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#pragma once
#include "alf.h"
#include "alflist.h"
typedef struct {
ALFListHeader list;
HWND hwnd;
int x;
int y;
int width;
int height;
DWORD flags;
} ALFWidgetPriv;
typedef struct {
HWND hwnd;
int x;
int y;
int width;
int height;
DWORD flags;
} ALFAddWidgetParams;
typedef struct {
// properties set by user
int requestedMinWidth;
int requestedExpandNumerator;
int requestedFlags;
// calculated properties
int calculatedMinWidth;
int calculatedExpandNumerator;
// allocated size for layout application
int allocatedWidth;
int allocatedPosition;
} ALFLayoutRowOrColumn;
#define ALF_LAYOUT_NEED_RECALC ((DWORD)1)
#define ALF_LAYOUT_NEED_REAPPLY ((DWORD)2)
typedef struct {
ALFListHeader widgets;
ALFLayoutRowOrColumn *columns;
ALFLayoutRowOrColumn *rows;
int nColumns;
int nRows;
int totalMinWidth;
int totalMinHeight;
int columnExpandDenominator;
int rowExpandDenominator;
int biggestColumnNo;
int biggestRowNo;
DWORD layoutValididityFlags;
} ALFLayout;
void
ALF_Layout_Init(ALFLayout *layout);
void
ALF_Layout_Clear(ALFLayout *layout);
void
ALF_Layout_GetMinSize(ALFLayout *layout, HWND window, SIZE *size);
void
ALF_Layout_Apply(ALFLayout *layout, HWND window);
void
ALF_Layout_AddWidget(ALFLayout *layout, HWND window, const ALFAddWidgetParams *params);
BOOL
ALF_Layout_RemoveWidget(ALFLayout *layout, HWND window, HWND widget, BOOL destroy);
BOOL
ALF_Layout_HandleMessage(ALFLayout *layout, HWND window, UINT msg, WPARAM wparam, LPARAM lparam, LRESULT *ret);
HWND
ALF_Layout_WidgetAtPos(ALFLayout *layout, int x, int y);
void
ALF_Layout_Invalidate(ALFLayout *layout, HWND window);
BOOL
ALF_Layout_Validate(ALFLayout *layout, HWND window);
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