[cygwin-apps/setup.git] / PickView.cc

/*
 * Copyright (c) 2002 Robert Collins.
 *
 *     This program is free software; you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation; either version 2 of the License, or
 *     (at your option) any later version.
 *
 *     A copy of the GNU General Public License can be found at
 *     http://www.gnu.org/
 *
 * Written by Robert Collins <robertc@hotmail.com>
 *
 */

#include "PickView.h"
#include <commctrl.h>
#include "PickPackageLine.h"
#include "PickCategoryLine.h"
#include "package_db.h"
#include "package_version.h"
#include "dialog.h"
#include "resource.h"


static PickView::Header pkg_headers[] = {
  {"Current", 7, 0, 0},
  {"New", 3, 0, 0},
  {"Src?", 4, 0, 0},
  {"Category", 8, 0, 0},
  {"Package", 7, 0, 0},
  {0, 0, 0, 0}
};

static PickView::Header cat_headers[] = {
  {"Category", 8, 0, 0},
  {"Current", 7, 0, 0},
  {"New", 3, 0, 0},
  {"Src?", 4, 0, 0},
  {"Package", 7, 0, 0},
  {0, 0, 0, 0}
};

// PickView:: views
const PickView::views PickView::views::Unknown (0);
const PickView::views PickView::views::PackageFull (1);
const PickView::views PickView::views::Package = PickView::views (2);
const PickView::views PickView::views::Category (3);

// DoInsertItem - inserts an item into a header control.
// Returns the index of the new item.
// hwndHeader - handle to the header control.
// iInsertAfter - index of the previous item.
// nWidth - width of the new item.
// lpsz - address of the item string.
static int
DoInsertItem (HWND hwndHeader, int iInsertAfter, int nWidth, LPSTR lpsz)
{
  HDITEM hdi;
  int index;

  hdi.mask = HDI_TEXT | HDI_FORMAT | HDI_WIDTH;
  hdi.pszText = lpsz;
  hdi.cxy = nWidth;
  hdi.cchTextMax = lstrlen (hdi.pszText);
  hdi.fmt = HDF_LEFT | HDF_STRING;

  index = SendMessage (hwndHeader, HDM_INSERTITEM,
                       (WPARAM) iInsertAfter, (LPARAM) & hdi);

  return index;
}


void
PickView::set_headers ()
{
  if (view_mode == views::Unknown)
    return;
  if (view_mode == views::PackageFull ||
      view_mode == views::Package)
    {
      headers = pkg_headers;
      current_col = 0;
      new_col = 1;
      src_col = 2;
      cat_col = 3;
      pkg_col = 4;
      last_col = 4;
    }
  else if (view_mode == views::Category)
    {
      headers = cat_headers;
      current_col = 1;
      new_col = 2;
      src_col = 3;
      cat_col = 0;
      pkg_col = 4;
      last_col = 4;
    }
  else
    return;
  while (int n = SendMessage (listheader, HDM_GETITEMCOUNT, 0, 0))
    {
      SendMessage (listheader, HDM_DELETEITEM, n - 1, 0);
    }
  int i;
  for (i = 0; i <= last_col; i++)
    DoInsertItem (listheader, i, headers[i].width, (char *) headers[i].text);
}

void
PickView::note_width (PickView::Header *hdrs, HDC dc, String const &string, int addend,
            int column)
{
  if (!string.size())
    {
      if (hdrs[column].width < addend)
        hdrs[column].width = addend;
      return;
    }
  SIZE s;
  GetTextExtentPoint32 (dc, string.cstr_oneuse(), string.size(), &s);
  if (hdrs[column].width < s.cx + addend)
    hdrs[column].width = s.cx + addend;
}

void
PickView::set_view_mode (PickView::views _mode)
{
  view_mode = _mode;
  set_headers ();
}

const char *
PickView::mode_caption ()
{
  return view_mode.caption ();
}

const char *
PickView::views::caption ()
{
  switch (_value)
    {
    case 1:
      return "Full";
    case 2:
      return "Partial";
    case 3:
      return "Category";
    default:
      return "";
    }
}

void
PickView::insert_pkg (packagemeta & pkg)
{
  if (view_mode != views::Category)
    {
      PickPackageLine & line = *new PickPackageLine (*this, pkg);
      contents.insert (line);
    }
  else
    {
      for (size_t x = 1; x <= pkg.Categories.number (); x++)
        {
          Category & cat = pkg.Categories[x]->key;
          // Special case - yuck
          if (cat == Category ("All"))
            continue;
          PickCategoryLine & catline = *new PickCategoryLine (*this, cat, 1);
          PickPackageLine & line = *new PickPackageLine (*this, pkg);
          catline.insert (line);
          contents.insert (catline);
        }
    }
}

void
PickView::insert_category (Category * cat, bool collapsed)
{
  if (*cat == Category ("All"))
    return;
  PickCategoryLine & catline = *new PickCategoryLine (*this, *cat, 1, collapsed);
  for (CategoryPackage * catpkg = cat->packages; catpkg;
       catpkg = catpkg->next)
    {

      PickPackageLine & line = *new PickPackageLine (*this, *catpkg->pkg);
      catline.insert (line);
    }
  contents.insert (catline);
}

void
PickView::clear_view (void)
{
  contents.empty ();
  if (view_mode == views::Unknown)
    return;
  if (view_mode == views::PackageFull ||
      view_mode == views::Package)
    contents.ShowLabel (false);
  else if (view_mode == views::Category)
    contents.ShowLabel ();
}

PickView::views&
PickView::views::operator++ ()
{
  ++_value;
  if (_value > Category._value)
    _value = 1;
  return *this;
}

int
PickView::click (int row, int x)
{
  return contents.click (0, row, x);
}


void
PickView::scroll (HWND hwnd, int which, int *var, int code)
{
  SCROLLINFO si;
  si.cbSize = sizeof (si);
  si.fMask = SIF_ALL;
  GetScrollInfo (hwnd, which, &si);

  switch (code)
    {
    case SB_THUMBTRACK:
      si.nPos = si.nTrackPos;
      break;
    case SB_THUMBPOSITION:
      break;
    case SB_BOTTOM:
      si.nPos = si.nMax;
      break;
    case SB_TOP:
      si.nPos = 0;
      break;
    case SB_LINEDOWN:
      si.nPos += row_height;
      break;
    case SB_LINEUP:
      si.nPos -= row_height;
      break;
    case SB_PAGEDOWN:
      si.nPos += si.nPage * 9 / 10;
      break;
    case SB_PAGEUP:
      si.nPos -= si.nPage * 9 / 10;
      break;
    }

  if ((int) si.nPos < 0)
    si.nPos = 0;
  if (si.nPos + si.nPage > (unsigned int) si.nMax)
    si.nPos = si.nMax - si.nPage;

  si.fMask = SIF_POS;
  SetScrollInfo (hwnd, which, &si, TRUE);

  int ox = scroll_ulc_x;
  int oy = scroll_ulc_y;
  *var = si.nPos;

  RECT cr, sr;
  GetClientRect (hwnd, &cr);
  sr = cr;
  sr.top += header_height;
  UpdateWindow (hwnd);
  ScrollWindow (hwnd, ox - scroll_ulc_x, oy - scroll_ulc_y, &sr, &sr);
  /*
     sr.bottom = sr.top;
     sr.top = cr.top;
     ScrollWindow (hwnd, ox - scroll_ulc_x, 0, &sr, &sr);
   */
  if (ox - scroll_ulc_x)
    {
      GetClientRect (listheader, &cr);
      sr = cr;
//  UpdateWindow (htmp);
      MoveWindow (listheader, -scroll_ulc_x, 0,
                  headers[last_col].x +
                  headers[last_col].width, header_height, TRUE);
    }
  UpdateWindow (hwnd);
}

void
PickView::init_headers (HDC dc)
{
  int i;

  for (i = 0; headers[i].text; i++)
    {
      headers[i].width = 0;
      headers[i].x = 0;
    }

  for (i = 0; headers[i].text; i++)
    note_width (headers, dc, headers[i].text, HMARGIN, i);
  /* src checkbox */
  note_width (headers, dc, 0, HMARGIN + 11, src_col);
  packagedb db;
  for (size_t n = 1; n <= db.categories.number (); n++)
      note_width (headers, dc, String ("+ ")+db.categories[n]->name, HMARGIN, cat_col);
  for (size_t n = 1; n <= db.packages.number (); n++)
    {
      packagemeta & pkg = *db.packages[n];
      if (pkg.installed)
        note_width (headers, dc, pkg.installed->Canonical_version (),
                    HMARGIN, current_col);
      for (size_t n = 1; n <= pkg.versions.number (); n++)
        if (pkg.versions[n] != pkg.installed)
          note_width (headers, dc,
                      pkg.versions[n]->Canonical_version (),
                      NEW_COL_SIZE_SLOP + HMARGIN, new_col);
      String s = pkg.name;
      if (pkg.SDesc ().size())
	s += String (": ") + pkg.SDesc ();
      note_width (headers, dc, s, HMARGIN, pkg_col);
    }
  note_width (headers, dc, "keep", NEW_COL_SIZE_SLOP + HMARGIN, new_col);
  note_width (headers, dc, "uninstall", NEW_COL_SIZE_SLOP + HMARGIN, new_col);

  headers[0].x = 0;
  for (i = 1; i <= last_col; i++)
    headers[i].x = headers[i - 1].x + headers[i - 1].width;
}


PickView::PickView (views _mode, HWND lv, Category &cat) : deftrust (TRUST_UNKNOWN),
contents (*this, cat, 0, false, true), listview (lv)
{

  HDC dc = GetDC (listview);
  sysfont = GetStockObject (DEFAULT_GUI_FONT);
  SelectObject (dc, sysfont);
  GetTextMetrics (dc, &tm);

  bitmap_dc = CreateCompatibleDC (dc);
  bm_spin = LoadImage (hinstance, MAKEINTRESOURCE (IDB_SPIN), IMAGE_BITMAP, 0, 0, 0);
  bm_rtarrow = LoadImage (hinstance, MAKEINTRESOURCE (IDB_RTARROW), IMAGE_BITMAP,
                              0, 0, 0);

  bm_checkyes = LoadImage (hinstance, MAKEINTRESOURCE (IDB_CHECK_YES), IMAGE_BITMAP,
                               0, 0, 0);
  bm_checkno = LoadImage (hinstance, MAKEINTRESOURCE (IDB_CHECK_NO), IMAGE_BITMAP,
                              0, 0, 0);
  bm_checkna = LoadImage (hinstance, MAKEINTRESOURCE (IDB_CHECK_NA), IMAGE_BITMAP,
                              0, 0, 0);

  row_height = (tm.tmHeight + tm.tmExternalLeading + ROW_MARGIN);
  int
    irh =
    tm.
    tmExternalLeading +
    tm.
    tmDescent +
    11 +
    ROW_MARGIN;
  if (row_height < irh)
    row_height = irh;

  RECT rcParent;
  HDLAYOUT hdl;
  WINDOWPOS wp;

  // Ensure that the common control DLL is loaded, and then create
  // the header control.
  INITCOMMONCONTROLSEX controlinfo =
  {
  sizeof (INITCOMMONCONTROLSEX), ICC_LISTVIEW_CLASSES};
  InitCommonControlsEx (&controlinfo);

  if ((listheader = CreateWindowEx (0, WC_HEADER, (LPCTSTR) NULL,
                                    WS_CHILD | WS_BORDER | CCS_NORESIZE |
                                    // | HDS_BUTTONS
                                    HDS_HORZ, 0, 0, 0, 0, listview,
                                    (HMENU) IDC_CHOOSE_LISTHEADER, hinstance,
                                    (LPVOID) NULL)) == NULL)
    // FIXME: throw an exception
    exit (10);

  // Retrieve the bounding rectangle of the parent window's
  // client area, and then request size and position values
  // from the header control.
  GetClientRect (listview, &rcParent);

  hdl.prc = &rcParent;
  hdl.pwpos = &wp;
  if (!SendMessage (listheader, HDM_LAYOUT, 0, (LPARAM) & hdl))
    // FIXME: throw an exception
    exit (11);


  // Set the size, position, and visibility of the header control.
  SetWindowPos (listheader, wp.hwndInsertAfter, wp.x, wp.y,
                wp.cx, wp.cy, wp.flags | SWP_SHOWWINDOW);

  header_height = wp.cy;

  view_mode = PickView::views::Package;
  set_headers ();
  init_headers (dc);
  view_mode = PickView::views::Category;
  set_headers ();
  init_headers (dc);

  view_mode = _mode;
  set_headers ();

  ReleaseDC (lv, dc);
}
Commit	Line	Data
97647369 RC	1	/*
	2	* Copyright (c) 2002 Robert Collins.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*
	9	* A copy of the GNU General Public License can be found at
	10	* http://www.gnu.org/
	11	*
	12	* Written by Robert Collins <robertc@hotmail.com>
	13	*
	14	*/
	15
	16	#include "PickView.h"
	17	#include <commctrl.h>
	18	#include "PickPackageLine.h"
	19	#include "PickCategoryLine.h"
	20	#include "package_db.h"
	21	#include "package_version.h"
	22	#include "dialog.h"
	23	#include "resource.h"
	24
	25
	26	static PickView::Header pkg_headers[] = {
	27	{"Current", 7, 0, 0},
	28	{"New", 3, 0, 0},
	29	{"Src?", 4, 0, 0},
	30	{"Category", 8, 0, 0},
	31	{"Package", 7, 0, 0},
	32	{0, 0, 0, 0}
	33	};
	34
	35	static PickView::Header cat_headers[] = {
	36	{"Category", 8, 0, 0},
	37	{"Current", 7, 0, 0},
	38	{"New", 3, 0, 0},
	39	{"Src?", 4, 0, 0},
	40	{"Package", 7, 0, 0},
	41	{0, 0, 0, 0}
	42	};
	43
	44	// PickView:: views
	45	const PickView::views PickView::views::Unknown (0);
	46	const PickView::views PickView::views::PackageFull (1);
	47	const PickView::views PickView::views::Package = PickView::views (2);
	48	const PickView::views PickView::views::Category (3);
	49
	50	// DoInsertItem - inserts an item into a header control.
	51	// Returns the index of the new item.
	52	// hwndHeader - handle to the header control.
	53	// iInsertAfter - index of the previous item.
	54	// nWidth - width of the new item.
	55	// lpsz - address of the item string.
	56	static int
	57	DoInsertItem (HWND hwndHeader, int iInsertAfter, int nWidth, LPSTR lpsz)
	58	{
	59	HDITEM hdi;
	60	int index;
	61
	62	hdi.mask = HDI_TEXT \| HDI_FORMAT \| HDI_WIDTH;
	63	hdi.pszText = lpsz;
	64	hdi.cxy = nWidth;
65	hdi.cchTextMax = lstrlen (hdi.pszText);
66	hdi.fmt = HDF_LEFT \| HDF_STRING;
67
68	index = SendMessage (hwndHeader, HDM_INSERTITEM,
69	(WPARAM) iInsertAfter, (LPARAM) & hdi);
70
71	return index;
72	}
73
74
75
76	void
77	PickView::set_headers ()
78	{
79	if (view_mode == views::Unknown)
80	return;
81	if (view_mode == views::PackageFull \|\|
82	view_mode == views::Package)
83	{
84	headers = pkg_headers;
85	current_col = 0;
86	new_col = 1;
87	src_col = 2;
88	cat_col = 3;
89	pkg_col = 4;
90	last_col = 4;
91	}
92	else if (view_mode == views::Category)
93	{
94	headers = cat_headers;
95	current_col = 1;
96	new_col = 2;
97	src_col = 3;
98	cat_col = 0;
99	pkg_col = 4;
100	last_col = 4;
101	}
102	else
103	return;
104	while (int n = SendMessage (listheader, HDM_GETITEMCOUNT, 0, 0))
105	{
106	SendMessage (listheader, HDM_DELETEITEM, n - 1, 0);
107	}
108	int i;
109	for (i = 0; i <= last_col; i++)
110	DoInsertItem (listheader, i, headers[i].width, (char *) headers[i].text);
111	}
112
113	void
3c054baf	114	PickView::note_width (PickView::Header *hdrs, HDC dc, String const &string, int addend,
97647369 RC	115	int column)
97647369 RC	116	{
3c054baf	117	if (!string.size())
97647369 RC	118	{
	119	if (hdrs[column].width < addend)
	120	hdrs[column].width = addend;
	121	return;
	122	}
	123	SIZE s;
3c054baf	124	GetTextExtentPoint32 (dc, string.cstr_oneuse(), string.size(), &s);
97647369 RC	125	if (hdrs[column].width < s.cx + addend)
	126	hdrs[column].width = s.cx + addend;
	127	}
	128
	129	void
	130	PickView::set_view_mode (PickView::views _mode)
	131	{
	132	view_mode = _mode;
	133	set_headers ();
	134	}
	135
	136	const char *
	137	PickView::mode_caption ()
	138	{
	139	return view_mode.caption ();
	140	}
	141
	142	const char *
	143	PickView::views::caption ()
	144	{
	145	switch (_value)
	146	{
	147	case 1:
	148	return "Full";
	149	case 2:
	150	return "Partial";
	151	case 3:
	152	return "Category";
	153	default:
	154	return "";
	155	}
	156	}
	157
	158	void
	159	PickView::insert_pkg (packagemeta & pkg)
	160	{
	161	if (view_mode != views::Category)
	162	{
	163	PickPackageLine & line = new PickPackageLine (this, pkg);
	164	contents.insert (line);
	165	}
	166	else
	167	{
	168	for (size_t x = 1; x <= pkg.Categories.number (); x++)
	169	{
	170	Category & cat = pkg.Categories[x]->key;
	171	// Special case - yuck
	172	if (cat == Category ("All"))
	173	continue;
	174	PickCategoryLine & catline = new PickCategoryLine (this, cat, 1);
	175	PickPackageLine & line = new PickPackageLine (this, pkg);
	176	catline.insert (line);
	177	contents.insert (catline);
	178	}
	179	}
	180	}
	181
	182	void
	183	PickView::insert_category (Category * cat, bool collapsed)
	184	{
	185	if (*cat == Category ("All"))
	186	return;
	187	PickCategoryLine & catline = new PickCategoryLine (this, *cat, 1, collapsed);
	188	for (CategoryPackage * catpkg = cat->packages; catpkg;
189	catpkg = catpkg->next)
190	{
191
192	PickPackageLine & line = new PickPackageLine (this, *catpkg->pkg);
193	catline.insert (line);
194	}
195	contents.insert (catline);
196	}
197
198	void
199	PickView::clear_view (void)
200	{
201	contents.empty ();
202	if (view_mode == views::Unknown)
203	return;
204	if (view_mode == views::PackageFull \|\|
205	view_mode == views::Package)
206	contents.ShowLabel (false);
207	else if (view_mode == views::Category)
208	contents.ShowLabel ();
209	}
210
211	PickView::views&
212	PickView::views::operator++ ()
213	{
214	++_value;
215	if (_value > Category._value)
216	_value = 1;
217	return *this;
218	}
219
220	int
221	PickView::click (int row, int x)
222	{
223	return contents.click (0, row, x);
224	}
225
226
227	void
228	PickView::scroll (HWND hwnd, int which, int *var, int code)
229	{
230	SCROLLINFO si;
231	si.cbSize = sizeof (si);
232	si.fMask = SIF_ALL;
233	GetScrollInfo (hwnd, which, &si);
234
235	switch (code)
236	{
237	case SB_THUMBTRACK:
238	si.nPos = si.nTrackPos;
239	break;
240	case SB_THUMBPOSITION:
241	break;
242	case SB_BOTTOM:
243	si.nPos = si.nMax;
244	break;
245	case SB_TOP:
246	si.nPos = 0;
247	break;
248	case SB_LINEDOWN:
249	si.nPos += row_height;
250	break;
251	case SB_LINEUP:
252	si.nPos -= row_height;
253	break;
254	case SB_PAGEDOWN:
255	si.nPos += si.nPage * 9 / 10;
256	break;
257	case SB_PAGEUP:
258	si.nPos -= si.nPage * 9 / 10;
259	break;
260	}
261
262	if ((int) si.nPos < 0)
263	si.nPos = 0;
264	if (si.nPos + si.nPage > (unsigned int) si.nMax)
265	si.nPos = si.nMax - si.nPage;
266
267	si.fMask = SIF_POS;
268	SetScrollInfo (hwnd, which, &si, TRUE);
269
270	int ox = scroll_ulc_x;
271	int oy = scroll_ulc_y;
272	*var = si.nPos;
273
274	RECT cr, sr;
275	GetClientRect (hwnd, &cr);
276	sr = cr;
277	sr.top += header_height;
278	UpdateWindow (hwnd);
279	ScrollWindow (hwnd, ox - scroll_ulc_x, oy - scroll_ulc_y, &sr, &sr);
280	/*
281	sr.bottom = sr.top;
282	sr.top = cr.top;
283	ScrollWindow (hwnd, ox - scroll_ulc_x, 0, &sr, &sr);
284	*/
285	if (ox - scroll_ulc_x)
286	{
287	GetClientRect (listheader, &cr);
288	sr = cr;
289	// UpdateWindow (htmp);
290	MoveWindow (listheader, -scroll_ulc_x, 0,
291	headers[last_col].x +
292	headers[last_col].width, header_height, TRUE);
293	}
294	UpdateWindow (hwnd);
295	}
296
297	void
298	PickView::init_headers (HDC dc)
299	{
300	int i;
301
302	for (i = 0; headers[i].text; i++)
303	{
304	headers[i].width = 0;
305	headers[i].x = 0;
306	}
307
308	for (i = 0; headers[i].text; i++)
309	note_width (headers, dc, headers[i].text, HMARGIN, i);
310	/* src checkbox */
311	note_width (headers, dc, 0, HMARGIN + 11, src_col);
312	packagedb db;
3c054baf RC	313	for (size_t n = 1; n <= db.categories.number (); n++)
3c054baf RC	314	note_width (headers, dc, String ("+ ")+db.categories[n]->name, HMARGIN, cat_col);
97647369 RC	315	for (size_t n = 1; n <= db.packages.number (); n++)
	316	{
	317	packagemeta & pkg = *db.packages[n];
	318	if (pkg.installed)
	319	note_width (headers, dc, pkg.installed->Canonical_version (),
	320	HMARGIN, current_col);
	321	for (size_t n = 1; n <= pkg.versions.number (); n++)
	322	if (pkg.versions[n] != pkg.installed)
	323	note_width (headers, dc,
	324	pkg.versions[n]->Canonical_version (),
	325	NEW_COL_SIZE_SLOP + HMARGIN, new_col);
3c054baf RC	326	String s = pkg.name;
	327	if (pkg.SDesc ().size())
	328	s += String (": ") + pkg.SDesc ();
	329	note_width (headers, dc, s, HMARGIN, pkg_col);
97647369 RC	330	}
	331	note_width (headers, dc, "keep", NEW_COL_SIZE_SLOP + HMARGIN, new_col);
	332	note_width (headers, dc, "uninstall", NEW_COL_SIZE_SLOP + HMARGIN, new_col);
	333
	334	headers[0].x = 0;
	335	for (i = 1; i <= last_col; i++)
	336	headers[i].x = headers[i - 1].x + headers[i - 1].width;
	337	}
	338
	339
	340	PickView::PickView (views _mode, HWND lv, Category &cat) : deftrust (TRUST_UNKNOWN),
	341	contents (*this, cat, 0, false, true), listview (lv)
	342	{
	343
	344	HDC dc = GetDC (listview);
	345	sysfont = GetStockObject (DEFAULT_GUI_FONT);
	346	SelectObject (dc, sysfont);
	347	GetTextMetrics (dc, &tm);
	348
	349	bitmap_dc = CreateCompatibleDC (dc);
	350	bm_spin = LoadImage (hinstance, MAKEINTRESOURCE (IDB_SPIN), IMAGE_BITMAP, 0, 0, 0);
	351	bm_rtarrow = LoadImage (hinstance, MAKEINTRESOURCE (IDB_RTARROW), IMAGE_BITMAP,
	352	0, 0, 0);
	353
	354	bm_checkyes = LoadImage (hinstance, MAKEINTRESOURCE (IDB_CHECK_YES), IMAGE_BITMAP,
	355	0, 0, 0);
	356	bm_checkno = LoadImage (hinstance, MAKEINTRESOURCE (IDB_CHECK_NO), IMAGE_BITMAP,
	357	0, 0, 0);
	358	bm_checkna = LoadImage (hinstance, MAKEINTRESOURCE (IDB_CHECK_NA), IMAGE_BITMAP,
	359	0, 0, 0);
	360
	361	row_height = (tm.tmHeight + tm.tmExternalLeading + ROW_MARGIN);
	362	int
	363	irh =
	364	tm.
	365	tmExternalLeading +
	366	tm.
	367	tmDescent +
	368	11 +
	369	ROW_MARGIN;
	370	if (row_height < irh)
	371	row_height = irh;
	372
	373	RECT rcParent;
	374	HDLAYOUT hdl;
	375	WINDOWPOS wp;
	376
	377	// Ensure that the common control DLL is loaded, and then create
	378	// the header control.
	379	INITCOMMONCONTROLSEX controlinfo =
	380	{
	381	sizeof (INITCOMMONCONTROLSEX), ICC_LISTVIEW_CLASSES};
	382	InitCommonControlsEx (&controlinfo);
	383
	384	if ((listheader = CreateWindowEx (0, WC_HEADER, (LPCTSTR) NULL,
	385	WS_CHILD \| WS_BORDER \| CCS_NORESIZE \|
	386	// \| HDS_BUTTONS
	387	HDS_HORZ, 0, 0, 0, 0, listview,
	388	(HMENU) IDC_CHOOSE_LISTHEADER, hinstance,
	389	(LPVOID) NULL)) == NULL)
	390	// FIXME: throw an exception
	391	exit (10);
	392
	393	// Retrieve the bounding rectangle of the parent window's
394	// client area, and then request size and position values
395	// from the header control.
396	GetClientRect (listview, &rcParent);
397
398	hdl.prc = &rcParent;
399	hdl.pwpos = &wp;
400	if (!SendMessage (listheader, HDM_LAYOUT, 0, (LPARAM) & hdl))
401	// FIXME: throw an exception
402	exit (11);
403
404
405	// Set the size, position, and visibility of the header control.
406	SetWindowPos (listheader, wp.hwndInsertAfter, wp.x, wp.y,
407	wp.cx, wp.cy, wp.flags \| SWP_SHOWWINDOW);
408
409	header_height = wp.cy;
410
411	view_mode = PickView::views::Package;
412	set_headers ();
413	init_headers (dc);
414	view_mode = PickView::views::Category;
415	set_headers ();
416	init_headers (dc);
417
418	view_mode = _mode;
419	set_headers ();
420
421	ReleaseDC (lv, dc);
422	}