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#include <slang.h>
#include <stdlib.h>
#include <string.h>
#include "newt.h"
#include "newt_pr.h"
struct button {
char * text;
int compact;
};
static void buttonDrawIt(newtComponent co, int active, int pushed);
static void buttonDrawText(newtComponent co, int active, int pushed);
static void buttonDraw(newtComponent c);
static void buttonDestroy(newtComponent co);
static struct eventResult buttonEvent(newtComponent c,
struct event ev);
static void buttonPlace(newtComponent co, int newLeft, int newTop);
static struct componentOps buttonOps = {
buttonDraw,
buttonEvent,
buttonDestroy,
buttonPlace,
newtDefaultMappedHandler,
} ;
static newtComponent createButton(int left, int row, const char * text, int compact) {
newtComponent co;
struct button * bu;
co = malloc(sizeof(*co));
bu = malloc(sizeof(struct button));
co->data = bu;
bu->text = strdup(text);
bu->compact = compact;
co->ops = &buttonOps;
if (bu->compact) {
co->height = 1;
co->width = strlen(text) + 3;
} else {
co->height = 4;
co->width = strlen(text) + 5;
}
co->top = row;
co->left = left;
co->takesFocus = 1;
co->isMapped = 0;
newtGotorc(co->top, co->left);
return co;
}
newtComponent newtCompactButton(int left, int row, const char * text) {
return createButton(left, row, text, 1);
}
newtComponent newtButton(int left, int row, const char * text) {
return createButton(left, row, text, 0);
}
static void buttonDestroy(newtComponent co) {
struct button * bu = co->data;
free(bu->text);
free(bu);
free(co);
}
static void buttonPlace(newtComponent co, int newLeft, int newTop) {
co->top = newTop;
co->left = newLeft;
newtGotorc(co->top, co->left);
}
static void buttonDraw(newtComponent co) {
buttonDrawIt(co, 0, 0);
}
static void buttonDrawIt(newtComponent co, int active, int pushed) {
struct button * bu = co->data;
if (!co->isMapped) return;
SLsmg_set_color(NEWT_COLORSET_BUTTON);
if (bu->compact) {
if (active)
SLsmg_set_color(NEWT_COLORSET_COMPACTBUTTON);
else
SLsmg_set_color(NEWT_COLORSET_BUTTON);
newtGotorc(co->top+ pushed, co->left + 1 + pushed);
SLsmg_write_char('<');
SLsmg_write_string(bu->text);
SLsmg_write_char('>');
} else {
if (pushed) {
SLsmg_set_color(NEWT_COLORSET_BUTTON);
newtDrawBox(co->left + 1, co->top + 1, co->width - 1, 3, 0);
SLsmg_set_color(NEWT_COLORSET_WINDOW);
newtClearBox(co->left, co->top, co->width, 1);
newtClearBox(co->left, co->top, 1, co->height);
} else {
newtDrawBox(co->left, co->top, co->width - 1, 3, 1);
}
buttonDrawText(co, active, pushed);
}
}
static void buttonDrawText(newtComponent co, int active, int pushed) {
struct button * bu = co->data;
if (pushed) pushed = 1;
if (active)
SLsmg_set_color(NEWT_COLORSET_ACTBUTTON);
else
SLsmg_set_color(NEWT_COLORSET_BUTTON);
newtGotorc(co->top + 1 + pushed, co->left + 1 + pushed);
SLsmg_write_char(' ');
SLsmg_write_string(bu->text);
SLsmg_write_char(' ');
}
static struct eventResult buttonEvent(newtComponent co,
struct event ev) {
struct eventResult er;
struct button * bu = co->data;
er.result = ER_IGNORED;
er.u.focus = NULL;
if (ev.when == EV_NORMAL) {
switch (ev.event) {
case EV_FOCUS:
buttonDrawIt(co, 1, 0);
er.result = ER_SWALLOWED;
break;
case EV_UNFOCUS:
buttonDrawIt(co, 0, 0);
er.result = ER_SWALLOWED;
break;
case EV_KEYPRESS:
if (ev.u.key == ' ' || ev.u.key == '\r') {
if (!bu->compact) {
/* look pushed */
buttonDrawIt(co, 1, 1);
newtRefresh();
newtDelay(150000);
buttonDrawIt(co, 1, 0);
newtRefresh();
newtDelay(150000);
}
er.result = ER_EXITFORM;
} else
er.result = ER_IGNORED;
break;
case EV_MOUSE:
if (ev.u.mouse.type == MOUSE_BUTTON_DOWN &&
co->top <= ev.u.mouse.y &&
co->top + co->height - !bu->compact > ev.u.mouse.y &&
co->left <= ev.u.mouse.x &&
co->left + co->width - !bu->compact > ev.u.mouse.x) {
if (!bu->compact) {
buttonDrawIt(co, 1, 1);
newtRefresh();
newtDelay(150000);
buttonDrawIt(co, 1, 0);
newtRefresh();
newtDelay(150000);
}
er.result = ER_EXITFORM;
}
break;
}
} else
er.result = ER_IGNORED;
return er;
}
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