public static void PropertyBehavior(ref uint ws, nk_input _in_, RectangleF property, RectangleF label,
RectangleF edit,
RectangleF empty, ref int state, nk_property_variant *variant, float inc_per_pixel)
{
if (_in_ != null && state == NK_PROPERTY_DEFAULT)
{
if (ButtonBehavior(ref ws, edit, _in_, NK_BUTTON_DEFAULT))
{
state = NK_PROPERTY_EDIT;
}
else if (nk_input_is_mouse_click_down_in_rect(_in_, NK_BUTTON_LEFT, label, true))
{
state = NK_PROPERTY_DRAG;
}
else if (nk_input_is_mouse_click_down_in_rect(_in_, NK_BUTTON_LEFT, empty, true))
{
state = NK_PROPERTY_DRAG;
}
}
if (state == NK_PROPERTY_DRAG)
{
DrawBehavior(ref ws, _in_, property, variant, inc_per_pixel);
if ((ws & NK_WIDGET_STATE_ACTIVED) == 0)
{
state = NK_PROPERTY_DEFAULT;
}
}
}
public static void DrawBehavior(ref uint state, nk_input _in_, RectangleF drag,
nk_property_variant *variant,
float inc_per_pixel)
{
var left_mouse_down =
_in_ != null && _in_.mouse.buttons[NK_BUTTON_LEFT].down;
var left_mouse_click_in_cursor =
_in_ != null &&
nk_input_has_mouse_click_down_in_rect(_in_, NK_BUTTON_LEFT, drag, true);
if ((state & NK_WIDGET_STATE_MODIFIED) != 0)
{
state = NK_WIDGET_STATE_INACTIVE | NK_WIDGET_STATE_MODIFIED;
}
else
{
state = NK_WIDGET_STATE_INACTIVE;
}
if (nk_input_is_mouse_hovering_rect(_in_, drag))
{
state = NK_WIDGET_STATE_HOVERED;
}
if (left_mouse_down && left_mouse_click_in_cursor)
{
float delta;
float pixels;
pixels = _in_.mouse.delta.X;
delta = pixels * inc_per_pixel;
switch (variant->kind)
{
case NK_PROPERTY_INT:
variant->value.i = variant->value.i + (int)delta;
variant->value.i =
(variant->value.i < variant->max_value.i
? variant->value.i
: variant->max_value.i) <
variant->min_value.i
? variant->min_value.i
: variant->value.i < variant->max_value.i
? variant->value.i
: variant->max_value.i;
break;
case NK_PROPERTY_FLOAT:
variant->value.f = variant->value.f + delta;
variant->value.f =
(variant->value.f < variant->max_value.f
? variant->value.f
: variant->max_value.f) <
variant->min_value.f
? variant->min_value.f
: variant->value.f < variant->max_value.f
? variant->value.f
: variant->max_value.f;
break;
case NK_PROPERTY_DOUBLE:
variant->value.d = variant->value.d + delta;
variant->value.d =
(variant->value.d < variant->max_value.d
? variant->value.d
: variant->max_value.d) <
variant->min_value.d
? variant->min_value.d
: variant->value.d < variant->max_value.d
? variant->value.d
: variant->max_value.d;
break;
}
state = NK_WIDGET_STATE_ACTIVE;
}
if ((state & NK_WIDGET_STATE_HOVER) != 0 &&
!nk_input_is_mouse_prev_hovering_rect(_in_, drag))
{
state |= NK_WIDGET_STATE_ENTERED;
}
else if (nk_input_is_mouse_prev_hovering_rect(_in_, drag))
{
state |= NK_WIDGET_STATE_LEFT;
}
}
public static void Property(this NuklearContext ctx, string name, nk_property_variant *variant,
float inc_per_pixel,
int filter)
{
var bounds = new RectangleF();
uint hash;
string dummy_buffer = null;
var dummy_state = NK_PROPERTY_DEFAULT;
var dummy_cursor = 0;
var dummy_select_begin = 0;
var dummy_select_end = 0;
if (ctx == null || ctx.current == null || ctx.current.Layout == null)
{
return;
}
var win = ctx.current;
var layout = win.Layout;
var style = ctx.style;
var s = ctx.Widget(ref bounds);
if (s == 0)
{
return;
}
if (name[0] == '#')
{
hash = nk_murmur_hash(name, win.Property.seq++);
name = name + 1;
}
else
{
hash = nk_murmur_hash(name, 42);
}
var _in_ = s == NK_WIDGET_ROM && win.Property.active == 0 || (layout.Flags & NK_WINDOW_ROM) != 0
? null
: ctx.input;
int old_state, state;
string buffer;
int cursor, select_begin, select_end;
if (win.Property.active != 0 && hash == win.Property.name)
{
old_state = win.Property.state;
DoProperty(ref ctx.last_widget_state, win.Buffer, bounds, name, variant, inc_per_pixel,
ref win.Property.buffer, ref win.Property.state, ref win.Property.cursor,
ref win.Property.select_start, ref win.Property.select_end, style.property, filter, _in_,
style.font,
ctx.text_edit, ctx.button_behavior);
state = win.Property.state;
buffer = win.Property.buffer;
cursor = win.Property.cursor;
select_begin = win.Property.select_start;
select_end = win.Property.select_end;
}
else
{
old_state = dummy_state;
DoProperty(ref ctx.last_widget_state, win.Buffer, bounds, name, variant, inc_per_pixel,
ref dummy_buffer, ref dummy_state, ref dummy_cursor,
ref dummy_select_begin, ref dummy_select_end, style.property, filter, _in_, style.font,
ctx.text_edit, ctx.button_behavior);
state = dummy_state;
buffer = dummy_buffer;
cursor = dummy_cursor;
select_begin = dummy_select_begin;
select_end = dummy_select_end;
}
ctx.text_edit.Clip = ctx.clip;
if (_in_ != null && state != NK_PROPERTY_DEFAULT && win.Property.active == 0)
{
win.Property.active = 1;
win.Property.buffer = buffer;
win.Property.cursor = cursor;
win.Property.state = state;
win.Property.name = hash;
win.Property.select_start = select_begin;
win.Property.select_end = select_end;
if (state == NK_PROPERTY_DRAG)
{
ctx.input.mouse.grab = nk_true;
ctx.input.mouse.grabbed = nk_true;
}
}
if (state == NK_PROPERTY_DEFAULT && old_state != NK_PROPERTY_DEFAULT)
{
if (old_state == NK_PROPERTY_DRAG)
{
ctx.input.mouse.grab = nk_false;
ctx.input.mouse.grabbed = nk_false;
ctx.input.mouse.ungrab = nk_true;
}
win.Property.select_start = 0;
win.Property.select_end = 0;
win.Property.active = 0;
}
}
public static void DoProperty(ref uint ws, CommandBuffer _out_, RectangleF property, string name,
nk_property_variant *variant, float inc_per_pixel, ref string buffer, ref int state, ref int cursor,
ref int select_begin, ref int select_end, nk_style_property style, int filter, nk_input _in_,
nk_font font,
nk_text_edit text_edit, int behavior)
{
var filters = new NkPluginFilter[2];
filters[0] = nk_filter_decimal;
filters[1] = nk_filter_float;
bool active;
int old;
float size;
string dst = null;
var left = new RectangleF();
var right = new RectangleF();
var label = new RectangleF();
var edit = new RectangleF();
var empty = new RectangleF();
left.Height = font.Size / 2;
left.Width = left.Height;
left.X = property.X + style.border + style.padding.X;
left.Y = property.Y + style.border + property.Height / 2.0f - left.Height / 2;
size = font.width(name);
label.X = left.X + left.Width + style.padding.X;
label.Width = size + 2 * style.padding.X;
label.Y = property.Y + style.border + style.padding.Y;
label.Height = property.Height - (2 * style.border + 2 * style.padding.Y);
right.Y = left.Y;
right.Width = left.Width;
right.Height = left.Height;
right.X = property.X + property.Width - (right.Width + style.padding.X);
if (state == NK_PROPERTY_EDIT)
{
size = font.width(buffer);
size += style.edit.Cursor_size;
dst = buffer;
}
else
{
var _string_ = string.Empty;
switch (variant->kind)
{
case NK_PROPERTY_INT:
_string_ = variant->value.i.ToString();
break;
case NK_PROPERTY_FLOAT:
_string_ = variant->value.f.ToString();
break;
case NK_PROPERTY_DOUBLE:
_string_ = variant->value.d.ToString();
break;
}
size = font.width(_string_);
dst = _string_;
}
edit.Width = size + 2 * style.padding.X;
edit.Width = edit.Width < right.X - (label.X + label.Width)
? edit.Width
: right.X - (label.X + label.Width);
edit.X = right.X - (edit.Width + style.padding.X);
edit.Y = property.Y + style.border;
edit.Height = property.Height - 2 * style.border;
empty.Width = edit.X - (label.X + label.Width);
empty.X = label.X + label.Width;
empty.Y = property.Y;
empty.Height = property.Height;
old = state == NK_PROPERTY_EDIT ? 1 : 0;
PropertyBehavior(ref ws, _in_, property, label, edit,
empty,
ref state, variant, inc_per_pixel);
if (style.draw_begin != null)
{
style.draw_begin(_out_);
}
_out_.DrawProperty(style, &property, &label, ws, name, font);
if (style.draw_end != null)
{
style.draw_end(_out_);
}
if (
DoButtonSymbol(ref ws, _out_, left, style.sym_left, behavior,
style.dec_button,
_in_, font))
{
switch (variant->kind)
{
case NK_PROPERTY_INT:
variant->value.i =
(variant->value.i - variant->step.i < variant->max_value.i
? variant->value.i - variant->step.i
: variant->max_value.i) < variant->min_value.i
? variant->min_value.i
: variant->value.i - variant->step.i < variant->max_value.i
? variant->value.i - variant->step.i
: variant->max_value.i;
break;
case NK_PROPERTY_FLOAT:
variant->value.f =
(variant->value.f - variant->step.f < variant->max_value.f
? variant->value.f - variant->step.f
: variant->max_value.f) < variant->min_value.f
? variant->min_value.f
: variant->value.f - variant->step.f < variant->max_value.f
? variant->value.f - variant->step.f
: variant->max_value.f;
break;
case NK_PROPERTY_DOUBLE:
variant->value.d =
(variant->value.d - variant->step.d < variant->max_value.d
? variant->value.d - variant->step.d
: variant->max_value.d) < variant->min_value.d
? variant->min_value.d
: variant->value.d - variant->step.d < variant->max_value.d
? variant->value.d - variant->step.d
: variant->max_value.d;
break;
}
}
if (
DoButtonSymbol(ref ws, _out_, right, style.sym_right, behavior,
style.inc_button,
_in_, font))
{
switch (variant->kind)
{
case NK_PROPERTY_INT:
variant->value.i =
(variant->value.i + variant->step.i < variant->max_value.i
? variant->value.i + variant->step.i
: variant->max_value.i) < variant->min_value.i
? variant->min_value.i
: variant->value.i + variant->step.i < variant->max_value.i
? variant->value.i + variant->step.i
: variant->max_value.i;
break;
case NK_PROPERTY_FLOAT:
variant->value.f =
(variant->value.f + variant->step.f < variant->max_value.f
? variant->value.f + variant->step.f
: variant->max_value.f) < variant->min_value.f
? variant->min_value.f
: variant->value.f + variant->step.f < variant->max_value.f
? variant->value.f + variant->step.f
: variant->max_value.f;
break;
case NK_PROPERTY_DOUBLE:
variant->value.d =
(variant->value.d + variant->step.d < variant->max_value.d
? variant->value.d + variant->step.d
: variant->max_value.d) < variant->min_value.d
? variant->min_value.d
: variant->value.d + variant->step.d < variant->max_value.d
? variant->value.d + variant->step.d
: variant->max_value.d;
break;
}
}
if (old != NK_PROPERTY_EDIT && state == NK_PROPERTY_EDIT)
{
buffer = dst;
cursor = buffer != null ? buffer.Length : 0;
active = false;
}
else
{
active = state == NK_PROPERTY_EDIT;
}
nk_textedit_clear_state(text_edit, NK_TEXT_EDIT_SINGLE_LINE, filters[filter]);
text_edit.Active = active;
text_edit.Text.str = dst;
var length = dst != null ? dst.Length : 0;
text_edit.Cursor =
(cursor < length ? cursor : length) < 0
? 0
: cursor < length
? cursor
: length;
text_edit.SelectionStart =
(select_begin < length ? select_begin : length) < 0
? 0
: select_begin < length
? select_begin
: length;
text_edit.SelectionEnd =
(select_end < length ? select_end : length) < 0
? 0
: select_end < length
? select_end
: length;
text_edit.Mode = NK_TEXT_EDIT_MODE_INSERT;
DoEdit(ref ws, _out_, edit, NK_EDIT_FIELD | NK_EDIT_AUTO_SELECT,
filters[filter], text_edit,
style.edit, state == NK_PROPERTY_EDIT ? _in_ : null, font);
cursor = text_edit.Cursor;
select_begin = text_edit.SelectionStart;
select_end = text_edit.SelectionEnd;
if (text_edit.Active && nk_input_is_key_pressed(_in_, NK_KEY_ENTER))
{
text_edit.Active = false;
}
if (active && !text_edit.Active)
{
state = NK_PROPERTY_DEFAULT;
switch (variant->kind)
{
case NK_PROPERTY_INT:
int.TryParse(buffer, out variant->value.i);
variant->value.i =
(variant->value.i < variant->max_value.i
? variant->value.i
: variant->max_value.i) <
variant->min_value.i
? variant->min_value.i
: variant->value.i < variant->max_value.i
? variant->value.i
: variant->max_value.i;
break;
case NK_PROPERTY_FLOAT:
float.TryParse(buffer, out variant->value.f);
variant->value.f =
(variant->value.f < variant->max_value.f
? variant->value.f
: variant->max_value.f) <
variant->min_value.f
? variant->min_value.f
: variant->value.f < variant->max_value.f
? variant->value.f
: variant->max_value.f;
break;
case NK_PROPERTY_DOUBLE:
double.TryParse(buffer, out variant->value.d);
variant->value.d =
(variant->value.d < variant->max_value.d
? variant->value.d
: variant->max_value.d) <
variant->min_value.d
? variant->min_value.d
: variant->value.d < variant->max_value.d
? variant->value.d
: variant->max_value.d;
break;
}
}
}
public static void nk_property_(nk_context ctx, char *name, nk_property_variant *variant, float inc_per_pixel,
int filter)
{
var bounds = new nk_rect();
uint hash;
string dummy_buffer = null;
var dummy_state = NK_PROPERTY_DEFAULT;
var dummy_cursor = 0;
var dummy_select_begin = 0;
var dummy_select_end = 0;
if ((ctx == null) || (ctx.current == null) || (ctx.current.layout == null))
{
return;
}
var win = ctx.current;
var layout = win.layout;
var style = ctx.style;
var s = nk_widget(&bounds, ctx);
if (s == 0)
{
return;
}
if (name[0] == '#')
{
hash = nk_murmur_hash(name, nk_strlen(name), win.property.seq++);
name++;
}
else
{
hash = nk_murmur_hash(name, nk_strlen(name), 42);
}
var _in_ = ((s == NK_WIDGET_ROM) && (win.property.active == 0)) || ((layout.flags & NK_WINDOW_ROM) != 0)
? null
: ctx.input;
int old_state, state;
string buffer;
int cursor, select_begin, select_end;
if ((win.property.active != 0) && (hash == win.property.name))
{
old_state = win.property.state;
nk_do_property(ref ctx.last_widget_state, win.buffer, bounds, name, variant, inc_per_pixel,
ref win.property.buffer, ref win.property.state, ref win.property.cursor,
ref win.property.select_start, ref win.property.select_end, style.property, filter, _in_, style.font,
ctx.text_edit, ctx.button_behavior);
state = win.property.state;
buffer = win.property.buffer;
cursor = win.property.cursor;
select_begin = win.property.select_start;
select_end = win.property.select_end;
}
else
{
old_state = dummy_state;
nk_do_property(ref ctx.last_widget_state, win.buffer, bounds, name, variant, inc_per_pixel,
ref dummy_buffer, ref dummy_state, ref dummy_cursor,
ref dummy_select_begin, ref dummy_select_end, style.property, filter, _in_, style.font,
ctx.text_edit, ctx.button_behavior);
state = dummy_state;
buffer = dummy_buffer;
cursor = dummy_cursor;
select_begin = dummy_select_begin;
select_end = dummy_select_end;
}
ctx.text_edit.clip = ctx.clip;
if ((_in_ != null) && (state != NK_PROPERTY_DEFAULT) && (win.property.active == 0))
{
win.property.active = 1;
win.property.buffer = buffer;
win.property.cursor = cursor;
win.property.state = state;
win.property.name = hash;
win.property.select_start = select_begin;
win.property.select_end = select_end;
if (state == NK_PROPERTY_DRAG)
{
ctx.input.mouse.grab = nk_true;
ctx.input.mouse.grabbed = nk_true;
}
}
if ((state == NK_PROPERTY_DEFAULT) && (old_state != NK_PROPERTY_DEFAULT))
{
if (old_state == NK_PROPERTY_DRAG)
{
ctx.input.mouse.grab = nk_false;
ctx.input.mouse.grabbed = nk_false;
ctx.input.mouse.ungrab = nk_true;
}
win.property.select_start = 0;
win.property.select_end = 0;
win.property.active = 0;
}
}
