public static Gdk.Pixbuf FadeIcon(Gdk.Pixbuf source)
{
Gdk.Pixbuf result = source.Copy ();
result.Fill (0);
result = result.AddAlpha (true, 0, 0, 0);
source.Composite (result, 0, 0, source.Width, source.Height, 0, 0, 1, 1, Gdk.InterpType.Bilinear, 128);
return result;
}
public CrossfadeIcon (Gdk.Pixbuf primary, Gdk.Pixbuf secondary)
{
if (primary == null)
throw new ArgumentNullException ("primary");
if (secondary == null)
throw new ArgumentNullException ("secondary");
this.primary = primary.Copy ();
this.secondary = secondary.Copy ();
}
public override void BuildNode (ITreeBuilder treeBuilder, object dataObject, ref string label, ref Gdk.Pixbuf icon, ref Gdk.Pixbuf closedIcon)
{
ProjectFile file = (ProjectFile) dataObject;
label = file.Link.IsNullOrEmpty ? file.FilePath.FileName : file.Link.FileName;
if (!File.Exists (file.FilePath)) {
label = "<span foreground='red'>" + label + "</span>";
}
icon = DesktopService.GetPixbufForFile (file.FilePath, Gtk.IconSize.Menu);
if (file.IsLink && icon != null) {
icon = icon.Copy ();
using (Gdk.Pixbuf overlay = Gdk.Pixbuf.LoadFromResource ("Icons.16x16.LinkOverlay.png")) {
overlay.Composite (icon,
0, 0,
icon.Width, icon.Width,
0, 0,
1, 1, Gdk.InterpType.Bilinear, 255);
}
}
}
/// <summary>
/// This creates a new gray scale pixbuf. Note that this pixbuf needs to be disposed.
/// </summary>
/// <param name="icon">
/// A <see cref="Gdk.Pixbuf"/>.
/// </param>
/// <returns>
/// A <see cref="Gdk.Pixbuf"/> gray scale version of "icon".
/// </returns>
public static Gdk.Pixbuf MakeGrayscale (Gdk.Pixbuf icon)
{
Gdk.Pixbuf copy = icon.Copy ();
copy.SaturateAndPixelate (copy, 0, false);
return copy;
}
public static Gdk.Pixbuf MakeTransparent (Gdk.Pixbuf icon, double opacity)
{
Gdk.Pixbuf result = icon.Copy ();
result.Fill (0);
result = result.AddAlpha (true, 0, 0, 0);
icon.Composite (result, 0, 0, icon.Width, icon.Height, 0, 0, 1, 1, Gdk.InterpType.Bilinear, (int)(256 * opacity));
return result;
}
public unsafe static Gdk.Pixbuf RemoveRedeye (Gdk.Pixbuf src, Gdk.Rectangle area, int threshold)
//threshold, factors and comparisons borrowed from the gimp plugin 'redeye.c' by Robert Merkel
#endif
{
Gdk.Pixbuf copy = src.Copy ();
Gdk.Pixbuf selection = new Gdk.Pixbuf (copy, area.X, area.Y, area.Width, area.Height);
#if OLREDEYE
f_pixbuf_remove_redeye (selection.Handle);
selection.Dispose ();
#else
byte *spix = (byte *)selection.Pixels;
int h = selection.Height;
int w = selection.Width;
int channels = src.NChannels;
double RED_FACTOR = 0.5133333;
double GREEN_FACTOR = 1;
double BLUE_FACTOR = 0.1933333;
for (int j = 0; j < h; j++) {
byte *s = spix;
for (int i = 0; i < w; i++) {
int adjusted_red = (int)(s[0] * RED_FACTOR);
int adjusted_green = (int)(s[1] * GREEN_FACTOR);
int adjusted_blue = (int)(s[2] * BLUE_FACTOR);
if (adjusted_red >= adjusted_green - threshold
&& adjusted_red >= adjusted_blue - threshold)
s[0] = (byte)(((double)(adjusted_green + adjusted_blue)) / (2.0 * RED_FACTOR));
s += channels;
}
spix += selection.Rowstride;
}
#endif
return copy;
}
public override void BuildNode (ITreeBuilder treeBuilder, object dataObject, ref string label, ref Gdk.Pixbuf icon, ref Gdk.Pixbuf closedIcon)
{
ProjectFile file = (ProjectFile) dataObject;
label = GLib.Markup.EscapeText (file.Link.IsNullOrEmpty ? file.FilePath.FileName : file.Link.FileName);
if (!File.Exists (file.FilePath)) {
label = "<span foreground='red'>" + label + "</span>";
}
icon = DesktopService.GetPixbufForFile (file.FilePath, Gtk.IconSize.Menu);
if (file.IsLink && icon != null) {
var overlay = ImageService.GetPixbuf ("md-link-overlay", Gtk.IconSize.Menu);
var cached = Context.GetComposedIcon (icon, overlay);
if (cached != null)
icon = cached;
else {
var res = icon.Copy ();
overlay.Composite (res,
0, 0,
icon.Width, icon.Width,
0, 0,
1, 1, Gdk.InterpType.Bilinear, 255);
Context.CacheComposedIcon (icon, overlay, res);
icon = res;
}
}
}
//threshold, factors and comparisons borrowed from the gimp plugin 'redeye.c' by Robert Merkel
public static unsafe Gdk.Pixbuf RemoveRedeye(Gdk.Pixbuf src, Gdk.Rectangle area, int threshold = -15)
{
Gdk.Pixbuf copy = src.Copy ();
Gdk.Pixbuf selection = new Gdk.Pixbuf (copy, area.X, area.Y, area.Width, area.Height);
byte * spix = (byte *)selection.Pixels;
int h = selection.Height;
int w = selection.Width;
int channels = src.NChannels;
double RED_FACTOR = 0.5133333;
double GREEN_FACTOR = 1;
double BLUE_FACTOR = 0.1933333;
for (int j = 0; j < h; j++) {
byte * s = spix;
for (int i = 0; i < w; i++) {
int adjusted_red = (int)(s [0] * RED_FACTOR);
int adjusted_green = (int)(s [1] * GREEN_FACTOR);
int adjusted_blue = (int)(s [2] * BLUE_FACTOR);
if (adjusted_red >= adjusted_green - threshold
&& adjusted_red >= adjusted_blue - threshold)
s [0] = (byte)(((double)(adjusted_green + adjusted_blue)) / (2.0 * RED_FACTOR));
s += channels;
}
spix += selection.Rowstride;
}
return copy;
}
public Gdk.Pixbuf MakeTransparent(Gdk.Pixbuf icon, double opacity)
{
// If somebody knows a better way of doing this, please redo.
Gdk.Pixbuf gicon = icon.Copy ();
gicon.Fill (0);
gicon = gicon.AddAlpha (true,0,0,0);
icon.Composite (gicon, 0, 0, icon.Width, icon.Height, 0, 0, 1, 1, Gdk.InterpType.Bilinear, (int)(256 * opacity));
return gicon;
}
public static Gdk.Pixbuf MakeInverted(Gdk.Pixbuf icon)
{
if (icon.BitsPerSample != 8)
throw new NotSupportedException ();
Gdk.Pixbuf copy = icon.Copy ();
unsafe {
byte* pix = (byte*)copy.Pixels;
bool hasAlpha = copy.HasAlpha;
for (int y = 0; y < copy.Height; y++) {
var start = pix;
for (int x = 0; x < copy.Width; x++) {
pix [0] = (byte)~pix [0];
pix [1] = (byte)~pix [1];
pix [2] = (byte)~pix [2];
pix += hasAlpha ? 4 : 3;
}
pix = start + copy.Rowstride;
}
}
return copy;
}
Gdk.Pixbuf ExpandImageVertically (Gdk.Pixbuf img, int newHeight)
{
if (newHeight <= img.Height)
return img.Copy ();
var res = new Gdk.Pixbuf (img.Colorspace, img.HasAlpha, img.BitsPerSample, img.Width, newHeight);
var h1 = img.Height / 2;
var h2 = img.Height - h1;
res.Fill (0xff000000);
img.Composite (res, 0, h1, res.Width, newHeight - img.Height, 0, 0, 1, (double)newHeight / (double)img.Height, InterpType.Bilinear, 255);
img.Composite (res, 0, 0, img.Width, h1, 0, 0, 1, 1, InterpType.Bilinear, 255);
img.Composite (res, 0, newHeight - h2, img.Width, h2, 0, newHeight - img.Height, 1, 1, InterpType.Bilinear, 255);
return res;
}
/// <summary>
/// This creates a new gray scale pixbuf. Note that this pixbuf needs to be disposed.
/// </summary>
/// <param name="icon">
/// A <see cref="Gdk.Pixbuf"/>.
/// </param>
/// <returns>
/// A <see cref="Gdk.Pixbuf"/> gray scale version of "icon".
/// </returns>
public static Gdk.Pixbuf MakeGrayscale (Gdk.Pixbuf icon)
{
Gdk.Pixbuf copy = icon.Copy ();
copy.SaturateAndPixelate (copy, 0, false);
var icon2x = Get2xIconVariant (icon);
if (icon2x != null)
Set2xIconVariant (copy, MakeGrayscale (icon2x));
return copy;
}
public override void BuildNode(ITreeBuilder builder, object dataObject, ref string label, ref Gdk.Pixbuf icon, ref Gdk.Pixbuf closedIcon)
{
// Add status overlays
if (!(dataObject is ProjectFile)) return;
if (!builder.Options["ShowVersionControlOverlays"])
return;
ProjectFile file = (ProjectFile) dataObject;
// TODO: Monitor changes not just to project files
// but also to .svn directories to catch commits
// and updates.
WatchProject(file.Project);
// When a file had a status and later has no status,
// for whatever reason, it needs to be removed from the hashtable.
fileStatus.Remove(file.FilePath);
try {
NodeStatus status = GetStatus(file.FilePath);
if (status == NodeStatus.Unknown) return;
fileStatus[file.FilePath] = status;
Gdk.Pixbuf overlay = VersionControlService.LoadIconForStatus(status);
double scale = (double)(2*icon.Width/3) / (double)overlay.Width;
int w = (int)(overlay.Width*scale);
int h = (int)(overlay.Height*scale);
icon = icon.Copy();
overlay.Composite(icon,
icon.Width-w, icon.Height-h,
w, h,
icon.Width-w, icon.Height-h,
scale,scale, Gdk.InterpType.Bilinear, 255);
} catch (Exception e) {
}
}