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windows.c
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#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "errno.h"
#include "newt.h"
static void * newtvwindow(char * title, char * button1, char * button2,
char * button3, char * message, va_list args) {
newtComponent b1, b2 = NULL, b3 = NULL, t, f, answer;
char * buf = NULL;
int size = 0;
int i = 0;
int scroll = 0;
int width, height;
char * flowedText;
newtGrid grid, buttonGrid;
do {
va_list argscopy;
va_copy(argscopy, args);
size += 1000;
if (buf) free(buf);
buf = malloc(size);
i = vsnprintf(buf, size, message, argscopy);
va_end(argscopy);
} while (i >= size || i == -1);
flowedText = newtReflowText(buf, 35, 5, 5, &width, &height);
if (height > 6) {
free(flowedText);
flowedText = newtReflowText(buf, 60, 5, 5, &width, &height);
}
free(buf);
if (height > 12) {
height = 12;
scroll = NEWT_FLAG_SCROLL;
}
t = newtTextbox(-1, -1, width, height, NEWT_TEXTBOX_WRAP | scroll);
newtTextboxSetText(t, flowedText);
free(flowedText);
if (button3) {
buttonGrid = newtButtonBar(button1, &b1, button2, &b2,
button3, &b3, NULL);
} else if (button2) {
buttonGrid = newtButtonBar(button1, &b1, button2, &b2, NULL);
} else {
buttonGrid = newtButtonBar(button1, &b1, NULL);
}
newtGridSetField(buttonGrid, 0, 0, NEWT_GRID_COMPONENT, b1,
0, 0, button2 ? 1 : 0, 0, 0, 0);
grid = newtCreateGrid(1, 2);
newtGridSetField(grid, 0, 0, NEWT_GRID_COMPONENT, t, 0, 0, 0, 0, 0, 0);
newtGridSetField(grid, 0, 1, NEWT_GRID_SUBGRID, buttonGrid,
0, 1, 0, 0, 0, NEWT_GRID_FLAG_GROWX);
newtGridWrappedWindow(grid, title);
f = newtForm(NULL, NULL, 0);
newtFormAddComponents(f, t, b1, NULL);
if (button2)
newtFormAddComponent(f, b2);
if (button3)
newtFormAddComponent(f, b3);
answer = newtRunForm(f);
newtGridFree(grid, 1);
newtFormDestroy(f);
newtPopWindow();
if (answer == f)
return NULL;
else if (answer == b1)
return button1;
else if (answer == b2)
return button2;
return button3;
}
int newtWinChoice(char * title, char * button1, char * button2,
char * message, ...) {
va_list args;
void * rc;
va_start(args, message);
rc = newtvwindow(title, button1, button2, NULL, message, args);
va_end(args);
if (rc == button1)
return 1;
else if (rc == button2)
return 2;
return 0;
}
void newtWinMessage(char * title, char * buttonText, char * text, ...) {
va_list args;
va_start(args, text);
newtvwindow(title, buttonText, NULL, NULL, text, args);
va_end(args);
}
void newtWinMessagev(char * title, char * buttonText, char * text,
va_list argv) {
newtvwindow(title, buttonText, NULL, NULL, text, argv);
}
int newtWinTernary(char * title, char * button1, char * button2,
char * button3, char * message, ...) {
va_list args;
void * rc;
va_start(args, message);
rc = newtvwindow(title, button1, button2, button3, message, args);
va_end(args);
if (rc == button1)
return 1;
else if (rc == button2)
return 2;
else if (rc == button3)
return 3;
return 0;
}
int newtWinMenu(char * title, char * text, int suggestedWidth, int flexDown,
int flexUp, int maxListHeight, char ** items, int * listItem,
char * button1, ...) {
newtComponent textbox, listbox, result, form;
va_list args;
newtComponent *buttons = NULL;
newtGrid grid, buttonBar;
size_t totalButtons = 0, numButtons = 0;
int i, rc;
int needScroll;
char * buttonName;
textbox = newtTextboxReflowed(-1, -1, text, suggestedWidth, flexDown,
flexUp, 0);
for (i = 0; items[i]; i++) ;
if (i < maxListHeight) maxListHeight = i;
needScroll = i > maxListHeight;
listbox = newtListbox(-1, -1, maxListHeight,
(needScroll ? NEWT_FLAG_SCROLL : 0) | NEWT_FLAG_RETURNEXIT);
for (i = 0; items[i]; i++) {
newtListboxAddEntry(listbox, items[i], (void *)(long) i);
}
newtListboxSetCurrent(listbox, *listItem);
va_start(args, button1);
for (buttonName = button1; buttonName; buttonName = va_arg(args, char *))
++totalButtons;
va_end(args);
buttons = (newtComponent *)alloca(sizeof(newtComponent)*(totalButtons));
va_start(args, button1);
for (buttonName = button1; buttonName; buttonName = va_arg(args, char *))
buttons[numButtons++] = newtButton(-1, -1, buttonName);
va_end(args);
buttonBar = newtCreateGrid(numButtons ? numButtons : 1, 1);
for (i = 0; i < numButtons; i++) {
newtGridSetField(buttonBar, i, 0, NEWT_GRID_COMPONENT,
buttons[i],
i ? 1 : 0, 0, 0, 0, 0, 0);
}
grid = newtGridSimpleWindow(textbox, listbox, buttonBar);
newtGridWrappedWindow(grid, title);
form = newtForm(NULL, 0, 0);
newtGridAddComponentsToForm(grid, form, 1);
newtGridFree(grid, 1);
result = newtRunForm(form);
*listItem = ((long) newtListboxGetCurrent(listbox));
for (rc = 0; rc < numButtons && result != buttons[rc]; rc++)
;
if (rc == numButtons)
rc = 0; /* F12 or return-on-exit (which are the same for us) */
else
rc++;
newtFormDestroy(form);
newtPopWindow();
return rc;
}
int newtWinEntries(char * title, char * text, int suggestedWidth, int flexDown,
int flexUp, int dataWidth,
struct newtWinEntry * items, char * button1, ...) {
newtComponent *buttons, result, form, textw;
newtGrid grid, buttonBar, subgrid;
int numItems;
int rc, i;
size_t numButtons = 0, totalButtons = 0;
char * buttonName;
va_list args;
textw = newtTextboxReflowed(-1, -1, text, suggestedWidth, flexDown,
flexUp, 0);
for (numItems = 0; items[numItems].text; numItems++);
va_start(args, button1);
for (buttonName = button1; buttonName; buttonName = va_arg(args, char *))
++totalButtons;
va_end(args);
buttons = (newtComponent *)alloca(sizeof(newtComponent)*(totalButtons));
va_start(args, button1);
for (buttonName = button1; buttonName; buttonName = va_arg(args, char *))
buttons[numButtons++] = newtButton(-1, -1, buttonName);
va_end(args);
buttonBar = newtCreateGrid(numButtons ? numButtons : 1, 1);
for (i = 0; i < numButtons; i++) {
newtGridSetField(buttonBar, i, 0, NEWT_GRID_COMPONENT,
buttons[i],
i ? 1 : 0, 0, 0, 0, 0, 0);
}
subgrid = newtCreateGrid(2, numItems ? numItems : 1);
for (i = 0; i < numItems; i++) {
newtGridSetField(subgrid, 0, i, NEWT_GRID_COMPONENT,
newtLabel(-1, -1, items[i].text),
0, 0, 0, 0, NEWT_ANCHOR_LEFT, 0);
newtGridSetField(subgrid, 1, i, NEWT_GRID_COMPONENT,
newtEntry(-1, -1, items[i].value ?
*items[i].value : NULL, dataWidth,
(const char **)items[i].value, items[i].flags),
1, 0, 0, 0, 0, 0);
}
grid = newtCreateGrid(1, 3);
form = newtForm(NULL, 0, 0);
newtGridSetField(grid, 0, 0, NEWT_GRID_COMPONENT, textw,
0, 0, 0, 0, NEWT_ANCHOR_LEFT, 0);
newtGridSetField(grid, 0, 1, NEWT_GRID_SUBGRID, subgrid,
0, 1, 0, 0, 0, 0);
newtGridSetField(grid, 0, 2, NEWT_GRID_SUBGRID, buttonBar,
0, 1, 0, 0, 0, NEWT_GRID_FLAG_GROWX);
newtGridAddComponentsToForm(grid, form, 1);
newtGridWrappedWindow(grid, title);
newtGridFree(grid, 1);
result = newtRunForm(form);
for (rc = 0; rc < numItems; rc++)
*items[rc].value = strdup(*items[rc].value);
for (rc = 0; rc < numButtons && result != buttons[rc]; rc++)
;
if (rc == numButtons)
rc = 0; /* F12 */
else
rc++;
newtFormDestroy(form);
newtPopWindow();
return rc;
}