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author | Mystery Man <unknown@mandriva.org> | 2002-09-20 07:09:47 +0000 |
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committer | Mystery Man <unknown@mandriva.org> | 2002-09-20 07:09:47 +0000 |
commit | 3701efa9b042f8b7fb0d89f014606c406ad31312 (patch) | |
tree | 602b8ace242667b7e9614d64cf15f3c95d8c5a74 /mdk-stage1/newt/listbox.c | |
parent | 6f1bbe0c09afd41c15ef66986f8a78a4fe8e4e54 (diff) | |
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This commit was manufactured by cvs2svn to create tag 'V1_1_9_51mdk'.V1_1_9_51mdk
Diffstat (limited to 'mdk-stage1/newt/listbox.c')
-rw-r--r-- | mdk-stage1/newt/listbox.c | 752 |
1 files changed, 0 insertions, 752 deletions
diff --git a/mdk-stage1/newt/listbox.c b/mdk-stage1/newt/listbox.c deleted file mode 100644 index cdbf792ca..000000000 --- a/mdk-stage1/newt/listbox.c +++ /dev/null @@ -1,752 +0,0 @@ -/* This goofed-up box whacked into shape by Elliot Lee <sopwith@cuc.edu> - (from the original listbox by Erik Troan <ewt@redhat.com>) - and contributed to newt for use under the LGPL license. - Copyright (C) 1996, 1997 Elliot Lee */ - -#include <slang.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <ctype.h> - -#include "newt.h" -#include "newt_pr.h" - - -/* Linked list of items in the listbox */ -struct items { - char * text; - const void *data; - unsigned char isSelected; - struct items *next; -}; - -/* Holds all the relevant information for this listbox */ -struct listbox { - newtComponent sb; /* Scrollbar on right side of listbox */ - int curWidth; /* size of text w/o scrollbar or border*/ - int curHeight; /* size of text w/o border */ - int sbAdjust; - int bdxAdjust, bdyAdjust; - int numItems, numSelected; - int userHasSetWidth; - int currItem, startShowItem; /* startShowItem is the first item displayed - on the screen */ - int isActive; /* If we handle key events all the time, it seems - to do things even when they are supposed to be for - another button/whatever */ - struct items *boxItems; - int grow; - int flags; /* flags for this listbox, right now just - NEWT_FLAG_RETURNEXIT */ -}; - -static void listboxDraw(newtComponent co); -static void listboxDestroy(newtComponent co); -static struct eventResult listboxEvent(newtComponent co, struct event ev); -static void newtListboxRealSetCurrent(newtComponent co); -static void listboxPlace(newtComponent co, int newLeft, int newTop); -static inline void updateWidth(newtComponent co, struct listbox * li, - int maxField); -static void listboxMapped(newtComponent co, int isMapped); - -static struct componentOps listboxOps = { - listboxDraw, - listboxEvent, - listboxDestroy, - listboxPlace, - listboxMapped, -}; - -static void listboxMapped(newtComponent co, int isMapped) { - struct listbox * li = co->data; - - co->isMapped = isMapped; - if (li->sb) - li->sb->ops->mapped(li->sb, isMapped); -} - -static void listboxPlace(newtComponent co, int newLeft, int newTop) { - struct listbox * li = co->data; - - co->top = newTop; - co->left = newLeft; - - if (li->sb) - li->sb->ops->place(li->sb, co->left + co->width - li->bdxAdjust - 1, - co->top); -} - -newtComponent newtListbox(int left, int top, int height, int flags) { - newtComponent co, sb; - struct listbox * li; - - if (!(co = malloc(sizeof(*co)))) - return NULL; - - if (!(li = malloc(sizeof(struct listbox)))) { - free(co); - return NULL; - } - - li->boxItems = NULL; - li->numItems = 0; - li->currItem = 0; - li->numSelected = 0; - li->isActive = 0; - li->userHasSetWidth = 0; - li->startShowItem = 0; - li->sbAdjust = 0; - li->bdxAdjust = 0; - li->bdyAdjust = 0; - li->flags = flags & (NEWT_FLAG_RETURNEXIT | NEWT_FLAG_BORDER | - NEWT_FLAG_MULTIPLE); - - if (li->flags & NEWT_FLAG_BORDER) { - li->bdxAdjust = 2; - li->bdyAdjust = 1; - } - - co->height = height; - li->curHeight = co->height - (2 * li->bdyAdjust); - - if (height) { - li->grow = 0; - if (flags & NEWT_FLAG_SCROLL) { - sb = newtVerticalScrollbar(left, top + li->bdyAdjust, - li->curHeight, - COLORSET_LISTBOX, COLORSET_ACTLISTBOX); - li->sbAdjust = 3; - } else { - sb = NULL; - } - } else { - li->grow = 1; - sb = NULL; - } - - li->sb = sb; - co->data = li; - co->isMapped = 0; - co->left = left; - co->top = top; - co->ops = &listboxOps; - co->takesFocus = 1; - co->callback = NULL; - - updateWidth(co, li, 5); - - return co; -} - -static inline void updateWidth(newtComponent co, struct listbox * li, - int maxField) { - li->curWidth = maxField; - co->width = li->curWidth + li->sbAdjust + 2 * li->bdxAdjust; - - if (li->sb) - li->sb->left = co->left + co->width - li->bdxAdjust - 1; -} - -void newtListboxSetCurrentByKey(newtComponent co, void * key) { - struct listbox * li = co->data; - struct items * item; - int i; - - item = li->boxItems, i = 0; - while (item && item->data != key) - item = item->next, i++; - - if (item) - newtListboxSetCurrent(co, i); -} - -void newtListboxSetCurrent(newtComponent co, int num) -{ - struct listbox * li = co->data; - - if (num >= li->numItems) - li->currItem = li->numItems - 1; - else if (num < 0) - li->currItem = 0; - else - li->currItem = num; - - if (li->currItem < li->startShowItem) - li->startShowItem = li->currItem; - else if (li->currItem - li->startShowItem > li->curHeight - 1) - li->startShowItem = li->currItem - li->curHeight + 1; - if (li->startShowItem + li->curHeight > li->numItems) - li->startShowItem = li->numItems - li->curHeight; - if(li->startShowItem < 0) - li->startShowItem = 0; - - newtListboxRealSetCurrent(co); -} - -static void newtListboxRealSetCurrent(newtComponent co) -{ - struct listbox * li = co->data; - - if(li->sb) - newtScrollbarSet(li->sb, li->currItem + 1, li->numItems); - listboxDraw(co); - if(co->callback) co->callback(co, co->callbackData); -} - -void newtListboxSetWidth(newtComponent co, int width) { - struct listbox * li = co->data; - - co->width = width; - li->curWidth = co->width - li->sbAdjust - 2 * li->bdxAdjust; - li->userHasSetWidth = 1; - if (li->sb) li->sb->left = co->width + co->left - 1; - listboxDraw(co); -} - -void * newtListboxGetCurrent(newtComponent co) { - struct listbox * li = co->data; - int i; - struct items *item; - - for(i = 0, item = li->boxItems; item != NULL && i < li->currItem; - i++, item = item->next); - - if (item) - return (void *)item->data; - else - return NULL; -} - -void newtListboxSelectItem(newtComponent co, const void * key, - enum newtFlagsSense sense) -{ - struct listbox * li = co->data; - int i; - struct items * item; - - item = li->boxItems, i = 0; - while (item && item->data != key) - item = item->next, i++; - - if (!item) return; - - if (item->isSelected) - li->numSelected--; - - switch(sense) { - case NEWT_FLAGS_RESET: - item->isSelected = 0; break; - case NEWT_FLAGS_SET: - item->isSelected = 1; break; - case NEWT_FLAGS_TOGGLE: - item->isSelected = !item->isSelected; - } - - if (item->isSelected) - li->numSelected++; - - listboxDraw(co); -} - -void newtListboxClearSelection(newtComponent co) -{ - struct items *item; - struct listbox * li = co->data; - - for(item = li->boxItems; item != NULL; - item = item->next) - item->isSelected = 0; - li->numSelected = 0; - listboxDraw(co); -} - -/* Free the returned array after use, but NOT the values in the array */ -void ** newtListboxGetSelection(newtComponent co, int *numitems) -{ - struct listbox * li; - int i; - void **retval; - struct items *item; - - if(!co || !numitems) return NULL; - - li = co->data; - if(!li || !li->numSelected) return NULL; - - retval = malloc(li->numSelected * sizeof(void *)); - for(i = 0, item = li->boxItems; item != NULL; - item = item->next) - if(item->isSelected) - retval[i++] = (void *)item->data; - *numitems = li->numSelected; - return retval; -} - -void newtListboxSetEntry(newtComponent co, int num, const char * text) { - struct listbox * li = co->data; - int i; - struct items *item; - - for(i = 0, item = li->boxItems; item != NULL && i < num; - i++, item = item->next); - - if(!item) - return; - else { - free(item->text); - item->text = strdup(text); - } - if (li->userHasSetWidth == 0 && strlen(text) > (size_t)li->curWidth) { - updateWidth(co, li, strlen(text)); - } - - if (num >= li->startShowItem && num <= li->startShowItem + co->height) - listboxDraw(co); -} - -void newtListboxSetData(newtComponent co, int num, void * data) { - struct listbox * li = co->data; - int i; - struct items *item; - - for(i = 0, item = li->boxItems; item != NULL && i < num; - i++, item = item->next); - - item->data = data; -} - -int newtListboxAppendEntry(newtComponent co, const char * text, - const void * data) { - struct listbox * li = co->data; - struct items *item; - - if(li->boxItems) { - for (item = li->boxItems; item->next != NULL; item = item->next); - - item = item->next = malloc(sizeof(struct items)); - } else { - item = li->boxItems = malloc(sizeof(struct items)); - } - - if (!li->userHasSetWidth && text && (strlen(text) > (size_t)li->curWidth)) - updateWidth(co, li, strlen(text)); - - item->text = strdup(text); item->data = data; item->next = NULL; - item->isSelected = 0; - - if (li->grow) - co->height++, li->curHeight++; - li->numItems++; - - return 0; -} - -int newtListboxInsertEntry(newtComponent co, const char * text, - const void * data, void * key) { - struct listbox * li = co->data; - struct items *item, *t; - - if (li->boxItems) { - if (key) { - item = li->boxItems; - while (item && item->data != key) item = item->next; - - if (!item) return 1; - - t = item->next; - item = item->next = malloc(sizeof(struct items)); - item->next = t; - } else { - t = li->boxItems; - item = li->boxItems = malloc(sizeof(struct items)); - item->next = t; - } - } else if (key) { - return 1; - } else { - item = li->boxItems = malloc(sizeof(struct items)); - item->next = NULL; - } - - if (!li->userHasSetWidth && text && (strlen(text) > (size_t)li->curWidth)) - updateWidth(co, li, strlen(text)); - - item->text = strdup(text?text:"(null)"); item->data = data; - item->isSelected = 0; - - if (li->sb) - li->sb->left = co->left + co->width - li->bdxAdjust - 1; - li->numItems++; - - listboxDraw(co); - - return 0; -} - -int newtListboxDeleteEntry(newtComponent co, void * key) { - struct listbox * li = co->data; - int widest = 0, t; - struct items *item, *item2 = NULL; - int num; - - if (li->boxItems == NULL || li->numItems <= 0) - return 0; - - num = 0; - - item2 = NULL, item = li->boxItems; - while (item && item->data != key) { - item2 = item; - item = item->next; - num++; - } - - if (!item) - return -1; - - if (item2) - item2->next = item->next; - else - li->boxItems = item->next; - - free(item->text); - free(item); - li->numItems--; - - if (!li->userHasSetWidth) { - widest = 0; - for (item = li->boxItems; item != NULL; item = item->next) - if ((t = strlen(item->text)) > widest) widest = t; - } - - if (li->currItem >= num) - li->currItem--; - - if (!li->userHasSetWidth) { - updateWidth(co, li, widest); - } - - listboxDraw(co); - - return 0; -} - -void newtListboxClear(newtComponent co) -{ - struct listbox * li; - struct items *anitem, *nextitem; - if(co == NULL || (li = co->data) == NULL) - return; - for(anitem = li->boxItems; anitem != NULL; anitem = nextitem) { - nextitem = anitem->next; - free(anitem->text); - free(anitem); - } - li->numItems = li->numSelected = li->currItem = li->startShowItem = 0; - li->boxItems = NULL; - if (!li->userHasSetWidth) - updateWidth(co, li, 5); -} - -/* If you don't want to get back the text, pass in NULL for the ptr-ptr. Same - goes for the data. */ -void newtListboxGetEntry(newtComponent co, int num, char **text, void **data) { - struct listbox * li = co->data; - int i; - struct items *item; - - if (!li->boxItems || num >= li->numItems) { - if(text) - *text = NULL; - if(data) - *data = NULL; - return; - } - - i = 0; - item = li->boxItems; - while (item && i < num) { - i++, item = item->next; - } - - if (item) { - if (text) - *text = item->text; - if (data) - *data = (void *)item->data; - } -} - -static void listboxDraw(newtComponent co) -{ - struct listbox * li = co->data; - struct items *item; - int i, j; - - if (!co->isMapped) return ; - - if(li->flags & NEWT_FLAG_BORDER) { - if(li->isActive) - SLsmg_set_color(NEWT_COLORSET_ACTLISTBOX); - else - SLsmg_set_color(NEWT_COLORSET_LISTBOX); - - newtDrawBox(co->left, co->top, co->width, co->height, 0); - } - - if(li->sb) - li->sb->ops->draw(li->sb); - - SLsmg_set_color(NEWT_COLORSET_LISTBOX); - - for(i = 0, item = li->boxItems; item != NULL && i < li->startShowItem; - i++, item = item->next); - - j = i; - - for (i = 0; item != NULL && i < li->curHeight; i++, item = item->next) { - if (!item->text) continue; - - newtGotorc(co->top + i + li->bdyAdjust, co->left + li->bdxAdjust); - if(j + i == li->currItem) { - if(item->isSelected) - SLsmg_set_color(NEWT_COLORSET_ACTSELLISTBOX); - else - SLsmg_set_color(NEWT_COLORSET_ACTLISTBOX); - } else if(item->isSelected) - SLsmg_set_color(NEWT_COLORSET_SELLISTBOX); - else - SLsmg_set_color(NEWT_COLORSET_LISTBOX); - - SLsmg_write_nstring(item->text, li->curWidth); - - } - newtGotorc(co->top + (li->currItem - li->startShowItem), co->left); -} - -static struct eventResult listboxEvent(newtComponent co, struct event ev) { - struct eventResult er; - struct listbox * li = co->data; - struct items *item; - int i; - - er.result = ER_IGNORED; - - if(ev.when == EV_EARLY || ev.when == EV_LATE) { - return er; - } - - switch(ev.event) { - case EV_KEYPRESS: - if (!li->isActive) break; - - switch(ev.u.key) { - case ' ': - if(!(li->flags & NEWT_FLAG_MULTIPLE)) break; - newtListboxSelectItem(co, li->boxItems[li->currItem].data, - NEWT_FLAGS_TOGGLE); - er.result = ER_SWALLOWED; - /* We don't break here, because it is cool to be able to - hold space to select a bunch of items in a list at once */ - - case NEWT_KEY_DOWN: - if(li->numItems <= 0) break; - if(li->currItem < li->numItems - 1) { - li->currItem++; - if(li->currItem > (li->startShowItem + li->curHeight - 1)) { - li->startShowItem = li->currItem - li->curHeight + 1; - if(li->startShowItem + li->curHeight > li->numItems) - li->startShowItem = li->numItems - li->curHeight; - } - if(li->sb) - newtScrollbarSet(li->sb, li->currItem + 1, li->numItems); - listboxDraw(co); - } - if(co->callback) co->callback(co, co->callbackData); - er.result = ER_SWALLOWED; - break; - - case NEWT_KEY_ENTER: - if(li->numItems <= 0) break; - if(li->flags & NEWT_FLAG_RETURNEXIT) - er.result = ER_EXITFORM; - break; - - case NEWT_KEY_UP: - if(li->numItems <= 0) break; - if(li->currItem > 0) { - li->currItem--; - if(li->currItem < li->startShowItem) - li->startShowItem = li->currItem; - if(li->sb) - newtScrollbarSet(li->sb, li->currItem + 1, li->numItems); - listboxDraw(co); - } - if(co->callback) co->callback(co, co->callbackData); - er.result = ER_SWALLOWED; - break; - - case NEWT_KEY_PGUP: - if(li->numItems <= 0) break; - li->startShowItem -= li->curHeight - 1; - if(li->startShowItem < 0) - li->startShowItem = 0; - li->currItem -= li->curHeight - 1; - if(li->currItem < 0) - li->currItem = 0; - newtListboxRealSetCurrent(co); - er.result = ER_SWALLOWED; - break; - - case NEWT_KEY_PGDN: - if(li->numItems <= 0) break; - li->startShowItem += li->curHeight; - if(li->startShowItem > (li->numItems - li->curHeight)) { - li->startShowItem = li->numItems - li->curHeight; - } - li->currItem += li->curHeight; - if(li->currItem >= li->numItems) { - li->currItem = li->numItems - 1; - } - newtListboxRealSetCurrent(co); - er.result = ER_SWALLOWED; - break; - - case NEWT_KEY_HOME: - if(li->numItems <= 0) break; - newtListboxSetCurrent(co, 0); - er.result = ER_SWALLOWED; - break; - - case NEWT_KEY_END: - if(li->numItems <= 0) break; - li->startShowItem = li->numItems - li->curHeight; - if(li->startShowItem < 0) - li->startShowItem = 0; - li->currItem = li->numItems - 1; - newtListboxRealSetCurrent(co); - er.result = ER_SWALLOWED; - break; - default: - if (li->numItems <= 0) break; - if (ev.u.key < NEWT_KEY_EXTRA_BASE && isalpha(ev.u.key)) { - for(i = 0, item = li->boxItems; item != NULL && - i < li->currItem; i++, item = item->next); - - if (item && item->text && (toupper(*item->text) == toupper(ev.u.key))) { - item = item->next; - i++; - } else { - item = li->boxItems; - i = 0; - } - while (item && item->text && - toupper(*item->text) != toupper(ev.u.key)) { - item = item->next; - i++; - } - if (item) { - li->currItem = i; - if(li->currItem < li->startShowItem || - li->currItem > li->startShowItem) - li->startShowItem = - li->currItem > li->numItems - li->curHeight ? - li->startShowItem = li->numItems - li->curHeight : - li->currItem; - if(li->sb) - newtScrollbarSet(li->sb, li->currItem + 1, li->numItems); - newtListboxRealSetCurrent(co); - er.result = ER_SWALLOWED; - } - } - } - break; - - case EV_FOCUS: - li->isActive = 1; - listboxDraw(co); - er.result = ER_SWALLOWED; - break; - - case EV_UNFOCUS: - li->isActive = 0; - listboxDraw(co); - er.result = ER_SWALLOWED; - break; - - case EV_MOUSE: - /* if this mouse click was within the listbox, make the current - item the item clicked on. */ - /* Up scroll arrow */ - if (li->sb && - ev.u.mouse.x == co->left + co->width - li->bdxAdjust - 1 && - ev.u.mouse.y == co->top + li->bdyAdjust) { - if(li->numItems <= 0) break; - if(li->currItem > 0) { - li->currItem--; - if(li->currItem < li->startShowItem) - li->startShowItem = li->currItem; - if(li->sb) - newtScrollbarSet(li->sb, li->currItem + 1, li->numItems); - listboxDraw(co); - } - if(co->callback) co->callback(co, co->callbackData); - er.result = ER_SWALLOWED; - break; - } - /* Down scroll arrow */ - if (li->sb && - ev.u.mouse.x == co->left + co->width - li->bdxAdjust - 1 && - ev.u.mouse.y == co->top + co->height - li->bdyAdjust - 1) { - if(li->numItems <= 0) break; - if(li->currItem < li->numItems - 1) { - li->currItem++; - if(li->currItem > (li->startShowItem + li->curHeight - 1)) { - li->startShowItem = li->currItem - li->curHeight + 1; - if(li->startShowItem + li->curHeight > li->numItems) - li->startShowItem = li->numItems - li->curHeight; - } - if(li->sb) - newtScrollbarSet(li->sb, li->currItem + 1, li->numItems); - listboxDraw(co); - } - if(co->callback) co->callback(co, co->callbackData); - er.result = ER_SWALLOWED; - break; - } - if ((ev.u.mouse.y >= co->top + li->bdyAdjust) && - (ev.u.mouse.y <= co->top + co->height - (li->bdyAdjust * 2)) && - (ev.u.mouse.x >= co->left + li->bdxAdjust) && - (ev.u.mouse.x <= co->left + co->width + (li->bdxAdjust * 2))) { - li->currItem = li->startShowItem + - (ev.u.mouse.y - li->bdyAdjust - co->top); - newtListboxRealSetCurrent(co); - listboxDraw(co); - if(co->callback) co->callback(co, co->callbackData); - er.result = ER_SWALLOWED; - break; - } - } - - return er; -} - -static void listboxDestroy(newtComponent co) { - struct listbox * li = co->data; - struct items * item, * nextitem; - - nextitem = item = li->boxItems; - - while (item != NULL) { - nextitem = item->next; - free(item->text); - free(item); - item = nextitem; - } - - if (li->sb) li->sb->ops->destroy(li->sb); - - free(li); - free(co); -} |