summaryrefslogtreecommitdiffstats
path: root/mdk-stage1/newt/textbox.c
diff options
context:
space:
mode:
Diffstat (limited to 'mdk-stage1/newt/textbox.c')
-rw-r--r--mdk-stage1/newt/textbox.c409
1 files changed, 0 insertions, 409 deletions
diff --git a/mdk-stage1/newt/textbox.c b/mdk-stage1/newt/textbox.c
deleted file mode 100644
index 8eb4ae4db..000000000
--- a/mdk-stage1/newt/textbox.c
+++ /dev/null
@@ -1,409 +0,0 @@
-#include <ctype.h>
-#include <slang.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "newt.h"
-#include "newt_pr.h"
-
-struct textbox {
- char ** lines;
- int numLines;
- int linesAlloced;
- int doWrap;
- newtComponent sb;
- int topLine;
- int textWidth;
-};
-
-static char * expandTabs(const char * text);
-static void textboxDraw(newtComponent co);
-static void addLine(newtComponent co, const char * s, int len);
-static void doReflow(const char * text, char ** resultPtr, int width,
- int * badness, int * heightPtr);
-static struct eventResult textboxEvent(newtComponent c,
- struct event ev);
-static void textboxDestroy(newtComponent co);
-static void textboxPlace(newtComponent co, int newLeft, int newTop);
-static void textboxMapped(newtComponent co, int isMapped);
-
-static struct componentOps textboxOps = {
- textboxDraw,
- textboxEvent,
- textboxDestroy,
- textboxPlace,
- textboxMapped,
-} ;
-
-static void textboxMapped(newtComponent co, int isMapped) {
- struct textbox * tb = co->data;
-
- co->isMapped = isMapped;
- if (tb->sb)
- tb->sb->ops->mapped(tb->sb, isMapped);
-}
-
-static void textboxPlace(newtComponent co, int newLeft, int newTop) {
- struct textbox * tb = co->data;
-
- co->top = newTop;
- co->left = newLeft;
-
- if (tb->sb)
- tb->sb->ops->place(tb->sb, co->left + co->width - 1, co->top);
-}
-
-void newtTextboxSetHeight(newtComponent co, int height) {
- co->height = height;
-}
-
-int newtTextboxGetNumLines(newtComponent co) {
- struct textbox * tb = co->data;
-
- return (tb->numLines);
-}
-
-newtComponent newtTextboxReflowed(int left, int top, char * text, int width,
- int flexDown, int flexUp, int flags __attribute__ ((unused))) {
- newtComponent co;
- char * reflowedText;
- int actWidth, actHeight;
-
- reflowedText = newtReflowText(text, width, flexDown, flexUp,
- &actWidth, &actHeight);
-
- co = newtTextbox(left, top, actWidth, actHeight, NEWT_FLAG_WRAP);
- newtTextboxSetText(co, reflowedText);
- free(reflowedText);
-
- return co;
-}
-
-newtComponent newtTextbox(int left, int top, int width, int height, int flags) {
- newtComponent co;
- struct textbox * tb;
-
- co = malloc(sizeof(*co));
- tb = malloc(sizeof(*tb));
- co->data = tb;
-
- co->ops = &textboxOps;
-
- co->height = height;
- co->top = top;
- co->left = left;
- co->takesFocus = 0;
- co->width = width;
-
- tb->doWrap = flags & NEWT_FLAG_WRAP;
- tb->numLines = 0;
- tb->linesAlloced = 0;
- tb->lines = NULL;
- tb->topLine = 0;
- tb->textWidth = width;
-
- if (flags & NEWT_FLAG_SCROLL) {
- co->width += 2;
- tb->sb = newtVerticalScrollbar(co->left + co->width - 1, co->top,
- co->height, COLORSET_TEXTBOX, COLORSET_TEXTBOX);
- } else {
- tb->sb = NULL;
- }
-
- return co;
-}
-
-static char * expandTabs(const char * text) {
- int bufAlloced = strlen(text) + 40;
- char * buf, * dest;
- const char * src;
- int bufUsed = 0;
- int linePos = 0;
- int i;
-
- buf = malloc(bufAlloced + 1);
- for (src = text, dest = buf; *src; src++) {
- if ((bufUsed + 10) > bufAlloced) {
- bufAlloced += strlen(text) / 2;
- buf = realloc(buf, bufAlloced + 1);
- dest = buf + bufUsed;
- }
- if (*src == '\t') {
- i = 8 - (linePos & 8);
- memset(dest, ' ', i);
- dest += i, bufUsed += i, linePos += i;
- } else {
- if (*src == '\n')
- linePos = 0;
- else
- linePos++;
-
- *dest++ = *src;
- bufUsed++;
- }
- }
-
- *dest = '\0';
- return buf;
-}
-
-#define iseuckanji(c) (0xa1 <= (unsigned char)(c&0xff) && (unsigned char)(c&0xff) <= 0xfe)
-
-static void doReflow(const char * text, char ** resultPtr, int width,
- int * badness, int * heightPtr) {
- char * result = NULL;
- const char * chptr, * end;
- int i;
- int howbad = 0;
- int height = 0;
- int kanji = 0;
-
- if (resultPtr) {
- /* XXX I think this will work */
- result = malloc(strlen(text) + (strlen(text) / width) + 50);
- *result = '\0';
- }
-
- while (*text) {
- kanji = 0;
- end = strchr(text, '\n');
- if (!end)
- end = text + strlen(text);
-
- while (*text && text < end) {
- if (end - text < width) {
- if (result) {
- strncat(result, text, end - text);
- strcat(result, "\n");
- height++;
- }
-
- if (end - text < (width / 2))
- howbad += ((width / 2) - (end - text)) / 2;
- text = end;
- if (*text) text++;
- } else {
- chptr = text;
- kanji = 0;
- for ( i = 0; i < width - 1; i++ ) {
- if ( !iseuckanji(*chptr)) {
- kanji = 0;
- } else if ( kanji == 1 ) {
- kanji = 2;
- } else {
- kanji = 1;
- }
- chptr++;
- }
- if (kanji == 0) {
- while (chptr > text && !isspace(*chptr)) chptr--;
- while (chptr > text && isspace(*chptr)) chptr--;
- chptr++;
- }
-
- if (chptr-text == 1 && !isspace(*chptr))
- chptr = text + width - 1;
-
- if (chptr > text)
- howbad += width - (chptr - text) + 1;
- if (result) {
- if (kanji == 1) {
- strncat(result, text, chptr - text + 1);
- chptr++;
- kanji = 0;
- } else {
- strncat(result, text, chptr - text);
- }
- strcat(result, "\n");
- height++;
- }
-
- if (isspace(*chptr))
- text = chptr + 1;
- else
- text = chptr;
- while (isspace(*text)) text++;
- }
- }
- }
-
-// if (result) printf("result: %s\n", result);
-
- if (badness) *badness = howbad;
- if (resultPtr) *resultPtr = result;
- if (heightPtr) *heightPtr = height;
-}
-
-char * newtReflowText(char * text, int width, int flexDown, int flexUp,
- int * actualWidth, int * actualHeight) {
- int min, max;
- int i;
- char * result;
- int minbad, minbadwidth, howbad;
- char * expandedText;
-
- expandedText = expandTabs(text);
-
- if (flexDown || flexUp) {
- min = width - flexDown;
- max = width + flexUp;
-
- minbad = -1;
- minbadwidth = width;
-
- for (i = min; i <= max; i++) {
- doReflow(expandedText, NULL, i, &howbad, NULL);
-
- if (minbad == -1 || howbad < minbad) {
- minbad = howbad;
- minbadwidth = i;
- }
- }
-
- width = minbadwidth;
- }
-
- doReflow(expandedText, &result, width, NULL, actualHeight);
- free(expandedText);
- if (actualWidth) *actualWidth = width;
- return result;
-}
-
-void newtTextboxSetText(newtComponent co, const char * text) {
- const char * start, * end;
- struct textbox * tb = co->data;
- char * reflowed, * expanded;
- int badness, height;
-
- if (tb->lines) {
- free(tb->lines);
- tb->linesAlloced = tb->numLines = 0;
- }
-
- expanded = expandTabs(text);
-
- if (tb->doWrap) {
- doReflow(expanded, &reflowed, tb->textWidth, &badness, &height);
- free(expanded);
- expanded = reflowed;
- }
-
- for (start = expanded; *start; start++)
- if (*start == '\n') tb->linesAlloced++;
-
- /* This ++ leaves room for an ending line w/o a \n */
- tb->linesAlloced++;
- tb->lines = malloc(sizeof(char *) * tb->linesAlloced);
-
- start = expanded;
- while ((end = strchr(start, '\n'))) {
- addLine(co, start, end - start);
- start = end + 1;
- }
-
- if (*start)
- addLine(co, start, strlen(start));
-
- free(expanded);
-}
-
-/* This assumes the buffer is allocated properly! */
-static void addLine(newtComponent co, const char * s, int len) {
- struct textbox * tb = co->data;
-
- if (len > tb->textWidth) len = tb->textWidth;
-
- tb->lines[tb->numLines] = malloc(tb->textWidth + 1);
- memset(tb->lines[tb->numLines], ' ', tb->textWidth);
- memcpy(tb->lines[tb->numLines], s, len);
- tb->lines[tb->numLines++][tb->textWidth] = '\0';
-}
-
-static void textboxDraw(newtComponent c) {
- int i;
- struct textbox * tb = c->data;
- int size;
-
- if (tb->sb) {
- size = tb->numLines - c->height;
- newtScrollbarSet(tb->sb, tb->topLine, size ? size : 0);
- tb->sb->ops->draw(tb->sb);
- }
-
- SLsmg_set_color(NEWT_COLORSET_TEXTBOX);
-
- for (i = 0; (i + tb->topLine) < tb->numLines && i < c->height; i++) {
- newtGotorc(c->top + i, c->left);
- SLsmg_write_string(tb->lines[i + tb->topLine]);
- }
-}
-
-static struct eventResult textboxEvent(newtComponent co,
- struct event ev) {
- struct textbox * tb = co->data;
- struct eventResult er;
-
- er.result = ER_IGNORED;
-
- if (ev.when == EV_EARLY && ev.event == EV_KEYPRESS && tb->sb) {
- switch (ev.u.key) {
- case NEWT_KEY_UP:
- if (tb->topLine) tb->topLine--;
- textboxDraw(co);
- er.result = ER_SWALLOWED;
- break;
-
- case NEWT_KEY_DOWN:
- if (tb->topLine < (tb->numLines - co->height)) tb->topLine++;
- textboxDraw(co);
- er.result = ER_SWALLOWED;
- break;
-
- case NEWT_KEY_PGDN:
- tb->topLine += co->height;
- if (tb->topLine > (tb->numLines - co->height)) {
- tb->topLine = tb->numLines - co->height;
- if (tb->topLine < 0) tb->topLine = 0;
- }
- textboxDraw(co);
- er.result = ER_SWALLOWED;
- break;
-
- case NEWT_KEY_PGUP:
- tb->topLine -= co->height;
- if (tb->topLine < 0) tb->topLine = 0;
- textboxDraw(co);
- er.result = ER_SWALLOWED;
- break;
- }
- }
- if (ev.when == EV_EARLY && ev.event == EV_MOUSE && tb->sb) {
- /* Top scroll arrow */
- if (ev.u.mouse.x == co->width && ev.u.mouse.y == co->top) {
- if (tb->topLine) tb->topLine--;
- textboxDraw(co);
-
- er.result = ER_SWALLOWED;
- }
- /* Bottom scroll arrow */
- if (ev.u.mouse.x == co->width &&
- ev.u.mouse.y == co->top + co->height - 1) {
- if (tb->topLine < (tb->numLines - co->height)) tb->topLine++;
- textboxDraw(co);
-
- er.result = ER_SWALLOWED;
- }
- }
- return er;
-}
-
-static void textboxDestroy(newtComponent co) {
- int i;
- struct textbox * tb = co->data;
-
- for (i = 0; i < tb->numLines; i++)
- free(tb->lines[i]);
- free(tb->lines);
- free(tb);
- free(co);
-}
generated by cgit v1.2.1 (git 2.21.0) at 2024-04-30 22:02:16 +0000