Initial commit

gui/ThemeEval.h

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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/>.
+ *
+ */
+
+#ifndef GUI_THEME_EVAL_H
+#define GUI_THEME_EVAL_H
+
+#include "common/scummsys.h"
+#include "common/hashmap.h"
+#include "common/hash-str.h"
+#include "common/stack.h"
+#include "common/str.h"
+#include "common/textconsole.h"
+#include "graphics/font.h"
+
+#include "gui/ThemeLayout.h"
+
+namespace GUI {
+
+class ThemeEval {
+
+	typedef Common::HashMap<Common::String, int> VariablesMap;
+	typedef Common::HashMap<Common::String, ThemeLayout *> LayoutsMap;
+
+public:
+	ThemeEval() : _scaleFactor(1.0f) {
+		buildBuiltinVars();
+	}
+
+	~ThemeEval();
+
+	void buildBuiltinVars();
+
+	int getVar(const Common::String &s) {
+		if (_vars.contains(s))
+			return _vars[s];
+
+		if (_builtin.contains(s))
+			return _builtin[s];
+
+		error("CRITICAL: Missing variable: '%s'", s.c_str());
+		return -13375; //EVAL_UNDEF_VAR
+	}
+
+	int getVar(const Common::String &s, int def) {
+		if (_vars.contains(s))
+			return _vars[s];
+
+		if (_builtin.contains(s))
+			return _builtin[s];
+
+		return def;
+	}
+
+	void setScaleFactor(float s) { _scaleFactor = s; }
+
+	void setVar(const Common::String &name, int val) { _vars[name] = val; }
+
+	bool hasVar(const Common::String &name) { return _vars.contains(name) || _builtin.contains(name); }
+
+	ThemeEval &addDialog(const Common::String &name, const Common::String &overlays, int16 maxWidth = -1, int16 maxHeight = -1, int inset = 0);
+	ThemeEval &addLayout(ThemeLayout::LayoutType type, int spacing = -1, ThemeLayout::ItemAlign itemAlign = ThemeLayout::kItemAlignStart);
+	ThemeEval &addWidget(const Common::String &name, const Common::String &type, int w = -1, int h = -1, Graphics::TextAlign align = Graphics::kTextAlignStart, bool useRTL = true);
+	ThemeEval &addImportedLayout(const Common::String &name);
+	ThemeEval &addSpace(int size = -1);
+
+	ThemeEval &addPadding(int16 l, int16 r, int16 t, int16 b);
+
+	ThemeEval &closeLayout() { _curLayout.pop(); return *this; }
+	ThemeEval &closeDialog() { _curLayout.pop(); _curDialog.clear(); return *this; }
+
+	bool hasDialog(const Common::String &name);
+
+	void reflowDialogLayout(const Common::String &name, Widget *widgetChain);
+	bool getWidgetData(const Common::String &widget, int16 &x, int16 &y, int16 &w, int16 &h);
+	bool getWidgetData(const Common::String &widget, int16 &x, int16 &y, int16 &w, int16 &h, bool &useRTL);
+
+	Graphics::TextAlign getWidgetTextHAlign(const Common::String &widget);
+
+#ifdef LAYOUT_DEBUG_DIALOG
+	void debugDraw(Graphics::ManagedSurface *screen, const Graphics::Font *font) {
+		if (_layouts.contains(LAYOUT_DEBUG_DIALOG)) {
+			_layouts[LAYOUT_DEBUG_DIALOG]->debugDraw(screen, font);
+		} else {
+			Common::String list;
+
+			for (auto l = _layouts.begin(); l != _layouts.end(); ++l)
+				list += " " + l->_key;
+
+			warning("debugDraw: Unknown layout %s\nList:%s", LAYOUT_DEBUG_DIALOG, list.c_str());
+		}
+	}
+#endif
+
+	void reset();
+
+private:
+	VariablesMap _vars;
+	VariablesMap _builtin;
+
+	LayoutsMap _layouts;
+	Common::Stack<ThemeLayout *> _curLayout;
+	Common::String _curDialog;
+
+	float _scaleFactor;
+};
+
+} // End of namespace GUI
+
+#endif