two separate controls - panel and scroll_view

include/tim.h

@@ -170,22 +170,31 @@ typedef struct TimEditState {
 } TimEditState;
 
 
-typedef struct TimScrollItem {
-    void* data;
+typedef struct TimPanelItem {
+    // Size of item to know where to draw next item.
+    // Set to to A and items will be spread equally across panel
+    i32 w;
+    i32 h;
+    void* data;         // is passed to draw()
     void* focus_target; // is assigned to tim->focus
-    i32 h;              // height of the item to know where to draw next item
-    void (*draw)(bool is_selected, TimRect place, void* data);
-} TimScrollItem;
+    void (*draw)(void* data, TimRect place, bool is_selected);
+} TimPanelItem;
 
-typedef struct TimScrollState {
-    TimScrollItem* items;
-    i32 len;
-    i32 cur;
+typedef struct TimPanel {
+    TimPanelItem* items; // array
+    i32 len;            // number of items
+    i32 cur;            // index of current item
+    i32 spacing;        // distance between items
     bool draw_border;
-    bool show_scroll_bar_vertical;
-    bool use_mouse_wheel;
-} TimScrollState;
+    bool is_horizontal;
+} TimPanel;
 
+typedef struct TimScrollView {
+    i32 offset;
+    i32 content_h;
+    void* data;         // is passed to draw()
+    void (*draw)(void* data, TimRect place);
+} TimScrollView;
 
 typedef struct TimState {
     i32         w;                      // screen width
@@ -308,6 +317,7 @@ bool tim_checkbox(cstr txt, i32* state, i32 x, i32 y, i32 w, TimStyle style);
 // color: radio, background, text
 bool tim_radiobutton(cstr txt, i32* state, i32 v, i32 x, i32 y, i32 w, TimStyle style);
 
+
 /// text edit - value in state
 /// @param e persistent edit state, use TimEditState_construct() to create new state
 /// @param style frame, background, text
@@ -319,16 +329,22 @@ TimKey tim_edit(TimEditState* e, i32 x, i32 y, i32 w, TimStyle style);
 /// @param capacity buffer size in bytes
 /// @param initial_content may be NULL
 void TimEditState_construct(TimEditState* e, char* buffer, i32 capacity, cstr initial_content);
-
 void TimEditState_insert(TimEditState* e, cstr s);
 void TimEditState_delete(TimEditState* e);
 
-/// @param l list of rows to display
-/// @param style frame, background, text
-TimScrollItem* tim_scroll(TimScrollState* l, i32 x, i32 y, i32 w, i32 h, TimStyle style);
 
-void TimScrollState_selectNext(TimScrollState* l);
-void TimScrollState_selectPrev(TimScrollState* l);
+/// Panel with sequence of items. You can select an item by arrow keys or mouse click.
+/// @param self persistent state
+/// @param is_selected if panel is not selected, it calls items[:]->draw(is_selected=false)
+/// @param style frame, background, text
+/// @return current item
+TimPanelItem* tim_panel(TimPanel* self, bool is_selected, i32 x, i32 y, i32 w, i32 h, TimStyle style);
+
+void TimPanel_selectNext(TimPanel* self);
+void TimPanel_selectPrev(TimPanel* self);
+
+/// 
+void tim_scroll_view(TimScrollView* self, i32 x, i32 y, i32 w, i32 h, TimStyle style);
 
 #pragma endregion