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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* 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 General Public License for more details.
* You should have received a copy of the GNU 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.
*
* $URL$
* $Id$
*
*/
/* Management and drawing operations for the SCI0 menu bar */
/* I currently assume that the hotkey information used in the menu bar is NOT
** used for any actual actions on behalf of the interpreter.
*/
#include "sci/sci.h"
#include "sci/engine/state.h"
#include "sci/gfx/menubar.h"
#include "sci/engine/kernel.h"
#include "sci/gfx/gfx_state_internal.h" // required for GfxPort
namespace Sci {
/* Copies a string into a newly allocated memory part, up to a certain length.
** Parameters: (char *) src: The source string
** (int) length: The maximum length of the string (not counting
** a trailing \0).
** Returns : (char *) The resulting copy, allocated with malloc().
** To free this string, use the free() command.
** See _SCI_MALLOC() for more information if call fails.
*/
char *sci_strndup(const char *src, size_t length) {
assert(src);
size_t rlen = (int)MIN(strlen(src), length) + 1;
char *strres = (char *)malloc(rlen);
assert(strres);
strncpy(strres, src, rlen);
strres[rlen - 1] = 0;
return strres;
}
#define SIZE_INF 32767
Menu::Menu() {
_titleWidth = 0;
_width = 0;
}
MenuItem::MenuItem() {
_type = MENU_TYPE_NORMAL;
_flags = 0;
memset(_said, 0, sizeof(_said));
_saidPos = NULL_REG;
_textPos = NULL_REG;
_modifiers = 0;
_key = 0;
_enabled = 0;
_tag = 0;
}
int Menu::addMenuItem(GfxState *state, MenuType type, const char *left, const char *right,
int font, int key, int modifiers, int tag, reg_t text_pos) {
// Returns the total text size, plus MENU_BOX_CENTER_PADDING if (right != NULL)
MenuItem newItem;
MenuItem *item;
int total_left_size = 0;
int width, height;
item = &newItem;
item->_type = type;
if (type == MENU_TYPE_HBAR) {
_items.push_back(newItem);
return 0;
}
// else assume MENU_TYPE_NORMAL
item->_text = left;
if (right) {
item->_keytext = right;
item->_keytext.trim(); // Remove trailing whitespace
item->_flags = MENU_ATTRIBUTE_FLAGS_KEY;
item->_key = key;
item->_modifiers = modifiers;
} else {
item->_flags = 0;
}
if (right) {
gfxop_get_text_params(state, font, item->_keytext.c_str(), SIZE_INF, &width, &height, 0, NULL, NULL, NULL);
total_left_size = MENU_BOX_CENTER_PADDING + width;
}
item->_enabled = 1;
item->_tag = tag;
item->_textPos = text_pos;
gfxop_get_text_params(state, font, left, SIZE_INF, &width, &height, 0, NULL, NULL, NULL);
_items.push_back(newItem);
return total_left_size + width;
}
void Menubar::addMenu(GfxState *state, const Common::String &title, const Common::String &entries, int font, reg_t entries_base) {
char tracker;
char *left = NULL;
reg_t left_origin = entries_base;
int string_len = 0;
int tag = 0, c_width, max_width = 0;
int height;
Menu menu;
menu._title = title;
gfxop_get_text_params(state, font, title.c_str(), SIZE_INF, &(menu._titleWidth), &height, 0, NULL, NULL, NULL);
const char *entries_p = entries.c_str();
do {
tracker = *entries_p++;
entries_base.offset++;
if (!left) { // Left string not finished?
if (tracker == '=') { // Hit early-SCI tag assignment?
left = sci_strndup(entries_p - string_len - 1, string_len);
tag = atoi(entries_p++);
tracker = *entries_p++;
}
if ((tracker == 0 && string_len > 0) || (tracker == '=') || (tracker == ':')) { // End of entry
MenuType entrytype = MENU_TYPE_NORMAL;
char *inleft;
reg_t beginning;
if (!left)
left = sci_strndup(entries_p - string_len - 1, string_len);
inleft = left;
while (isspace(*inleft))
inleft++; // Seek beginning of actual string
if (!strncmp(inleft, MENU_HBAR_STRING_1, strlen(MENU_HBAR_STRING_1))
|| !strncmp(inleft, MENU_HBAR_STRING_2, strlen(MENU_HBAR_STRING_2))
|| !strncmp(inleft, MENU_HBAR_STRING_3, strlen(MENU_HBAR_STRING_3))) {
entrytype = MENU_TYPE_HBAR; // Horizontal bar
free(left);
left = NULL;
}
beginning = entries_base;
beginning.offset -= string_len + 1;
c_width = menu.addMenuItem(state, entrytype, left, NULL, font, 0, 0, tag, beginning);
if (c_width > max_width)
max_width = c_width;
string_len = 0;
free(left);
left = NULL; // Start over
} else if (tracker == '`') { // Start of right string
if (!left) {
left_origin = entries_base;
left_origin.offset -= string_len + 1;
left = sci_strndup(entries_p - string_len - 1, string_len);
}
string_len = 0; // Continue with the right string
} else
string_len++; // Nothing special
} else { // Left string finished => working on right string
if ((tracker == ':') || (tracker == 0)) { // End of entry
int key, modifiers = 0;
char *right = sci_strndup(entries_p - string_len - 1, string_len);
if (right[0] == '#') {
right[0] = SCI_SPECIAL_CHAR_FUNCTION; // Function key
key = SCI_K_F1 + ((right[1] - '1') << 8);
if (right[1] == '0')
key = SCI_K_F10; // F10
if (right[2] == '=') {
tag = atoi(right + 3);
right[2] = 0;
};
} else if (right[0] == '@') { // Alt key
right[0] = SCI_SPECIAL_CHAR_ALT; // ALT
key = right[1];
modifiers = SCI_EVM_ALT;
if ((key >= 'a') && (key <= 'z'))
right[1] = key - 'a' + 'A';
if (right[2] == '=') {
tag = atoi(right + 3);
right[2] = 0;
}
} else {
if (right[0] == '^') {
right[0] = SCI_SPECIAL_CHAR_CTRL; // Control key - there must be a replacement...
key = right[1];
modifiers = SCI_EVM_CTRL;
if ((key >= 'a') && (key <= 'z'))
right[1] = key - 'a' + 'A';
if (right[2] == '=') {
tag = atoi(right + 3);
right[2] = 0;
}
} else {
key = right[0];
if ((key >= 'a') && (key <= 'z'))
right[0] = key - 'a' + 'A';
if (right[1] == '=') {
tag = atoi(right + 2);
right[1] = 0;
}
}
if ((key >= 'A') && (key <= 'Z'))
key = key - 'A' + 'a'; // Lowercase the key
}
int i = strlen(right);
while (i > 0 && right[--i] == ' ')
right[i] = 0; // Cut off chars to the right
c_width = menu.addMenuItem(state, MENU_TYPE_NORMAL, left, right, font, key,
modifiers, tag, left_origin);
tag = 0;
if (c_width > max_width)
max_width = c_width;
string_len = 0;
free(right);
free(left);
left = NULL; // Start over
} else
string_len++; // continuing entry
} // right string finished
} while (tracker);
menu._width = max_width;
_menus.push_back(menu);
}
bool MenuItem::matchKey(int message, int modifiers) {
if ((_key == message) && ((modifiers & (SCI_EVM_CTRL | SCI_EVM_ALT)) == _modifiers))
return true;
if (message == '\t' && _key == 'i' && ((modifiers & (SCI_EVM_CTRL | SCI_EVM_ALT)) == 0) && _modifiers == SCI_EVM_CTRL)
return true; // Match TAB to ^I
return 0;
}
int Menubar::setAttribute(EngineState *s, int menu_nr, int item_nr, int attribute, reg_t value) {
MenuItem *item;
if ((menu_nr < 0) || (item_nr < 0))
return 1;
if ((menu_nr >= (int)_menus.size()) || (item_nr >= (int)_menus[menu_nr]._items.size()))
return 1;
item = &_menus[menu_nr]._items[item_nr];
switch (attribute) {
case MENU_ATTRIBUTE_SAID:
if (value.segment) {
item->_saidPos = value;
s->segMan->memcpy(item->_said, value, MENU_SAID_SPEC_SIZE); // Copy Said spec
item->_flags |= MENU_ATTRIBUTE_FLAGS_SAID;
} else
item->_flags &= ~MENU_ATTRIBUTE_FLAGS_SAID;
break;
case MENU_ATTRIBUTE_TEXT:
assert(value.segment);
item->_text = s->segMan->getString(value);
item->_textPos = value;
break;
case MENU_ATTRIBUTE_KEY:
item->_keytext.clear();
if (value.segment) {
// FIXME: What happens here if <value> is an extended key? Potential bug. LS
item->_key = value.offset;
item->_modifiers = 0;
item->_keytext = value.offset;
item->_flags |= MENU_ATTRIBUTE_FLAGS_KEY;
if ((item->_key >= 'A') && (item->_key <= 'Z'))
item->_key = item->_key - 'A' + 'a'; // Lowercase the key
} else {
item->_flags &= ~MENU_ATTRIBUTE_FLAGS_KEY;
}
break;
case MENU_ATTRIBUTE_ENABLED:
item->_enabled = value.offset;
break;
case MENU_ATTRIBUTE_TAG:
item->_tag = value.offset;
break;
default:
error("Attempt to set invalid attribute of menu %d, item %d: 0x%04x", menu_nr, item_nr, attribute);
return 1;
}
return 0;
}
reg_t Menubar::getAttribute(int menu_nr, int item_nr, int attribute) const {
if ((menu_nr < 0) || (item_nr < 0))
return make_reg(0, SIGNAL_OFFSET);
if ((menu_nr >= (int)_menus.size()) || (item_nr >= (int)_menus[menu_nr]._items.size()))
return make_reg(0, SIGNAL_OFFSET);
const MenuItem &item = _menus[menu_nr]._items[item_nr];
switch (attribute) {
case MENU_ATTRIBUTE_SAID:
return item._saidPos;
case MENU_ATTRIBUTE_TEXT:
return item._textPos;
case MENU_ATTRIBUTE_KEY:
return make_reg(0, item._key);
case MENU_ATTRIBUTE_ENABLED:
return make_reg(0, item._enabled);
case MENU_ATTRIBUTE_TAG:
return make_reg(0, item._tag);
default:
warning("Attempt to read invalid attribute from menu %d, item %d: 0x%04x", menu_nr, item_nr, attribute);
return make_reg(0, SIGNAL_OFFSET);
}
}
bool Menubar::itemValid(int menu_nr, int item_nr) const {
if ((menu_nr < 0) || (item_nr < 0))
return false;
if ((menu_nr >= (int)_menus.size()) || (item_nr >= (int)_menus[menu_nr]._items.size()))
return false;
const MenuItem &item = _menus[menu_nr]._items[item_nr];
if ((item._type == MENU_TYPE_NORMAL) && item._enabled)
return true;
return false; // May not be selected
}
bool Menubar::mapPointer(const Common::Point &pointerPos, int &menu_nr, int &item_nr, GfxPort *port) const {
if (pointerPos.y <= 10) { // Re-evaulate menu
int x = MENU_LEFT_BORDER;
for (uint i = 0; i < _menus.size(); i++) {
int newx = x + MENU_BORDER_SIZE * 2 + _menus[i]._titleWidth;
if (pointerPos.x < x)
return false;
if (pointerPos.x < newx) {
menu_nr = i;
item_nr = -1;
}
x = newx;
}
} else {
int row = (pointerPos.y / 10) - 1;
if ((menu_nr < 0) || (menu_nr >= (int)_menus.size()))
return true; // No menu
const Menu &menu = _menus[menu_nr]; // Menu is valid, assume that it's popped up
if ((int)menu._items.size() <= row)
return true;
if ((pointerPos.x < port->_bounds.x) || (pointerPos.x > port->_bounds.x + port->_bounds.width))
return true;
if (itemValid(menu_nr, row))
item_nr = row; // Only modify if we'll be hitting a valid element
}
return false;
}
} // End of namespace Sci
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