public void Draw()
{
BeginDraw();
// ushort* offset = null;
_cmds.Reset();
_vertices.Reset();
_indices.Reset();
Convert(_cmds, _vertices, _indices, _convertConfig);
var vertexCount = (uint)((ulong)_vertices.Count / _convertConfig.VertexSize);
/* iterate over and execute each draw command */
uint offset = 0;
SetBuffers(_vertices.Data, _indices.Data, _indices.Count, (int)vertexCount);
for (var i = 0; i < _cmds.Count; ++i)
{
var cmd = _cmds[i];
if (cmd.elem_count == 0)
{
continue;
}
Draw((int)cmd.clip_rect.x, (int)cmd.clip_rect.y, (int)cmd.clip_rect.w, (int)cmd.clip_rect.h,
cmd.texture.id, (int)offset, (int)(cmd.elem_count / 3));
offset += cmd.elem_count;
}
Nk.nk_clear(_ctx);
EndDraw();
}
private NkImage LoadImage(string path)
{
using (var stream = File.OpenRead(GetAssetPath(path)))
{
var texture = Texture2D.FromStream(GraphicsDevice, stream);
var result = Nk.nk_image_id(_contextWrapper.CreateTexture(texture));
result.w = (ushort)texture.Width;
result.h = (ushort)texture.Height;
return(result);
}
}
protected BaseContext()
{
_ctx = new NkContext();
Nk.nk_setup(_ctx, null);
_convertConfig = new NkConvertConfig
{
VertexAlignment = 4,
GlobalAlpha = 1f,
ShapeAa = true,
LineAa = true,
CircleSegmentCount = 22,
CurveSegmentCount = 22,
ArcSegmentCount = 22
};
}
/// <summary>
/// Grids the demo.
/// </summary>
/// <param name="ctx">Context.</param>
/// <param name="media">Media.</param>
public static void grid_demo(NuklearContext ctx, Media media)
{
int i;
ctx.StyleSetFont(media.Font20.Handle);
if (ctx.Begin("Grid Demo", Nk.nk_rect_(600, 350, 275, 250),
PanelFlags.TITLE | PanelFlags.BORDER | PanelFlags.MOVABLE |
PanelFlags.NO_SCROLLBAR))
{
ctx.StyleSetFont(media.Font18.Handle);
ctx.LayoutRowDynamic(30, 2);
ctx.Label("String:", Alignment.MIDDLERIGHT);
ctx.EditString(NkEditFlags.FIELD, ref EditStrings[0], 64, Nk.nk_filter_default);
ctx.Label("Floating point:", Alignment.MIDDLERIGHT);
ctx.EditString(NkEditFlags.FIELD, ref EditStrings[1], 64, Nk.nk_filter_float);
ctx.Label("Hexadecimal:", Alignment.MIDDLERIGHT);
ctx.EditString(NkEditFlags.FIELD, ref EditStrings[2], 64, Nk.nk_filter_hex);
ctx.Label("Binary:", Alignment.MIDDLERIGHT);
ctx.EditString(NkEditFlags.FIELD, ref EditStrings[3], 64, Nk.nk_filter_binary);
ctx.Label("Checkbox:", Alignment.MIDDLERIGHT);
ctx.CheckboxLabel("Check me", ref _gridCheck);
ctx.Label("Combobox:", Alignment.MIDDLERIGHT);
if (ctx.ComboBeginLabel(Items[_selectedItem2], Nk.nk_vec2_(ctx.WidgetWidth(), 200)))
{
ctx.LayoutRowDynamic(25, 1);
for (i = 0; i < 3; ++i)
{
if (ctx.ComboItemLabel(Items[i], Alignment.MIDDLELEFT))
{
_selectedItem2 = i;
}
}
ctx.ComboEnd();
}
}
ctx.End();
ctx.StyleSetFont(media.Font14.Handle);
}
public void SetFont(NkFont font)
{
Nk.nk_style_set_font(_ctx, font.Handle);
}
/// <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, NkVec2 pos, float radius,
NkImage[] icons, int itemCount)
{
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 = Nk.nk_style_item_hide();
ctx.Ctx.Style.Window.border_color = Nk.nk_rgba(0, 0, 0, 0);
var totalSpace = ctx.WindowGetContentRegion();
ctx.Ctx.Style.Window.spacing = Nk.nk_vec2_(0, 0);
ctx.Ctx.Style.Window.padding = Nk.nk_vec2_(0, 0);
if (ctx.PopupBegin(NkPopupType.NK_POPUP_STATIC, "piemenu", PanelFlags.NO_SCROLLBAR,
Nk.nk_rect_(pos.x - totalSpace.x - radius, pos.y - radius - totalSpace.y,
2 * radius, 2 * radius)))
{
var o = ctx.WindowGetCanvas();
var inp = ctx.Ctx.Input;
totalSpace = ctx.WindowGetContentRegion();
ctx.Ctx.Style.Window.spacing = Nk.nk_vec2_(4, 4);
ctx.Ctx.Style.Window.padding = Nk.nk_vec2_(8, 8);
ctx.LayoutRowDynamic(totalSpace.h, 1);
NkRect bounds;
Nk.nk_widget(&bounds, ctx.Ctx);
/* outer circle */
Nk.nk_fill_circle(o, bounds, Nk.nk_rgb(50, 50, 50));
int activeItem;
{
/* circle buttons */
var step = 2 * 3.141592654f / Math.Max(1, itemCount);
float aMin = 0;
var aMax = step;
var center = Nk.nk_vec2_(bounds.x + bounds.w / 2.0f, bounds.y + bounds.h / 2.0f);
var drag = Nk.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;
}
activeItem = (int)(angle / step);
int i;
for (i = 0; i < itemCount; ++i)
{
NkRect content;
Nk.nk_fill_arc(o, center.x, center.y, bounds.w / 2.0f,
aMin, aMax, activeItem == i ? Nk.nk_rgb(45, 100, 255) : Nk.nk_rgb(60, 60, 60));
/* separator line */
var rx = bounds.w / 2.0f;
float ry = 0;
var dx = rx * (float)Math.Cos(aMin) - ry * (float)Math.Sin(aMin);
var dy = rx * (float)Math.Sin(aMin) + ry * (float)Math.Cos(aMin);
Nk.nk_stroke_line(o, center.x, center.y,
center.x + dx, center.y + dy, 1.0f, Nk.nk_rgb(50, 50, 50));
/* button content */
var a = aMin + (aMax - aMin) / 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);
Nk.nk_draw_image(o, content, icons[i], Nk.nk_rgb(255, 255, 255));
aMin = aMax;
aMax += step;
}
}
{
/* inner circle */
NkRect 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;
Nk.nk_fill_circle(o, inner, Nk.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;
Nk.nk_draw_image(o, bounds, icons[activeItem], Nk.nk_rgb(255, 255, 255));
}
ctx.LayoutSpaceEnd();
if (Nk.nk_input_is_mouse_down(ctx.Ctx.Input, NkButtons.RIGHT) == 0)
{
ctx.PopupClose();
ret = activeItem;
}
}
else
{
ret = -2;
}
ctx.Ctx.Style.Window.spacing = Nk.nk_vec2_(4, 4);
ctx.Ctx.Style.Window.padding = Nk.nk_vec2_(8, 8);
ctx.PopupEnd();
ctx.Ctx.Style.Window.fixed_background = background;
ctx.Ctx.Style.Window.border_color = border;
return(ret);
}
public static void basic_demo(NuklearContext ctx, Media media)
{
int i;
ctx.StyleSetFont(media.Font20.Handle);
ctx.Begin("Basic Demo", Nk.nk_rect_(320, 50, 275, 610),
PanelFlags.BORDER | PanelFlags.MOVABLE | PanelFlags.TITLE);
ui_header(ctx, media, "Popup & Scrollbar & Images");
ui_widget(ctx, media, 35);
if (ctx.ButtonImageLabel(media.Dir, "Images", Alignment.MIDDLECENTERED))
{
_imageActive = !_imageActive;
}
ui_header(ctx, media, "Selected Image");
ui_widget_centered(ctx, media, 100);
ctx.Image(media.Images[_selectedImage]);
if (_imageActive)
{
if (ctx.PopupBegin(NkPopupType.NK_POPUP_STATIC, "Image Popup", 0, Nk.nk_rect_(265, 0, 320, 220)))
{
ctx.LayoutRowStatic(82, 82, 3);
for (i = 0; i < 9; ++i)
{
if (ctx.ButtonImage(media.Images[i]))
{
_selectedImage = i;
_imageActive = false;
ctx.PopupClose();
}
}
ctx.PopupEnd();
}
}
ui_header(ctx, media, "Combo box");
ui_widget(ctx, media, 40);
if (ctx.ComboBeginLabel(Items2[_selectedItem1], Nk.nk_vec2_(ctx.WidgetWidth(), 200)))
{
ctx.LayoutRowDynamic(35, 1);
for (i = 0; i < 3; ++i)
{
if (ctx.ComboItemLabel(Items2[i], Alignment.MIDDLELEFT))
{
_selectedItem1 = i;
}
}
ctx.ComboEnd();
}
ui_widget(ctx, media, 40);
if (ctx.ComboBeginImageLabel(Items2[_selectedIcon], media.Images[_selectedIcon],
Nk.nk_vec2_(ctx.WidgetWidth(), 200)))
{
ctx.LayoutRowDynamic(35, 1);
for (i = 0; i < 3; ++i)
{
if (ctx.ComboItemImageLabel(media.Images[i], Items2[i], Alignment.MIDDLERIGHT))
{
_selectedIcon = i;
}
}
ctx.ComboEnd();
}
ui_header(ctx, media, "Checkbox");
ui_widget(ctx, media, 30);
ctx.CheckboxLabel("Flag 1", ref _check0);
ui_widget(ctx, media, 30);
ctx.CheckboxLabel("Flag 2", ref _check1);
ui_header(ctx, media, "Progressbar");
ui_widget(ctx, media, 35);
ctx.Progress(ref _prog, 100, Nk.nk_true);
if (Nk.nk_input_is_mouse_click_down_in_rect(ctx.Ctx.Input, NkButtons.RIGHT,
ctx.WindowGetBounds(), Nk.nk_true) != 0)
{
_piemenuPos = ctx.Ctx.Input.mouse.Pos;
_piemenuActive = true;
}
if (_piemenuActive)
{
var ret = ui_piemenu(ctx, _piemenuPos, 140, media.Menu, 6);
if (ret == -2)
{
_piemenuActive = false;
}
if (ret != -1)
{
Console.Write("piemenu selected: {0}\n", ret);
_piemenuActive = false;
}
}
ctx.StyleSetFont(media.Font14.Handle);
ctx.End();
}
public static void button_demo(NuklearContext ctx, Media media)
{
ctx.StyleSetFont(media.Font20.Handle);
ctx.Begin("Button Demo", Nk.nk_rect_(50, 50, 255, 610),
PanelFlags.BORDER | PanelFlags.MOVABLE | PanelFlags.TITLE);
/*------------------------------------------------
* MENU
*------------------------------------------------*/
ctx.MenubarBegin();
{
/* toolbar */
ctx.LayoutRowStatic(40, 40, 4);
if (ctx.MenuBeginImage("Music", media.Play, Nk.nk_vec2_(110, 120)))
{
/* settings */
ctx.LayoutRowDynamic(25, 1);
ctx.MenuItemImageLabel(media.Play, "Play", Alignment.MIDDLERIGHT);
ctx.MenuItemImageLabel(media.Stop, "Stop", Alignment.MIDDLERIGHT);
ctx.MenuItemImageLabel(media.Pause, "Pause", Alignment.MIDDLERIGHT);
ctx.MenuItemImageLabel(media.Next, "Next", Alignment.MIDDLERIGHT);
ctx.MenuItemImageLabel(media.Prev, "Prev", Alignment.MIDDLERIGHT);
ctx.MenuEnd();
}
ctx.ButtonImage(media.Tools);
ctx.ButtonImage(media.Cloud);
ctx.ButtonImage(media.Pen);
}
ctx.MenubarEnd();
/*------------------------------------------------
* BUTTON
*------------------------------------------------*/
ui_header(ctx, media, "Push buttons");
ui_widget(ctx, media, 35);
if (ctx.ButtonLabel("Push me"))
{
Console.Write("pushed!\n");
}
ui_widget(ctx, media, 35);
if (ctx.ButtonImageLabel(media.Rocket, "Styled", Alignment.MIDDLECENTERED))
{
Console.Write("rocket!\n");
}
/*------------------------------------------------
* REPEATER
*------------------------------------------------*/
ui_header(ctx, media, "Repeater");
ui_widget(ctx, media, 35);
if (ctx.ButtonLabel("Press me"))
{
Console.Write("pressed!\n");
}
/*------------------------------------------------
* TOGGLE
*------------------------------------------------*/
ui_header(ctx, media, "Toggle buttons");
ui_widget(ctx, media, 35);
if (ctx.ButtonImageLabel(_toggle0 ? media.Checkd : media.Uncheckd, "Toggle", Alignment.MIDDLELEFT))
{
_toggle0 = !_toggle0;
}
ui_widget(ctx, media, 35);
if (ctx.ButtonImageLabel(_toggle1 ? media.Checkd : media.Uncheckd, "Toggle", Alignment.MIDDLELEFT))
{
_toggle1 = !_toggle1;
}
ui_widget(ctx, media, 35);
if (ctx.ButtonImageLabel(_toggle2 ? media.Checkd : media.Uncheckd, "Toggle", Alignment.MIDDLELEFT))
{
_toggle2 = !_toggle2;
}
/*------------------------------------------------
* RADIO
*------------------------------------------------*/
ui_header(ctx, media, "Radio buttons");
ui_widget(ctx, media, 35);
if (ctx.ButtonSymbolLabel(_option == 0 ? NkSymbolType.CIRCLE_OUTLINE : NkSymbolType.CIRCLE_SOLID, "Select",
Alignment.MIDDLELEFT))
{
_option = 0;
}
ui_widget(ctx, media, 35);
if (ctx.ButtonSymbolLabel(_option == 1 ? NkSymbolType.CIRCLE_OUTLINE : NkSymbolType.CIRCLE_SOLID, "Select",
Alignment.MIDDLELEFT))
{
_option = 1;
}
ui_widget(ctx, media, 35);
if (ctx.ButtonSymbolLabel(_option == 2 ? NkSymbolType.CIRCLE_OUTLINE : NkSymbolType.CIRCLE_SOLID, "Select",
Alignment.MIDDLELEFT))
{
_option = 2;
}
/*------------------------------------------------
* CONTEXTUAL
*------------------------------------------------*/
ctx.StyleSetFont(media.Font18.Handle);
if (ctx.ContextualBegin(PanelFlags.NO_SCROLLBAR, Nk.nk_vec2_(150, 300), ctx.WindowGetBounds()))
{
ctx.LayoutRowDynamic(30, 1);
if (ctx.ContextualItemImageLabel(media.Copy, "Clone", Alignment.MIDDLERIGHT))
{
Console.Write("pressed clone!\n");
}
if (ctx.ContextualItemImageLabel(media.Del, "Delete", Alignment.MIDDLERIGHT))
{
Console.Write("pressed delete!\n");
}
if (ctx.ContextualItemImageLabel(media.Convert, "Convert", Alignment.MIDDLERIGHT))
{
Console.Write("pressed convert!\n");
}
if (ctx.ContextualItemImageLabel(media.Edit, "Edit", Alignment.MIDDLERIGHT))
{
Console.Write("pressed edit!\n");
}
ctx.ContextualEnd();
}
ctx.StyleSetFont(media.Font14.Handle);
ctx.End();
}
public int insert_at(int pos, char *ptr)
{
return(insert_at(pos, ptr, Nk.nk_strlen(ptr)));
}
public int Append(char *ptr)
{
return(Append(ptr, Nk.nk_strlen(ptr)));
}
