Initial commit

engines/cge/vmenu.cpp

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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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * This code is based on original Soltys source code
+ * Copyright (c) 1994-1995 Janusz B. Wisniewski and L.K. Avalon
+ */
+
+#include "cge/vmenu.h"
+#include "cge/events.h"
+#include "cge/cge_main.h"
+
+namespace CGE {
+
+MenuBar::MenuBar(CGEEngine *vm, uint16 w) : Talk(vm), _vm(vm) {
+	int h = kFontHigh + 2 * kMenuBarVM;
+	int i = (w += 2 * kMenuBarHM) * h;
+	uint8 *p = (uint8 *)malloc(sizeof(uint8) * i);
+
+	memset(p + w, kPixelTransp, i - 2 * w);
+	memset(p, kMenuBarLT, w);
+	memset(p + i - w, kMenuBarRB, w);
+	uint8 *p1 = p;
+	uint8 *p2 = p + i - 1;
+	for (int cpt = 0; cpt < h; cpt++) {
+		*p1 = kMenuBarLT;
+		*p2 = kMenuBarRB;
+		p1 += w;
+		p2 -= w;
+	}
+
+	_ts = new BitmapPtr[2];
+	_ts[0] = new Bitmap(_vm, w, h, p);
+	_ts[1] = nullptr;
+	setShapeList(_ts);
+
+	_flags._slav = true;
+	_flags._tran = true;
+	_flags._kill = true;
+	_flags._bDel = true;
+}
+
+Vmenu *Vmenu::_addr = nullptr;
+int Vmenu::_recent = -1;
+
+Vmenu::Vmenu(CGEEngine *vm, Choice *list, int x, int y)
+	: Talk(vm, VMGather(list), kTBRect), _menu(list), _bar(nullptr), _vmgt(nullptr), _vm(vm) {
+	Choice *cp;
+
+	_addr = this;
+	_items = 0;
+	for (cp = list; cp->_text; cp++)
+		_items++;
+	_flags._bDel = true;
+	_flags._kill = true;
+	if (x < 0 || y < 0)
+		center();
+	else
+		gotoxy(x - _w / 2, y - (kTextVMargin + kFontHigh / 2));
+	_vm->_vga->_showQ->insert(this, _vm->_vga->_showQ->last());
+	_bar = new MenuBar(_vm, _w - 2 * kTextHMargin);
+	_bar->gotoxy(_x + kTextHMargin - kMenuBarHM, _y + kTextVMargin - kMenuBarVM);
+	_vm->_vga->_showQ->insert(_bar, _vm->_vga->_showQ->last());
+}
+
+Vmenu::~Vmenu() {
+	_addr = nullptr;
+}
+
+#define CALL_MEMBER_FN(object,ptrToMember)  ((object).*(ptrToMember))
+
+void Vmenu::touch(uint16 mask, int x, int y) {
+	if (!_items)
+		return;
+
+	Sprite::touch(mask, x, y);
+
+	y -= kTextVMargin - 1;
+	int n = 0;
+	bool ok = false;
+	uint16 h = kFontHigh + kTextLineSpace;
+
+	if (y >= 0) {
+		n = y / h;
+		if (n < _items)
+			ok = (x >= kTextHMargin && x < _w - kTextHMargin/* && y % h < FONT_HIG*/);
+		else
+			n = _items - 1;
+	}
+
+	_bar->gotoxy(_x + kTextHMargin - kMenuBarHM, _y + kTextVMargin + n * h - kMenuBarVM);
+
+	if (ok && (mask & kMouseLeftUp)) {
+		_items = 0;
+		_vm->_commandHandlerTurbo->addCommand(kCmdKill, -1, 0, this);
+		_recent = n;
+		assert(_menu[n].Proc);
+		CALL_MEMBER_FN(*_vm, _menu[n].Proc)();
+	}
+}
+
+char *Vmenu::VMGather(Choice *list) {
+	Choice *cp;
+	int len = 0, h = 0;
+
+	for (cp = list; cp->_text; cp++) {
+		len += strlen(cp->_text);
+		h++;
+	}
+	len += h;
+	_vmgt = new char[len];
+	if (_vmgt) {
+		*_vmgt = '\0';
+		for (cp = list; cp->_text; cp++) {
+			if (*_vmgt)
+				Common::strcat_s(_vmgt, len, "|");
+			Common::strcat_s(_vmgt, len, cp->_text);
+			h++;
+		}
+	}
+	return _vmgt;
+}
+} // End of namespace CGE