/// <summary> /// User interfaces the piemenu. /// </summary> /// <returns>The piemenu.</returns> /// <param name="ctx">Context.</param> /// <param name="pos">Position.</param> /// <param name="radius">Radius.</param> /// <param name="icons">Icons.</param> /// <param name="item_count">Item count.</param> public static int ui_piemenu(this NuklearContext ctx, Vector2 pos, float radius, nk_image[] icons, int item_count) { var ret = -1; /* pie menu popup */ var border = ctx.style.window.border_color; var background = ctx.style.window.fixed_background; ctx.style.window.fixed_background = Nuklear.nk_style_item_hide(); ctx.style.window.border_color = Color.Transparent; var total_space = ctx.WindowGetContentRegion(); ctx.style.window.spacing = new Vector2(0, 0); ctx.style.window.padding = new Vector2(0, 0); if (ctx.PopupBegin(Nuklear.NK_POPUP_STATIC, "piemenu", Nuklear.NK_WINDOW_NO_SCROLLBAR, new RectangleF(pos.X - total_space.X - radius, pos.Y - radius - total_space.Y, 2 * radius, 2 * radius))) { var o = ctx.WindowGetCanvas(); var inp = ctx.input; total_space = ctx.WindowGetContentRegion(); ctx.style.window.spacing = new Vector2(4, 4); ctx.style.window.padding = new Vector2(8, 8); ctx.LayoutRowDynamic(total_space.Height, 1); var bounds = new RectangleF(); ctx.Widget(ref bounds); /* outer circle */ o.nk_fill_circle(bounds, new Color(50, 50, 50)); int active_item; { /* circle buttons */ var step = 2 * 3.141592654f / Math.Max(1, item_count); float a_min = 0; var a_max = step; var center = new Vector2(bounds.X + bounds.Width / 2.0f, bounds.Y + bounds.Height / 2.0f); var drag = new Vector2(inp.mouse.pos.X - center.X, inp.mouse.pos.Y - center.Y); var angle = (float)Math.Atan2(drag.Y, drag.X); if (angle < -0.0f) { angle += 2.0f * 3.141592654f; } active_item = (int)(angle / step); int i; for (i = 0; i < item_count; ++i) { RectangleF content; o.FillArc(center.X, center.Y, bounds.Width / 2.0f, a_min, a_max, active_item == i ? new Color(45, 100, 255) : new Color(60, 60, 60)); /* separator line */ var rx = bounds.Width / 2.0f; float ry = 0; var dx = rx * (float)Math.Cos(a_min) - ry * (float)Math.Sin(a_min); var dy = rx * (float)Math.Sin(a_min) + ry * (float)Math.Cos(a_min); o.StrokeLine(center.X, center.Y, center.X + dx, center.Y + dy, 1.0f, new Color(50, 50, 50)); /* button content */ var a = a_min + (a_max - a_min) / 2.0f; rx = bounds.Width / 2.5f; ry = 0; content.Width = 30; content.Height = 30; content.X = center.X + (rx * (float)Math.Cos(a) - ry * (float)Math.Sin(a) - content.Width / 2.0f); content.Y = center.Y + (rx * (float)Math.Sin(a) + ry * (float)Math.Cos(a) - content.Height / 2.0f); o.DrawImage(content, icons[i], Color.White); a_min = a_max; a_max += step; } } { /* inner circle */ RectangleF inner; inner.X = bounds.X + bounds.Width / 2 - bounds.Width / 4; inner.Y = bounds.Y + bounds.Height / 2 - bounds.Height / 4; inner.Width = bounds.Width / 2; inner.Height = bounds.Height / 2; o.nk_fill_circle(inner, new Color(45, 45, 45)); /* active icon content */ bounds.Width = inner.Width / 2.0f; bounds.Height = inner.Height / 2.0f; bounds.X = inner.X + inner.Width / 2 - bounds.Width / 2; bounds.Y = inner.Y + inner.Height / 2 - bounds.Height / 2; o.DrawImage(bounds, icons[active_item], Color.White); } ctx.LayoutSpaceEnd(); if (!Nuklear.nk_input_is_mouse_down(ctx.input, Nuklear.NK_BUTTON_RIGHT)) { ctx.PopupClose(); ret = active_item; } } else { ret = -2; } ctx.style.window.spacing = new Vector2(4, 4); ctx.style.window.padding = new Vector2(8, 8); ctx.PopupEnd(); ctx.style.window.fixed_background = background; ctx.style.window.border_color = border; return(ret); }
/// <summary> /// User interfaces the piemenu. /// </summary> /// <returns>The piemenu.</returns> /// <param name="ctx">Context.</param> /// <param name="pos">Position.</param> /// <param name="radius">Radius.</param> /// <param name="icons">Icons.</param> /// <param name="item_count">Item count.</param> public static int ui_piemenu(NuklearContext ctx, Nuklear.nk_vec2 pos, float radius, Nuklear.nk_image[] icons, int item_count) { var ret = -1; /* pie menu popup */ var border = ctx.Ctx.style.window.border_color; var background = ctx.Ctx.style.window.fixed_background; ctx.Ctx.style.window.fixed_background = Nuklear.nk_style_item_hide(); ctx.Ctx.style.window.border_color = Nuklear.nk_rgba(0, 0, 0, 0); var total_space = ctx.WindowGetContentRegion(); ctx.Ctx.style.window.spacing = Nuklear.nk_vec2_(0, 0); ctx.Ctx.style.window.padding = Nuklear.nk_vec2_(0, 0); if (ctx.PopupBegin(Nuklear.NK_POPUP_STATIC, "piemenu", Nuklear.NK_WINDOW_NO_SCROLLBAR, Nuklear.nk_rect_(pos.x - total_space.x - radius, pos.y - radius - total_space.y, 2 * radius, 2 * radius))) { var o = ctx.WindowGetCanvas(); var inp = ctx.Ctx.input; total_space = ctx.WindowGetContentRegion(); ctx.Ctx.style.window.spacing = Nuklear.nk_vec2_(4, 4); ctx.Ctx.style.window.padding = Nuklear.nk_vec2_(8, 8); ctx.LayoutRowDynamic(total_space.h, 1); Nuklear.nk_rect bounds; Nuklear.nk_widget(&bounds, ctx.Ctx); /* outer circle */ Nuklear.nk_fill_circle(o, bounds, Nuklear.nk_rgb(50, 50, 50)); int active_item; { /* circle buttons */ var step = 2 * 3.141592654f / Math.Max(1, item_count); float a_min = 0; var a_max = step; var center = Nuklear.nk_vec2_(bounds.x + bounds.w / 2.0f, bounds.y + bounds.h / 2.0f); var drag = Nuklear.nk_vec2_(inp.mouse.pos.x - center.x, inp.mouse.pos.y - center.y); var angle = (float)Math.Atan2(drag.y, drag.x); if (angle < -0.0f) { angle += 2.0f * 3.141592654f; } active_item = (int)(angle / step); int i; for (i = 0; i < item_count; ++i) { Nuklear.nk_rect content; Nuklear.nk_fill_arc(o, center.x, center.y, bounds.w / 2.0f, a_min, a_max, active_item == i ? Nuklear.nk_rgb(45, 100, 255) : Nuklear.nk_rgb(60, 60, 60)); /* separator line */ var rx = bounds.w / 2.0f; float ry = 0; var dx = rx * (float)Math.Cos(a_min) - ry * (float)Math.Sin(a_min); var dy = rx * (float)Math.Sin(a_min) + ry * (float)Math.Cos(a_min); Nuklear.nk_stroke_line(o, center.x, center.y, center.x + dx, center.y + dy, 1.0f, Nuklear.nk_rgb(50, 50, 50)); /* button content */ var a = a_min + (a_max - a_min) / 2.0f; rx = bounds.w / 2.5f; ry = 0; content.w = 30; content.h = 30; content.x = center.x + (rx * (float)Math.Cos(a) - ry * (float)Math.Sin(a) - content.w / 2.0f); content.y = center.y + (rx * (float)Math.Sin(a) + ry * (float)Math.Cos(a) - content.h / 2.0f); Nuklear.nk_draw_image(o, content, icons[i], Nuklear.nk_rgb(255, 255, 255)); a_min = a_max; a_max += step; } } { /* inner circle */ Nuklear.nk_rect inner; inner.x = bounds.x + bounds.w / 2 - bounds.w / 4; inner.y = bounds.y + bounds.h / 2 - bounds.h / 4; inner.w = bounds.w / 2; inner.h = bounds.h / 2; Nuklear.nk_fill_circle(o, inner, Nuklear.nk_rgb(45, 45, 45)); /* active icon content */ bounds.w = inner.w / 2.0f; bounds.h = inner.h / 2.0f; bounds.x = inner.x + inner.w / 2 - bounds.w / 2; bounds.y = inner.y + inner.h / 2 - bounds.h / 2; Nuklear.nk_draw_image(o, bounds, icons[active_item], Nuklear.nk_rgb(255, 255, 255)); } ctx.LayoutSpaceEnd(); if (Nuklear.nk_input_is_mouse_down(ctx.Ctx.input, Nuklear.NK_BUTTON_RIGHT) == 0) { ctx.PopupClose(); ret = active_item; } } else { ret = -2; } ctx.Ctx.style.window.spacing = Nuklear.nk_vec2_(4, 4); ctx.Ctx.style.window.padding = Nuklear.nk_vec2_(8, 8); ctx.PopupEnd(); ctx.Ctx.style.window.fixed_background = background; ctx.Ctx.style.window.border_color = border; return(ret); }