Initial commit

engines/crab/ui/ProgressBar.cpp

@@ -0,0 +1,118 @@
+/* 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 the CRAB engine
+ *
+ * Copyright (c) Arvind Raja Yadav
+ *
+ * Licensed under MIT
+ *
+ */
+
+#include "crab/ui/ProgressBar.h"
+
+namespace Crab {
+
+using namespace pyrodactyl::ui;
+using namespace pyrodactyl::image;
+
+void ProgressBar::load(rapidxml::xml_node<char> *node) {
+	ClipButton::load(node);
+	loadNum(_notifyRate, "notify", node);
+
+	if (nodeValid("effect", node)) {
+		rapidxml::xml_node<char> *effnode = node->first_node("effect");
+		loadImgKey(_inc, "inc", effnode);
+		loadImgKey(_dec, "dec", effnode);
+		_offset.load(effnode);
+	}
+
+	if (nodeValid("desc", node)) {
+		rapidxml::xml_node<char> *descnode = node->first_node("desc");
+		for (rapidxml::xml_node<char> *n = descnode->first_node("above"); n != nullptr; n = n->next_sibling("above"))
+			_ct.push_back(n);
+	}
+}
+
+void ProgressBar::draw(const int &value, const int &max) {
+	// We don't want divide by zero errors
+	if (max == 0)
+		return;
+
+	// Figure out which text to draw as caption
+	for (auto &i : _ct)
+		if (value > i._val) {
+			_caption._text = i._text;
+			break;
+		}
+
+	// If we don't have to draw animations for changing value, just draw the bar
+	if (!_changed) {
+		_clip.w = (g_engine->_imageManager->getTexture(_img._normal).w() * value) / max;
+		ClipButton::draw();
+	} else {
+		_clip.w = (g_engine->_imageManager->getTexture(_img._normal).w() * _cur) / max;
+		ClipButton::draw();
+
+		switch (_type) {
+		case INCREASE:
+			g_engine->_imageManager->draw(x + _clip.w + _offset.x, y + _offset.y, _inc);
+			if (_timer.targetReached()) {
+				_cur++;
+				_timer.start();
+			}
+			break;
+		case DECREASE:
+			g_engine->_imageManager->draw(x + _clip.w + _offset.x, y + _offset.y, _dec);
+			if (_timer.targetReached()) {
+				_cur--;
+				_timer.start();
+			}
+			break;
+		default:
+			break;
+		}
+
+		if (_cur == value)
+			_changed = false;
+	}
+}
+
+void ProgressBar::effect(const int &value, const int &prev) {
+	_old = prev;
+	_cur = prev;
+
+	if (value > prev) {
+		_changed = true;
+		_type = INCREASE;
+		_timer.target(_notifyRate * (value - prev));
+	} else if (value < prev) {
+		_changed = true;
+		_type = DECREASE;
+		_timer.target(_notifyRate * (prev - value));
+	} else {
+		_changed = false;
+		_type = NONE;
+	}
+}
+
+} // End of namespace Crab