/// <summary>
/// <para>Create a new cursor, based on a pre-defined cursor type.</para>
/// </summary>
///
/// <param name="type">
/// <para>The pre-defined cursor type to use.</para>
/// </param>
public Cursor(CursorType type)
{
this.type = type;
this.source = null;
this.mask = null;
this.cursor = XCursor.Zero;
}
// Get the bitmap corresponding to a particular hatch style.
private static Xsharp.Bitmap GetBitmap(HatchStyle style)
{
Xsharp.Bitmap bitmap;
// See if we have a cached bitmap for this style.
if (((int)style) >= 0 && ((int)style) <= 52)
{
if (hatchBitmaps == null)
{
hatchBitmaps = new Xsharp.Bitmap [53];
}
bitmap = hatchBitmaps[(int)style];
if (bitmap != null)
{
return(bitmap);
}
}
else
{
return(null);
}
// Get the raw bits for the hatch bitmap.
byte[] bits = GetBits(style);
if (bits == null)
{
return(null);
}
// Create the bitmap, cache it for later, and then return it.
bitmap = new Xsharp.Bitmap(16, 16, bits);
hatchBitmaps[(int)style] = bitmap;
return(bitmap);
}
/// <summary>
/// <para>Constructs a new <see cref="T:Xsharp.Image"/> instance
/// that represents an off-screen image.</para>
/// </summary>
///
/// <param name="width">
/// <para>The width of the new image.</para>
/// </param>
///
/// <param name="height">
/// <para>The height of the new image.</para>
/// </param>
///
/// <param name="hasMask">
/// <para>Set to <see langword="null"/> if the optional mask
/// should also be created.</para>
/// </param>
///
/// <exception cref="T:Xsharp.XException">
/// <para>The <paramref name="width"/> or <paramref name="height"/>
/// values are out of range.</para>
/// </exception>
public Image(int width, int height, bool hasMask)
{
pixmap = new Pixmap(width, height);
screen = pixmap.screen;
if(hasMask)
{
mask = new Bitmap(width, height);
}
else
{
mask = null;
}
}
/// <summary>
/// <para>Create a new cursor, based on a user-supplied image
/// and mask.</para>
/// </summary>
///
/// <param name="source">
/// <para>The bitmap defining the source image for the cursor.</para>
/// </param>
///
/// <param name="mask">
/// <para>The bitmap defining the mask for the cursor.</para>
/// </param>
///
/// <param name="hotspotX">
/// <para>The X position of the cursor hotspot.</para>
/// </param>
///
/// <param name="hotspotY">
/// <para>The Y position of the cursor hotspot.</para>
/// </param>
///
/// <exception cref="T:System.ArgumentNullException"/>
/// <para>Raised if <paramref name="source"/> or <paramref name="mask"/>
/// is <see langword="null"/>.</para>
/// </exception>
public Cursor(Bitmap source, Bitmap mask, int hotspotX, int hotspotY)
{
if(source == null)
{
throw new ArgumentNullException("source");
}
if(mask == null)
{
throw new ArgumentNullException("mask");
}
this.type = CursorType.XC_inherit_parent;
this.source = source;
this.mask = mask;
this.cursor = XCursor.Zero;
}
// Draw a bitmap-based glyph to a "Graphics" object. "bits" must be
// in the form of an xbm bitmap.
public override void DrawGlyph(int x, int y,
byte[] bits, int bitsWidth, int bitsHeight,
System.Drawing.Color color)
{
Xsharp.Bitmap bitmap;
bitmap = new Xsharp.Bitmap(bitsWidth, bitsHeight, bits);
try
{
graphics.Foreground = DrawingToolkit.DrawingToXColor(color);
graphics.SetFillStippled(bitmap, x, y);
graphics.FillRectangle(x, y, bitsWidth, bitsHeight);
graphics.SetFillSolid();
}
finally
{
bitmap.Destroy();
}
}
// Convert an XImage mask into a Bitmap object.
public static Bitmap XImageMaskToBitmap(Screen screen, IntPtr ximage)
{
int width, height;
Xlib.XSharpGetImageSize(ximage, out width, out height);
Bitmap bitmap = new Bitmap(screen, width, height);
Graphics graphics = new Graphics(bitmap);
graphics.PutXImage(ximage, 0, 0, 0, 0, width, height);
graphics.Dispose();
return bitmap;
}
/// <summary>
/// <para>Create a new cursor, based on a user-supplied image frame.</para>
/// </summary>
///
/// <param name="screen">
/// <para>The screen to create the cursor for, or
/// <see langword="null"/> for the default screen on the
/// default display.</para>
/// </param>
///
/// <param name="frame">
/// <para>The frame defining the cursor image.</para>
/// </param>
///
/// <exception cref="T:System.ArgumentNullException"/>
/// <para>Raised if <paramref name="frame"/> is
/// <see langword="null"/>.</para>
/// </exception>
public Cursor(Screen screen, Frame frame)
{
Display dpy;
if(frame == null)
{
throw new ArgumentNullException("frame");
}
if(screen != null)
{
dpy = screen.DisplayOfScreen;
}
else
{
dpy = Application.Primary.Display;
screen = dpy.DefaultScreenOfDisplay;
}
if( /* irgnore pixel format! frame.PixelFormat != PixelFormat.Format1bppIndexed || */
frame.Mask == null)
{
// The frame is not suitable for use as a cursor.
this.type = CursorType.XC_left_ptr;
this.source = null;
this.mask = null;
this.cursor = XCursor.Zero;
}
else
{
this.type = CursorType.XC_inherit_parent;
this.cursor = XCursor.Zero;
try
{
dpy.Lock();
IntPtr pixmapXImage =
ConvertImage.FrameToXImageBitmap(screen, frame);
IntPtr maskXImage = ConvertImage.MaskToXImage
(screen, frame);
source = ConvertImage.XImageMaskToBitmap
(screen, pixmapXImage);
mask = ConvertImage.XImageMaskToBitmap
(screen, maskXImage);
Xlib.XSharpDestroyImage(pixmapXImage);
Xlib.XSharpDestroyImage(maskXImage);
hotspotX = frame.HotspotX;
hotspotY = frame.HotspotY;
if(frame.Palette != null && frame.Palette[0] == 0)
{
reverse = true;
}
}
finally
{
dpy.Unlock();
}
}
}
/// <summary>
/// <para>Destroy this image if it is currently active.</para>
/// </summary>
public void Destroy()
{
if(pixmap != null)
{
pixmap.Destroy();
pixmap = null;
}
if(mask != null)
{
mask.Destroy();
mask = null;
}
if(pixmapXImage != IntPtr.Zero)
{
Xlib.XSharpDestroyImage(pixmapXImage);
pixmapXImage = IntPtr.Zero;
}
if(maskXImage != IntPtr.Zero)
{
Xlib.XSharpDestroyImage(maskXImage);
maskXImage = IntPtr.Zero;
}
}
/// <summary>
/// <para>Constructs a new <see cref="T:Xsharp.Image"/> instance
/// that represents an off-screen image on a particular screen.</para>
/// </summary>
///
/// <param name="screen">
/// <para>The screen upon which to create the new pixmap.</para>
/// </param>
///
/// <param name="width">
/// <para>The width of the new image.</para>
/// </param>
///
/// <param name="height">
/// <para>The height of the new image.</para>
/// </param>
///
/// <param name="image">
/// <para>The bits that make up the image.</para>
/// </param>
///
/// <param name="mask">
/// <para>The bits that make up the mask.</para>
/// </param>
///
/// <exception cref="T:Xsharp.XException">
/// <para>The <paramref name="width"/> or <paramref name="height"/>
/// values are out of range.</para>
/// </exception>
public Image(Screen screen, int width, int height, byte[] image, byte[] mask)
{
Display dpy;
if(screen != null)
{
dpy = screen.DisplayOfScreen;
}
else
{
dpy = Application.Primary.Display;
screen = dpy.DefaultScreenOfDisplay;
}
this.screen = screen;
if(width < 1 || width > 32767 ||
height < 1 || height > 32767)
{
throw new XException(S._("X_InvalidBitmapSize"));
}
if(image == null)
{
throw new ArgumentNullException("bits");
}
if(((((width + 15) & ~15) * height) / 8) > image.Length)
{
throw new XException(S._("X_InvalidBitmapBits"));
}
try
{
IntPtr display = dpy.Lock();
XDrawable drawable = (XDrawable)
Xlib.XRootWindowOfScreen(screen.screen);
XPixmap pixmap = Xlib.XCreateBitmapFromData
(display, drawable, image, (uint)width, (uint)height);
this.pixmap = new Pixmap(dpy, screen, pixmap);
}
finally
{
dpy.Unlock();
}
if (mask != null)
this.mask = new Bitmap(screen, width, height, mask);
}
/// <summary>
/// <para>Constructs a new <see cref="T:Xsharp.Image"/> instance
/// that represents an off-screen image on a particular screen.</para>
/// </summary>
///
/// <param name="screen">
/// <para>The screen upon which to create the new pixmap.</para>
/// </param>
///
/// <param name="width">
/// <para>The width of the new image.</para>
/// </param>
///
/// <param name="height">
/// <para>The height of the new image.</para>
/// </param>
///
/// <param name="hasMask">
/// <para>Set to <see langword="null"/> if the optional mask
/// should also be created.</para>
/// </param>
///
/// <exception cref="T:Xsharp.XException">
/// <para>The <paramref name="width"/> or <paramref name="height"/>
/// values are out of range.</para>
/// </exception>
public Image(Screen screen, int width, int height, bool hasMask)
{
pixmap = new Xsharp.Pixmap(screen, width, height);
screen = pixmap.screen;
if(hasMask)
{
mask = new Bitmap(screen, width, height);
}
else
{
mask = null;
}
}
// Draw a bitmap-based glyph to a "Graphics" object. "bits" must be
// in the form of an xbm bitmap.
public override void DrawGlyph(int x, int y,
byte[] bits, int bitsWidth, int bitsHeight,
System.Drawing.Color color)
{
Xsharp.Bitmap bitmap;
bitmap = new Xsharp.Bitmap(bitsWidth, bitsHeight, bits);
try
{
graphics.Foreground = DrawingToolkit.DrawingToXColor(color);
graphics.SetFillStippled(bitmap, x, y);
graphics.FillRectangle(x, y, bitsWidth, bitsHeight);
graphics.SetFillSolid();
}
finally
{
bitmap.Destroy();
}
}
// Get the bitmap corresponding to a particular hatch style.
private static Xsharp.Bitmap GetBitmap(HatchStyle style)
{
Xsharp.Bitmap bitmap;
// See if we have a cached bitmap for this style.
if(((int)style) >= 0 && ((int)style) <= 52)
{
if(hatchBitmaps == null)
{
hatchBitmaps = new Xsharp.Bitmap [53];
}
bitmap = hatchBitmaps[(int)style];
if(bitmap != null)
{
return bitmap;
}
}
else
{
return null;
}
// Get the raw bits for the hatch bitmap.
byte[] bits = GetBits(style);
if(bits == null)
{
return null;
}
// Create the bitmap, cache it for later, and then return it.
bitmap = new Xsharp.Bitmap(16, 16, bits);
hatchBitmaps[(int)style] = bitmap;
return bitmap;
}
/// <summary>
/// <para>Set the fill style mode to "solid".</para>
/// </summary>
public void SetFillSolid()
{
try
{
IntPtr display = Lock();
Xlib.XSetFillStyle
(display, gc, (int)(Xsharp.FillStyle.FillSolid));
if(tile != null)
{
Xlib.XSetTSOrigin(display, gc, 0, 0);
tile = null;
}
else if(stipple != null)
{
Xlib.XSetTSOrigin(display, gc, 0, 0);
stipple = null;
}
}
finally
{
dpy.Unlock();
}
}
/// <summary>
/// <para>Set the clip area to a bitmap mask, with a specified
/// clip origin.</para>
/// </summary>
///
/// <param name="mask">
/// <para>The mask to set, or <see langword="null"/> to clear the
/// clip mask.</para>
/// </param>
///
/// <param name="xorigin">
/// <para>The X co-ordinate of the clipping origin.</para>
/// </param>
///
/// <param name="yorigin">
/// <para>The Y co-ordinate of the clipping origin.</para>
/// </param>
///
/// <exception cref="T:Xsharp.XException">
/// <para>The <paramref name="xorigin"/> or <paramref name="yorigin"/>
/// value is out of range.</para>
/// </exception>
///
/// <exception cref="T:System.XInvalidOperationException">
/// <para>The <paramref name="mask"/> value is disposed.</para>
/// </exception>
public void SetClipMask(Bitmap mask, int xorigin, int yorigin)
{
if(xorigin < -32768 || xorigin > 32767 ||
yorigin < -32768 || yorigin > 32767)
{
throw new XException(S._("X_PointCoordRange"));
}
try
{
IntPtr display = Lock();
Xlib.XSetClipOrigin(display, gc, xorigin, yorigin);
if(mask != null)
{
Xlib.XSetClipMask(display, gc, mask.GetPixmapHandle());
}
else
{
Xlib.XSetClipMask(display, gc, XPixmap.Zero);
}
}
finally
{
dpy.Unlock();
}
}
/// <summary>
/// <para>Set the clip area to a bitmap mask</para>
/// </summary>
///
/// <param name="mask">
/// <para>The mask to set, or <see langword="null"/> to clear the
/// clip mask.</para>
/// </param>
///
/// <exception cref="T:System.XInvalidOperationException">
/// <para>The <paramref name="mask"/> value is disposed.</para>
/// </exception>
public void SetClipMask(Bitmap mask)
{
try
{
IntPtr display = Lock();
Xlib.XSetClipOrigin(display, gc, 0, 0);
if(mask != null)
{
Xlib.XSetClipMask(display, gc, mask.GetPixmapHandle());
}
else
{
Xlib.XSetClipMask(display, gc, XPixmap.Zero);
}
}
finally
{
dpy.Unlock();
}
}
/// <summary>
/// <para>Set the fill style mode to "opaque stippled", with a specific
/// stippling bitmap.</para>
/// </summary>
///
/// <param name="stipple">
/// <para>The stippling bitmap to use.</para>
/// </param>
///
/// <param name="xorigin">
/// <para>The X co-ordinate of the stippling origin.</para>
/// </param>
///
/// <param name="yorigin">
/// <para>The Y co-ordinate of the stippling origin.</para>
/// </param>
///
/// <exception cref="T:System.ArgumentNullException">
/// <para>The <paramref name="stipple"/> value is
/// <see langword="null"/>.</para>
/// </exception>
///
/// <exception cref="T:Xsharp.XException">
/// <para>The <paramref name="xorigin"/> or <paramref name="yorigin"/>
/// value is out of range.</para>
/// </exception>
///
/// <exception cref="T:System.XInvalidOperationException">
/// <para>The <paramref name="tile"/> value is disposed.</para>
/// </exception>
public void SetFillOpaqueStippled(Bitmap stipple, int xorigin, int yorigin)
{
if(stipple == null)
{
throw new ArgumentNullException("stipple");
}
if(xorigin < -32768 || xorigin > 32767 ||
yorigin < -32768 || yorigin > 32767)
{
throw new XException(S._("X_PointCoordRange"));
}
try
{
IntPtr display = Lock();
Xlib.XSetStipple(display, gc, stipple.GetPixmapHandle());
Xlib.XSetFillStyle
(display, gc,
(int)(Xsharp.FillStyle.FillOpaqueStippled));
Xlib.XSetTSOrigin(display, gc, xorigin, yorigin);
this.stipple = stipple;
tile = null;
}
finally
{
dpy.Unlock();
}
}
