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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /offapi/com/sun/star/rendering/XGraphicDevice.idl
parentInitial commit. (diff)
downloadlibreoffice-upstream/4%7.4.7.tar.xz
libreoffice-upstream/4%7.4.7.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef __com_sun_star_rendering_XGraphicDevice_idl__
+#define __com_sun_star_rendering_XGraphicDevice_idl__
+
+#include <com/sun/star/uno/XInterface.idl>
+#include <com/sun/star/lang/IllegalArgumentException.idl>
+#include <com/sun/star/geometry/IntegerSize2D.idl>
+#include <com/sun/star/geometry/RealSize2D.idl>
+#include <com/sun/star/rendering/XLinePolyPolygon2D.idl>
+#include <com/sun/star/rendering/XBezierPolyPolygon2D.idl>
+#include <com/sun/star/rendering/XColorSpace.idl>
+#include <com/sun/star/lang/XMultiServiceFactory.idl>
+
+module com { module sun { module star { module rendering {
+
+interface XBitmap;
+interface XVolatileBitmap;
+interface XBufferController;
+
+/* TODO: There's obviously a concept called window missing here, where
+ methods such as bufferController, fullscreen mode etc . belong
+ to. But see below
+ */
+
+/** This interface provides access to a graphic device, such as a
+ printer, or a screen device. Every canvas (@see XCanvas) has
+ exactly one associated graphic device, into which its output is
+ rendered.
+
+ For a typical windowing system, the graphic device is equivalent
+ to a distinct OS window, with its own clipped output area,
+ fullscreen and double-buffering attributes. That is, even if one
+ can have multiple canvases per system window, they all share the
+ same graphic device and thus e.g. fullscreen state. If the OS
+ restrictions are in such a way that fullscreen or double-buffering
+ is screen-exclusive, i.e. that per screen, only one object can
+ have this state, it might even be that all windows on the screen
+ share a common graphic device.
+ */
+interface XGraphicDevice : ::com::sun::star::uno::XInterface
+{
+ /** Query the controller for multi buffering functionality on this
+ graphic device.
+
+ If there is no such functionality available, the NULL
+ reference is returned.
+ */
+ XBufferController getBufferController();
+
+
+ /** Query the color space interface for this graphic device.
+
+ This is to be used when interpreting or setting device color
+ values.
+ */
+ XColorSpace getDeviceColorSpace();
+
+
+ /** Query the physical resolution of the device in pixel per
+ millimeter.
+
+ A special floating point value of +infinity here indicates
+ "unknown", i.e. at the time of rendering undetermined or
+ possibly infinite resolution along the corresponding
+ direction.
+ */
+ ::com::sun::star::geometry::RealSize2D getPhysicalResolution();
+
+
+ /** Query the physical dimensions of the device in millimeter.
+
+ A special floating point value of +infinity here indicates
+ "unknown", i.e. at the time of rendering undetermined or
+ possibly infinite resolution along the corresponding
+ direction.
+
+ @see XBitmap::getSize()
+ */
+ ::com::sun::star::geometry::RealSize2D getPhysicalSize();
+
+
+ /** Create a line poly-polygon which can internally use
+ device-optimized representations already.
+
+ @param points
+ The points of the poly-polygon, in a separate array for every polygon.
+ */
+ XLinePolyPolygon2D createCompatibleLinePolyPolygon( [in] sequence< sequence< ::com::sun::star::geometry::RealPoint2D > > points );
+
+
+ /** Create a Bezier poly-polygon which can internally use
+ device-optimized representations already.
+
+ @param points
+ The points of the poly-polygon, in a separate array for every polygon.
+ */
+ XBezierPolyPolygon2D createCompatibleBezierPolyPolygon( [in] sequence< sequence< ::com::sun::star::geometry::RealBezierSegment2D > > points );
+
+
+ /** Create a bitmap whose memory layout and sample model is
+ compatible to the graphic device.
+
+ @param size
+ Size of the requested bitmap in pixel. Both components of the
+ size must be greater than 0
+ */
+ XBitmap createCompatibleBitmap( [in] ::com::sun::star::geometry::IntegerSize2D size )
+ raises (com::sun::star::lang::IllegalArgumentException);
+
+
+ /** Create a volatile bitmap that is usable with this graphic device.
+
+ A volatile bitmap's difference in comparison to a plain bitmap
+ (e.g. generated via createCompatibleBitmap()) is the fact that
+ its content might vanish at any point in time (making any
+ operation with them produce a
+ VolatileContentDestroyedException). The benefit,
+ on the other hand, is that they might be easy to
+ hardware-accelerate on certain platforms, without the need to
+ keep a safety copy of the content internally.
+
+ @param size
+ Size of the requested bitmap in pixel. Both components of the
+ size must be greater than 0
+ */
+ XVolatileBitmap createVolatileBitmap( [in] ::com::sun::star::geometry::IntegerSize2D size )
+ raises (com::sun::star::lang::IllegalArgumentException);
+
+
+ /** Create a bitmap with alpha channel whose memory layout and
+ sample model is compatible to the graphic device.
+
+ @param size
+ Size of the requested bitmap in pixel. Both components of the
+ size must be greater than 0
+ */
+ XBitmap createCompatibleAlphaBitmap( [in] ::com::sun::star::geometry::IntegerSize2D size )
+ raises (com::sun::star::lang::IllegalArgumentException);
+
+
+ /** Create a volatile bitmap with alpha channel that is usable
+ with this graphic device.
+
+ A volatile bitmap's difference in comparison to a plain bitmap
+ (e.g. generated via createCompatibleBitmap()) is the fact that
+ its content might vanish at any point in time (making any
+ operation with them produce a
+ VolatileContentDestroyedException). The benefit,
+ on the other hand, is that they might be easy to
+ hardware-accelerate on certain platforms, without the need to
+ keep a safety copy of the content internally.
+
+ @param size
+ Size of the requested bitmap in pixel. Both components of the
+ size must be greater than 0
+ */
+ XVolatileBitmap createVolatileAlphaBitmap( [in] ::com::sun::star::geometry::IntegerSize2D size )
+ raises (com::sun::star::lang::IllegalArgumentException);
+
+
+ /** Get a reference to this device's parametric polygon factory.
+
+ @return a reference to this device's parametric polygon
+ factory. Although it is possible to use parametric polygons on
+ all canvases, regardless of the associated graphic device,
+ this is not advisable: each canvas implementation is free to
+ internally generate optimized parametric polygons, which can
+ be used more directly for e.g. texturing operations.
+
+ Available services (all canvas implementations should provide
+ this minimal set, though are free to add more; just check the
+ getAvailableServiceNames() on the returned interface):
+
+ - Gradients - all gradients need to support two construction
+ parameters, "Colors" being a `sequence&lt; Color &gt;`
+ and "Stops" being a `sequence&lt; double &gt;`. Both must
+ have the same length, and at least two elements. See
+ http://www.w3.org/TR/SVG11/pservers.html#GradientStops for
+ the semantics of gradient stops and colors.
+ Required gradient services:
+
+ - "LinearGradient" - the gradient varies linearly between
+ the given colors. without coordinate system
+ transformation, the color interpolation happens in
+ increasing x direction, and is constant in y
+ direction. Equivalent to svg linear gradient
+ http://www.w3.org/TR/SVG11/pservers.html#LinearGradients
+
+ - "EllipticalGradient" - this gradient has zeroth color
+ index in the middle, and varies linearly between center
+ and final color. The services takes an additional
+ parameter named "AspectRatio" of double
+ (width divided by height), if this aspect ratio is 1, the
+ gradient is circular. If it's not 1, the gradient is
+ elliptical, with the special twist that the aspect ratio
+ is maintained also for the center color: the gradient will
+ not collapse into a single point, but become a line of
+ center color. If "AspectRatio" is missing, or equal to 1,
+ this gradient yields similar results as the svg radial
+ gradient
+ http://www.w3.org/TR/SVG11/pservers.html#RadialGradients
+
+ - "RectangularGradient" - this gradient has zeroth color
+ index in the middle, and varies linearly between center
+ and final color via rectangular boxes
+ around the center point. The services takes an additional
+ parameter named "AspectRatio" of double
+ (width divided by height), if this aspect ratio is 1, the
+ gradient is quadratic. If it's not 1, the gradient is
+ rectangular, with the special twist that the aspect ratio
+ is maintained also for the center color: the gradient will
+ not collapse into a single point, but become a line of
+ center color.
+
+ - Hatch patterns - Required hatch services:
+
+ - "VerticalLineHatch" - this hatching consists of vertical lines
+ - "OrthogonalLinesHatch" - this hatching consists of
+ crossing vertical and horizontal lines
+ - "ThreeCrossingLinesHatch" - this hatching consists of
+ vertical and horizontal lines plus diagonal lines from
+ left, top to bottom, right.
+ - "FourCrossingLinesHatch" - this hatching consists of
+ vertical and horizontal lines plus diagonal lines in both
+ directions.
+ */
+ com::sun::star::lang::XMultiServiceFactory getParametricPolyPolygonFactory();
+
+
+ /** Tells whether this graphic device has a full screen mode,
+ i.e. whether a window can cover the whole screen exclusively.
+ */
+ boolean hasFullScreenMode();
+
+
+ /** Enter or leave the fullscreen mode, if possible. The return
+ value denotes the success of the operation.
+
+ @attention depending on the underlying operating system,
+ fullscreen mode can be left without an enterFullScreenMode(
+ false ) call.
+ */
+ boolean enterFullScreenMode( [in] boolean bEnter );
+};
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */