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-rw-r--r--mdk-stage1/newt/listbox.c752
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);
-}
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