(#893) Remove source_code from Script

[nothing.git] / src / ui / list_selector.c

diff --git a/src/ui/list_selector.c b/src/ui/list_selector.c
index 183faad8f96bccb256e90534580685d880b7b13c..97cb30b16bb88bf774ac96731175eaa9bcaef03a 100644 (file)
--- a/src/ui/list_selector.c
+++ b/src/ui/list_selector.c
@@ -1,6 +1,6 @@
 #include <stdlib.h>
 
-#include <SDL2/SDL.h>
+#include <SDL.h>
 
 #include "system/stacktrace.h"
 #include "system/lt.h"
@@ -8,6 +8,7 @@
 #include "system/str.h"
 #include "math/point.h"
 #include "game/sprite_font.h"
+#include "system/log.h"
 
 #include "./list_selector.h"
 
@@ -17,40 +18,37 @@ struct ListSelector
     const Sprite_font *sprite_font;
     const char **items;
     size_t count;
+    size_t cursor;
+    int selected_item;
+    Vec position;
+    Vec font_scale;
+    float padding_bottom;
 };
 
 ListSelector *create_list_selector(const Sprite_font *sprite_font,
                                    const char *items[],
-                                   size_t count)
+                                   size_t count,
+                                   Vec font_scale,
+                                   float padding_bottom)
 {
     trace_assert(items);
 
     Lt *lt = create_lt();
-    if (lt == NULL) {
-        return NULL;
-    }
 
-    ListSelector *list_selector = PUSH_LT(lt, nth_alloc(sizeof(ListSelector)), free);
+    ListSelector *list_selector = PUSH_LT(lt, nth_calloc(1, sizeof(ListSelector)), free);
     if (list_selector == NULL) {
         RETURN_LT(lt, NULL);
     }
     list_selector->lt = lt;
 
     list_selector->sprite_font = sprite_font;
-
-    list_selector->items = PUSH_LT(lt, nth_calloc(count, sizeof(const char*)), free);
-    if (list_selector->items == NULL) {
-        RETURN_LT(lt, NULL);
-    }
-
-    for (size_t i = 0; i < count; ++i) {
-        list_selector->items[i] = PUSH_LT(lt, string_duplicate(items[i], NULL), free);
-        if (list_selector->items[i] == NULL) {
-            RETURN_LT(lt, NULL);
-        }
-    }
-
+    list_selector->items = items;
     list_selector->count = count;
+    list_selector->cursor = 0;
+    list_selector->selected_item = -1;
+    list_selector->position = vec(0.0f, 0.0f);
+    list_selector->font_scale = font_scale;
+    list_selector->padding_bottom = padding_bottom;
 
     return list_selector;
 }
@@ -62,26 +60,41 @@ void destroy_list_selector(ListSelector *list_selector)
 }
 
 int list_selector_render(const ListSelector *list_selector,
-                         SDL_Renderer *renderer,
-                         Vec position,
-                         Vec font_scale,
-                         float padding_bottom)
+                         SDL_Renderer *renderer)
 {
     trace_assert(list_selector);
     trace_assert(renderer);
 
     for (size_t i = 0; i < list_selector->count; ++i) {
+        const Vec current_position = vec_sum(
+            list_selector->position,
+            vec(0.0f, (float) i * ((float) FONT_CHAR_HEIGHT * list_selector->font_scale.y + list_selector->padding_bottom)));
+
         if (sprite_font_render_text(
                 list_selector->sprite_font,
                 renderer,
-                vec_sum(
-                    position,
-                    vec(0.0f, (float) i * ((float) FONT_CHAR_HEIGHT * font_scale.y + padding_bottom))),
-                font_scale,
+                current_position,
+                list_selector->font_scale,
                 rgba(1.0f, 1.0f, 1.0f, 1.0f),
                 list_selector->items[i]) < 0) {
             return -1;
         }
+
+        if (i == list_selector->cursor) {
+            SDL_Rect boundary_box = rect_for_sdl(
+                sprite_font_boundary_box(
+                    list_selector->sprite_font,
+                    current_position,
+                    list_selector->font_scale,
+                    list_selector->items[i]));
+            if (SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255) < 0) {
+                return -1;
+            }
+
+            if (SDL_RenderDrawRect(renderer, &boundary_box) < 0) {
+                return -1;
+            }
+        }
     }
 
     return 0;
@@ -121,11 +134,70 @@ int list_selector_event(ListSelector *list_selector, const SDL_Event *event)
 {
     trace_assert(list_selector);
     trace_assert(event);
+
+    switch (event->type) {
+    case SDL_KEYDOWN:
+        switch (event->key.keysym.sym) {
+        case SDLK_UP:
+            if (list_selector->cursor > 0) {
+                list_selector->cursor--;
+            }
+            break;
+        case SDLK_DOWN:
+            if (list_selector->cursor < list_selector->count - 1) {
+                list_selector->cursor++;
+            }
+            break;
+        case SDLK_RETURN:
+            list_selector->selected_item = (int) list_selector->cursor;
+            break;
+        }
+        break;
+
+    case SDL_MOUSEMOTION: {
+        const Vec mouse_pos = vec((float)event->motion.x, (float)event->motion.y);
+        Vec position = list_selector->position;
+
+        for (size_t i = 0; i < list_selector->count; ++i) {
+            Rect boundary_box = sprite_font_boundary_box(
+                list_selector->sprite_font,
+                position,
+                list_selector->font_scale,
+                list_selector->items[i]);
+
+            if (rect_contains_point(boundary_box, mouse_pos)) {
+                list_selector->cursor = i;
+            }
+
+            position.y += boundary_box.h + list_selector->padding_bottom;
+        }
+    } break;
+
+    case SDL_MOUSEBUTTONDOWN: {
+        switch (event->button.button) {
+        case SDL_BUTTON_LEFT: {
+            list_selector->selected_item = (int) list_selector->cursor;
+        } break;
+        }
+    } break;
+    }
+
     return 0;
 }
 
-const char *list_selector_selected(const ListSelector *list_selector)
+int list_selector_selected(const ListSelector *list_selector)
 {
     trace_assert(list_selector);
-    return NULL;
+    return list_selector->selected_item;
+}
+
+void list_selector_clean_selection(ListSelector *list_selector)
+{
+    trace_assert(list_selector);
+    list_selector->selected_item = -1;
+}
+
+void list_selector_move(ListSelector *list_selector, Vec position)
+{
+    list_selector->position = position;
 }