aboutsummaryrefslogtreecommitdiff
path: root/src/guiMessageMenu.cpp
blob: c6592e51cf4da5fbac9c9f83a86aa942463c29c7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "guiMessageMenu.h"
#include "debug.h"
#include "serialization.h"
#include <string>
#include <IGUICheckBox.h>
#include <IGUIEditBox.h>
#include <IGUIButton.h>
#include <IGUIStaticText.h>
#include <IGUIFont.h>

#include "gettext.h"

GUIMessageMenu::GUIMessageMenu(gui::IGUIEnvironment* env,
		gui::IGUIElement* parent, s32 id,
		IMenuManager *menumgr,
		std::wstring message_text
):
	GUIModalMenu(env, parent, id, menumgr),
	m_message_text(message_text),
	m_status(false)
{
}

GUIMessageMenu::~GUIMessageMenu()
{
	removeChildren();
}

void GUIMessageMenu::removeChildren()
{
	{
		gui::IGUIElement *e = getElementFromId(256);
		if(e != NULL)
			e->remove();
	}
	{
		gui::IGUIElement *e = getElementFromId(257);
		if(e != NULL)
			e->remove();
	}
}

void GUIMessageMenu::regenerateGui(v2u32 screensize)
{
	/*
		Remove stuff
	*/
	removeChildren();
	
	/*
		Calculate new sizes and positions
	*/
	core::rect<s32> rect(
			screensize.X/2 - 580/2,
			screensize.Y/2 - 300/2,
			screensize.X/2 + 580/2,
			screensize.Y/2 + 300/2
	);
	
	DesiredRect = rect;
	recalculateAbsolutePosition(false);

	v2s32 size = rect.getSize();

	gui::IGUISkin *skin = Environment->getSkin();
	gui::IGUIFont *font = skin->getFont();
	s32 msg_h = font->getDimension(m_message_text.c_str()).Height;
	s32 msg_w = font->getDimension(m_message_text.c_str()).Width;
	if(msg_h > 200)
		msg_h = 200;
	if(msg_w > 540)
		msg_w = 540;

	/*
		Add stuff
	*/
	{
		core::rect<s32> rect(0, 0, msg_w, msg_h);
		rect += v2s32(size.X/2-msg_w/2, size.Y/2-30/2 - msg_h/2);
		Environment->addStaticText(m_message_text.c_str(),
			rect, false, true, this, -1);
	}
	changeCtype("");
	int bw = 140;
	{
		core::rect<s32> rect(0, 0, bw, 30);
		rect = rect + v2s32(size.X/2-bw/2, size.Y/2-30/2+5 + msg_h/2);
		wchar_t* text = wgettext("Proceed");
		gui::IGUIElement *e = 
		Environment->addButton(rect, this, 257,
			text);
		Environment->setFocus(e);
		delete[] text;
	}
	changeCtype("C");
}

void GUIMessageMenu::drawMenu()
{
	gui::IGUISkin* skin = Environment->getSkin();
	if (!skin)
		return;
	video::IVideoDriver* driver = Environment->getVideoDriver();
	
	video::SColor bgcolor(140,0,0,0);
	driver->draw2DRectangle(bgcolor, AbsoluteRect, &AbsoluteClippingRect);

	gui::IGUIElement::draw();
}

bool GUIMessageMenu::OnEvent(const SEvent& event)
{
	if(event.EventType==EET_KEY_INPUT_EVENT)
	{
		if(event.KeyInput.Key==KEY_ESCAPE && event.KeyInput.PressedDown)
		{
			m_status = true;
			quitMenu();
			return true;
		}
		if(event.KeyInput.Key==KEY_RETURN && event.KeyInput.PressedDown)
		{
			m_status = true;
			quitMenu();
			return true;
		}
	}
	if(event.EventType==EET_GUI_EVENT)
	{
		if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
				&& isVisible())
		{
			if(!canTakeFocus(event.GUIEvent.Element))
			{
				dstream<<"GUIMessageMenu: Not allowing focus change."
						<<std::endl;
				// Returning true disables focus change
				return true;
			}
		}
		if(event.GUIEvent.EventType==gui::EGET_BUTTON_CLICKED)
		{
			switch(event.GUIEvent.Caller->getID())
			{
			case 257:
				m_status = true;
				quitMenu();
				return true;
			}
		}
	}

	return Parent ? Parent->OnEvent(event) : false;
}

class="hl kwd">ci_func(ci)->l.p); } static int currentline (lua_State *L, CallInfo *ci) { int pc = currentpc(L, ci); if (pc < 0) return -1; /* only active lua functions have current-line information */ else return getline(ci_func(ci)->l.p, pc); } /* ** this function can be called asynchronous (e.g. during a signal) */ LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count) { if (func == NULL || mask == 0) { /* turn off hooks? */ mask = 0; func = NULL; } L->hook = func; L->basehookcount = count; resethookcount(L); L->hookmask = cast_byte(mask); return 1; } LUA_API lua_Hook lua_gethook (lua_State *L) { return L->hook; } LUA_API int lua_gethookmask (lua_State *L) { return L->hookmask; } LUA_API int lua_gethookcount (lua_State *L) { return L->basehookcount; } LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar) { int status; CallInfo *ci; lua_lock(L); for (ci = L->ci; level > 0 && ci > L->base_ci; ci--) { level--; if (f_isLua(ci)) /* Lua function? */ level -= ci->tailcalls; /* skip lost tail calls */ } if (level == 0 && ci > L->base_ci) { /* level found? */ status = 1; ar->i_ci = cast_int(ci - L->base_ci); } else if (level < 0) { /* level is of a lost tail call? */ status = 1; ar->i_ci = 0; } else status = 0; /* no such level */ lua_unlock(L); return status; } static Proto *getluaproto (CallInfo *ci) { return (isLua(ci) ? ci_func(ci)->l.p : NULL); } static const char *findlocal (lua_State *L, CallInfo *ci, int n) { const char *name; Proto *fp = getluaproto(ci); if (fp && (name = luaF_getlocalname(fp, n, currentpc(L, ci))) != NULL) return name; /* is a local variable in a Lua function */ else { StkId limit = (ci == L->ci) ? L->top : (ci+1)->func; if (limit - ci->base >= n && n > 0) /* is 'n' inside 'ci' stack? */ return "(*temporary)"; else return NULL; } } LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n) { CallInfo *ci = L->base_ci + ar->i_ci; const char *name = findlocal(L, ci, n); lua_lock(L); if (name) luaA_pushobject(L, ci->base + (n - 1)); lua_unlock(L); return name; } LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n) { CallInfo *ci = L->base_ci + ar->i_ci; const char *name = findlocal(L, ci, n); lua_lock(L); if (name) setobjs2s(L, ci->base + (n - 1), L->top - 1); L->top--; /* pop value */ lua_unlock(L); return name; } static void funcinfo (lua_Debug *ar, Closure *cl) { if (cl->c.isC) { ar->source = "=[C]"; ar->linedefined = -1; ar->lastlinedefined = -1; ar->what = "C"; } else { ar->source = getstr(cl->l.p->source); ar->linedefined = cl->l.p->linedefined; ar->lastlinedefined = cl->l.p->lastlinedefined; ar->what = (ar->linedefined == 0) ? "main" : "Lua"; } luaO_chunkid(ar->short_src, ar->source, LUA_IDSIZE); } static void info_tailcall (lua_Debug *ar) { ar->name = ar->namewhat = ""; ar->what = "tail"; ar->lastlinedefined = ar->linedefined = ar->currentline = -1; ar->source = "=(tail call)"; luaO_chunkid(ar->short_src, ar->source, LUA_IDSIZE); ar->nups = 0; } static void collectvalidlines (lua_State *L, Closure *f) { if (f == NULL || f->c.isC) { setnilvalue(L->top); } else { Table *t = luaH_new(L, 0, 0); int *lineinfo = f->l.p->lineinfo; int i; for (i=0; i<f->l.p->sizelineinfo; i++) setbvalue(luaH_setnum(L, t, lineinfo[i]), 1); sethvalue(L, L->top, t); } incr_top(L); } static int auxgetinfo (lua_State *L, const char *what, lua_Debug *ar, Closure *f, CallInfo *ci) { int status = 1; if (f == NULL) { info_tailcall(ar); return status; } for (; *what; what++) { switch (*what) { case 'S': { funcinfo(ar, f); break; } case 'l': { ar->currentline = (ci) ? currentline(L, ci) : -1; break; } case 'u': { ar->nups = f->c.nupvalues; break; } case 'n': { ar->namewhat = (ci) ? getfuncname(L, ci, &ar->name) : NULL; if (ar->namewhat == NULL) { ar->namewhat = ""; /* not found */ ar->name = NULL; } break; } case 'L': case 'f': /* handled by lua_getinfo */ break; default: status = 0; /* invalid option */ } } return status; } LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar) { int status; Closure *f = NULL; CallInfo *ci = NULL; lua_lock(L); if (*what == '>') { StkId func = L->top - 1; luai_apicheck(L, ttisfunction(func)); what++; /* skip the '>' */ f = clvalue(func); L->top--; /* pop function */ } else if (ar->i_ci != 0) { /* no tail call? */ ci = L->base_ci + ar->i_ci; lua_assert(ttisfunction(ci->func)); f = clvalue(ci->func); } status = auxgetinfo(L, what, ar, f, ci); if (strchr(what, 'f')) { if (f == NULL) setnilvalue(L->top); else setclvalue(L, L->top, f); incr_top(L); } if (strchr(what, 'L')) collectvalidlines(L, f); lua_unlock(L); return status; } /* ** {====================================================== ** Symbolic Execution and code checker ** ======================================================= */ #define check(x) if (!(x)) return 0; #define checkjump(pt,pc) check(0 <= pc && pc < pt->sizecode) #define checkreg(pt,reg) check((reg) < (pt)->maxstacksize) static int precheck (const Proto *pt) { check(pt->maxstacksize <= MAXSTACK); check(pt->numparams+(pt->is_vararg & VARARG_HASARG) <= pt->maxstacksize); check(!(pt->is_vararg & VARARG_NEEDSARG) || (pt->is_vararg & VARARG_HASARG)); check(pt->sizeupvalues <= pt->nups); check(pt->sizelineinfo == pt->sizecode || pt->sizelineinfo == 0); check(pt->sizecode > 0 && GET_OPCODE(pt->code[pt->sizecode-1]) == OP_RETURN); return 1; } #define checkopenop(pt,pc) luaG_checkopenop((pt)->code[(pc)+1]) int luaG_checkopenop (Instruction i) { switch (GET_OPCODE(i)) { case OP_CALL: case OP_TAILCALL: case OP_RETURN: case OP_SETLIST: { check(GETARG_B(i) == 0); return 1; } default: return 0; /* invalid instruction after an open call */ } } static int checkArgMode (const Proto *pt, int r, enum OpArgMask mode) { switch (mode) { case OpArgN: check(r == 0); break; case OpArgU: break; case OpArgR: checkreg(pt, r); break; case OpArgK: check(ISK(r) ? INDEXK(r) < pt->sizek : r < pt->maxstacksize); break; } return 1; } static Instruction symbexec (const Proto *pt, int lastpc, int reg) { int pc; int last; /* stores position of last instruction that changed `reg' */ last = pt->sizecode-1; /* points to final return (a `neutral' instruction) */ check(precheck(pt)); for (pc = 0; pc < lastpc; pc++) { Instruction i = pt->code[pc]; OpCode op = GET_OPCODE(i); int a = GETARG_A(i); int b = 0; int c = 0; check(op < NUM_OPCODES); checkreg(pt, a); switch (getOpMode(op)) { case iABC: { b = GETARG_B(i); c = GETARG_C(i); check(checkArgMode(pt, b, getBMode(op))); check(checkArgMode(pt, c, getCMode(op))); break; } case iABx: { b = GETARG_Bx(i); if (getBMode(op) == OpArgK) check(b < pt->sizek); break; } case iAsBx: { b = GETARG_sBx(i); if (getBMode(op) == OpArgR) { int dest = pc+1+b; check(0 <= dest && dest < pt->sizecode); if (dest > 0) { int j; /* check that it does not jump to a setlist count; this is tricky, because the count from a previous setlist may have the same value of an invalid setlist; so, we must go all the way back to the first of them (if any) */ for (j = 0; j < dest; j++) { Instruction d = pt->code[dest-1-j]; if (!(GET_OPCODE(d) == OP_SETLIST && GETARG_C(d) == 0)) break; } /* if 'j' is even, previous value is not a setlist (even if it looks like one) */ check((j&1) == 0); } } break; } } if (testAMode(op)) { if (a == reg) last = pc; /* change register `a' */ } if (testTMode(op)) { check(pc+2 < pt->sizecode); /* check skip */ check(GET_OPCODE(pt->code[pc+1]) == OP_JMP); } switch (op) { case OP_LOADBOOL: { if (c == 1) { /* does it jump? */ check(pc+2 < pt->sizecode); /* check its jump */ check(GET_OPCODE(pt->code[pc+1]) != OP_SETLIST || GETARG_C(pt->code[pc+1]) != 0); } break; } case OP_LOADNIL: { if (a <= reg && reg <= b) last = pc; /* set registers from `a' to `b' */ break; } case OP_GETUPVAL: case OP_SETUPVAL: { check(b < pt->nups); break; } case OP_GETGLOBAL: case OP_SETGLOBAL: { check(ttisstring(&pt->k[b])); break; } case OP_SELF: { checkreg(pt, a+1); if (reg == a+1) last = pc; break; } case OP_CONCAT: { check(b < c); /* at least two operands */ break; } case OP_TFORLOOP: { check(c >= 1); /* at least one result (control variable) */ checkreg(pt, a+2+c); /* space for results */ if (reg >= a+2) last = pc; /* affect all regs above its base */ break; } case OP_FORLOOP: case OP_FORPREP: checkreg(pt, a+3); /* go through */ case OP_JMP: { int dest = pc+1+b; /* not full check and jump is forward and do not skip `lastpc'? */ if (reg != NO_REG && pc < dest && dest <= lastpc) pc += b; /* do the jump */ break; } case OP_CALL: case OP_TAILCALL: { if (b != 0) { checkreg(pt, a+b-1); } c--; /* c = num. returns */ if (c == LUA_MULTRET) { check(checkopenop(pt, pc)); } else if (c != 0) checkreg(pt, a+c-1); if (reg >= a) last = pc; /* affect all registers above base */ break; } case OP_RETURN: { b--; /* b = num. returns */ if (b > 0) checkreg(pt, a+b-1); break; } case OP_SETLIST: { if (b > 0) checkreg(pt, a + b); if (c == 0) { pc++; check(pc < pt->sizecode - 1); } break; } case OP_CLOSURE: { int nup, j; check(b < pt->sizep); nup = pt->p[b]->nups; check(pc + nup < pt->sizecode); for (j = 1; j <= nup; j++) { OpCode op1 = GET_OPCODE(pt->code[pc + j]); check(op1 == OP_GETUPVAL || op1 == OP_MOVE); } if (reg != NO_REG) /* tracing? */ pc += nup; /* do not 'execute' these pseudo-instructions */ break; } case OP_VARARG: { check((pt->is_vararg & VARARG_ISVARARG) && !(pt->is_vararg & VARARG_NEEDSARG)); b--; if (b == LUA_MULTRET) check(checkopenop(pt, pc)); checkreg(pt, a+b-1); break; } default: break; } } return pt->code[last]; } #undef check #undef checkjump #undef checkreg /* }====================================================== */ int luaG_checkcode (const Proto *pt) { return (symbexec(pt, pt->sizecode, NO_REG) != 0); } static const char *kname (Proto *p, int c) { if (ISK(c) && ttisstring(&p->k[INDEXK(c)])) return svalue(&p->k[INDEXK(c)]); else return "?"; } static const char *getobjname (lua_State *L, CallInfo *ci, int stackpos, const char **name) { if (isLua(ci)) { /* a Lua function? */ Proto *p = ci_func(ci)->l.p; int pc = currentpc(L, ci); Instruction i; *name = luaF_getlocalname(p, stackpos+1, pc); if (*name) /* is a local? */ return "local"; i = symbexec(p, pc, stackpos); /* try symbolic execution */ lua_assert(pc != -1); switch (GET_OPCODE(i)) { case OP_GETGLOBAL: { int g = GETARG_Bx(i); /* global index */ lua_assert(ttisstring(&p->k[g])); *name = svalue(&p->k[g]); return "global"; } case OP_MOVE: { int a = GETARG_A(i); int b = GETARG_B(i); /* move from `b' to `a' */ if (b < a) return getobjname(L, ci, b, name); /* get name for `b' */ break; } case OP_GETTABLE: { int k = GETARG_C(i); /* key index */ *name = kname(p, k); return "field"; } case OP_GETUPVAL: { int u = GETARG_B(i); /* upvalue index */ *name = p->upvalues ? getstr(p->upvalues[u]) : "?"; return "upvalue"; } case OP_SELF: { int k = GETARG_C(i); /* key index */ *name = kname(p, k); return "method"; } default: break; } } return NULL; /* no useful name found */ } static const char *getfuncname (lua_State *L, CallInfo *ci, const char **name) { Instruction i; if ((isLua(ci) && ci->tailcalls > 0) || !isLua(ci - 1)) return NULL; /* calling function is not Lua (or is unknown) */ ci--; /* calling function */ i = ci_func(ci)->l.p->code[currentpc(L, ci)]; if (GET_OPCODE(i) == OP_CALL || GET_OPCODE(i) == OP_TAILCALL || GET_OPCODE(i) == OP_TFORLOOP) return getobjname(L, ci, GETARG_A(i), name); else return NULL; /* no useful name can be found */ } /* only ANSI way to check whether a pointer points to an array */ static int isinstack (CallInfo *ci, const TValue *o) { StkId p; for (p = ci->base; p < ci->top; p++) if (o == p) return 1; return 0; } void luaG_typeerror (lua_State *L, const TValue *o, const char *op) { const char *name = NULL; const char *t = luaT_typenames[ttype(o)]; const char *kind = (isinstack(L->ci, o)) ? getobjname(L, L->ci, cast_int(o - L->base), &name) : NULL; if (kind) luaG_runerror(L, "attempt to %s %s " LUA_QS " (a %s value)", op, kind, name, t); else luaG_runerror(L, "attempt to %s a %s value", op, t); } void luaG_concaterror (lua_State *L, StkId p1, StkId p2) { if (ttisstring(p1) || ttisnumber(p1)) p1 = p2; lua_assert(!ttisstring(p1) && !ttisnumber(p1)); luaG_typeerror(L, p1, "concatenate"); } void luaG_aritherror (lua_State *L, const TValue *p1, const TValue *p2) { TValue temp; if (luaV_tonumber(p1, &temp) == NULL) p2 = p1; /* first operand is wrong */ luaG_typeerror(L, p2, "perform arithmetic on"); } int luaG_ordererror (lua_State *L, const TValue *p1, const TValue *p2) { const char *t1 = luaT_typenames[ttype(p1)]; const char *t2 = luaT_typenames[ttype(p2)]; if (t1[2] == t2[2]) luaG_runerror(L, "attempt to compare two %s values", t1); else luaG_runerror(L, "attempt to compare %s with %s", t1, t2); return 0; } static void addinfo (lua_State *L, const char *msg) { CallInfo *ci = L->ci; if (isLua(ci)) { /* is Lua code? */ char buff[LUA_IDSIZE]; /* add file:line information */ int line = currentline(L, ci); luaO_chunkid(buff, getstr(getluaproto(ci)->source), LUA_IDSIZE); luaO_pushfstring(L, "%s:%d: %s", buff, line, msg); } } void luaG_errormsg (lua_State *L) { if (L->errfunc != 0) { /* is there an error handling function? */ StkId errfunc = restorestack(L, L->errfunc); if (!ttisfunction(errfunc)) luaD_throw(L, LUA_ERRERR); setobjs2s(L, L->top, L->top - 1); /* move argument */ setobjs2s(L, L->top - 1, errfunc); /* push function */ incr_top(L); luaD_call(L, L->top - 2, 1); /* call it */ } luaD_throw(L, LUA_ERRRUN); } void luaG_runerror (lua_State *L, const char *fmt, ...) { va_list argp; va_start(argp, fmt); addinfo(L, luaO_pushvfstring(L, fmt, argp)); va_end(argp); luaG_errormsg(L); }