/**
* SetLayerTransform() sets a transformation factor that will be applied for
* the current graphics context displayed on the output device. If both
* SetScale and SetLayerTransform will be used, they are going to get combined
* for the final result.
*
* This function has no effect until you call Flush().
*
* @param[in] scale The scale to be applied.
* @param[in] origin The origin of the scale.
* @param[in] translate The translation to be applied.
*
* @return Returns <code>PP_TRUE</code> on success or <code>PP_FALSE</code>
* if the resource is invalid or the scale factor is 0 or less.
*/
public static PPBool SetLayerTransform(PPResource resource,
float scale,
PPPoint origin,
PPPoint translate)
{
return(_SetLayerTransform(resource, scale, origin, translate));
}
/**
* Sets the given mouse cursor. The mouse cursor will be in effect whenever
* the mouse is over the given instance until it is set again by another
* call. Note that you can hide the mouse cursor by setting it to the
* <code>PP_MOUSECURSOR_TYPE_NONE</code> type.
*
* This function allows setting both system defined mouse cursors and
* custom cursors. To set a system-defined cursor, pass the type you want
* and set the custom image to 0 and the hot spot to NULL. To set a custom
* cursor, set the type to <code>PP_MOUSECURSOR_TYPE_CUSTOM</code> and
* specify your image and hot spot.
*
* @param[in] instance A <code>PP_Instance</code> identifying the instance
* that the mouse cursor will affect.
*
* @param[in] type A <code>PP_MouseCursor_Type</code> identifying the type of
* mouse cursor to show.
*
* @param[in] image A <code>PPB_ImageData</code> resource identifying the
* custom image to set when the type is
* <code>PP_MOUSECURSOR_TYPE_CUSTOM</code>. The image must be less than 32
* pixels in each direction and must be of the system's native image format.
* When you are specifying a predefined cursor, this parameter must be 0.
*
* @param[in] hot_spot When setting a custom cursor, this identifies the
* pixel position within the given image of the "hot spot" of the cursor.
* When specifying a stock cursor, this parameter is ignored.
*
* @return PP_TRUE on success, or PP_FALSE if the instance or cursor type
* is invalid, or if the image is too large.
*/
public static PPBool SetCursor(PPInstance instance,
PPMouseCursorType type,
PPResource image,
PPPoint hot_spot)
{
return(_SetCursor(instance, type, image, hot_spot));
}
/**
* PaintImageData() enqueues a paint of the given image into the context.
* This function has no effect until you call Flush() As a result, what
* counts is the contents of the bitmap when you call Flush(), not when
* you call this function.
*
* The provided image will be placed at <code>top_left</code> from the top
* left of the context's internal backing store. Then the pixels contained
* in <code>src_rect</code> will be copied into the backing store. This
* means that the rectangle being painted will be at <code>src_rect</code>
* offset by <code>top_left</code>.
*
* The <code>src_rect</code> is specified in the coordinate system of the
* image being painted, not the context. For the common case of copying the
* entire image, you may specify an empty <code>src_rect</code>.
*
* The painted area of the source bitmap must fall entirely within the
* context. Attempting to paint outside of the context will result in an
* error. However, the source bitmap may fall outside the context, as long
* as the <code>src_rect</code> subset of it falls entirely within the
* context.
*
* There are two methods most modules will use for painting. The first
* method is to generate a new <code>ImageData</code> and then paint it. In
* this case, you'll set the location of your painting to
* <code>top_left</code> and set <code>src_rect</code> to <code>NULL</code>.
* The second is that you're generating small invalid regions out of a larger
* bitmap representing your entire instance. In this case, you would set the
* location of your image to (0,0) and then set <code>src_rect</code> to the
* pixels you changed.
*
* @param[in] resource The 2D Graphics resource.
* @param[in] image The <code>ImageData</code> to be painted.
* @param[in] top_left A <code>Point</code> representing the
* <code>top_left</code> location where the <code>ImageData</code> will be
* painted.
* @param[in] src_rect The rectangular area where the <code>ImageData</code>
* will be painted.
*/
public static void PaintImageData(PPResource graphics_2d,
PPResource image_data,
PPPoint top_left,
PPRect src_rect)
{
_PaintImageData(graphics_2d, image_data, top_left, src_rect);
}
public void Swap(ref PPPoint other)
{
int tempX = X;
int tempY = Y;
X = other.X;
Y = other.Y;
other.X = tempX;
other.Y = tempY;
}
public override bool Equals(object obj)
{
if (!(obj is PPPoint))
{
return(false);
}
PPPoint comp = (PPPoint)obj;
// Note value types can't have derived classes, so we don't need
// to check the types of the objects here.
return(comp.X == this.X && comp.Y == this.Y);
}
public PPRect(PPPoint origin, PPSize size)
: this(origin.X, origin.Y, size.Width, size.Height)
{
}
extern static PPBool _SetCursor(PPInstance instance,
PPMouseCursorType type,
PPResource image,
PPPoint hot_spot);
public PPFloatPoint(PPPoint other)
{
x = other.X;
y = other.Y;
}
/// <summary>
/// This function is used retrieve the address of the given pixel for 32-bit
/// pixel formats.
/// </summary>
/// <param name="coord">A <code>PPPoint</code> representing the x and y
/// coordinates for a specific pixel.
/// </param>
/// <returns>The IntPtr for the pixel.</returns>
public IntPtr GetAddr32(PPPoint coord)
{
// If we add more image format types that aren't 32-bit, we'd want to check
// here and fail.
return(imageDataPtr + coord.Y * Stride + coord.X * 4);
}
/// <summary>
/// PaintImageData() enqueues a paint command of the given image into
/// the context. This command has no effect until you call Flush(). As a
/// result, what counts is the contents of the bitmap when you call Flush(),
/// not when you call this function.
///
/// The provided image will be placed at <code>top_left</code> from the top
/// left of the context's internal backing store. Then the pixels contained
/// in <code>src_rect</code> will be copied into the backing store. This
/// means that the rectangle being painted will be at <code>src_rect</code>
/// offset by <code>top_left</code>.
///
/// The <code>src_rect</code> is specified in the coordinate system of the
/// image being painted, not the context. For the common case of copying the
/// entire image, you may specify an empty <code>src_rect</code>.
///
/// The painted area of the source bitmap must fall entirely within the
/// context. Attempting to paint outside of the context will result in an
/// error. However, the source bitmap may fall outside the context, as long
/// as the <code>src_rect</code> subset of it falls entirely within the
/// context.
///
/// There are two methods most modules will use for painting. The first
/// method is to generate a new <code>ImageData</code> and then paint it. In
/// this case, you'll set the location of your painting to
/// <code>topLeft</code> and set <code>srcRect</code> to <code>NULL</code>.
/// The second is that you're generating small invalid regions out of a larger
/// bitmap representing your entire module. In this case, you would set the
/// location of your image to (0,0) and then set <code>srcRect</code> to the
/// pixels you changed.
/// </summary>
/// <param name="image">The <code>ImageData</code> to be painted.</param>
/// <param name="topLeft">A <code>Point</code> representing the
/// <code>topLeft</code> location where the <code>ImageData</code> will be
/// painted.
/// </param>
/// <param name="srcRect">The rectangular area where the <code>ImageData</code>
/// will be painted.</param>
public void PaintImageData(ImageData image,
PPPoint topLeft, PPRect srcRect)
{
PPBGraphics2D.PaintImageData(this, image, topLeft, srcRect);
}
extern static PPBool _SetLayerTransform(PPResource resource,
float scale,
PPPoint origin,
PPPoint translate);
/**
* Scroll() enqueues a scroll of the context's backing store. This
* function has no effect until you call Flush(). The data within the
* provided clipping rectangle will be shifted by (dx, dy) pixels.
*
* This function will result in some exposed region which will have undefined
* contents. The module should call PaintImageData() on these exposed regions
* to give the correct contents.
*
* The scroll can be larger than the area of the clipping rectangle, which
* means the current image will be scrolled out of the rectangle. This
* scenario is not an error but will result in a no-op.
*
* @param[in] graphics_2d The 2D Graphics resource.
* @param[in] clip The clipping rectangle.
* @param[in] amount The amount the area in the clipping rectangle will
* shifted.
*/
public static void Scroll(PPResource graphics_2d,
PPRect clip_rect,
PPPoint amount)
{
_Scroll(graphics_2d, clip_rect, amount);
}
extern static PPBool _GetScrollOffset(PPResource resource,
out PPPoint offset);
extern static void _PaintImageData(PPResource graphics_2d,
PPResource image_data,
PPPoint top_left,
PPRect src_rect);
/// <summary>
/// PaintImageData() enqueues a paint command of the given image into
/// the context. This command has no effect until you call Flush(). As a
/// result, what counts is the contents of the bitmap when you call Flush,
/// not when you call this function.
///
/// The provided image will be placed at <code>top_left</code> from the top
/// left of the context's internal backing store. This version of
/// PaintImageData paints the entire image. Refer to the other version of
/// this function to paint only part of the area.
///
/// The painted area of the source bitmap must fall entirely within the
/// context. Attempting to paint outside of the context will result in an
/// error.
///
/// There are two methods most modules will use for painting. The first
/// method is to generate a new <code>ImageData</code> and then paint it.
/// In this case, you'll set the location of your painting to
/// <code>top_left</code> and set <code>src_rect</code> to <code>NULL</code>.
/// The second is that you're generating small invalid regions out of a larger
/// bitmap representing your entire module's image.
/// </summary>
/// <param name="image"></param>
/// <param name="top_left"></param>
public void PaintImageData(ImageData image,
PPPoint top_left)
{
PPBGraphics2D.PaintImageData(this, image, top_left, new PPRect(Size));
}
public bool SetLayerTransform(float scale,
PPPoint origin,
PPPoint translate)
{
return(PPBGraphics2D.SetLayerTransform(this, scale, origin, translate) == PPBool.True ? true : false);
}
/// <summary>
/// Scroll() enqueues a scroll of the context's backing store. This
/// function has no effect until you call Flush(). The data within the
/// provided clipping rectangle will be shifted by (dx, dy) pixels.
///
/// This function will result in some exposed region which will have
/// undefined contents. The module should call PaintImageData() on
/// these exposed regions to give the correct contents.
///
/// The scroll can be larger than the area of the clipping rectangle, which
/// means the current image will be scrolled out of the rectangle. This
/// scenario is not an error but will result in a no-op.
/// </summary>
/// <param name="clip">The clipping rectangle.</param>
/// <param name="amount">The amount the area in the clipping rectangle will be shifted.</param>
public void Scroll(PPRect clip, PPPoint amount)
{
PPBGraphics2D.Scroll(this, clip, amount);
}
/**
* GetScrollOffset returns the scroll offset of the window containing the
* plugin.
*
* @param[in] resource A <code>PP_Resource</code> corresponding to a
* <code>PPB_View</code> resource.
*
* @param[out] offset A <code>PP_Point</code> which will be set to the value
* of the scroll offset in CSS pixels.
*
* @return Returns <code>PP_TRUE</code> if the resource was valid and the
* offset was filled in, <code>PP_FALSE</code> if not.
*/
public static PPBool GetScrollOffset(PPResource resource,
out PPPoint offset)
{
return(_GetScrollOffset(resource, out offset));
}
extern static void _Scroll(PPResource graphics_2d,
PPRect clip_rect,
PPPoint amount);
