#pragma once

#include <ui.h>

#include <cstring.h>
#include <list.h>

#include <stdbool.h>

DEF_LIST(Widget, uiWidget*)

#define UI_NEW(TYPE) (TYPE*)uiAlloc(1, sizeof(TYPE))

static inline void* uiAlloc(size_t count, size_t size) {
  void* mem = calloc(count, size);
  ASSERT(mem);
  return mem;
}

// -----------------------------------------------------------------------------
// Widgets.

/// Base widget type.
typedef struct uiWidget {
  uiWidgetType type;
  uiRect       rect;
  Widget_list  children;
} uiWidget;

/// Button.
typedef struct uiButton {
  uiWidget widget;
  string   text;
} uiButton;

/// Frame.
typedef struct uiFrame {
  uiWidget widget;
} uiFrame;

/// Label.
typedef struct uiLabel {
  uiWidget widget;
  string   text;
} uiLabel;

/// Table cell.
typedef struct uiCell {
  uiWidget* child;
} uiCell;

/// Table.
typedef struct uiTable {
  uiWidget widget;
  int      rows;
  int      cols;
  int*     widths; // Width, in pixels, for each column.
  uiCell*  header; // If non-null, row of 'cols' header cells.
  uiCell** cells;  // Array of 'rows' rows, each of 'cols' cells.
  int      offset; // Offset into the rows of the table. Units: rows.
  struct {
    bool vertical_overflow : 1; // True if contents overflow vertically.
  } flags;
} uiTable;

void DestroyWidget(uiWidget** ppWidget);