static unsafe void DrawThumbnails(NanoVGContext vg, float x, float y, float w, float h, int[] images, int nimages, float t)
{
float cornerRadius = 3.0f;
NVGPaint shadowPaint, imgPaint, fadePaint;
float ix, iy, iw, ih;
float thumb = 60.0f;
float arry = 30.5f;
int imgw, imgh;
float stackh = (nimages / 2) * (thumb + 10) + 10;
int i;
float u = (1 + (float)Math.Cos(t * 0.5f)) * 0.5f;
float u2 = (1 - (float)Math.Cos(t * 0.2f)) * 0.5f;
float scrollh, dv;
NVG.Save(vg);
// nvgClearState(vg);
// Drop shadow
shadowPaint = NVG.BoxGradient(vg, x, y + 4, w, h, cornerRadius * 2, 20, NVG.RGBA(0, 0, 0, 128), NVG.RGBA(0, 0, 0, 0));
NVG.BeginPath(vg);
NVG.Rect(vg, x - 10, y - 10, w + 20, h + 30);
NVG.RoundedRect(vg, x, y, w, h, cornerRadius);
NVG.PathWinding(vg, NVGSolidity.NVG_HOLE);
NVG.FillPaint(vg, shadowPaint);
NVG.Fill(vg);
// Window
NVG.BeginPath(vg);
NVG.RoundedRect(vg, x, y, w, h, cornerRadius);
NVG.MoveTo(vg, x - 10, y + arry);
NVG.LineTo(vg, x + 1, y + arry - 11);
NVG.LineTo(vg, x + 1, y + arry + 11);
NVG.FillColor(vg, NVG.RGBA(200, 200, 200, 255));
NVG.Fill(vg);
NVG.Save(vg);
NVG.Scissor(vg, x, y, w, h);
NVG.Translate(vg, 0, -(stackh - h) * u);
dv = 1.0f / (float)(nimages - 1);
for (i = 0; i < nimages; i++)
{
float tx, ty, v, a;
tx = x + 10;
ty = y + 10;
tx += (i % 2) * (thumb + 10);
ty += (i / 2) * (thumb + 10);
NVG.ImageSize(vg, images[i], &imgw, &imgh);
if (imgw < imgh)
{
iw = thumb;
ih = iw * (float)imgh / (float)imgw;
ix = 0;
iy = -(ih - thumb) * 0.5f;
}
else
{
ih = thumb;
iw = ih * (float)imgw / (float)imgh;
ix = -(iw - thumb) * 0.5f;
iy = 0;
}
v = i * dv;
a = Math.Clamp((u2 - v) / dv, 0, 1);
if (a < 1.0f)
{
DrawSpinner(vg, tx + thumb / 2, ty + thumb / 2, thumb * 0.25f, t);
}
imgPaint = NVG.ImagePattern(vg, tx + ix, ty + iy, iw, ih, 0.0f / 180.0f * NVG_PI, images[i], a);
NVG.BeginPath(vg);
NVG.RoundedRect(vg, tx, ty, thumb, thumb, 5);
NVG.FillPaint(vg, imgPaint);
NVG.Fill(vg);
shadowPaint = NVG.BoxGradient(vg, tx - 1, ty, thumb + 2, thumb + 2, 5, 3, NVG.RGBA(0, 0, 0, 128), NVG.RGBA(0, 0, 0, 0));
NVG.BeginPath(vg);
NVG.Rect(vg, tx - 5, ty - 5, thumb + 10, thumb + 10);
NVG.RoundedRect(vg, tx, ty, thumb, thumb, 6);
NVG.PathWinding(vg, NVGSolidity.NVG_HOLE);
NVG.FillPaint(vg, shadowPaint);
NVG.Fill(vg);
NVG.BeginPath(vg);
NVG.RoundedRect(vg, tx + 0.5f, ty + 0.5f, thumb - 1, thumb - 1, 4 - 0.5f);
NVG.StrokeWidth(vg, 1.0f);
NVG.StrokeColor(vg, NVG.RGBA(255, 255, 255, 192));
NVG.Stroke(vg);
}
NVG.Restore(vg);
// Hide fades
fadePaint = NVG.LinearGradient(vg, x, y, x, y + 6, NVG.RGBA(200, 200, 200, 255), NVG.RGBA(200, 200, 200, 0));
NVG.BeginPath(vg);
NVG.Rect(vg, x + 4, y, w - 8, 6);
NVG.FillPaint(vg, fadePaint);
NVG.Fill(vg);
fadePaint = NVG.LinearGradient(vg, x, y + h, x, y + h - 6, NVG.RGBA(200, 200, 200, 255), NVG.RGBA(200, 200, 200, 0));
NVG.BeginPath(vg);
NVG.Rect(vg, x + 4, y + h - 6, w - 8, 6);
NVG.FillPaint(vg, fadePaint);
NVG.Fill(vg);
// Scroll bar
shadowPaint = NVG.BoxGradient(vg, x + w - 12 + 1, y + 4 + 1, 8, h - 8, 3, 4, NVG.RGBA(0, 0, 0, 32), NVG.RGBA(0, 0, 0, 92));
NVG.BeginPath(vg);
NVG.RoundedRect(vg, x + w - 12, y + 4, 8, h - 8, 3);
NVG.FillPaint(vg, shadowPaint);
// NVG.FillColor(vg, NVG.RGBA(255,0,0,128));
NVG.Fill(vg);
scrollh = (h / stackh) * (h - 8);
shadowPaint = NVG.BoxGradient(vg, x + w - 12 - 1, y + 4 + (h - 8 - scrollh) * u - 1, 8, scrollh, 3, 4, NVG.RGBA(220, 220, 220, 255), NVG.RGBA(128, 128, 128, 255));
NVG.BeginPath(vg);
NVG.RoundedRect(vg, x + w - 12 + 1, y + 4 + 1 + (h - 8 - scrollh) * u, 8 - 2, scrollh - 2, 2);
NVG.FillPaint(vg, shadowPaint);
// NVG.FillColor(vg, NVG.RGBA(0,0,0,128));
NVG.Fill(vg);
NVG.Restore(vg);
}