diff options
Diffstat (limited to 'src/modules/clist/clcidents.cpp')
| -rw-r--r-- | src/modules/clist/clcidents.cpp | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/src/modules/clist/clcidents.cpp b/src/modules/clist/clcidents.cpp new file mode 100644 index 0000000000..7cb18760fe --- /dev/null +++ b/src/modules/clist/clcidents.cpp @@ -0,0 +1,201 @@ +/*
+
+Miranda IM: the free IM client for Microsoft* Windows*
+
+Copyright 2000-2009 Miranda ICQ/IM project,
+all portions of this codebase are copyrighted to the people
+listed in contributors.txt.
+
+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.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+#include "commonheaders.h"
+#include "clc.h"
+
+/* the CLC uses 3 different ways to identify elements in its list, this file
+contains routines to convert between them.
+
+1) struct ClcContact/struct ClcGroup pair. Only ever used within the duration
+ of a single operation, but used at some point in nearly everything
+2) index integer. The 0-based number of the item from the top. Only visible
+ items are counted (ie not closed groups). Used for saving selection and drag
+ highlight
+3) hItem handle. Either the hContact or (hGroup|HCONTACT_ISGROUP). Used
+ exclusively externally
+
+1->2: GetRowsPriorTo()
+1->3: ContactToHItem()
+3->1: FindItem()
+2->1: GetRowByIndex()
+*/
+
+int fnGetRowsPriorTo(struct ClcGroup *group, struct ClcGroup *subgroup, int contactIndex)
+{
+ int count = 0;
+
+ group->scanIndex = 0;
+ for (;;) {
+ if (group->scanIndex == group->cl.count) {
+ group = group->parent;
+ if (group == NULL)
+ break;
+ group->scanIndex++;
+ continue;
+ }
+ if (group == subgroup && contactIndex == group->scanIndex)
+ return count;
+ count++;
+ if (group->cl.items[group->scanIndex]->type == CLCIT_GROUP) {
+ if (group->cl.items[group->scanIndex]->group == subgroup && contactIndex == -1)
+ return count - 1;
+ if (group->cl.items[group->scanIndex]->group->expanded) {
+ group = group->cl.items[group->scanIndex]->group;
+ group->scanIndex = 0;
+ continue;
+ }
+ }
+ group->scanIndex++;
+ }
+ return -1;
+}
+
+int fnFindItem(HWND hwnd, struct ClcData *dat, HANDLE hItem, struct ClcContact **contact, struct ClcGroup **subgroup, int *isVisible)
+{
+ int index = 0;
+ int nowVisible = 1;
+ struct ClcGroup *group = &dat->list;
+
+ group->scanIndex = 0;
+ for (;;) {
+ if (group->scanIndex == group->cl.count) {
+ struct ClcGroup *tgroup;
+ group = group->parent;
+ if (group == NULL)
+ break;
+ nowVisible = 1;
+ for (tgroup = group; tgroup; tgroup = tgroup->parent)
+ if (!group->expanded) {
+ nowVisible = 0;
+ break;
+ }
+ group->scanIndex++;
+ continue;
+ }
+ if (nowVisible)
+ index++;
+ if ((IsHContactGroup(hItem) && group->cl.items[group->scanIndex]->type == CLCIT_GROUP
+ && ((unsigned) hItem & ~HCONTACT_ISGROUP) == group->cl.items[group->scanIndex]->groupId) || (IsHContactContact(hItem)
+ && group->cl.items[group->scanIndex]->type == CLCIT_CONTACT
+ && group->cl.items[group->scanIndex]->hContact == hItem) || (IsHContactInfo(hItem)
+ && group->cl.items[group->scanIndex]->type == CLCIT_INFO
+ && group->cl.items[group->scanIndex]->hContact == (HANDLE) ((UINT_PTR)hItem & ~HCONTACT_ISINFO)))
+ {
+ if (isVisible) {
+ if (!nowVisible)
+ *isVisible = 0;
+ else {
+ int posY = cli.pfnGetRowTopY(dat, index+1);
+ if (posY < dat->yScroll)
+ *isVisible = 0;
+ else {
+ RECT clRect;
+ GetClientRect(hwnd, &clRect);
+ if (posY >= dat->yScroll + clRect.bottom)
+ *isVisible = 0;
+ else
+ *isVisible = 1;
+ }
+ }
+ }
+ if (contact)
+ *contact = group->cl.items[group->scanIndex];
+ if (subgroup)
+ *subgroup = group;
+ return 1;
+ }
+ if (group->cl.items[group->scanIndex]->type == CLCIT_GROUP) {
+ group = group->cl.items[group->scanIndex]->group;
+ group->scanIndex = 0;
+ nowVisible &= group->expanded;
+ continue;
+ }
+ group->scanIndex++;
+ }
+ return 0;
+}
+
+int fnGetRowByIndex(struct ClcData *dat, int testindex, struct ClcContact **contact, struct ClcGroup **subgroup)
+{
+ int index = 0;
+ struct ClcGroup *group = &dat->list;
+
+ if (testindex<0)
+ return (-1);
+
+ group->scanIndex = 0;
+ for (;;) {
+ if (group->scanIndex == group->cl.count) {
+ group = group->parent;
+ if (group == NULL)
+ break;
+ group->scanIndex++;
+ continue;
+ }
+ if (testindex == index) {
+ if (contact)
+ *contact = group->cl.items[group->scanIndex];
+ if (subgroup)
+ *subgroup = group;
+ return index;
+ }
+ index++;
+ if (group->cl.items[group->scanIndex]->type == CLCIT_GROUP && group->cl.items[group->scanIndex]->group->expanded) {
+ group = group->cl.items[group->scanIndex]->group;
+ group->scanIndex = 0;
+ continue;
+ }
+ group->scanIndex++;
+ }
+ return -1;
+}
+
+HANDLE fnContactToHItem(struct ClcContact * contact)
+{
+ switch (contact->type) {
+ case CLCIT_CONTACT:
+ return contact->hContact;
+ case CLCIT_GROUP:
+ return (HANDLE) (contact->groupId | HCONTACT_ISGROUP);
+ case CLCIT_INFO:
+ return (HANDLE) ((UINT_PTR) contact->hContact | HCONTACT_ISINFO);
+ }
+ return NULL;
+}
+
+HANDLE fnContactToItemHandle(struct ClcContact * contact, DWORD * nmFlags)
+{
+ switch (contact->type) {
+ case CLCIT_CONTACT:
+ return contact->hContact;
+ case CLCIT_GROUP:
+ if (nmFlags)
+ *nmFlags |= CLNF_ISGROUP;
+ return (HANDLE) contact->groupId;
+ case CLCIT_INFO:
+ if (nmFlags)
+ *nmFlags |= CLNF_ISINFO;
+ return (HANDLE) ((UINT_PTR) contact->hContact | HCONTACT_ISINFO);
+ }
+ return NULL;
+}
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