MUTATIONOFJB: Add font support and conversation widget.

11 files changed, 372 insertions, 2 deletions

diff --git a/engines/mutationofjb/font.cpp b/engines/mutationofjb/font.cpp
new file mode 100644
index 0000000000..235c60a39e
--- /dev/null
+++ b/engines/mutationofjb/font.cpp
@@ -0,0 +1,125 @@
+/* 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.
+ *
+ */
+
+#include "mutationofjb/font.h"
+#include "mutationofjb/encryptedfile.h"
+#include "mutationofjb/util.h"
+#include "common/debug.h"
+
+namespace MutationOfJB {
+
+Font::Font(const Common::String &fileName, int horizSpacing, int vertSpacing) :
+	_horizSpacing(horizSpacing),
+	_vertSpacing(vertSpacing) {
+
+	load(fileName);
+}
+
+bool Font::load(const Common::String &fileName) {
+	EncryptedFile file;
+	file.open(fileName);
+	if (!file.isOpen()) {
+		reportFileMissingError(fileName.c_str());
+		return false;
+	}
+
+	file.seek(0x02D6, SEEK_SET); // Skip header + unknown data (unused palette?).
+
+	uint16 noGlyphs = 0;
+	noGlyphs = file.readUint16LE();
+
+	file.seek(7, SEEK_CUR); // Skip unknown data (0s).
+
+	uint8 maxHeight = 0;
+
+	while (noGlyphs--) {
+		const uint8 character = file.readByte();
+		const uint8 width = file.readByte();
+		const uint8 height = file.readByte();
+
+		Graphics::ManagedSurface &surf = _glyphs[character];
+		surf.create(width, height);
+		for (int h = 0; h < height; ++h) {
+			file.read(surf.getBasePtr(0, h), width);
+		}
+
+		if (height > maxHeight) {
+			maxHeight = height;
+		}
+	}
+
+	if (_vertSpacing == -1) {
+		_vertSpacing = maxHeight;
+	}
+
+	return true;
+}
+
+
+void Font::drawGlyph(uint8 glyph, uint8 baseColor, int16 &x, int16 &y, Graphics::ManagedSurface &surf) {
+	GlyphMap::iterator it = _glyphs.find(glyph);
+	if (it == _glyphs.end()) {
+		warning("Glyph %d not found", glyph);
+		return;
+	}
+
+	Graphics::ManagedSurface &glyphSurface = it->_value;
+
+	Graphics::ManagedSurface tmp(glyphSurface);
+	for (int h = 0; h < tmp.h; ++h) {
+		uint8 *ptr = reinterpret_cast<uint8 *>(tmp.getBasePtr(0, h));
+		for (int w = 0; w < tmp.w; ++w) {
+			if (*ptr != 0) {
+				*ptr = transformColor(baseColor, *ptr);
+			}
+			ptr++;
+		}
+	}
+	surf.transBlitFrom(tmp.rawSurface(), Common::Point(x, y));
+
+	x += glyphSurface.w + _horizSpacing;
+}
+
+void Font::drawString(const Common::String &str, uint8 baseColor, int16 x, int16 y, Graphics::ManagedSurface &surf) {
+	for (uint i = 0; i < str.size(); ++i) {
+		drawGlyph(str[i], baseColor, x, y, surf); // "x" is updated.
+	}
+}
+
+uint8 Font::transformColor(uint8 baseColor, uint8 glyphColor) {
+	return baseColor + glyphColor - 0x10;
+}
+
+SystemFont::SystemFont() : Font("sysfnt.aft", 1, 7) {}
+
+SpeechFont::SpeechFont() : Font("font1.aft", -1, -1) {}
+
+uint8 SpeechFont::transformColor(uint8 baseColor, uint8 glyphColor) {
+	// Hack in original game.
+	if (glyphColor == 0x11) {
+		return 0xC0;
+	}
+
+	return Font::transformColor(baseColor, glyphColor);
+}
+
+}
diff --git a/engines/mutationofjb/font.h b/engines/mutationofjb/font.h
new file mode 100644
index 0000000000..5aa6a4fb78
--- /dev/null
+++ b/engines/mutationofjb/font.h
@@ -0,0 +1,70 @@
+/* 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.
+ *
+ */
+
+#ifndef MUTATIONOFJB_FONT_H
+#define MUTATIONOFJB_FONT_H
+
+#include "common/scummsys.h"
+#include "common/hashmap.h"
+#include "graphics/managed_surface.h"
+
+namespace Common {
+class String;
+}
+
+namespace MutationOfJB {
+
+class Font {
+public:
+	Font(const Common::String &fileName, int horizSpacing, int vertSpacing);
+	virtual ~Font() {}
+	void drawString(const Common::String &str, uint8 baseColor, int16 x, int16 y, Graphics::ManagedSurface &surf);
+
+protected:
+	virtual uint8 transformColor(uint8 baseColor, uint8 glyphColor);
+
+private:
+	void drawGlyph(uint8 glyph, uint8 baseColor, int16 &x, int16 &y, Graphics::ManagedSurface &surf);
+	bool load(const Common::String &fileName);
+
+	int _horizSpacing;
+	int _vertSpacing;
+	typedef Common::HashMap<uint8, Graphics::ManagedSurface> GlyphMap;
+	GlyphMap _glyphs;
+};
+
+class SystemFont : public Font {
+public:
+	SystemFont();
+};
+
+class SpeechFont : public Font {
+public:
+	SpeechFont();
+
+protected:
+	virtual uint8 transformColor(uint8 baseColor, uint8 glyphColor) override;
+};
+
+}
+
+#endif
diff --git a/engines/mutationofjb/game.cpp b/engines/mutationofjb/game.cpp
index af0b76bb7e..d6ab622e99 100644
--- a/engines/mutationofjb/game.cpp
+++ b/engines/mutationofjb/game.cpp
@@ -192,4 +192,12 @@ void Game::setCurrentAction(ActionInfo::Action action) {
 	_currentAction = action;
 }
 
+Font& Game::getSystemFont() {
+	return _systemFont;
+}
+
+Font& Game::getSpeechFont() {
+	return _speechFont;
+}
+
 }
diff --git a/engines/mutationofjb/game.h b/engines/mutationofjb/game.h
index 19cf406168..122c2a1f63 100644
--- a/engines/mutationofjb/game.h
+++ b/engines/mutationofjb/game.h
@@ -25,6 +25,7 @@
 
 #include "common/scummsys.h"
 #include "mutationofjb/script.h"
+#include "mutationofjb/font.h"
 #include "mutationofjb/gui.h"
 
 namespace Common {
@@ -64,6 +65,9 @@ public:
 	ActionInfo::Action getCurrentAction() const;
 	void setCurrentAction(ActionInfo::Action);
 
+	Font& getSystemFont();
+	Font& getSpeechFont();
+
 private:
 	bool loadGameData(bool partB);
 	void runActiveCommand();
@@ -81,6 +85,9 @@ private:
 	ActionInfo::Action _currentAction;
 
 	ScriptExecutionContext _scriptExecCtx;
+
+	SystemFont _systemFont;
+	SpeechFont _speechFont;
 };
 
 }
diff --git a/engines/mutationofjb/gui.cpp b/engines/mutationofjb/gui.cpp
index c7be3559d8..7102407c99 100644
--- a/engines/mutationofjb/gui.cpp
+++ b/engines/mutationofjb/gui.cpp
@@ -30,6 +30,7 @@
 #include "mutationofjb/widgets/widget.h"
 #include "mutationofjb/widgets/inventorywidget.h"
 #include "mutationofjb/widgets/imagewidget.h"
+#include "mutationofjb/widgets/conversationwidget.h"
 #include "common/rect.h"
 #include "graphics/screen.h"
 
@@ -120,6 +121,12 @@ bool Gui::init() {
 		_widgets.push_back(button);
 	}
 
+	const Common::Rect conversationRect(CONVERSATION_X, CONVERSATION_Y, CONVERSATION_X + CONVERSATION_WIDTH, CONVERSATION_Y + CONVERSATION_HEIGHT);
+	const Graphics::Surface conversationSurface =_hudSurfaces[2].getSubArea(conversationRect);
+	_conversationWidget = new ConversationWidget(*this, conversationRect, conversationSurface);
+	_conversationWidget->setVisible(false);
+	_widgets.push_back(_conversationWidget);
+
 	return true;
 }
 
@@ -141,6 +148,10 @@ void Gui::update() {
 	}
 }
 
+ConversationWidget& Gui::getConversationWidget() {
+	return *_conversationWidget;
+}
+
 class InventoryAnimationDecoderCallback : public AnimationDecoderCallback {
 public:
 	InventoryAnimationDecoderCallback(Gui &gui) : _gui(gui) {}
diff --git a/engines/mutationofjb/gui.h b/engines/mutationofjb/gui.h
index 5d8358b47f..d8e1286233 100644
--- a/engines/mutationofjb/gui.h
+++ b/engines/mutationofjb/gui.h
@@ -43,9 +43,21 @@ namespace MutationOfJB {
 class Game;
 class Widget;
 class InventoryWidget;
+class ConversationWidget;
 
 class Gui : public InventoryObserver, public ButtonWidgetCallback {
 public:
+	enum Colors {
+		WHITE = 0xC6,
+		DARKGRAY = 0xC2,
+		LIGHTGRAY = 0xC4,
+		GREEN = 0xC8,
+		ORANGE = 0xCA,
+		DARKBLUE = 0xD6,
+		LIGHTBLUE = 0xDA,
+		BROWN = 0xDC
+	};
+
 	typedef Common::HashMap<Common::String, int> InventoryMap;
 
 	friend class InventoryAnimationDecoderCallback;
@@ -64,6 +76,8 @@ public:
 	virtual void onInventoryChanged() override;
 	virtual void onButtonClicked(ButtonWidget *) override;
 
+	ConversationWidget& getConversationWidget();
+
 private:
 	bool loadInventoryGfx();
 	bool loadHudGfx();
@@ -78,6 +92,7 @@ private:
 	Common::Array<Graphics::Surface> _hudSurfaces;
 
 	InventoryWidget *_inventoryWidget;
+	ConversationWidget *_conversationWidget;
 	Common::Array<Widget *> _widgets;
 };
 
diff --git a/engines/mutationofjb/module.mk b/engines/mutationofjb/module.mk
index 8604d403f0..2fd4123087 100644
--- a/engines/mutationofjb/module.mk
+++ b/engines/mutationofjb/module.mk
@@ -20,6 +20,7 @@ MODULE_OBJS := \
 	commands/saycommand.o \
 	commands/seqcommand.o \
 	widgets/buttonwidget.o \
+	widgets/conversationwidget.o \
 	widgets/imagewidget.o \
 	widgets/inventorywidget.o \
 	widgets/widget.o \
@@ -27,6 +28,7 @@ MODULE_OBJS := \
 	debug.o \
 	detection.o \
 	encryptedfile.o \
+	font.o \
 	game.o \
 	gamedata.o \
 	gui.o \
diff --git a/engines/mutationofjb/widgets/conversationwidget.cpp b/engines/mutationofjb/widgets/conversationwidget.cpp
new file mode 100644
index 0000000000..6196bc672a
--- /dev/null
+++ b/engines/mutationofjb/widgets/conversationwidget.cpp
@@ -0,0 +1,65 @@
+/* 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.
+ *
+ */
+
+#include "mutationofjb/widgets/conversationwidget.h"
+#include "mutationofjb/game.h"
+#include "mutationofjb/gui.h"
+#include "mutationofjb/font.h"
+
+namespace MutationOfJB {
+
+enum {
+	CONVERSATION_LINES_X = 5,
+	CONVERSATION_LINES_Y = 151,
+	CONVERSATION_LINE_HEIGHT = 12
+};
+
+ConversationWidget::ConversationWidget(Gui &gui, const Common::Rect &area, const Graphics::Surface &surface) :
+	Widget(gui, area),
+	_surface(surface) {}
+
+
+void ConversationWidget::setLine(int lineNo, const Common::String &str) {
+	if (lineNo >= CONVERSATION_LINES) {
+		return;
+	}
+
+	_lines[lineNo] = str;
+	markDirty();
+}
+
+void ConversationWidget::_draw(Graphics::ManagedSurface &surface) {
+	surface.blitFrom(_surface, Common::Point(_area.left, _area.top));
+
+	for (int i = 0; i < CONVERSATION_LINES; ++i) {
+		Common::String &line = _lines[i];
+		if (line.empty()) {
+			continue;
+		}
+
+		// TODO: Active line should be Gui::WHITE.
+		_gui.getGame().getSystemFont().drawString(line, Gui::LIGHTGRAY, CONVERSATION_LINES_X, CONVERSATION_LINES_Y + i * CONVERSATION_LINE_HEIGHT, surface);
+	}
+}
+
+}
+
diff --git a/engines/mutationofjb/widgets/conversationwidget.h b/engines/mutationofjb/widgets/conversationwidget.h
new file mode 100644
index 0000000000..0f26a99d3f
--- /dev/null
+++ b/engines/mutationofjb/widgets/conversationwidget.h
@@ -0,0 +1,50 @@
+/* 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.
+ *
+ */
+
+#ifndef MUTATIONOFJB_CONVERSATIONWIDGET_H
+#define MUTATIONOFJB_CONVERSATIONWIDGET_H
+
+#include "mutationofjb/widgets/widget.h"
+#include "graphics/surface.h"
+
+namespace MutationOfJB {
+
+class ConversationWidget : public Widget {
+public:
+	enum { CONVERSATION_LINES = 4 };
+
+	ConversationWidget(Gui &gui, const Common::Rect &area, const Graphics::Surface &surface);
+
+	void setLine(int lineNo, const Common::String &str);
+
+protected:
+	void _draw(Graphics::ManagedSurface &surface);
+
+private:
+
+	Graphics::Surface _surface;
+	Common::String _lines[CONVERSATION_LINES];
+};
+
+}
+
+#endif
diff --git a/engines/mutationofjb/widgets/widget.cpp b/engines/mutationofjb/widgets/widget.cpp
index fea7f6fbe0..5503f625cd 100644
--- a/engines/mutationofjb/widgets/widget.cpp
+++ b/engines/mutationofjb/widgets/widget.cpp
@@ -32,6 +32,17 @@ void Widget::setId(int id) {
 	_id = id;
 }
 
+bool Widget::isVisible() const {
+	return _visible;
+}
+
+void Widget::setVisible(bool visible) {
+	if (!_visible && visible) {
+		markDirty();
+	}
+	_visible = visible;
+}
+
 void Widget::markDirty() {
 	_dirty = true;
 }
@@ -42,7 +53,9 @@ bool Widget::isDirty() const {
 
 void Widget::update(Graphics::ManagedSurface &surface) {
 	if (_dirty) {
-		_draw(surface);
+		if (_visible) {
+			_draw(surface);
+		}
 		_dirty = false;
 	}
 }
diff --git a/engines/mutationofjb/widgets/widget.h b/engines/mutationofjb/widgets/widget.h
index f81d466c1c..ed3a3acd54 100644
--- a/engines/mutationofjb/widgets/widget.h
+++ b/engines/mutationofjb/widgets/widget.h
@@ -40,12 +40,15 @@ class Gui;
 
 class Widget {
 public:
-	Widget(Gui &gui, const Common::Rect &area) : _gui(gui), _area(area), _id(0), _dirty(true) {}
+	Widget(Gui &gui, const Common::Rect &area) : _gui(gui), _area(area), _id(0), _visible(true), _dirty(true) {}
 	virtual ~Widget() {}
 
 	int getId() const;
 	void setId(int id);
 
+	bool isVisible() const;
+	void setVisible(bool visible);
+
 	bool isDirty() const;
 	void markDirty();
 	void update(Graphics::ManagedSurface &);
@@ -57,6 +60,7 @@ protected:
 	Gui &_gui;
 	Common::Rect _area;
 	int _id;
+	bool _visible;
 	bool _dirty;
 };