Microsoft/Windows2000
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Windows2000/private/shell/win16/commctrl/lvicon.c

2468 lines
66 KiB
C
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First commit
2001-01-01 00:00:00 +01:00
// large icon view stuff
#include "ctlspriv.h"
#include "listview.h"
#ifdef FE_IME
#include <imm.h>
static char const szIMECompPos[]="IMECompPos";
#endif
#define ICONCXLABEL(pl, pi) ((pl->style & LVS_NOLABELWRAP) ? pi->cxSingleLabel : pi->cxMultiLabel)
void NEAR PASCAL ListView_IDrawItem(LV* plv, int i, HDC hdc, LPPOINT lpptOrg, RECT FAR* prcClip, UINT fDraw)
{
RECT rcIcon;
RECT rcLabel;
RECT rcBounds;
RECT rcT;
ListView_GetRects(plv, i, &rcIcon, &rcLabel, &rcBounds, NULL);
if (!prcClip || IntersectRect(&rcT, prcClip, &rcBounds))
{
LV_ITEM item;
char ach[CCHLABELMAX];
UINT fText;
if (lpptOrg)
{
OffsetRect(&rcIcon, lpptOrg->x - rcBounds.left,
lpptOrg->y - rcBounds.top);
OffsetRect(&rcLabel, lpptOrg->x - rcBounds.left,
lpptOrg->y - rcBounds.top);
}
item.iItem = i;
item.iSubItem = 0;
item.mask = LVIF_TEXT | LVIF_IMAGE | LVIF_STATE;
item.stateMask = LVIS_ALL;
item.pszText = ach;
item.cchTextMax = sizeof(ach);
ListView_OnGetItem(plv, &item);
fText = ListView_DrawImage(plv, &item, hdc,
rcIcon.left + g_cxIconMargin, rcIcon.top + g_cyIconMargin, fDraw);
// Don't draw label if it's being edited...
if (plv->iEdit != i)
{
if (rcLabel.bottom - rcLabel.top > plv->cyLabelChar)
fText |= SHDT_DRAWTEXT;
else
fText |= SHDT_ELLIPSES;
if (fDraw & LVDI_TRANSTEXT)
fText |= SHDT_TRANSPARENT;
if (item.pszText)
{
// yow! this eats stack. 256 from this proc and 256 from shell_drawtext
SHDrawText(hdc, item.pszText, &rcLabel, LVCFMT_LEFT, fText,
plv->cyLabelChar, plv->cxEllipses, plv->clrText,
(plv->style & WS_DISABLED ? plv->clrBk : plv->clrTextBk));
}
if ((fDraw & LVDI_FOCUS) && (item.state & LVIS_FOCUSED))
DrawFocusRect(hdc, &rcLabel);
}
}
}
int NEAR ListView_IItemHitTest(LV* plv, int x, int y, UINT FAR* pflags)
{
int iHit;
UINT flags;
POINT pt;
// Map window-relative coordinates to view-relative coords...
pt.x = x + plv->ptOrigin.x;
pt.y = y + plv->ptOrigin.y;
// If there are any uncomputed items, recompute them now.
if (plv->rcView.left == RECOMPUTE)
ListView_Recompute(plv);
flags = 0;
for (iHit = 0; iHit < ListView_Count(plv); iHit++)
{
LISTITEM FAR* pitem = ListView_FastGetZItemPtr(plv, iHit);
POINT ptItem;
RECT rcLabel;
RECT rcIcon;
ptItem.x = pitem->pt.x;
ptItem.y = pitem->pt.y;
rcIcon.top = ptItem.y - g_cyIconMargin;
rcLabel.top = ptItem.y + plv->cyIcon + g_cyLabelSpace;
rcLabel.bottom = rcLabel.top + pitem->cyMultiLabel;
// Quick, easy rejection test...
if (pt.y < rcIcon.top || pt.y >= rcLabel.bottom)
continue;
rcIcon.left = ptItem.x - g_cxIconMargin;
rcIcon.right = ptItem.x + plv->cxIcon + g_cxIconMargin;
// We need to make sure there is no gap between the icon and label
rcIcon.bottom = rcLabel.top;
rcLabel.left = ptItem.x + (plv->cxIcon / 2) - (ICONCXLABEL(plv, pitem) / 2);
rcLabel.right = rcLabel.left + ICONCXLABEL(plv, pitem);
if (PtInRect(&rcIcon, pt))
{
flags = LVHT_ONITEMICON;
break;
}
if (PtInRect(&rcLabel, pt))
{
flags = LVHT_ONITEMLABEL;
break;
}
}
if (flags == 0)
{
flags = LVHT_NOWHERE;
iHit = -1;
}
else
{
iHit = DPA_GetPtrIndex(plv->hdpa, ListView_FastGetZItemPtr(plv, iHit));
}
*pflags = flags;
return iHit;
}
// out:
// prcIcon icon bounds including icon margin area
void NEAR ListView_IGetRects(LV* plv, LISTITEM FAR* pitem, RECT FAR* prcIcon, RECT FAR* prcLabel, LPRECT prcBounds)
{
prcIcon->left = pitem->pt.x - g_cxIconMargin - plv->ptOrigin.x;
prcIcon->right = prcIcon->left + plv->cxIcon + 2 * g_cxIconMargin;
prcIcon->top = pitem->pt.y - g_cyIconMargin - plv->ptOrigin.y;
prcIcon->bottom = prcIcon->top + plv->cyIcon + 2 * g_cyIconMargin;
prcLabel->left = pitem->pt.x + (plv->cxIcon / 2) - (ICONCXLABEL(plv, pitem) / 2) - plv->ptOrigin.x;
prcLabel->right = prcLabel->left + ICONCXLABEL(plv, pitem);
prcLabel->top = pitem->pt.y + plv->cyIcon + g_cyLabelSpace - plv->ptOrigin.y;
prcLabel->bottom = prcLabel->top + pitem->cyMultiLabel;
}
int NEAR ListView_GetSlotCount(LV* plv, BOOL fWithoutScrollbars)
{
int cxScreen;
int cyScreen;
int dxItem;
int dyItem;
int iSlots = 1;
BOOL fCheckWithScroll = FALSE;
DWORD style;
// Always use the current client window size to determine
// REVIEW: Should we exclude any vertical scroll bar that may
// exist when computing this? progman.exe does not.
cxScreen = plv->sizeClient.cx;
cyScreen = plv->sizeClient.cy;
if (fWithoutScrollbars) {
style = GetWindowStyle(plv->hwnd);
if (style & WS_VSCROLL)
cxScreen += g_cxScrollbar;
if (style & WS_HSCROLL)
cyScreen += g_cyScrollbar;
}
if (ListView_IsSmallView(plv))
dxItem = plv->cxItem;
else
dxItem = lv_cxIconSpacing;
if (ListView_IsSmallView(plv))
dyItem = plv->cyItem;
else
dyItem = lv_cyIconSpacing;
// Lets see which direction the view states
switch (plv->style & LVS_ALIGNMASK)
{
case LVS_ALIGNBOTTOM:
case LVS_ALIGNTOP:
iSlots = max(1, (cxScreen) / dxItem);
fCheckWithScroll = (BOOL)(style & WS_VSCROLL);
break;
case LVS_ALIGNRIGHT:
case LVS_ALIGNLEFT:
iSlots = max(1, (cyScreen) / dyItem);
fCheckWithScroll = (BOOL)(style & WS_HSCROLL);
break;
default:
Assert(0);
return 1;
}
// if we don't have enough slots total on the screen, we're going to have
// a scrollbar, so recompute with the scrollbars on
if (fWithoutScrollbars && fCheckWithScroll) {
int iTotalSlots = (dxItem * dyItem);
if (iTotalSlots < ListView_Count(plv)) {
iSlots = ListView_GetSlotCount(plv, FALSE);
}
}
return iSlots;
}
// Go through and recompute any icon positions and optionally
// icon label dimensions.
// This function also recomputes the view bounds rectangle.
// The algorithm is to simply search the list for any items needing
// recomputation. For icon positions, we scan possible icon slots
// and check to see if any already-positioned icon intersects the slot.
// If not, the slot is free. As an optimization, we start scanning
// icon slots from the previous slot we found.
void NEAR ListView_Recompute(LV* plv)
{
int i;
int cSlots;
BOOL fUpdateSB;
BOOL fAppendAtEnd = FALSE;
BOOL fLargeIconView;
int iFree;
HDC hdc;
if (!(ListView_IsIconView(plv) || ListView_IsSmallView(plv)))
return;
if (plv->flags & LVF_INRECOMPUTE)
{
return;
}
plv->flags |= LVF_INRECOMPUTE;
fLargeIconView = ListView_IsIconView(plv);
hdc = NULL;
cSlots = ListView_GetSlotCount(plv, FALSE);
// Scan all items for RECOMPUTE, and recompute slot if needed.
fUpdateSB = (plv->rcView.left == RECOMPUTE);
iFree = -1;
for (i = 0; i < ListView_Count(plv); i++)
{
LISTITEM FAR* pitem = ListView_FastGetItemPtr(plv, i);
BOOL fRedraw = FALSE;
if (pitem->cyMultiLabel == SRECOMPUTE)
{
hdc = ListView_RecomputeLabelSize(plv, pitem, i, hdc);
fRedraw = TRUE;
}
if (pitem->pt.y == RECOMPUTE)
{
iFree = ListView_FindFreeSlot(plv, i, iFree + 1, cSlots,
&fUpdateSB, &fAppendAtEnd, &hdc);
Assert(iFree != -1);
ListView_SetIconPos(plv, pitem, iFree, cSlots);
fRedraw = TRUE;
}
if (fRedraw)
{
ListView_InvalidateItem(plv, i, FALSE, RDW_INVALIDATE | RDW_ERASE);
fUpdateSB = TRUE;
}
}
if (hdc)
ReleaseDC(HWND_DESKTOP, hdc);
// If we changed something, recompute the view rectangle
// and then update the scroll bars.
if (fUpdateSB)
{
// NOTE: No infinite recursion results because we're setting
// plv->rcView.left != RECOMPUTE
SetRectEmpty(&plv->rcView);
for (i = 0; i < ListView_Count(plv); i++)
{
RECT rcItem;
ListView_GetRects(plv, i, NULL, NULL, &rcItem, NULL);
UnionRect(&plv->rcView, &plv->rcView, &rcItem);
}
// add a little space at the edges so that we don't bump text
// completely to the end of the window
plv->rcView.bottom += g_cyEdge;
plv->rcView.right += g_cxEdge;
OffsetRect(&plv->rcView, plv->ptOrigin.x, plv->ptOrigin.y);
//DebugMsg(DM_TRACE, "RECOMPUTE: rcView %x %x %x %x", plv->rcView.left, plv->rcView.top, plv->rcView.right, plv->rcView.bottom);
//DebugMsg(DM_TRACE, "Origin %x %x", plv->ptOrigin.x, plv->ptOrigin.y);
ListView_UpdateScrollBars(plv);
}
// Now state we are out of the recompute...
plv->flags &= ~LVF_INRECOMPUTE;
}
void NEAR PASCAL NearestSlot(int FAR *x, int FAR *y, int cxItem, int cyItem)
{
*x += cxItem/2;
*y += cyItem/2;
*x = *x - (*x % cxItem);
*y = *y - (*y % cyItem);
}
void NEAR PASCAL NextSlot(LV* plv, LPRECT lprc)
{
int cxItem;
if (ListView_IsSmallView(plv))
{
cxItem = plv->cxItem;
}
else
{
cxItem = lv_cxIconSpacing;
}
lprc->left += cxItem;
lprc->right += cxItem;
}
BOOL NEAR _CalcSlotRect(LV* plv, int iSlot, int cSlot, BOOL fBias, LPRECT lprc)
{
int cxItem, cyItem;
BOOL fSmallIcon;
Assert(plv);
if (cSlot < 1)
cSlot = 1;
if (fSmallIcon = ListView_IsSmallView(plv))
{
cxItem = plv->cxItem;
cyItem = plv->cyItem;
}
else
{
cxItem = lv_cxIconSpacing;
cyItem = lv_cyIconSpacing;
}
// Lets see which direction the view states
switch (plv->style & LVS_ALIGNMASK)
{
case LVS_ALIGNBOTTOM:
// Assert False (Change default in shell2d.. to ALIGN_TOP)
case LVS_ALIGNTOP:
lprc->left = (iSlot % cSlot) * cxItem;
lprc->top = (iSlot / cSlot) * cyItem;
break;
case LVS_ALIGNLEFT:
lprc->top = (iSlot % cSlot) * cyItem;
lprc->left = (iSlot / cSlot) * cxItem;
break;
case LVS_ALIGNRIGHT:
Assert(FALSE); // Not implemented yet...
break;
}
if (fBias)
{
lprc->left -= plv->ptOrigin.x;
lprc->top -= plv->ptOrigin.y;
}
lprc->bottom = lprc->top + cyItem;
lprc->right = lprc->left + cxItem;
return(fSmallIcon);
}
// Find an icon slot that doesn't intersect an icon.
// Start search for free slot from slot i.
int NEAR ListView_FindFreeSlot(LV* plv, int iItem, int i, int cSlot, BOOL FAR* pfUpdate,
BOOL FAR *pfAppend, HDC FAR* phdc)
{
int j;
HDC hdc;
RECT rcSlot;
RECT rcItem;
RECT rc;
int xMax = -1;
int yMax = -1;
int cItems;
// Horrible N-squared algorithm:
// enumerate each slot and see if any items intersect it.
// REVIEW: This is really slow with long lists (e.g., 1000)
hdc = NULL;
cItems = ListView_Count(plv);
// If the Append at end is set, we should be able to simply get the
// rectangle of the i-1 element and check against it instead of
// looking at every other item...
if (*pfAppend)
{
Assert(iItem > 0);
// Be carefull about going of the end of the list. (i is a slot
// number not an item index).
ListView_GetRects(plv, iItem-1, NULL, NULL, &rcItem, NULL);
}
for ( ; ; i++)
{
// Compute view-relative slot rectangle...
_CalcSlotRect(plv, i, cSlot, TRUE, &rcSlot);
if (*pfAppend)
{
if (!IntersectRect(&rc, &rcItem, &rcSlot))
return i; // Found a free slot...
}
else
{
for (j = cItems; j-- > 0; )
{
LISTITEM FAR* pitem = ListView_FastGetItemPtr(plv, j);
if (pitem->pt.y != RECOMPUTE)
{
// If the dimensions aren't computed, then do it now.
if (pitem->cyMultiLabel == SRECOMPUTE)
{
*phdc = ListView_RecomputeLabelSize(plv, pitem, i, *phdc);
// Ensure that the item gets redrawn...
ListView_InvalidateItem(plv, i, FALSE, RDW_INVALIDATE | RDW_ERASE);
// Set flag indicating that scroll bars need to be
// adjusted.
*pfUpdate = TRUE;
}
ListView_GetRects(plv, j, NULL, NULL, &rc, NULL);
if (IntersectRect(&rc, &rc, &rcSlot))
break;
}
}
if (j < 0)
break;
}
}
if ( (rcSlot.bottom > yMax) ||
((rcSlot.bottom == yMax) && (rcSlot.right > xMax)))
*pfAppend = TRUE;
return i;
}
// Recompute an item's label size (cxLabel/cyLabel). For speed, this function
// is passed a DC to use for text measurement.
// If hdc is NULL, then this function will get a DC and return it. Otherwise,
// the returned hdc is the same as the one passed in. It's the caller's
// responsibility to eventually release the DC.
HDC NEAR ListView_RecomputeLabelSize(LV* plv, LISTITEM FAR* pitem, int i, HDC hdc)
{
char szLabel[CCHLABELMAX + 4];
int cchLabel;
RECT rcSingle, rcMulti;
LV_ITEM item;
Assert(plv);
Assert(pitem);
// Get the DC and select the font only once for entire loop.
if (!hdc)
{
// we return this DC and have the calller release it
hdc = GetDC(HWND_DESKTOP);
SelectFont(hdc, plv->hfontLabel);
}
item.mask = LVIF_TEXT;
item.iItem = i;
item.iSubItem = 0;
item.pszText = szLabel;
item.cchTextMax = sizeof(szLabel);
item.stateMask = 0;
ListView_OnGetItem(plv, &item);
if (!item.pszText)
{
SetRectEmpty(&rcSingle);
rcMulti = rcSingle;
goto Exit;
}
if (item.pszText != szLabel)
lstrcpy(szLabel, item.pszText);
cchLabel = lstrlen(szLabel);
rcMulti.left = rcMulti.top = rcMulti.bottom = 0;
rcMulti.right = lv_cxIconSpacing - g_cxLabelMargin * 2;
rcSingle = rcMulti;
if (cchLabel > 0)
{
// Strip off spaces so they're not included in format
// REVIEW: Is this is a DrawText bug?
while (cchLabel > 1 && szLabel[cchLabel - 1] == ' ')
szLabel[--cchLabel] = 0;
DrawText(hdc, szLabel, cchLabel, &rcSingle, (DT_LV | DT_CALCRECT));
#ifdef WIN32
DrawText(hdc, szLabel, cchLabel, &rcMulti, (DT_LVWRAP | DT_WORD_ELLIPSIS | DT_CALCRECT));
#else
DrawText(hdc, szLabel, cchLabel, &rcMulti, (DT_LVWRAP | DT_CALCRECT));
#endif
}
else
{
rcMulti.bottom = rcMulti.top + plv->cyLabelChar;
}
Exit:
pitem->cxSingleLabel = (rcSingle.right - rcSingle.left) + 2 * g_cxLabelMargin;
pitem->cxMultiLabel = (rcMulti.right - rcMulti.left) + 2 * g_cxLabelMargin;
pitem->cyMultiLabel = (short)(rcMulti.bottom - rcMulti.top);
return hdc;
}
// Set up an icon slot position. Returns FALSE if position didn't change.
BOOL NEAR ListView_SetIconPos(LV* plv, LISTITEM FAR* pitem, int iSlot, int cSlot)
{
RECT rc;
Assert(plv);
// Sort of a hack, this internal function return TRUE if small icon.
if (!_CalcSlotRect(plv, iSlot, cSlot, FALSE, &rc))
{
rc.left += g_cxIconOffset;
rc.top += g_cyIconOffset;
}
if (rc.left != pitem->pt.x || rc.top != pitem->pt.y)
{
pitem->pt.x = rc.left;
pitem->pt.y = rc.top;
// REVIEW: Performance idea:
// Invalidate rcView only if this icon's old or new position
// touches or is outside of the current rcView.
// If we do this, then we must change the various tests
// of rcView.left == RECOMPUTE to more specific tests of pitem->...
plv->rcView.left = RECOMPUTE;
return TRUE;
}
return FALSE;
}
void NEAR ListView_GetViewRect2(LV* plv, RECT FAR* prcView, int cx, int cy)
{
if (plv->rcView.left == RECOMPUTE)
ListView_Recompute(plv);
*prcView = plv->rcView;
OffsetRect(prcView, -plv->ptOrigin.x, -plv->ptOrigin.y);
if (ListView_IsIconView(plv) || ListView_IsSmallView(plv)) {
// don't do that funky half-re-origining thing.
RECT rc;
rc.left = 0;
rc.top = 0;
rc.bottom = rc.top + 1;
rc.right = rc.left + 1;
UnionRect(prcView, prcView, &rc);
rc.right = cx;
rc.bottom = cy;
rc.left = rc.right - 1;
rc.top = rc.bottom - 1;
UnionRect(prcView, prcView, &rc);
#if 0
// if we're scrolled way in the positive area (plv->ptOrigin > 0), make sure we
// include our true origin
if ((prcView->left > -plv->ptOrigin.x))
prcView->left = -plv->ptOrigin.x;
if ((prcView->top > -plv->ptOrigin.y))
prcView->top = -plv->ptOrigin.y;
// if we're scrolled way in the positive area (plv->ptOrigin > 0),
// make sure our scrollbars include our current position
if ((prcView->right < (plv->sizeClient.cx)))
prcView->right = plv->sizeClient.cx;
if ((prcView->bottom < (plv->sizeClient.cy)))
prcView->bottom = plv->sizeClient.cy;
#endif
}
}
// prcViewRect used only if fSubScroll is TRUE
DWORD NEAR ListView_GetClientRect(LV* plv, RECT FAR* prcClient, BOOL fSubScroll, RECT FAR *prcViewRect)
{
RECT rcClient;
RECT rcView;
DWORD style;
#if 1
// do this instead of the #else below because
// in new versus old apps, you may need to add in g_c?Border because of
// the one pixel overlap...
GetWindowRect(plv->hwnd, &rcClient);
if (GetWindowLong(plv->hwnd, GWL_EXSTYLE) & (WS_EX_CLIENTEDGE | WS_EX_STATICEDGE | WS_EX_WINDOWEDGE)) {
rcClient.right -= 2 * g_cxEdge;
rcClient.bottom -= 2 * g_cyEdge;
}
rcClient.right -= rcClient.left;
rcClient.bottom -= rcClient.top;
if (rcClient.right < 0)
rcClient.right = 0;
if (rcClient.bottom < 0)
rcClient.bottom = 0;
rcClient.top = rcClient.left = 0;
#else
style = GetWindowStyle(plv->hwnd);
GetClientRect(plv->hwnd, &rcClient);
if (style & WS_VSCROLL)
rcClient.right += g_cxScrollbar;
if (style & WS_HSCROLL)
rcClient.bottom += g_cyScrollbar;
#endif
style = 0L;
if (fSubScroll)
{
ListView_GetViewRect2(plv, &rcView,
rcClient.right - g_cxScrollbar,
rcClient.bottom - g_cyScrollbar);
if ((rcClient.left < rcClient.right) && (rcClient.top < rcClient.bottom))
{
do
{
if (rcView.left < rcClient.left || rcView.right > rcClient.right)
{
style |= WS_HSCROLL;
rcClient.bottom -= g_cyScrollbar;
}
if (rcView.top < rcClient.top || rcView.bottom > rcClient.bottom)
{
style |= WS_VSCROLL;
rcClient.right -= g_cxScrollbar;
}
}
while (!(style & WS_HSCROLL) && rcView.right > rcClient.right);
}
if (prcViewRect)
*prcViewRect = rcView;
}
*prcClient = rcClient;
return style;
}
int CALLBACK ArrangeIconCompare(LISTITEM FAR* pitem1, LISTITEM FAR* pitem2, LPARAM lParam)
{
int v1, v2;
if (HIWORD(lParam))
{
// Vertical arrange
v1 = pitem1->pt.x / (int)LOWORD(lParam);
v2 = pitem2->pt.x / (int)LOWORD(lParam);
if (v1 > v2)
return 1;
else if (v1 < v2)
return -1;
else
{
int y1 = pitem1->pt.y;
int y2 = pitem2->pt.y;
if (y1 > y2)
return 1;
else if (y1 < y2)
return -1;
}
}
else
{
v1 = pitem1->pt.y / (int)lParam;
v2 = pitem2->pt.y / (int)lParam;
if (v1 > v2)
return 1;
else if (v1 < v2)
return -1;
else
{
int x1 = pitem1->pt.x;
int x2 = pitem2->pt.x;
if (x1 > x2)
return 1;
else if (x1 < x2)
return -1;
}
}
return 0;
}
void NEAR PASCAL _ListView_GetRectsFromItem(LV* plv, BOOL bSmallIconView,
LISTITEM FAR *pitem,
LPRECT prcIcon, LPRECT prcLabel, LPRECT prcBounds, LPRECT prcSelectBounds)
{
RECT rcIcon;
RECT rcLabel;
if (!prcIcon)
prcIcon = &rcIcon;
if (!prcLabel)
prcLabel = &rcLabel;
// Test for NULL item passed in
if (pitem)
{
// This routine is called during ListView_Recompute(), while
// plv->rcView.left may still be == RECOMPUTE. So, we can't
// test that to see if recomputation is needed.
if (pitem->pt.y == RECOMPUTE || pitem->cyMultiLabel == SRECOMPUTE)
ListView_Recompute(plv);
if (bSmallIconView)
ListView_SGetRects(plv, pitem, prcIcon, prcLabel, prcBounds);
else
ListView_IGetRects(plv, pitem, prcIcon, prcLabel, prcBounds);
if (prcBounds) {
UnionRect(prcBounds, prcIcon, prcLabel);
if (plv->himlState && (LV_StateImageValue(pitem))) {
prcBounds->left -= plv->cxState;
}
}
} else {
SetRectEmpty(prcIcon);
*prcLabel = *prcIcon;
if (prcBounds)
*prcBounds = *prcIcon;
}
if (prcSelectBounds)
UnionRect(prcSelectBounds, prcIcon, prcLabel);
}
void NEAR _ListView_InvalidateItemPtr(LV* plv, BOOL bSmallIcon, LISTITEM FAR *pitem, UINT fRedraw)
{
RECT rcBounds;
_ListView_GetRectsFromItem(plv, bSmallIcon, pitem, NULL, NULL, &rcBounds, NULL);
RedrawWindow(plv->hwnd, &rcBounds, NULL, fRedraw);
}
// return TRUE if things still overlap
// this only happens if we tried to unstack things, and there was NOSCROLL set and
// items tried to go off the deep end
BOOL NEAR PASCAL ListView_IUnstackOverlaps(LV* plv, HDPA hdpaSort, int iDirection)
{
BOOL fRet = FALSE;
int i;
int iCount;
BOOL bSmallIconView;
RECT rcItem, rcItem2, rcTemp;
int cxItem, cyItem;
LISTITEM FAR* pitem;
LISTITEM FAR* pitem2;
if (bSmallIconView = ListView_IsSmallView(plv))
{
cxItem = plv->cxItem;
cyItem = plv->cyItem;
}
else
{
cxItem = lv_cxIconSpacing;
cyItem = lv_cyIconSpacing;
}
iCount = ListView_Count(plv);
// finally, unstack any overlaps
for (i = 0 ; i < iCount ; i++) {
int j;
pitem = DPA_GetPtr(hdpaSort, i);
if (bSmallIconView) {
_ListView_GetRectsFromItem(plv, bSmallIconView, pitem, NULL, NULL, &rcItem, NULL);
}
// move all the items that overlap with us
for (j = i+1 ; j < iCount; j++) {
POINT ptOldPos;
pitem2 = DPA_GetPtr(hdpaSort, j);
ptOldPos = pitem2->pt;
if (bSmallIconView) {
// for small icons, we need to do an intersect rect
_ListView_GetRectsFromItem(plv, bSmallIconView, pitem2, NULL, NULL, &rcItem2, NULL);
if (IntersectRect(&rcTemp, &rcItem, &rcItem2)) {
// yes, it intersects. move it out
_ListView_InvalidateItemPtr(plv, bSmallIconView, pitem2, RDW_INVALIDATE| RDW_ERASE);
do {
pitem2->pt.x += (cxItem * iDirection);
} while (PtInRect(&rcItem, pitem2->pt));
} else {
// no more intersect!
break;
}
} else {
// for large icons, just find the ones that share the x,y;
if (pitem2->pt.x == pitem->pt.x && pitem2->pt.y == pitem->pt.y) {
_ListView_InvalidateItemPtr(plv, bSmallIconView, pitem2, RDW_INVALIDATE| RDW_ERASE);
pitem2->pt.x += (cxItem * iDirection);
} else {
// no more intersect!
break;
}
}
if (plv->style & LVS_NOSCROLL) {
if (pitem2->pt.x < 0 || pitem2->pt.y < 0 ||
pitem2->pt.x > (plv->sizeClient.cx - (cxItem/2))||
pitem2->pt.y > (plv->sizeClient.cy - (cyItem/2))) {
pitem2->pt = ptOldPos;
fRet = TRUE;
}
}
// invalidate the new position as well
_ListView_InvalidateItemPtr(plv, bSmallIconView, pitem2, RDW_INVALIDATE| RDW_ERASE);
}
}
return fRet;
}
BOOL NEAR PASCAL ListView_SnapToGrid(LV* plv, HDPA hdpaSort)
{
// this algorithm can't fit in the structure of the other
// arrange loop without becoming n^2 or worse.
// this algorithm is order n.
// iterate through and snap to the nearest grid.
// iterate through and push aside overlaps.
int i;
int iCount;
LPARAM xySpacing;
int x,y;
LISTITEM FAR* pitem;
BOOL bSmallIconView;
int cxItem, cyItem;
if (bSmallIconView = ListView_IsSmallView(plv))
{
cxItem = plv->cxItem;
cyItem = plv->cyItem;
}
else
{
cxItem = lv_cxIconSpacing;
cyItem = lv_cyIconSpacing;
}
iCount = ListView_Count(plv);
// first snap to nearest grid
for (i = 0; i < iCount; i++) {
pitem = DPA_GetPtr(hdpaSort, i);
x = pitem->pt.x;
y = pitem->pt.y;
if (!bSmallIconView) {
x -= g_cxIconOffset;
y -= g_cyIconOffset;
}
NearestSlot(&x,&y, cxItem, cyItem);
if (!bSmallIconView) {
x += g_cxIconOffset;
y += g_cyIconOffset;
}
if (x != pitem->pt.x || y != pitem->pt.y) {
_ListView_InvalidateItemPtr(plv, bSmallIconView, pitem, RDW_INVALIDATE| RDW_ERASE);
if (plv->style & LVS_NOSCROLL) {
// if it's marked noscroll, make sure it's still on the client region
while (x >= (plv->sizeClient.cx - (cxItem/2)))
x -= cxItem;
while (x < 0)
x += cxItem;
while (y >= (plv->sizeClient.cy - (cyItem/2)))
y -= cyItem;
while (y < 0)
y += cyItem;
}
pitem->pt.x = x;
pitem->pt.y = y;
_ListView_InvalidateItemPtr(plv, bSmallIconView, pitem, RDW_INVALIDATE| RDW_ERASE);
}
}
// now resort the dpa
switch (plv->style & LVS_ALIGNMASK)
{
case LVS_ALIGNLEFT:
case LVS_ALIGNRIGHT:
xySpacing = MAKELONG(bSmallIconView ? plv->cxItem : lv_cxIconSpacing, TRUE);
break;
default:
xySpacing = MAKELONG(bSmallIconView ? plv->cyItem : lv_cyIconSpacing, FALSE);
}
if (!DPA_Sort(hdpaSort, ArrangeIconCompare, xySpacing))
return FALSE;
// go in one direction, if there are still overlaps, go in the other
// direction as well
if (ListView_IUnstackOverlaps(plv, hdpaSort, 1))
ListView_IUnstackOverlaps(plv, hdpaSort, -1);
return FALSE;
}
BOOL NEAR ListView_OnArrange(LV* plv, UINT style)
{
BOOL bSmallIconView;
LPARAM xySpacing;
HDPA hdpaSort;
bSmallIconView = ListView_IsSmallView(plv);
if (!bSmallIconView && !ListView_IsIconView(plv)) {
return FALSE;
}
// Make sure our items have positions and their text rectangles
// caluculated
if (plv->rcView.left == RECOMPUTE)
ListView_Recompute(plv);
// we clone plv->hdpa so we don't blow away indices that
// apps have saved away.
// we sort here to make the nested for loop below more bearable.
hdpaSort = DPA_Clone(plv->hdpa, NULL);
if (!hdpaSort)
return FALSE;
switch (plv->style & LVS_ALIGNMASK)
{
case LVS_ALIGNLEFT:
case LVS_ALIGNRIGHT:
xySpacing = MAKELONG(bSmallIconView ? plv->cxItem : lv_cxIconSpacing, TRUE);
break;
default:
xySpacing = MAKELONG(bSmallIconView ? plv->cyItem : lv_cyIconSpacing, FALSE);
}
if (!DPA_Sort(hdpaSort, ArrangeIconCompare, xySpacing))
return FALSE;
ListView_CommonArrange(plv, style, hdpaSort);
DPA_Destroy(hdpaSort);
}
// this arranges the icon given a sorted hdpa.
BOOL NEAR ListView_CommonArrange(LV* plv, UINT style, HDPA hdpaSort)
{
int iSlot;
int iItem;
int cSlots;
BOOL fItemMoved;
RECT rcLastItem;
RECT rcSlot;
RECT rcT;
BOOL bSmallIconView;
int xMin = 0;
bSmallIconView = ListView_IsSmallView(plv);
// REVIEW, this causes a repaint if we are scrollled
// we can probably avoid this some how
fItemMoved = (plv->ptOrigin.x != 0) || (plv->ptOrigin.y != 0);
plv->ptOrigin.x = 0;
plv->ptOrigin.y = 0;
if (style == LVA_SNAPTOGRID) {
fItemMoved |= ListView_SnapToGrid(plv, hdpaSort);
} else {
cSlots = ListView_GetSlotCount(plv, TRUE);
SetRectEmpty(&rcLastItem);
// manipulate only the sorted version of the item list below!
iSlot = 0;
for (iItem = 0; iItem < ListView_Count(plv); iItem++)
{
LISTITEM FAR* pitem = DPA_GetPtr(hdpaSort, iItem);
if (bSmallIconView)
{
// BUGBUG:: Only check for Small view... See if this gets the
// results people expect?
for ( ; ; )
{
_CalcSlotRect(plv, iSlot, cSlots, FALSE, &rcSlot);
if (!IntersectRect(&rcT, &rcSlot, &rcLastItem))
break;
iSlot++;
}
}
fItemMoved |= ListView_SetIconPos(plv, pitem, iSlot++, cSlots);
// do this instead of ListView_GetRects() because we need
// to use the pitem from the sorted hdpa, not the ones in *plv
_ListView_GetRectsFromItem(plv, bSmallIconView, pitem, NULL, NULL, &rcLastItem, NULL);
// Keep track of the minimum x as we don't want negative values
// when we finish.
if (rcLastItem.left < xMin)
xMin = rcLastItem.left;
}
// See if we need to scroll the items over to make sure that all of the
// no items are hanging off the left hand side.
if (xMin < 0)
{
for (iItem = 0; iItem < ListView_Count(plv); iItem++)
{
LISTITEM FAR* pitem = ListView_FastGetItemPtr(plv, iItem);
pitem->pt.x -= xMin; // scroll them over
}
plv->rcView.left = RECOMPUTE; // need to recompute.
fItemMoved = TRUE;
}
}
// We might as well invalidate the entire window to make sure...
if (fItemMoved) {
if (ListView_RedrawEnabled(plv))
RedrawWindow(plv->hwnd, NULL, NULL, RDW_INVALIDATE | RDW_ERASE);
else {
ListView_DeleteHrgnInval(plv);
plv->hrgnInval = (HRGN)ENTIRE_REGION;
plv->flags |= LVF_ERASE;
}
// ensure important items are visible
iItem = (plv->iFocus >= 0) ? plv->iFocus : ListView_OnGetNextItem(plv, -1, LVNI_SELECTED);
if (iItem >= 0)
ListView_OnEnsureVisible(plv, iItem, FALSE);
if (ListView_RedrawEnabled(plv))
ListView_UpdateScrollBars(plv);
}
return TRUE;
}
void NEAR ListView_IUpdateScrollBars(LV* plv)
{
RECT rcClient;
RECT rcView;
DWORD style;
DWORD styleOld;
SCROLLINFO si;
styleOld = GetWindowStyle(plv->hwnd);
style = ListView_GetClientRect(plv, &rcClient, TRUE, &rcView);
//DebugMsg(DM_TRACE, "ListView_GetClientRect %x %x %x %x", rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
//DebugMsg(DM_TRACE, "ListView_GetViewRect2 %x %x %x %x", rcView.left, rcView.top, rcView.right, rcView.bottom);
//DebugMsg(DM_TRACE, "rcView %x %x %x %x", plv->rcView.left, plv->rcView.top, plv->rcView.right, plv->rcView.bottom);
//DebugMsg(DM_TRACE, "Origin %x %x", plv->ptOrigin.x, plv->ptOrigin.y);
si.cbSize = sizeof(SCROLLINFO);
if (style & WS_HSCROLL)
{
si.fMask = SIF_PAGE | SIF_RANGE | SIF_POS;
si.nMin = 0;
si.nMax = rcView.right - rcView.left - 1;
//DebugMsg(DM_TRACE, "si.nMax rcView.right - rcView.left - 1 %x", si.nMax);
si.nPage = min(rcClient.right, rcView.right) - rcClient.left;
//DebugMsg(DM_TRACE, "si.nPage %x", si.nPage);
si.nPos = 0;
if (rcView.left < rcClient.left)
si.nPos = rcClient.left - rcView.left;
//DebugMsg(DM_TRACE, "si.nPos %x", si.nPos);
#ifdef IEWIN31_25
plv->cxScrollPage = (int)si.nPage;
SetScrollRange( plv->hwnd, SB_HORZ, (int) si.nMin,
max( (int)(si.nMax-si.nPage+1), 0 ), FALSE );
SetScrollPos( plv->hwnd, SB_HORZ, (int) si.nPos, TRUE );
#else
SetScrollInfo(plv->hwnd, SB_HORZ, &si, TRUE);
#endif //IEWIN31_25
}
else if (styleOld & WS_HSCROLL)
{
SetScrollRange(plv->hwnd, SB_HORZ, 0, 0, TRUE);
}
if (style & WS_VSCROLL)
{
si.fMask = SIF_PAGE | SIF_RANGE | SIF_POS;
si.nMin = 0;
si.nMax = rcView.bottom - rcView.top - 1;
si.nPage = min(rcClient.bottom, rcView.bottom) - rcClient.top;
si.nPos = 0;
if (rcView.top < rcClient.top)
si.nPos = rcClient.top - rcView.top;
#ifdef IEWIN31_25
plv->cyScrollPage = (int)si.nPage;
SetScrollRange( plv->hwnd, SB_VERT, (int) si.nMin,
max( (int)(si.nMax-si.nPage+1), 0 ), FALSE );
SetScrollPos( plv->hwnd, SB_VERT, (int) si.nPos, TRUE );
#else
SetScrollInfo(plv->hwnd, SB_VERT, &si, TRUE);
#endif //IEWIN31_25
}
else if (styleOld & WS_VSCROLL)
{
SetScrollRange(plv->hwnd, SB_VERT, 0, 0, TRUE);
}
}
void FAR PASCAL ListView_ComOnScroll(LV* plv, UINT code, int posNew, int sb,
int cLine, int cPage,
SCROLLPROC lpfnScroll2)
{
int pos;
SCROLLINFO si;
BOOL fVert = (sb == SB_VERT);
#ifdef IEWIN31_25
{
int n1, n2;
GetScrollRange( plv->hwnd, sb, &n1, &n2 );
si.nMin = n1;
si.nMax = n2;
si.nPos = GetScrollPos( plv->hwnd, sb );
si.nPage = fVert ? plv->cyScrollPage : plv->cxScrollPage;
}
#else
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_PAGE | SIF_RANGE | SIF_POS;
if (!GetScrollInfo(plv->hwnd, sb, &si)) {
return;
}
#endif //IEWIN31_25
if (cPage != -1)
si.nPage = cPage;
si.nMax -= (si.nPage - 1);
if (si.nMax < si.nMin)
si.nMax = si.nMin;
pos = (int)si.nPos; // current position
switch (code)
{
case SB_LEFT:
si.nPos = si.nMin;
break;
case SB_RIGHT:
si.nPos = si.nMax;
break;
case SB_PAGELEFT:
si.nPos -= si.nPage;
break;
case SB_LINELEFT:
si.nPos -= cLine;
break;
case SB_PAGERIGHT:
si.nPos += si.nPage;
break;
case SB_LINERIGHT:
si.nPos += cLine;
break;
case SB_THUMBTRACK:
si.nPos = posNew;
break;
case SB_ENDSCROLL:
// When scroll bar tracking is over, ensure scroll bars
// are properly updated...
ListView_UpdateScrollBars(plv);
return;
default:
return;
}
si.fMask = SIF_POS;
#ifdef IEWIN31_25
SetScrollPos( plv->hwnd, sb, (int) si.nPos, TRUE );
si.nPos = GetScrollPos( plv->hwnd, sb );
#else
si.nPos = SetScrollInfo(plv->hwnd, sb, &si, TRUE);
#endif
if (pos != si.nPos)
{
int delta = (int)si.nPos - pos;
int dx = 0, dy = 0;
if (fVert)
dy = delta;
else
dx = delta;
lpfnScroll2(plv, dx, dy);
UpdateWindow(plv->hwnd);
}
}
void FAR PASCAL ListView_IScroll2(LV* plv, int dx, int dy)
{
if (dx | dy)
{
plv->ptOrigin.x += dx;
plv->ptOrigin.y += dy;
ScrollWindowEx(plv->hwnd, -dx, -dy, NULL, NULL, NULL, NULL,
SW_INVALIDATE | SW_ERASE);
}
}
void NEAR ListView_IOnScroll(LV* plv, UINT code, int posNew, int sb)
{
int cLine;
if (sb == SB_VERT)
{
cLine = lv_cyIconSpacing / 2;
}
else
{
cLine = lv_cxIconSpacing / 2;
}
ListView_ComOnScroll(plv, code, posNew, sb,
cLine, -1,
ListView_IScroll2);
}
// NOTE: there is very similar code in the treeview
// Totally disgusting hack in order to catch VK_RETURN
// before edit control gets it.
LRESULT CALLBACK ListView_EditWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
LV* plv = ListView_GetPtr(GetParent(hwnd));
Assert(plv);
#ifdef FE_IME
if ( LOWORD(GetKeyboardLayout(0L)) == 0x0411 )
{
// The following code adds IME awareness to the
// listview's label editing. Currently just for Japanese.
DWORD dwGcs;
if (msg==WM_SIZE)
{
// If it's given the size, tell it to an IME.
ListView_SizeIME(hwnd);
}
else if (msg == EM_SETLIMITTEXT )
{
if (wParam < 13)
plv->flags |= LVF_DONTDRAWCOMP;
else
plv->flags &= ~LVF_DONTDRAWCOMP;
}
// Give up to draw IME composition by ourselves in case
// we're working on SFN. Win95d-5709
else if (!(plv->flags & LVF_DONTDRAWCOMP ))
{
switch (msg)
{
case WM_IME_STARTCOMPOSITION:
case WM_IME_ENDCOMPOSITION:
return 0L;
case WM_IME_COMPOSITION:
// If lParam has no data available bit, it implies
// canceling composition.
// ListView_InsertComposition() tries to get composition
// string w/ GCS_COMPSTR then remove it from edit control if
// nothing is available.
if ( !lParam )
dwGcs = GCS_COMPSTR;
else
dwGcs = lParam;
ListView_InsertComposition(hwnd, wParam, dwGcs, plv);
ListView_PaintComposition(hwnd,plv);
return 0L;
case WM_IME_SETCONTEXT:
// We draw composition string.
lParam &= ~ISC_SHOWUICOMPOSITIONWINDOW;
break;
default:
// the other messages should simply be processed
// in this subclass procedure.
break;
}
}
}
#endif
switch (msg)
{
case WM_SETTEXT:
SetWindowID(hwnd, 1);
break;
case WM_KEYDOWN:
switch (wParam)
{
case VK_RETURN:
ListView_DismissEdit(plv, FALSE);
return 0L;
case VK_ESCAPE:
ListView_DismissEdit(plv, TRUE);
return 0L;
}
break;
case WM_CHAR:
switch (wParam)
{
case VK_RETURN:
// Eat the character, so edit control wont beep!
return 0L;
}
break;
case WM_GETDLGCODE:
return DLGC_WANTALLKEYS; /* editing name, no dialog handling right now */
}
return CallWindowProc(plv->pfnEditWndProc, hwnd, msg, wParam, lParam);
}
// BUGBUG: very similar routine in treeview
void NEAR ListView_SetEditSize(LV* plv)
{
RECT rcLabel;
LISTITEM FAR* pitem;
pitem = ListView_GetItemPtr(plv, plv->iEdit);
if (!pitem)
{
ListView_DismissEdit(plv, TRUE); // cancel edits
return;
}
ListView_GetRects(plv, plv->iEdit, NULL, &rcLabel, NULL, NULL);
// OffsetRect(&rc, rcLabel.left + g_cxLabelMargin + g_cxBorder,
// (rcLabel.bottom + rcLabel.top - rc.bottom) / 2 + g_cyBorder);
// OffsetRect(&rc, rcLabel.left + g_cxLabelMargin , rcLabel.top);
// get the text bounding rect
if (ListView_IsIconView(plv))
{
// We should not adjust y-positoin in case of the icon view.
InflateRect(&rcLabel, -g_cxLabelMargin, -g_cyBorder);
}
else
{
// Special case for single-line & centered
InflateRect(&rcLabel, -g_cxLabelMargin - g_cxBorder, (-(rcLabel.bottom - rcLabel.top - plv->cyLabelChar) / 2) - g_cyBorder);
}
SetEditInPlaceSize(plv->hwndEdit, &rcLabel, plv->hfontLabel, ListView_IsIconView(plv) && !(plv->style & LVS_NOLABELWRAP));
}
// to avoid eating too much stack
void NEAR ListView_DoOnEditLabel(LV *plv, int i, LPSTR pszInitial)
{
char szLabel[CCHLABELMAX];
LV_ITEM item;
item.mask = LVIF_TEXT;
item.iItem = i;
item.iSubItem = 0;
item.pszText = szLabel;
item.cchTextMax = sizeof(szLabel);
ListView_OnGetItem(plv, &item);
if (!item.pszText)
return;
// Make sure the edited item has the focus.
if (plv->iFocus != i)
ListView_SetFocusSel(plv, i, TRUE, TRUE, FALSE);
// Make sure the item is fully visible
ListView_OnEnsureVisible(plv, i, FALSE); // fPartialOK == FALSE
plv->hwndEdit = CreateEditInPlaceWindow(plv->hwnd,
pszInitial? pszInitial : item.pszText, sizeof(szLabel),
ListView_IsIconView(plv) ?
(WS_BORDER | WS_CLIPSIBLINGS | WS_CHILD | ES_CENTER | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL) :
(WS_BORDER | WS_CLIPSIBLINGS | WS_CHILD | ES_LEFT | ES_AUTOHSCROLL), plv->hfontLabel);
if (plv->hwndEdit)
{
LISTITEM FAR* pitem;
LV_DISPINFO nm;
// We create the edit window but have not shown it. Ask the owner
// if they are interested or not.
// If we passed in initial text set the ID to be dirty...
if (pszInitial)
SetWindowID(plv->hwndEdit, 1);
if (!(pitem = ListView_GetItemPtr(plv, i)))
{
DestroyWindow(plv->hwndEdit);
plv->hwndEdit = NULL;
return;
}
nm.item.iItem = i;
nm.item.iSubItem = 0;
nm.item.lParam = pitem->lParam;
// if they have LVS_EDITLABELS but return non-FALSE here, stop!
if ((BOOL)SendNotify(plv->hwndParent, plv->hwnd, LVN_BEGINLABELEDIT, &nm.hdr))
{
DestroyWindow(plv->hwndEdit);
plv->hwndEdit = NULL;
}
else
{
// Ok To continue - so Show the window and set focus to it.
SetFocus(plv->hwndEdit);
ShowWindow(plv->hwndEdit, SW_SHOW);
}
}
}
void FAR PASCAL RescrollEditWindow(HWND hwndEdit)
{
Edit_SetSel(hwndEdit, 32000, 32000); // move to the end
Edit_SetSel(hwndEdit, 0, 32000); // select all text
}
// BUGBUG: very similar code in treeview.c
HWND NEAR ListView_OnEditLabel(LV* plv, int i, LPSTR pszInitialText)
{
// this eats stack
ListView_DismissEdit(plv, FALSE);
if (!(plv->style & LVS_EDITLABELS) || (GetFocus() != plv->hwnd) ||
(i == -1))
return(NULL); // Does not support this.
ListView_DoOnEditLabel(plv, i, pszInitialText);
if (plv->hwndEdit) {
plv->iEdit = i;
plv->pfnEditWndProc = SubclassWindow(plv->hwndEdit, ListView_EditWndProc);
#ifdef FE_IME
if (SendMessage(plv->hwndEdit, EM_GETLIMITTEXT, (WPARAM)0, (LPARAM)0)<13)
{
plv->flags |= LVF_DONTDRAWCOMP;
}
#endif
ListView_SetEditSize(plv);
RescrollEditWindow(plv->hwndEdit);
}
return plv->hwndEdit;
}
// BUGBUG: very similar code in treeview.c
BOOL NEAR ListView_DismissEdit(LV* plv, BOOL fCancel)
{
LISTITEM FAR* pitem;
BOOL fOkToContinue = TRUE;
HWND hwndEdit = plv->hwndEdit;
HWND hwnd = plv->hwnd;
int iEdit;
#ifdef FE_IME
HIMC himc;
#endif
if (plv->fNoDismissEdit)
return FALSE;
if (!hwndEdit) {
// Also make sure there are no pending edits...
ListView_CancelPendingEdit(plv);
return TRUE; // It is OK to process as normal...
}
// If the window is not visible, we are probably in the process
// of being destroyed, so assume that we are being destroyed
if (!IsWindowVisible(plv->hwnd))
fCancel = TRUE;
// We are using the Window ID of the control as a BOOL to
// state if it is dirty or not.
switch (GetWindowID(hwndEdit)) {
case 0:
// The edit control is not dirty so act like cancel.
fCancel = TRUE;
// Fall through to set window so we will not recurse!
case 1:
// The edit control is dirty so continue.
SetWindowID(hwndEdit, 2); // Don't recurse
break;
case 2:
// We are in the process of processing an update now, bail out
return TRUE;
}
// BUGBUG: this will fail if the program deleted the items out
// from underneath us (while we are waiting for the edit timer).
// make delete item invalidate our edit item
// We uncouple the edit control and hwnd out from under this as
// to allow code that process the LVN_ENDLABELEDIT to reenter
// editing mode if an error happens.
iEdit = plv->iEdit;
pitem = ListView_GetItemPtr(plv, iEdit);
Assert(pitem);
if (pitem != NULL)
{
LV_DISPINFO nm;
char szLabel[CCHLABELMAX];
nm.item.iItem = iEdit;
nm.item.lParam = pitem->lParam;
nm.item.iSubItem = 0;
nm.item.cchTextMax = 0;
nm.item.mask = 0;
if (fCancel)
nm.item.pszText = NULL;
else {
Edit_GetText(hwndEdit, szLabel, sizeof(szLabel));
nm.item.pszText = szLabel;
}
// Notify the parent that we the label editing has completed.
// We will use the LV_DISPINFO structure to return the new
// label in. The parent still has the old text available by
// calling the GetItemText function.
fOkToContinue = (BOOL)SendNotify(plv->hwndParent, plv->hwnd, LVN_ENDLABELEDIT, &nm.hdr);
if (!IsWindow(hwnd)) {
return FALSE;
}
if (fOkToContinue && !fCancel)
{
// If the item has the text set as CALLBACK, we will let the
// ower know that they are supposed to set the item text in
// their own data structures. Else we will simply update the
// text in the actual view.
if (pitem->pszText != LPSTR_TEXTCALLBACK)
{
// Set the item text (everything's set up in nm.item)
nm.item.mask = LVIF_TEXT;
ListView_OnSetItem(plv, &nm.item);
}
else
{
SendNotify(plv->hwndParent, plv->hwnd, LVN_SETDISPINFO, &nm.hdr);
// Also we will assume that our cached size is invalid...
plv->rcView.left = RECOMPUTE;
pitem->cyMultiLabel = pitem->cxSingleLabel = pitem->cxMultiLabel = SRECOMPUTE;
}
}
#ifdef FE_IME
if (LOWORD(GetKeyboardLayout(0L)) == 0x0411 && (himc = ImmGetContext(hwndEdit)))
{
ImmNotifyIME(himc, NI_COMPOSITIONSTR, CPS_COMPLETE, 0L);
ImmReleaseContext(hwndEdit, himc);
}
#endif
// redraw
ListView_InvalidateItem(plv, iEdit, FALSE, RDW_INVALIDATE | RDW_ERASE);
}
// If the hwnedit is still us clear out the variables
if (hwndEdit == plv->hwndEdit)
{
plv->iEdit = -1;
plv->hwndEdit = NULL; // avoid being reentered
}
DestroyWindow(hwndEdit);
return fOkToContinue;
}
// This function will scall the icon positions that are stored in the
// item structures between large and small icon view.
void NEAR ListView_ScaleIconPositions(LV* plv, BOOL fSmallIconView)
{
int cxItem, cyItem;
HWND hwnd;
int i;
cxItem = plv->cxItem;
cyItem = plv->cyItem;
hwnd = plv->hwnd;
if (fSmallIconView)
{
if (plv->flags & LVF_ICONPOSSML)
return; // Already done
}
else
{
if ((plv->flags & LVF_ICONPOSSML) == 0)
return; // dito
}
// Last but not least update our bit!
plv->flags ^= LVF_ICONPOSSML;
// We will now loop through all of the items and update their coordinats
// We will update th position directly into the view instead of calling
// SetItemPosition as to not do 5000 invalidates and messages...
for (i = 0; i < ListView_Count(plv); i++)
{
LISTITEM FAR* pitem = ListView_FastGetItemPtr(plv, i);
if (fSmallIconView)
{
if (pitem->pt.y != RECOMPUTE) {
pitem->pt.x = MulDiv(pitem->pt.x - g_cxIconOffset, cxItem, lv_cxIconSpacing);
pitem->pt.y = MulDiv(pitem->pt.y - g_cyIconOffset, cyItem, lv_cyIconSpacing);
}
}
else
{
pitem->pt.x = MulDiv(pitem->pt.x, lv_cxIconSpacing, cxItem) + g_cxIconOffset;
pitem->pt.y = MulDiv(pitem->pt.y, lv_cyIconSpacing, cyItem) + g_cyIconOffset;
}
}
if (plv->style & LVS_AUTOARRANGE)
{
// If autoarrange is turned on, the arrange function will do
// everything that is needed.
ListView_OnArrange(plv, LVA_DEFAULT);
return;
}
plv->rcView.left = RECOMPUTE;
// Also scale the origin
if (fSmallIconView)
{
plv->ptOrigin.x = MulDiv(plv->ptOrigin.x, cxItem, lv_cxIconSpacing);
plv->ptOrigin.y = MulDiv(plv->ptOrigin.y, cyItem, lv_cyIconSpacing);
}
else
{
plv->ptOrigin.x = MulDiv(plv->ptOrigin.x, lv_cxIconSpacing, cxItem);
plv->ptOrigin.y = MulDiv(plv->ptOrigin.y, lv_cyIconSpacing, cyItem);
}
// Make sure it fully redraws correctly
RedrawWindow(plv->hwnd, NULL, NULL, RDW_INVALIDATE | RDW_ERASE);
}
HWND FAR PASCAL CreateEditInPlaceWindow(HWND hwnd, LPCSTR lpText, int cbText, LONG style, HFONT hFont)
{
HWND hwndEdit;
hwndEdit = CreateWindowEx(0 /* WS_EX_CLIENTEDGE */, "EDIT", lpText, style,
0, 0, 0, 0, hwnd, NULL, HINST_THISDLL, NULL);
if (hwndEdit) {
Edit_LimitText(hwndEdit, cbText);
Edit_SetSel(hwndEdit, 0, 0); // move to the beginning
FORWARD_WM_SETFONT(hwndEdit, hFont, FALSE, SendMessage);
}
return hwndEdit;
}
// BUGBUG: very similar routine in treeview
// in:
// hwndEdit edit control to position in client coords of parent window
// prc bonding rect of the text, used to position everthing
// hFont font being used
// fWrap if this is a wrapped type edit
// Notes:
// The top-left corner of the bouding rectangle must be the position
// the client uses to draw text. We adjust the edit field rectangle
// appropriately.
void FAR PASCAL SetEditInPlaceSize(HWND hwndEdit, RECT FAR *prc, HFONT hFont, BOOL fWrap)
{
RECT rc, rcClient, rcFormat;
char szLabel[CCHLABELMAX + 1];
int cchLabel, cxIconTextWidth;
HDC hdc;
HWND hwndParent = GetParent(hwndEdit);
#ifdef DBCS
short wRightMgn;
#endif
cchLabel = Edit_GetText(hwndEdit, szLabel, sizeof(szLabel));
if (szLabel[0] == 0)
{
lstrcpy(szLabel, c_szSpace);
cchLabel = 1;
}
hdc = GetDC(hwndParent);
#ifdef DEBUG
//DrawFocusRect(hdc, prc); // this is the rect they are passing in
#endif
SelectFont(hdc, hFont);
cxIconTextWidth = g_cxIconSpacing - g_cxLabelMargin * 2;
rc.left = rc.top = rc.bottom = 0;
rc.right = cxIconTextWidth; // for DT_LVWRAP
// REVIEW: we might want to include DT_EDITCONTROL in our DT_LVWRAP
// If the string is NULL display a rectangle that is visible.
DrawText(hdc, szLabel, cchLabel, &rc, fWrap ? (DT_LVWRAP | DT_CALCRECT) : (DT_LV | DT_CALCRECT));
// Minimum text box size is 1/4 icon spacing size
if (rc.right < g_cxIconSpacing / 4)
rc.right = g_cxIconSpacing / 4;
// position the text rect based on the text rect passed in
// if wrapping, center the edit control around the text mid point
OffsetRect(&rc,
fWrap ? prc->left + ((prc->right - prc->left) - (rc.right - rc.left)) / 2 : prc->left,
fWrap ? prc->top : prc->top + ((prc->bottom - prc->top) - (rc.bottom - rc.top)) / 2 );
// give a little space to ease the editing of this thing
if (!fWrap)
rc.right += g_cxLabelMargin * 4;
#ifdef DEBUG
//DrawFocusRect(hdc, &rc);
#endif
ReleaseDC(hwndParent, hdc);
// #5688: We need to make it sure that the whole edit window is
// always visible. We should not extend it to the outside of
// the parent window.
{
BOOL fSuccess;
GetClientRect(hwndParent, &rcClient);
fSuccess = IntersectRect(&rc, &rc, &rcClient);
Assert(fSuccess || IsRectEmpty(&rcClient));
}
// Inflate it after the clipping, because it's ok to hide border.
SendMessage(hwndEdit, EM_GETRECT, 0, (LPARAM)(LPRECT)&rcFormat);
// account for the border style, REVIEW: there might be a better way!
#ifdef DBCS
// some FE fonts have suprisingly big negative C width
#ifndef IEWIN31_25
wRightMgn=HIWORD(SendMessage(hwndEdit, EM_GETMARGINS, 0, 0));
#else
wRightMgn=0;
#endif
InflateRect(&rc, rcFormat.left + wRightMgn + g_cxEdge, rcFormat.top + g_cyEdge);
#else
InflateRect(&rc, rcFormat.left + g_cxEdge, rcFormat.top + g_cyEdge);
#endif
rc.right += g_cyEdge; // try to leave a little more for dual blanks
HideCaret(hwndEdit);
SetWindowPos(hwndEdit, NULL, rc.left, rc.top,
rc.right - rc.left, rc.bottom - rc.top, SWP_NOZORDER | SWP_NOACTIVATE);
ShowCaret(hwndEdit);
}
UINT NEAR PASCAL ListView_DrawImage(LV* plv, LV_ITEM FAR* pitem, HDC hdc, int x, int y, UINT fDraw)
{
UINT fText = SHDT_DESELECTED;
UINT fImage = ILD_NORMAL;
COLORREF clr;
HIMAGELIST himl;
fImage = (pitem->state & LVIS_OVERLAYMASK);
fText = SHDT_DESELECTED;
himl = ListView_IsIconView(plv) ? plv->himl : plv->himlSmall;
// the item can have one of 4 states, for 3 looks:
// normal simple drawing
// selected, no focus light image highlight, no text hi
// selected w/ focus highlight image & text
// drop highlighting highlight image & text
if ((pitem->state & LVIS_DROPHILITED) ||
((fDraw & LVDI_SELECTED) && (pitem->state & LVIS_SELECTED)))
{
fText = SHDT_SELECTED;
fImage |= ILD_BLEND50;
clr = CLR_HILIGHT;
}
if (pitem->state & LVIS_CUT)
{
fImage |= ILD_BLEND50;
clr = plv->clrBk;
}
#if 0 // dont do a selected but dont have the focus vis.
else if (item.state & LVIS_SELECTED)
{
fImage |= ILD_BLEND25;
clr = CLR_HILIGHT;
}
#endif
if (!(fDraw & LVDI_NOIMAGE))
{
if (himl) {
ImageList_DrawEx(himl, pitem->iImage, hdc, x, y, 0, 0, plv->clrBk, clr, fImage);
}
if (plv->himlState) {
if (LV_StateImageValue(pitem)) {
int iState = LV_StateImageIndex(pitem);
int dyImage =
(himl) ?
( (ListView_IsIconView(plv) ? plv->cyIcon : plv->cySmIcon) - plv->cyState)
: 0;
ImageList_Draw(plv->himlState, iState, hdc, x-plv->cxState,
y + dyImage,
ILD_NORMAL);
}
}
}
return fText;
}
#ifdef FE_IME
void NEAR PASCAL ListView_SizeIME(HWND hwnd)
{
HIMC himc;
#ifdef _WIN32
CANDIDATEFORM candf;
#else
CANDIDATEFORM16 candf;
#endif
RECT rc;
// If this subclass procedure is being called with WM_SIZE,
// This routine sets the rectangle to an IME.
GetClientRect(hwnd, &rc);
// Candidate stuff
candf.dwIndex = 0; // Bogus assumption for Japanese IME.
candf.dwStyle = CFS_EXCLUDE;
candf.ptCurrentPos.x = rc.left;
candf.ptCurrentPos.y = rc.bottom;
candf.rcArea = rc;
if (himc=ImmGetContext(hwnd))
{
ImmSetCandidateWindow(himc, &candf);
ImmReleaseContext(hwnd, himc);
}
}
LPSTR NEAR PASCAL DoDBCSBoundary(LPSTR lpsz, int FAR *lpcchMax)
{
int i = 0;
while (i < *lpcchMax && *lpsz)
{
i++;
if (IsDBCSLeadByte(*lpsz))
{
if (i >= *lpcchMax)
{
--i; // Wrap up without the last leadbyte.
break;
}
i++;
lpsz+= 2;
}
else
lpsz++;
}
*lpcchMax = i;
return lpsz;
}
void NEAR PASCAL DrawCompositionLine(HWND hwnd, HDC hdc, HFONT hfont, LPCSTR lpszComp, LPCSTR lpszAttr, int ichCompStart, int ichCompEnd, int ichStart)
{
PSTR pszCompStr;
int ichSt,ichEnd;
DWORD dwPos;
BYTE bAttr;
HFONT hfontOld;
COLORREF crFore = GetSysColor(COLOR_WINDOWTEXT);
COLORREF crBack = GetSysColor(COLOR_WINDOW);
COLORREF crForeH = GetSysColor(COLOR_HIGHLIGHTTEXT);
COLORREF crBackH = GetSysColor(COLOR_HIGHLIGHT);
int fnPen;
HPEN hPen;
COLORREF crDrawText;
COLORREF crDrawBack;
COLORREF crOldText;
COLORREF crOldBk;
while (ichCompStart < ichCompEnd)
{
// Get the fragment to draw
// ichCompStart,ichCompEnd -- index at Edit Control
// ichSt,ichEnd -- index at lpszComp
ichEnd = ichSt = ichCompStart - ichStart;
bAttr = lpszAttr[ichSt];
while (ichEnd < ichCompEnd - ichStart)
{
if (bAttr == lpszAttr[ichEnd])
ichEnd++;
else
break;
}
pszCompStr = (PSTR)LocalAlloc(LPTR, ichEnd - ichSt + 1 + 1 ); // 1 for NULL.
if (pszCompStr)
{
lstrcpyn(pszCompStr, &lpszComp[ichSt], ichEnd-ichSt+1);
pszCompStr[ichEnd-ichSt] = '\0';
}
// Attribute stuff
switch (bAttr)
{
case ATTR_INPUT:
fnPen = PS_DOT;
crDrawText = crFore;
crDrawBack = crBack;
break;
case ATTR_TARGET_CONVERTED:
case ATTR_TARGET_NOTCONVERTED:
fnPen = PS_DOT;
crDrawText = crForeH;
crDrawBack = crBackH;
break;
case ATTR_CONVERTED:
fnPen = PS_SOLID;
crDrawText = crFore;
crDrawBack = crBack;
break;
}
crOldText = SetTextColor(hdc, crDrawText);
crOldBk = SetBkColor(hdc, crDrawBack);
hfontOld= SelectObject(hdc, hfont);
// Get the start position of composition
dwPos = SendMessage(hwnd, EM_POSFROMCHAR, ichCompStart, 0);
// Draw it.
TextOut(hdc, LOWORD(dwPos), HIWORD(dwPos), pszCompStr, ichEnd-ichSt);
// Underline
hPen = CreatePen(fnPen, 1, crDrawText);
if( hPen ) {
HPEN hpenOld = SelectObject( hdc, hPen );
int iOldBk = SetBkMode( hdc, TRANSPARENT );
SIZE size;
GetTextExtentPoint(hdc, pszCompStr, ichEnd-ichSt, &size);
MoveToEx( hdc, LOWORD(dwPos), size.cy + HIWORD(dwPos)-1, NULL);
LineTo( hdc, size.cx + LOWORD(dwPos), size.cy + HIWORD(dwPos)-1 );
SetBkMode( hdc, iOldBk );
if( hpenOld ) SelectObject( hdc, hpenOld );
DeleteObject( hPen );
}
if (hfontOld)
SelectObject(hdc, hfontOld);
SetTextColor(hdc, crOldText);
SetBkColor(hdc, crOldBk);
LocalFree((HLOCAL)pszCompStr);
//Next fragment
ichCompStart += ichEnd-ichSt;
}
}
void NEAR PASCAL ListView_InsertComposition(HWND hwnd, WPARAM wParam, LPARAM lParam, LV *plv)
{
char *pszCompStr;
int cchComp = 0;
int cchCompNew;
int cchMax;
int cchText;
DWORD dwSel;
HIMC himc = (HIMC)0;
// To prevent recursion..
if (plv->flags & LVF_INSERTINGCOMP)
{
return;
}
plv->flags |= LVF_INSERTINGCOMP;
// Don't want to redraw edit during inserting.
SendMessage(hwnd, WM_SETREDRAW, (WPARAM)FALSE, 0);
// If we have RESULT STR, put it to EC first.
if (himc = ImmGetContext(hwnd))
{
#ifdef WIN32
if (!(dwSel = (DWORD)GetProp(hwnd, szIMECompPos)))
dwSel = Edit_GetSel(hwnd);
// Becaues we don't setsel after inserting composition
// in win32 case.
Edit_SetSel(hwnd, LOWORD(dwSel), HIWORD(dwSel));
#endif
if (lParam&GCS_RESULTSTR)
{
pszCompStr = (PSTR)LocalAlloc(LPTR, 1 );
if(cchComp = (int)ImmGetCompositionString(himc, GCS_RESULTSTR, NULL, 0))
{
if(pszCompStr = (PSTR)LocalReAlloc(pszCompStr, cchComp+1,LMEM_MOVEABLE ))
{
ImmGetCompositionString(himc, GCS_RESULTSTR, pszCompStr, cchComp+1);
}
}
pszCompStr[cchComp] = '\0';
Edit_ReplaceSel(hwnd, pszCompStr);
LocalFree((HLOCAL)pszCompStr);
#ifdef WIN32
// There's no longer selection
RemoveProp(hwnd, szIMECompPos);
// Get current cursor pos so that the subsequent composition
// handling will do the right thing.
dwSel = Edit_GetSel(hwnd);
#endif
}
if (lParam & GCS_COMPSTR)
{
pszCompStr = (PSTR)LocalAlloc(LPTR, 1 );
if(cchComp = (int)ImmGetCompositionString(himc, GCS_COMPSTR, NULL, 0))
{
pszCompStr = (PSTR)LocalReAlloc(pszCompStr, cchComp+1,LMEM_MOVEABLE );
if (!pszCompStr)
goto ReleaseContext;
ImmGetCompositionString(himc, GCS_COMPSTR, pszCompStr, cchComp+1);
// Get position of the current selection
#ifndef WIN32
dwSel = Edit_GetSel(hwnd);
#endif
cchMax = (int)SendMessage(hwnd, EM_GETLIMITTEXT, 0, 0);
cchText = Edit_GetTextLength(hwnd);
// Cut the composition string if it exceeds limit.
cchCompNew = min(cchComp,
cchMax-(cchText-(HIWORD(dwSel)-LOWORD(dwSel))));
// wrap up the DBCS at the end of string
if (cchCompNew < cchComp)
{
DoDBCSBoundary((LPSTR)pszCompStr, (int FAR *)&cchCompNew);
pszCompStr[cchCompNew] = '\0';
// Reset composition string if we cut it.
ImmSetCompositionString(himc, SCS_SETSTR, pszCompStr, cchCompNew, NULL, 0);
cchComp = cchCompNew;
}
}
pszCompStr[cchComp] = '\0';
// Replace the current selection with composition string.
Edit_ReplaceSel(hwnd, pszCompStr);
LocalFree((HLOCAL)pszCompStr);
// Mark the composition string so that we can replace it again
// for the next time.
#ifdef WIN32
// Don't setsel to avoid flicking
if (cchComp)
{
dwSel = MAKELONG(LOWORD(dwSel),LOWORD(dwSel)+cchComp);
SetProp(hwnd, szIMECompPos, (HANDLE)dwSel);
}
else
RemoveProp(hwnd, szIMECompPos);
#else
// Still use SETSEL for 16bit.
if (cchComp)
Edit_SetSel(hwnd, LOWORD(dwSel), LOWORD(dwSel)+cchComp);
#endif
}
ReleaseContext:
ImmReleaseContext(hwnd, himc);
}
SendMessage(hwnd, WM_SETREDRAW, (WPARAM)TRUE, 0);
// We want to update the size of label edit just once at
// each WM_IME_COMPOSITION processing. ReplaceSel causes several EN_UPDATE
// and it causes ugly flicking too.
SetWindowID(plv->hwndEdit, 1);
ListView_SetEditSize(plv);
RedrawWindow(hwnd, NULL, NULL, RDW_INTERNALPAINT|RDW_INVALIDATE);
UpdateWindow(hwnd);
plv->flags &= ~LVF_INSERTINGCOMP;
}
void NEAR PASCAL ListView_PaintComposition(HWND hwnd, LV * plv)
{
char szCompStr[CCHLABELMAX + 1];
char szCompAttr[CCHLABELMAX + 1];
int cchLine, ichLineStart;
int cchComp = 0;
int nLine;
int ichCompStart, ichCompEnd;
DWORD dwSel;
int cchMax, cchText;
HIMC himc = (HIMC)0;
HDC hdc;
if (plv->flags & LVF_INSERTINGCOMP)
{
// This is the case that ImmSetCompositionString() generates
// WM_IME_COMPOSITION. We're not ready to paint composition here.
return;
}
if (himc = ImmGetContext(hwnd))
{
cchComp=(UINT)ImmGetCompositionString(himc, GCS_COMPSTR, szCompStr, sizeof(szCompStr));
ImmGetCompositionString(himc, GCS_COMPATTR, szCompAttr, sizeof(szCompStr));
ImmReleaseContext(hwnd, himc);
}
if (cchComp)
{
// Get the position of current selection
#ifdef WIN32
if (!(dwSel = (DWORD)GetProp(hwnd, szIMECompPos)))
dwSel = 0L;
#else
dwSel = Edit_GetSel(hwnd);
#endif
cchMax = (int)SendMessage(hwnd, EM_GETLIMITTEXT, 0, 0);
cchText = Edit_GetTextLength(hwnd);
cchComp = min(cchComp, cchMax-(cchText-(HIWORD(dwSel)-LOWORD(dwSel))));
DoDBCSBoundary((LPSTR)szCompStr, (int FAR *)&cchComp);
szCompStr[cchComp] = '\0';
// //
// Draw composition string over the sel string.//
// //
hdc = GetDC(hwnd);
ichCompStart = LOWORD(dwSel);
while (ichCompStart < (int)LOWORD(dwSel) + cchComp)
{
// Get line from each start pos.
nLine = Edit_LineFromChar(hwnd, ichCompStart);
ichLineStart = Edit_LineIndex(hwnd, nLine);
cchLine= Edit_LineLength(hwnd, ichLineStart);
// See if composition string is longer than this line.
if(ichLineStart+cchLine > (int)LOWORD(dwSel)+cchComp)
ichCompEnd = LOWORD(dwSel)+cchComp;
else
{
// Yes, the composition string is longer.
// Take the begining of the next line as next start.
if (ichLineStart+cchLine > ichCompStart)
ichCompEnd = ichLineStart+cchLine;
else
{
// If the starting position is not proceeding,
// let's get out of here.
break;
}
}
// Draw the line
DrawCompositionLine(hwnd, hdc, plv->hfontLabel, szCompStr, szCompAttr, ichCompStart, ichCompEnd, LOWORD(dwSel));
ichCompStart = ichCompEnd;
}
ReleaseDC(hwnd, hdc);
}
// We don't want to repaint the window.
ValidateRect(hwnd, NULL);
}
#endif
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