| public Translate ( double tx, double ty ) : void | ||
| tx | double | |
| ty | double | |
| Результат | void | |
public static Matrix GetTransform(this Node node)
{
double anchorX = node.AnchorX * node.Width;
double anchorY = node.AnchorY * node.Height;
Matrix transform = new Matrix ();
transform.Translate (node.X + anchorX, node.Y + anchorY);
transform.Rotate (node.Rotation);
transform.Scale (node.Scale, node.Scale);
transform.Translate (-anchorX, -anchorY);
return transform;
}
public static void SetSourceDrawable (Context ctx, Gdk.Drawable d, double x, double y)
{
try {
gdk_cairo_set_source_pixmap (ctx.Handle, d.Handle, x, y);
} catch (EntryPointNotFoundException) {
int width, height;
d.GetSize (out width, out height);
XlibSurface surface = new XlibSurface (GdkUtils.GetXDisplay (d.Display),
(IntPtr)GdkUtils.GetXid (d),
GdkUtils.GetXVisual (d.Visual),
width, height);
SurfacePattern p = new SurfacePattern (surface);
Matrix m = new Matrix ();
m.Translate (-x, -y);
p.Matrix = m;
ctx.Source = p;
}
}
public bool OnExpose(Context ctx, Gdk.Rectangle viewport)
{
double percent = Math.Min ((DateTime.UtcNow - start).Ticks / (double) duration.Ticks, 1.0);
frames ++;
//ctx.Matrix = m;
SurfacePattern p = new SurfacePattern (buffer.Surface);
p.Filter = Filter.Fast;
Matrix m = new Matrix ();
m.Translate (pan_x * zoom, pan_y * zoom);
m.Scale (zoom, zoom);
zoom *= .98;
p.Matrix = m;
ctx.Source = p;
ctx.Paint ();
p.Destroy ();
return percent < 1.0;
}
public bool OnExpose(Context ctx, Gdk.Rectangle viewport)
{
double percent = Math.Min ((DateTime.UtcNow - start).Ticks / (double) duration.Ticks, 1.0);
//Matrix m = info.Fill (allocation);
Matrix m = new Matrix ();
m.Translate (pan_x, pan_y);
m.Scale (zoom, zoom);
ctx.Matrix = m;
SurfacePattern p = new SurfacePattern (info.Surface);
ctx.Source = p;
ctx.Paint ();
p.Destroy ();
return percent < 1.0;
}
private Surface CreateScene (Cairo.Context window_cr, ImageSurface image, int reflect)
{
Surface surface = window_cr.Target.CreateSimilar (window_cr.Target.Content,
image.Width, image.Height + reflect);
Cairo.Context cr = new Context (surface);
cr.Save ();
cr.SetSource (image);
cr.Paint ();
cr.Rectangle (0, image.Height, image.Width, reflect);
cr.Clip ();
Matrix matrix = new Matrix ();
matrix.InitScale (1, -1);
matrix.Translate (0, -(2 * image.Height) + 1);
cr.Transform (matrix);
cr.SetSource (image);
cr.Paint ();
cr.Restore ();
Color bg_transparent = BackgroundColor;
bg_transparent.A = 0.65;
LinearGradient mask = new LinearGradient (0, image.Height, 0, image.Height + reflect);
mask.AddColorStop (0, bg_transparent);
mask.AddColorStop (1, BackgroundColor);
cr.Rectangle (0, image.Height, image.Width, reflect);
cr.Pattern = mask;
cr.Fill ();
((IDisposable)cr).Dispose ();
return surface;
}
public void Rotate (double angle, Size new_size)
{
double radians = (angle / 180d) * Math.PI;
var old_size = PintaCore.Workspace.ImageSize;
var xform = new Matrix ();
xform.Translate (new_size.Width / 2.0, new_size.Height / 2.0);
xform.Rotate (radians);
xform.Translate (-old_size.Width / 2.0, -old_size.Height / 2.0);
ApplyTransform (xform, new_size);
}
public Matrix Fit(Gdk.Rectangle viewport)
{
Matrix m = new Matrix ();
m.InitIdentity ();
double scale = Math.Min (viewport.Width / (double) Bounds.Width,
viewport.Height / (double) Bounds.Height);
double x_offset = (viewport.Width - Bounds.Width * scale) / 2.0;
double y_offset = (viewport.Height - Bounds.Height * scale) / 2.0;
m.Translate (x_offset, y_offset);
m.Scale (scale, scale);
return m;
}
//
// this functions calculates the transformation needed to center and completely fill the
// viewport with the Surface at the given tilt
//
public Matrix Fill(Gdk.Rectangle viewport, double tilt)
{
if (tilt == 0.0)
return Fill (viewport);
Matrix m = new Matrix ();
m.InitIdentity ();
double len;
double orig_len;
if (Bounds.Width > Bounds.Height) {
len = viewport.Height;
orig_len = Bounds.Height;
} else {
len = viewport.Width;
orig_len = Bounds.Width;
}
double a = Math.Sqrt (viewport.Width * viewport.Width + viewport.Height * viewport.Height);
double alpha = Math.Acos (len / a);
double theta = alpha - Math.Abs (tilt);
double slen = a * Math.Cos (theta);
double scale = slen / orig_len;
double x_offset = (viewport.Width - Bounds.Width * scale) / 2.0;
double y_offset = (viewport.Height - Bounds.Height * scale) / 2.0;
m.Translate (x_offset, y_offset);
m.Scale (scale, scale);
m.Invert ();
m.Translate (viewport.Width * 0.5, viewport.Height * 0.5);
m.Rotate (tilt);
m.Translate (viewport.Width * -0.5, viewport.Height * -0.5);
m.Invert ();
return m;
}
public static Matrix ViewToControlMatrix(Rectangle controlBounds,
Rectangle view,
double settingsWidth,
double settingsHeight)
{
var m = new Matrix ();
m.Translate (view.X - controlBounds.X, view.Y - controlBounds.Y);
m.Scale (view.Width / settingsWidth, view.Height / settingsHeight);
return m;
}
private Surface CreateScene(Cairo.Context window_cr, ImageSurface image, int reflect)
{
var target = window_cr.GetTarget ();
Surface surface = target.CreateSimilar (target.Content,
image.Width, image.Height + reflect);
using (var cr = new Context (surface)) {
cr.Save ();
cr.SetSource (image);
cr.Paint ();
cr.Rectangle (0, image.Height, image.Width, reflect);
cr.Clip ();
Matrix matrix = new Matrix ();
matrix.InitScale (1, -1);
matrix.Translate (0, -(2 * image.Height) + 1);
cr.Transform (matrix);
cr.SetSource (image);
cr.Paint ();
cr.Restore ();
Color bg_transparent = BackgroundColor;
bg_transparent.A = 0.65;
using (var mask = new LinearGradient (0, image.Height, 0, image.Height + reflect)) {
mask.AddColorStop (0, bg_transparent);
mask.AddColorStop (1, BackgroundColor);
cr.Rectangle (0, image.Height, image.Width, reflect);
cr.SetSource (mask);
cr.Fill ();
}
}
return surface;
}
protected override bool OnExposeEvent (Gdk.EventExpose evnt)
{
if (evnt.Window != GdkWindow) {
return base.OnExposeEvent (evnt);
}
Cairo.Context cr = Gdk.CairoHelper.Create (evnt.Window);
if (reflect) {
CairoExtensions.PushGroup (cr);
}
cr.Operator = Operator.Over;
cr.Translate (Allocation.X + h_padding, Allocation.Y);
cr.Rectangle (0, 0, Allocation.Width - h_padding, Math.Max (2 * bar_height,
bar_height + bar_label_spacing + layout_height));
cr.Clip ();
Pattern bar = RenderBar (Allocation.Width - 2 * h_padding, bar_height);
cr.Save ();
cr.SetSource (bar);
cr.Paint ();
cr.Restore ();
if (reflect) {
cr.Save ();
cr.Rectangle (0, bar_height, Allocation.Width - h_padding, bar_height);
cr.Clip ();
Matrix matrix = new Matrix ();
matrix.InitScale (1, -1);
matrix.Translate (0, -(2 * bar_height) + 1);
cr.Transform (matrix);
cr.SetSource (bar);
LinearGradient mask = new LinearGradient (0, 0, 0, bar_height);
mask.AddColorStop (0.25, new Color (0, 0, 0, 0));
mask.AddColorStop (0.5, new Color (0, 0, 0, 0.125));
mask.AddColorStop (0.75, new Color (0, 0, 0, 0.4));
mask.AddColorStop (1.0, new Color (0, 0, 0, 0.7));
cr.Mask (mask);
mask.Dispose ();
cr.Restore ();
CairoExtensions.PopGroupToSource (cr);
cr.Paint ();
}
if (show_labels) {
cr.Translate ((reflect ? Allocation.X : -h_padding) + (Allocation.Width - layout_width) / 2,
(reflect ? Allocation.Y : 0) + bar_height + bar_label_spacing);
RenderLabels (cr);
}
bar.Dispose ();
CairoExtensions.DisposeContext (cr);
return true;
}
private static Matrix ComputeMatrix (RotateZoomData data)
{
var xform = new Matrix ();
var image_size = PintaCore.Workspace.ImageSize;
var center_x = image_size.Width / 2.0;
var center_y = image_size.Height / 2.0;
xform.Translate ((1 + data.Pan.X) * center_x, (1 + data.Pan.Y) * center_y);
xform.Rotate ((-data.Angle / 180d) * Math.PI);
xform.Scale (data.Zoom, data.Zoom);
xform.Translate (-center_x, -center_y);
return xform;
}
protected override bool OnDrawn(Cairo.Context cr)
{
if (!CairoHelper.ShouldDrawWindow (cr, Window)) {
return base.OnDrawn (cr);
}
if (reflect) {
CairoExtensions.PushGroup (cr);
}
cr.Operator = Operator.Over;
cr.Translate (h_padding, 0);
cr.Rectangle (0, 0, Allocation.Width - h_padding, Math.Max (2 * bar_height,
bar_height + bar_label_spacing + layout_height));
cr.Clip ();
Pattern bar = RenderBar (Allocation.Width - 2 * h_padding, bar_height);
cr.Save ();
cr.Source = bar;
cr.Paint ();
cr.Restore ();
if (reflect) {
cr.Save ();
cr.Rectangle (0, bar_height, Allocation.Width - h_padding, bar_height);
cr.Clip ();
Matrix matrix = new Matrix ();
matrix.InitScale (1, -1);
matrix.Translate (0, -(2 * bar_height) + 1);
cr.Transform (matrix);
cr.Pattern = bar;
LinearGradient mask = new LinearGradient (0, 0, 0, bar_height);
mask.AddColorStop (0.25, new Color (0, 0, 0, 0));
mask.AddColorStop (0.5, new Color (0, 0, 0, 0.125));
mask.AddColorStop (0.75, new Color (0, 0, 0, 0.4));
mask.AddColorStop (1.0, new Color (0, 0, 0, 0.7));
cr.Mask (mask);
mask.Destroy ();
cr.Restore ();
CairoExtensions.PopGroupToSource (cr);
cr.Paint ();
}
if (show_labels) {
cr.Translate ((reflect ? 0 : -h_padding) + (Allocation.Width - layout_width) / 2,
bar_height + bar_label_spacing);
RenderLabels (cr);
}
bar.Destroy ();
return true;
}
