Пример #1
0
        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);
        }
Пример #2
0
        static void DrawColorWheel(NanoVGContext vg, float x, float y, float w, float h, float t)
        {
            int      i;
            float    r0, r1, ax, ay, bx, by, cx, cy, aeps, r;
            float    hue = (float)Math.Sin(t * 0.12f);
            NVGPaint paint;

            NVG.Save(vg);

            cx   = x + w * 0.5f;
            cy   = y + h * 0.5f;
            r1   = (w < h ? w : h) * 0.5f - 5.0f;
            r0   = r1 - 20.0f;
            aeps = 0.5f / r1;               // half a pixel arc length in radians (2pi cancels out).

            for (i = 0; i < 6; i++)
            {
                float a0 = (float)i / 6.0f * (float)Math.PI * 2.0f - aeps;
                float a1 = (float)(i + 1.0f) / 6.0f * (float)Math.PI * 2.0f + aeps;
                NVG.BeginPath(vg);
                NVG.Arc(vg, cx, cy, r0, a0, a1, NVGWinding.NVG_CW);
                NVG.Arc(vg, cx, cy, r1, a1, a0, NVGWinding.NVG_CCW);
                NVG.ClosePath(vg);
                ax    = cx + (float)Math.Cos(a0) * (r0 + r1) * 0.5f;
                ay    = cy + (float)Math.Sin(a0) * (r0 + r1) * 0.5f;
                bx    = cx + (float)Math.Cos(a1) * (r0 + r1) * 0.5f;
                by    = cy + (float)Math.Sin(a1) * (r0 + r1) * 0.5f;
                paint = NVG.LinearGradient(vg, ax, ay, bx, by, NVG.HSLA(a0 / ((float)Math.PI * 2), 1.0f, 0.55f, 255), NVG.HSLA(a1 / ((float)Math.PI * 2), 1.0f, 0.55f, 255));
                NVG.FillPaint(vg, paint);
                NVG.Fill(vg);
            }

            NVG.BeginPath(vg);
            NVG.Circle(vg, cx, cy, r0 - 0.5f);
            NVG.Circle(vg, cx, cy, r1 + 0.5f);
            NVG.StrokeColor(vg, NVG.RGBA(0, 0, 0, 64));
            NVG.StrokeWidth(vg, 1.0f);
            NVG.Stroke(vg);

            // Selector
            NVG.Save(vg);
            NVG.Translate(vg, cx, cy);
            NVG.Rotate(vg, hue * (float)Math.PI * 2);

            // Marker on
            NVG.StrokeWidth(vg, 2.0f);
            NVG.BeginPath(vg);
            NVG.Rect(vg, r0 - 1, -3, r1 - r0 + 2, 6);
            NVG.StrokeColor(vg, NVG.RGBA(255, 255, 255, 192));
            NVG.Stroke(vg);

            paint = NVG.BoxGradient(vg, r0 - 3, -5, r1 - r0 + 6, 10, 2, 4, NVG.RGBA(0, 0, 0, 128), NVG.RGBA(0, 0, 0, 0));
            NVG.BeginPath(vg);
            NVG.Rect(vg, r0 - 2 - 10, -4 - 10, r1 - r0 + 4 + 20, 8 + 20);
            NVG.Rect(vg, r0 - 2, -4, r1 - r0 + 4, 8);
            NVG.PathWinding(vg, NVGSolidity.NVG_HOLE);
            NVG.FillPaint(vg, paint);
            NVG.Fill(vg);

            // Center triangle
            r  = r0 - 6;
            ax = (float)Math.Cos(120.0f / 180.0f * (float)Math.PI) * r;
            ay = (float)Math.Sin(120.0f / 180.0f * (float)Math.PI) * r;
            bx = (float)Math.Cos(-120.0f / 180.0f * (float)Math.PI) * r;
            by = (float)Math.Sin(-120.0f / 180.0f * (float)Math.PI) * r;
            NVG.BeginPath(vg);
            NVG.MoveTo(vg, r, 0);
            NVG.LineTo(vg, ax, ay);
            NVG.LineTo(vg, bx, by);
            NVG.ClosePath(vg);
            paint = NVG.LinearGradient(vg, r, 0, ax, ay, NVG.HSLA(hue, 1.0f, 0.5f, 255), NVG.RGBA(255, 255, 255, 255));
            NVG.FillPaint(vg, paint);
            NVG.Fill(vg);
            paint = NVG.LinearGradient(vg, (r + ax) * 0.5f, (0 + ay) * 0.5f, bx, by, NVG.RGBA(0, 0, 0, 0), NVG.RGBA(0, 0, 0, 255));
            NVG.FillPaint(vg, paint);
            NVG.Fill(vg);
            NVG.StrokeColor(vg, NVG.RGBA(0, 0, 0, 64));
            NVG.Stroke(vg);

            // Select circle on triangle
            ax = (float)Math.Cos(120.0f / 180.0f * (float)Math.PI) * r * 0.3f;
            ay = (float)Math.Sin(120.0f / 180.0f * (float)Math.PI) * r * 0.4f;
            NVG.StrokeWidth(vg, 2.0f);
            NVG.BeginPath(vg);
            NVG.Circle(vg, ax, ay, 5);
            NVG.StrokeColor(vg, NVG.RGBA(255, 255, 255, 192));
            NVG.Stroke(vg);

            paint = NVG.RadialGradient(vg, ax, ay, 7, 9, NVG.RGBA(0, 0, 0, 64), NVG.RGBA(0, 0, 0, 0));
            NVG.BeginPath(vg);
            NVG.Rect(vg, ax - 20, ay - 20, 40, 40);
            NVG.Circle(vg, ax, ay, 7);
            NVG.PathWinding(vg, NVGSolidity.NVG_HOLE);
            NVG.FillPaint(vg, paint);
            NVG.Fill(vg);

            NVG.Restore(vg);

            NVG.Restore(vg);
        }
Пример #3
0
 public static void Translate(float X, float Y)
 {
     NVG.Translate(Engine.NVGCtx, X, Y);
 }