of red in the contrasted image.
* @param G the amount of green in the contrasted image.
* @param B the amount of green in the contrasted image.
**/
void setContrast (in float R, in float G, in float B);
/**
* Get the zoom region image contrast.
* Get the contrast applied to each image component (red, green and blue).
* @param R the amount of red in the contrasted image.
* @param G the amount of green in the contrasted image.
* @param B the amount of green in the contrasted image.
**/
void getContrast (out float R, out float G, out float B);
/**
* Set the zoom region image brightness.
* Set the brightness applied to each image component (reg, green and
* blue). The input for each component must be in the range between -1 and
* 1, if the are bigger or lower then this range, the value will be clamped
* to the interval. The value -1 means reduce 100% the brightness,
* resulting in a black image. The value 1 means increase 100% the
* brightness, resulting in a white image.
* @param R the brightness applied to the red component.
* @param G the brightness applied to the green component.
* @param B the brightness applied to the blue component.
**/
void setBrightness (in float R, in float G, in float B);
/**
* Get the zoom region image brightness.
* Get the brightness applied to each image component (red, green and
* blue).
* @param R the brightness applied to the red component.
* @param G the brightness applied to the green component.
* @param B the brightness applied to the blue component.
**/
void getBrightness (out float R, out float G, out float B);
};
typedef sequence<ZoomRegion> ZoomRegionList;
interface Magnifier : Bonobo::Unknown {
/**
* a \c string specifying the name of the display and screen
* (on X Windows systems, as used by XOpenDisplay) on which the "source"
* pixels (e.g. unmagnified image) are located.
**/
attribute string SourceDisplay;
/**
* a \c string specifying the name of the display and screen
* onto which the magnified image is to be placed.
**/
attribute string TargetDisplay;
/**
* Get the current property settings for this Magnifier.
* Properties managed by the magnifier include "cursor-set", "cursor-size",
* "cursor-mag-factor", "target-display-bounds", "source-display-size".
* @returns a Bonobo::PropertyBag containing the Magnifier's properties.
**/
Bonobo::PropertyBag getProperties ();
/**
* Consult if the Magnifier can magnify in full-screen mode.
* @returns TRUE if it can or FALSE otherwise.
**/
boolean fullScreenCapable ();
/**
* Hide the original cursor.
**/
void hideCursor ();
/**
* Show the original cursor.
**/
void showCursor ();
/**
* Consult if the Magnifier can apply colorblind image filters.
* @returns TRUE if it can or FALSE otherwise.
**/
boolean supportColorblindFilters ();
/**
* Create a new zoom region for the magnifier.
* The new region is initially 'unmanaged'; that is, it is not associated with
* a particular sub-region of the "source" display.
* @param zx: the scale factor in the x direction for the new zoom region
* @param zy: the scale factor in the y direction for the new zoom region
* @param ROI: the initial ROI of the zoom region. RectBounds of negative width/height
* indicates that the zoom region has no initial ROI.
* @param viewport: the initial bounds of the ZoomRegion's viewport, in
* the target display coordinate system.
* @returns the newly created ZoomRegion.
**/
ZoomRegion createZoomRegion (in float zx, in float zy,
in RectBounds ROI,
in RectBounds viewport);
/**
* @returns a ZoomRegionList including all currently defined ZoomRegions
* for this Magnifier instance.
**/
ZoomRegionList getZoomRegions ();
/**
* Add a new ZoomRegion to the list of currently defined ZoomRegions
* for this Magnifier instance.
* @returns \c True if successful, \c False if the ZoomRegion cannot be added.
**/
boolean addZoomRegion (in ZoomRegion region);
/**
* Clears and destroys all currently defined zoom regions.
**/
void clearAllZoomRegions ();
/**
* Unmap the current magnifier from the display, destroy its resources, and exit.
**/
void dispose ();
};
};
};
#endif
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