prosperon/source/engine/thirdparty/Nuklear/src/nuklear_contextual.c
2022-08-06 20:39:29 +00:00

222 lines
7.1 KiB
C

#include "nuklear.h"
#include "nuklear_internal.h"
/* ==============================================================
*
* CONTEXTUAL
*
* ===============================================================*/
NK_API nk_bool
nk_contextual_begin(struct nk_context *ctx, nk_flags flags, struct nk_vec2 size,
struct nk_rect trigger_bounds)
{
struct nk_window *win;
struct nk_window *popup;
struct nk_rect body;
NK_STORAGE const struct nk_rect null_rect = {-1,-1,0,0};
int is_clicked = 0;
int is_open = 0;
int ret = 0;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout)
return 0;
win = ctx->current;
++win->popup.con_count;
if (ctx->current != ctx->active)
return 0;
/* check if currently active contextual is active */
popup = win->popup.win;
is_open = (popup && win->popup.type == NK_PANEL_CONTEXTUAL);
is_clicked = nk_input_mouse_clicked(&ctx->input, NK_BUTTON_RIGHT, trigger_bounds);
if (win->popup.active_con && win->popup.con_count != win->popup.active_con)
return 0;
if (!is_open && win->popup.active_con)
win->popup.active_con = 0;
if ((!is_open && !is_clicked))
return 0;
/* calculate contextual position on click */
win->popup.active_con = win->popup.con_count;
if (is_clicked) {
body.x = ctx->input.mouse.pos.x;
body.y = ctx->input.mouse.pos.y;
} else {
body.x = popup->bounds.x;
body.y = popup->bounds.y;
}
body.w = size.x;
body.h = size.y;
/* start nonblocking contextual popup */
ret = nk_nonblock_begin(ctx, flags|NK_WINDOW_NO_SCROLLBAR, body,
null_rect, NK_PANEL_CONTEXTUAL);
if (ret) win->popup.type = NK_PANEL_CONTEXTUAL;
else {
win->popup.active_con = 0;
win->popup.type = NK_PANEL_NONE;
if (win->popup.win)
win->popup.win->flags = 0;
}
return ret;
}
NK_API nk_bool
nk_contextual_item_text(struct nk_context *ctx, const char *text, int len,
nk_flags alignment)
{
struct nk_window *win;
const struct nk_input *in;
const struct nk_style *style;
struct nk_rect bounds;
enum nk_widget_layout_states state;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout)
return 0;
win = ctx->current;
style = &ctx->style;
state = nk_widget_fitting(&bounds, ctx, style->contextual_button.padding);
if (!state) return nk_false;
in = (state == NK_WIDGET_ROM || win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
if (nk_do_button_text(&ctx->last_widget_state, &win->buffer, bounds,
text, len, alignment, NK_BUTTON_DEFAULT, &style->contextual_button, in, style->font)) {
nk_contextual_close(ctx);
return nk_true;
}
return nk_false;
}
NK_API nk_bool
nk_contextual_item_label(struct nk_context *ctx, const char *label, nk_flags align)
{
return nk_contextual_item_text(ctx, label, nk_strlen(label), align);
}
NK_API nk_bool
nk_contextual_item_image_text(struct nk_context *ctx, struct nk_image img,
const char *text, int len, nk_flags align)
{
struct nk_window *win;
const struct nk_input *in;
const struct nk_style *style;
struct nk_rect bounds;
enum nk_widget_layout_states state;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout)
return 0;
win = ctx->current;
style = &ctx->style;
state = nk_widget_fitting(&bounds, ctx, style->contextual_button.padding);
if (!state) return nk_false;
in = (state == NK_WIDGET_ROM || win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
if (nk_do_button_text_image(&ctx->last_widget_state, &win->buffer, bounds,
img, text, len, align, NK_BUTTON_DEFAULT, &style->contextual_button, style->font, in)){
nk_contextual_close(ctx);
return nk_true;
}
return nk_false;
}
NK_API nk_bool
nk_contextual_item_image_label(struct nk_context *ctx, struct nk_image img,
const char *label, nk_flags align)
{
return nk_contextual_item_image_text(ctx, img, label, nk_strlen(label), align);
}
NK_API nk_bool
nk_contextual_item_symbol_text(struct nk_context *ctx, enum nk_symbol_type symbol,
const char *text, int len, nk_flags align)
{
struct nk_window *win;
const struct nk_input *in;
const struct nk_style *style;
struct nk_rect bounds;
enum nk_widget_layout_states state;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout)
return 0;
win = ctx->current;
style = &ctx->style;
state = nk_widget_fitting(&bounds, ctx, style->contextual_button.padding);
if (!state) return nk_false;
in = (state == NK_WIDGET_ROM || win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
if (nk_do_button_text_symbol(&ctx->last_widget_state, &win->buffer, bounds,
symbol, text, len, align, NK_BUTTON_DEFAULT, &style->contextual_button, style->font, in)) {
nk_contextual_close(ctx);
return nk_true;
}
return nk_false;
}
NK_API nk_bool
nk_contextual_item_symbol_label(struct nk_context *ctx, enum nk_symbol_type symbol,
const char *text, nk_flags align)
{
return nk_contextual_item_symbol_text(ctx, symbol, text, nk_strlen(text), align);
}
NK_API void
nk_contextual_close(struct nk_context *ctx)
{
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout) return;
nk_popup_close(ctx);
}
NK_API void
nk_contextual_end(struct nk_context *ctx)
{
struct nk_window *popup;
struct nk_panel *panel;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
if (!ctx || !ctx->current) return;
popup = ctx->current;
panel = popup->layout;
NK_ASSERT(popup->parent);
NK_ASSERT(panel->type & NK_PANEL_SET_POPUP);
if (panel->flags & NK_WINDOW_DYNAMIC) {
/* Close behavior
This is a bit of a hack solution since we do not know before we end our popup
how big it will be. We therefore do not directly know when a
click outside the non-blocking popup must close it at that direct frame.
Instead it will be closed in the next frame.*/
struct nk_rect body = {0,0,0,0};
if (panel->at_y < (panel->bounds.y + panel->bounds.h)) {
struct nk_vec2 padding = nk_panel_get_padding(&ctx->style, panel->type);
body = panel->bounds;
body.y = (panel->at_y + panel->footer_height + panel->border + padding.y + panel->row.height);
body.h = (panel->bounds.y + panel->bounds.h) - body.y;
}
{int pressed = nk_input_is_mouse_pressed(&ctx->input, NK_BUTTON_LEFT);
int in_body = nk_input_is_mouse_hovering_rect(&ctx->input, body);
if (pressed && in_body)
popup->flags |= NK_WINDOW_HIDDEN;
}
}
if (popup->flags & NK_WINDOW_HIDDEN)
popup->seq = 0;
nk_popup_end(ctx);
return;
}