public void SetImage (Gdk.Pixbuf pbuf)
{
this.pbuf = pbuf;
SetPreferedSize (pbuf.Width, pbuf.Height);
if (surfaceCache != null)
surfaceCache.Dispose ();
surfaceCache = null;
}
protected override void OnRealized ()
{
base.OnRealized ();
using (Cairo.Context context = Gdk.CairoHelper.Create (GdkWindow)) {
primarySurface = new SurfaceWrapper (context, primary);
secondarySurface = new SurfaceWrapper (context, secondary);
}
primary.Dispose ();
primary = null;
secondary.Dispose ();
secondary = null;
}
protected override void OnRender (Cairo.Context context)
{
if (surfaceCache == null) {
// will improve with CGLayer surfaces
surfaceCache = new SurfaceWrapper (context, pbuf);
}
int x = (int)((Width - pbuf.Width) * XAlign);
int y = (int)((Height - pbuf.Height) * YAlign);
context.SetSourceSurface (surfaceCache.Surface, x, y);
double opacity = Opacity;
if (opacity == 1)
context.Paint ();
else
context.PaintWithAlpha (Opacity);
base.OnRender (context);
}
public static void CachedDraw(this Cairo.Context self, ref SurfaceWrapper surface, Gdk.Rectangle region,
object parameters = null, float opacity = 1.0f, Action <Cairo.Context, float> draw = null, double?forceScale = null)
{
double displayScale = forceScale.HasValue ? forceScale.Value : QuartzSurface.GetRetinaScale(self);
int targetWidth = (int)(region.Width * displayScale);
int targetHeight = (int)(region.Height * displayScale);
bool redraw = false;
if (surface == null || surface.Width != targetWidth || surface.Height != targetHeight)
{
if (surface != null)
{
surface.Dispose();
}
surface = new SurfaceWrapper(self, targetWidth, targetHeight);
redraw = true;
}
else if ((surface.Data == null && parameters != null) || (surface.Data != null && !surface.Data.Equals(parameters)))
{
redraw = true;
}
if (redraw)
{
surface.Data = parameters;
using (var context = new Cairo.Context(surface.Surface)) {
context.Operator = Operator.Clear;
context.Paint();
context.Operator = Operator.Over;
context.Save();
context.Scale(displayScale, displayScale);
draw(context, 1.0f);
context.Restore();
}
}
self.Save();
self.Translate(region.X, region.Y);
self.Scale(1 / displayScale, 1 / displayScale);
self.SetSourceSurface(surface.Surface, 0, 0);
self.PaintWithAlpha(opacity);
self.Restore();
}
public static void CachedDraw(this Cairo.Context self, ref SurfaceWrapper surface, Gdk.Point position, Gdk.Size size,
object parameters = null, float opacity = 1.0f, Action <Cairo.Context, float> draw = null, double?forceScale = null)
{
self.CachedDraw(ref surface, new Gdk.Rectangle(position, size), parameters, opacity, draw, forceScale);
}
public static void CachedDraw (this Cairo.Context self, ref SurfaceWrapper surface, Gdk.Rectangle region,
object parameters = null, float opacity = 1.0f, Action<Cairo.Context, float> draw = null, double? forceScale = null)
{
double displayScale = forceScale.HasValue ? forceScale.Value : QuartzSurface.GetRetinaScale (self);
int targetWidth = (int) (region.Width * displayScale);
int targetHeight = (int) (region.Height * displayScale);
bool redraw = false;
if (surface == null || surface.Width != targetWidth || surface.Height != targetHeight) {
if (surface != null)
surface.Dispose ();
surface = new SurfaceWrapper (self, targetWidth, targetHeight);
redraw = true;
} else if ((surface.Data == null && parameters != null) || (surface.Data != null && !surface.Data.Equals (parameters))) {
redraw = true;
}
if (redraw) {
surface.Data = parameters;
using (var context = new Cairo.Context (surface.Surface)) {
context.Operator = Operator.Clear;
context.Paint();
context.Operator = Operator.Over;
context.Save ();
context.Scale (displayScale, displayScale);
draw(context, 1.0f);
context.Restore ();
}
}
self.Save ();
self.Translate (region.X, region.Y);
self.Scale (1 / displayScale, 1 / displayScale);
self.SetSourceSurface (surface.Surface, 0, 0);
self.PaintWithAlpha (opacity);
self.Restore ();
}
public static void CachedDraw (this Cairo.Context self, ref SurfaceWrapper surface, Gdk.Point position, Gdk.Size size,
object parameters = null, float opacity = 1.0f, Action<Cairo.Context, float> draw = null, double? forceScale = null)
{
self.CachedDraw (ref surface, new Gdk.Rectangle (position, size), parameters, opacity, draw, forceScale);
}
public void QueueThreadedDraw (Action<Cairo.Context> drawCallback)
{
if (!owner.IsRealized)
return;
runningSignal.Wait ();
UpdateScale ();
if (surface == null || surface.Height != TargetHeight || surface.Width != TargetWidth) {
using (var similar = Gdk.CairoHelper.Create (owner.GdkWindow)) {
if (surface != null)
surface.Dispose ();
surface = new SurfaceWrapper (similar, TargetWidth, TargetHeight);
}
}
runningSignal.Reset ();
this.OnDraw (drawCallback);
//ThreadPool.QueueUserWorkItem (new WaitCallback (this.OnDraw), drawCallback);
owner.QueueDraw ();
}
void RenderIcon (Cairo.Context context, SurfaceWrapper surface, double opacity)
{
context.SetSourceSurface (surface.Surface,
Allocation.X + (Allocation.Width - surface.Width) / 2,
Allocation.Y + (Allocation.Height - surface.Height) / 2);
context.PaintWithAlpha (opacity);
}
void RenderPreview (Cairo.Context context, Gdk.Point position, double opacity)
{
if (brandedIcon != null) {
if (previewSurface == null) {
previewSurface = new SurfaceWrapper (context, brandedIcon);
}
double scale = PreviewSize / previewSurface.Width;
context.Save ();
context.Translate (position.X, position.Y);
context.Scale (scale * IconScale, scale * IconScale);
context.SetSourceSurface (previewSurface.Surface, -previewSurface.Width / 2, -previewSurface.Height / 2);
context.PaintWithAlpha (opacity);
context.Restore ();
}
}
public void Start ()
{
allocation = mode.Allocation;
var swapSurface = mode.swapIndicatorSurface;
if (swapSurface != null) {
if (swapSurface.Width == allocation.Width && swapSurface.Height == allocation.Height) {
surface = swapSurface;
} else {
mode.DestroyIndicatorSwapSurface ();
}
}
if (surface == null) {
using (var similiar = CairoHelper.Create (IdeApp.Workbench.RootWindow.GdkWindow))
surface = new SurfaceWrapper (similiar, allocation.Width, allocation.Height);
}
searchResults = mode.TextEditor.TextViewMargin.SearchResults.ToList().GetEnumerator ();
allUsages = mode.AllUsages.GetEnumerator ();
allTasks = mode.AllTasks.GetEnumerator ();
cr = new Cairo.Context (surface.Surface);
GLib.Idle.Add (RunHandler);
}
