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sokol_nuklear.h: enable setting mouse cursor #1150

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Nov 13, 2024
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sokol_nuklear.h: enable setting mouse cursor #1150

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25 changes: 25 additions & 0 deletions util/sokol_nuklear.h
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,12 @@
Set this to true if you don't want to use Nuklear's default
font. In this case you need to initialize the font
yourself after snk_setup() is called.

bool enable_set_mouse_cursor
If true, sokol_nuklear.h will control the mouse cursor type
by calling sapp_set_mouse_cursor(). If using this, you should
probably also call nk_style_hide_cursor() to hide Nuklear's
custom cursor.

--- At the start of a frame, call:

Expand Down Expand Up @@ -427,6 +433,7 @@ typedef struct snk_desc_t {
int sample_count;
float dpi_scale;
bool no_default_font;
bool enable_set_mouse_cursor;
snk_allocator_t allocator; // optional memory allocation overrides (default: malloc/free)
snk_logger_t logger; // optional log function override
} snk_desc_t;
Expand Down Expand Up @@ -3121,6 +3128,24 @@ SOKOL_API_IMPL bool snk_handle_event(const sapp_event* ev) {
default:
break;
}
if (_snuklear.desc.enable_set_mouse_cursor) {
for (enum nk_style_cursor c = 0; c < NK_CURSOR_COUNT; ++c) {
if (_snuklear.ctx.style.cursor_active == _snuklear.ctx.style.cursors[c]) {
sapp_mouse_cursor sapp_cur = SAPP_MOUSECURSOR_ARROW;
switch (c) {
case NK_CURSOR_TEXT: sapp_cur = SAPP_MOUSECURSOR_IBEAM; break;
case NK_CURSOR_MOVE: sapp_cur = SAPP_MOUSECURSOR_RESIZE_ALL; break;
case NK_CURSOR_RESIZE_VERTICAL: sapp_cur = SAPP_MOUSECURSOR_RESIZE_NS; break;
case NK_CURSOR_RESIZE_HORIZONTAL: sapp_cur = SAPP_MOUSECURSOR_RESIZE_EW; break;
case NK_CURSOR_RESIZE_TOP_LEFT_DOWN_RIGHT: sapp_cur = SAPP_MOUSECURSOR_RESIZE_NESW; break;
case NK_CURSOR_RESIZE_TOP_RIGHT_DOWN_LEFT: sapp_cur = SAPP_MOUSECURSOR_RESIZE_NWSE; break;
default: break;
}
sapp_set_mouse_cursor(sapp_cur);
break;
}
}
}
return nk_item_is_any_active(&_snuklear.ctx);
}

Expand Down