Formspec: add hypertext element

4 files changed, 163 insertions, 50 deletions

diff --git a/src/client/fontengine.cpp b/src/client/fontengine.cpp
index 858d6780e..8120f82df 100644
--- a/src/client/fontengine.cpp
+++ b/src/client/fontengine.cpp
@@ -41,6 +41,11 @@ static void font_setting_changed(const std::string &name, void *userdata)
 	g_fontengine->readSettings();
 }
 
+unsigned int get_font_cache_index(FontMode mode, bool bold = false, bool italic = false)
+{
+	return (mode << 2) | (bold << 1) | italic;
+}
+
 /******************************************************************************/
 FontEngine::FontEngine(Settings* main_settings, gui::IGUIEnvironment* env) :
 	m_settings(main_settings),
@@ -59,7 +64,12 @@ FontEngine::FontEngine(Settings* main_settings, gui::IGUIEnvironment* env) :
 
 	if (m_currentMode == FM_Standard) {
 		m_settings->registerChangedCallback("font_size", font_setting_changed, NULL);
+		m_settings->registerChangedCallback("font_bold", font_setting_changed, NULL);
+		m_settings->registerChangedCallback("font_italic", font_setting_changed, NULL);
 		m_settings->registerChangedCallback("font_path", font_setting_changed, NULL);
+		m_settings->registerChangedCallback("font_path_bold", font_setting_changed, NULL);
+		m_settings->registerChangedCallback("font_path_italic", font_setting_changed, NULL);
+		m_settings->registerChangedCallback("font_path_bolditalic", font_setting_changed, NULL);
 		m_settings->registerChangedCallback("font_shadow", font_setting_changed, NULL);
 		m_settings->registerChangedCallback("font_shadow_alpha", font_setting_changed, NULL);
 	}
@@ -96,7 +106,8 @@ void FontEngine::cleanCache()
 }
 
 /******************************************************************************/
-irr::gui::IGUIFont* FontEngine::getFont(unsigned int font_size, FontMode mode)
+irr::gui::IGUIFont *FontEngine::getFont(unsigned int font_size, FontMode mode,
+	bool bold, bool italic)
 {
 	if (mode == FM_Unspecified) {
 		mode = m_currentMode;
@@ -110,22 +121,30 @@ irr::gui::IGUIFont* FontEngine::getFont(unsigned int font_size, FontMode mode)
 	if (font_size == FONT_SIZE_UNSPECIFIED)
 		font_size = m_default_size[mode];
 
-	const auto &cache = m_font_cache[mode];
+	unsigned int cache_index = get_font_cache_index(mode, bold, italic);
+
+	const auto &cache = m_font_cache[cache_index];
+
 	if (cache.find(font_size) == cache.end()) {
 		if (mode == FM_Simple || mode == FM_SimpleMono)
 			initSimpleFont(font_size, mode);
 		else
-			initFont(font_size, mode);
+			initFont(font_size, mode, bold, italic);
 	}
 
+	if (m_font_cache[cache_index].find(font_size) ==
+			m_font_cache[cache_index].end())
+		initFont(font_size, mode, bold, italic);
+
 	const auto &font = cache.find(font_size);
 	return font != cache.end() ? font->second : nullptr;
 }
 
 /******************************************************************************/
-unsigned int FontEngine::getTextHeight(unsigned int font_size, FontMode mode)
+unsigned int FontEngine::getTextHeight(unsigned int font_size, FontMode mode,
+	bool bold, bool italic)
 {
-	irr::gui::IGUIFont* font = getFont(font_size, mode);
+	irr::gui::IGUIFont *font = getFont(font_size, mode, bold, italic);
 
 	// use current skin font as fallback
 	if (font == NULL) {
@@ -138,9 +157,9 @@ unsigned int FontEngine::getTextHeight(unsigned int font_size, FontMode mode)
 
 /******************************************************************************/
 unsigned int FontEngine::getTextWidth(const std::wstring& text,
-		unsigned int font_size, FontMode mode)
+		unsigned int font_size, FontMode mode, bool bold, bool italic)
 {
-	irr::gui::IGUIFont* font = getFont(font_size, mode);
+	irr::gui::IGUIFont *font = getFont(font_size, mode, bold, italic);
 
 	// use current skin font as fallback
 	if (font == NULL) {
@@ -153,9 +172,10 @@ unsigned int FontEngine::getTextWidth(const std::wstring& text,
 
 
 /** get line height for a specific font (including empty room between lines) */
-unsigned int FontEngine::getLineHeight(unsigned int font_size, FontMode mode)
+unsigned int FontEngine::getLineHeight(unsigned int font_size, FontMode mode,
+	bool bold, bool italic)
 {
-	irr::gui::IGUIFont* font = getFont(font_size, mode);
+	irr::gui::IGUIFont *font = getFont(font_size, mode, bold, italic);
 
 	// use current skin font as fallback
 	if (font == NULL) {
@@ -183,6 +203,10 @@ void FontEngine::readSettings()
 
 		m_currentMode = is_yes(gettext("needs_fallback_font")) ?
 				FM_Fallback : FM_Standard;
+
+		m_default_bold = m_settings->getBool("font_bold");
+		m_default_italic = m_settings->getBool("font_italic");
+
 	} else {
 		m_currentMode = FM_Simple;
 	}
@@ -226,14 +250,17 @@ void FontEngine::updateFontCache()
 }
 
 /******************************************************************************/
-void FontEngine::initFont(unsigned int basesize, FontMode mode)
+void FontEngine::initFont(unsigned int basesize, FontMode mode,
+	bool bold, bool italic)
 {
 	assert(mode != FM_Unspecified);
 	assert(basesize != FONT_SIZE_UNSPECIFIED);
 
-	if (m_font_cache[mode].find(basesize) != m_font_cache[mode].end())
-		return;
+	int cache_index = get_font_cache_index(mode, bold, italic);
 
+	if (m_font_cache[cache_index].find(basesize) !=
+			m_font_cache[cache_index].end())
+		return;
 
 	std::string setting_prefix = "";
 
@@ -249,8 +276,13 @@ void FontEngine::initFont(unsigned int basesize, FontMode mode)
 			break;
 	}
 
+	std::string setting_suffix = (bold) ?
+			((italic) ? "_bold_italic" : "_bold") :
+			((italic) ? "_italic" : "");
+
 	u32 size = std::floor(RenderingEngine::getDisplayDensity() *
 			m_settings->getFloat("gui_scaling") * basesize);
+
 	if (size == 0) {
 		errorstream << "FontEngine: attempt to use font size 0" << std::endl;
 		errorstream << "  display density: " << RenderingEngine::getDisplayDensity() << std::endl;
@@ -260,10 +292,14 @@ void FontEngine::initFont(unsigned int basesize, FontMode mode)
 	u16 font_shadow       = 0;
 	u16 font_shadow_alpha = 0;
 	g_settings->getU16NoEx(setting_prefix + "font_shadow", font_shadow);
-	g_settings->getU16NoEx(setting_prefix + "font_shadow_alpha", font_shadow_alpha);
+	g_settings->getU16NoEx(setting_prefix + "font_shadow_alpha",
+			font_shadow_alpha);
+
+	std::string wanted_font_path;
+	wanted_font_path = g_settings->get(setting_prefix + "font_path" + setting_suffix);
 
 	std::string fallback_settings[] = {
-		m_settings->get(setting_prefix + "font_path"),
+		wanted_font_path,
 		m_settings->get("fallback_font_path"),
 		m_settings->getDefault(setting_prefix + "font_path")
 	};
@@ -275,7 +311,7 @@ void FontEngine::initFont(unsigned int basesize, FontMode mode)
 				font_shadow_alpha);
 
 		if (font) {
-			m_font_cache[mode][basesize] = font;
+			m_font_cache[cache_index][basesize] = font;
 			return;
 		}
 
@@ -340,7 +376,7 @@ void FontEngine::initSimpleFont(unsigned int basesize, FontMode mode)
 			path.str(""); // Clear
 			path << basename << "_" << (size + offset * sign) << ext;
 
-			if (!fs::PathExists(path.str())) 
+			if (!fs::PathExists(path.str()))
 				continue;
 
 			font = m_env->getFont(path.str().c_str());
@@ -365,5 +401,5 @@ void FontEngine::initSimpleFont(unsigned int basesize, FontMode mode)
 	}
 
 	if (font)
-		m_font_cache[mode][basesize] = font;
+		m_font_cache[get_font_cache_index(mode)][basesize] = font;
 }
diff --git a/src/client/fontengine.h b/src/client/fontengine.h
index 62aa71897..ecffc7660 100644
--- a/src/client/fontengine.h
+++ b/src/client/fontengine.h
@@ -48,29 +48,62 @@ public:
 	~FontEngine();
 
 	/** get Font */
-	irr::gui::IGUIFont* getFont(unsigned int font_size=FONT_SIZE_UNSPECIFIED,
-			FontMode mode=FM_Unspecified);
+	irr::gui::IGUIFont *getFont(unsigned int font_size, FontMode mode,
+			bool bold, bool italic);
+
+	irr::gui::IGUIFont *getFont(unsigned int font_size=FONT_SIZE_UNSPECIFIED,
+			FontMode mode=FM_Unspecified)
+	{
+		return getFont(font_size, mode, m_default_bold, m_default_italic);
+	}
 
 	/** get text height for a specific font */
-	unsigned int getTextHeight(unsigned int font_size=FONT_SIZE_UNSPECIFIED,
-			FontMode mode=FM_Unspecified);
+	unsigned int getTextHeight(unsigned int font_size, FontMode mode,
+			bool bold, bool italic);
 
 	/** get text width if a text for a specific font */
-	unsigned int getTextWidth(const std::string& text,
+	unsigned int getTextHeight(
 			unsigned int font_size=FONT_SIZE_UNSPECIFIED,
 			FontMode mode=FM_Unspecified)
 	{
-		return getTextWidth(utf8_to_wide(text));
+		return getTextHeight(font_size, mode, m_default_bold, m_default_italic);
 	}
 
+	unsigned int getTextWidth(const std::wstring& text,
+			unsigned int font_size, FontMode mode, bool bold, bool italic);
+
 	/** get text width if a text for a specific font */
 	unsigned int getTextWidth(const std::wstring& text,
 			unsigned int font_size=FONT_SIZE_UNSPECIFIED,
-			FontMode mode=FM_Unspecified);
+			FontMode mode=FM_Unspecified)
+	{
+		return getTextWidth(text, font_size, mode, m_default_bold,
+				m_default_italic);
+	}
+
+	unsigned int getTextWidth(const std::string& text,
+			unsigned int font_size, FontMode mode, bool bold, bool italic)
+	{
+		return getTextWidth(utf8_to_wide(text), font_size, mode, bold, italic);
+	}
+
+	unsigned int getTextWidth(const std::string& text,
+			unsigned int font_size=FONT_SIZE_UNSPECIFIED,
+			FontMode mode=FM_Unspecified)
+	{
+		return getTextWidth(utf8_to_wide(text), font_size, mode, m_default_bold,
+				m_default_italic);
+	}
 
 	/** get line height for a specific font (including empty room between lines) */
+	unsigned int getLineHeight(unsigned int font_size, FontMode mode, bool bold,
+			bool italic);
+
 	unsigned int getLineHeight(unsigned int font_size=FONT_SIZE_UNSPECIFIED,
-			FontMode mode=FM_Unspecified);
+			FontMode mode=FM_Unspecified)
+	{
+		return getLineHeight(font_size, mode, m_default_bold, m_default_italic);
+	}
 
 	/** get default font size */
 	unsigned int getDefaultFontSize();
@@ -86,7 +119,11 @@ private:
 	void updateFontCache();
 
 	/** initialize a new font */
-	void initFont(unsigned int basesize, FontMode mode=FM_Unspecified);
+	void initFont(
+		unsigned int basesize,
+		FontMode mode,
+		bool bold,
+		bool italic);
 
 	/** initialize a font without freetype */
 	void initSimpleFont(unsigned int basesize, FontMode mode);
@@ -104,11 +141,15 @@ private:
 	gui::IGUIEnvironment* m_env = nullptr;
 
 	/** internal storage for caching fonts of different size */
-	std::map<unsigned int, irr::gui::IGUIFont*> m_font_cache[FM_MaxMode];
+	std::map<unsigned int, irr::gui::IGUIFont*> m_font_cache[FM_MaxMode << 2];
 
 	/** default font size to use */
 	unsigned int m_default_size[FM_MaxMode];
 
+	/** default bold and italic */
+	bool m_default_bold;
+	bool m_default_italic;
+
 	/** current font engine mode */
 	FontMode m_currentMode = FM_Standard;
 
diff --git a/src/client/hud.cpp b/src/client/hud.cpp
index 291d03816..304a3ab16 100644
--- a/src/client/hud.cpp
+++ b/src/client/hud.cpp
@@ -608,23 +608,24 @@ void Hud::resizeHotbar() {
 
 struct MeshTimeInfo {
 	u64 time;
-	scene::IMesh *mesh;
+	scene::IMesh *mesh = nullptr;
 };
 
-void drawItemStack(video::IVideoDriver *driver,
+void drawItemStack(
+		video::IVideoDriver *driver,
 		gui::IGUIFont *font,
 		const ItemStack &item,
 		const core::rect<s32> &rect,
 		const core::rect<s32> *clip,
 		Client *client,
-		ItemRotationKind rotation_kind)
+		ItemRotationKind rotation_kind,
+		const v3s16 &angle,
+		const v3s16 &rotation_speed)
 {
 	static MeshTimeInfo rotation_time_infos[IT_ROT_NONE];
-	static thread_local bool enable_animations =
-		g_settings->getBool("inventory_items_animations");
 
 	if (item.empty()) {
-		if (rotation_kind < IT_ROT_NONE) {
+		if (rotation_kind < IT_ROT_NONE && rotation_kind != IT_ROT_OTHER) {
 			rotation_time_infos[rotation_kind].mesh = NULL;
 		}
 		return;
@@ -639,7 +640,7 @@ void drawItemStack(video::IVideoDriver *driver,
 		s32 delta = 0;
 		if (rotation_kind < IT_ROT_NONE) {
 			MeshTimeInfo &ti = rotation_time_infos[rotation_kind];
-			if (mesh != ti.mesh) {
+			if (mesh != ti.mesh && rotation_kind != IT_ROT_OTHER) {
 				ti.mesh = mesh;
 				ti.time = porting::getTimeMs();
 			} else {
@@ -677,9 +678,16 @@ void drawItemStack(video::IVideoDriver *driver,
 		core::matrix4 matrix;
 		matrix.makeIdentity();
 
+		static thread_local bool enable_animations =
+			g_settings->getBool("inventory_items_animations");
+
 		if (enable_animations) {
-			float timer_f = (float) delta / 5000.0;
-			matrix.setRotationDegrees(core::vector3df(0, 360 * timer_f, 0));
+			float timer_f = (float) delta / 5000.f;
+			matrix.setRotationDegrees(v3f(
+				angle.X + rotation_speed.X * 3.60f * timer_f,
+				angle.Y + rotation_speed.Y * 3.60f * timer_f,
+				angle.Z + rotation_speed.Z * 3.60f * timer_f)
+			);
 		}
 
 		driver->setTransform(video::ETS_WORLD, matrix);
@@ -695,15 +703,18 @@ void drawItemStack(video::IVideoDriver *driver,
 			// because these meshes are not buffered.
 			assert(buf->getHardwareMappingHint_Vertex() == scene::EHM_NEVER);
 			video::SColor c = basecolor;
+
 			if (imesh->buffer_colors.size() > j) {
 				ItemPartColor *p = &imesh->buffer_colors[j];
 				if (p->override_base)
 					c = p->color;
 			}
+
 			if (imesh->needs_shading)
 				colorizeMeshBuffer(buf, &c);
 			else
 				setMeshBufferColor(buf, c);
+
 			video::SMaterial &material = buf->getMaterial();
 			material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 			material.Lighting = false;
@@ -726,12 +737,12 @@ void drawItemStack(video::IVideoDriver *driver,
 		}
 	}
 
-	if(def.type == ITEM_TOOL && item.wear != 0)
-	{
+	if (def.type == ITEM_TOOL && item.wear != 0) {
 		// Draw a progressbar
-		float barheight = rect.getHeight()/16;
-		float barpad_x = rect.getWidth()/16;
-		float barpad_y = rect.getHeight()/16;
+		float barheight = rect.getHeight() / 16;
+		float barpad_x = rect.getWidth() / 16;
+		float barpad_y = rect.getHeight() / 16;
+
 		core::rect<s32> progressrect(
 			rect.UpperLeftCorner.X + barpad_x,
 			rect.LowerRightCorner.Y - barpad_y - barheight,
@@ -739,18 +750,19 @@ void drawItemStack(video::IVideoDriver *driver,
 			rect.LowerRightCorner.Y - barpad_y);
 
 		// Shrink progressrect by amount of tool damage
-		float wear = item.wear / 65535.0;
+		float wear = item.wear / 65535.0f;
 		int progressmid =
 			wear * progressrect.UpperLeftCorner.X +
-			(1-wear) * progressrect.LowerRightCorner.X;
+			(1 - wear) * progressrect.LowerRightCorner.X;
 
 		// Compute progressbar color
 		//   wear = 0.0: green
 		//   wear = 0.5: yellow
 		//   wear = 1.0: red
-		video::SColor color(255,255,255,255);
+		video::SColor color(255, 255, 255, 255);
 		int wear_i = MYMIN(std::floor(wear * 600), 511);
 		wear_i = MYMIN(wear_i + 10, 511);
+
 		if (wear_i <= 255)
 			color.set(255, wear_i, 255, 0);
 		else
@@ -760,18 +772,17 @@ void drawItemStack(video::IVideoDriver *driver,
 		progressrect2.LowerRightCorner.X = progressmid;
 		driver->draw2DRectangle(color, progressrect2, clip);
 
-		color = video::SColor(255,0,0,0);
+		color = video::SColor(255, 0, 0, 0);
 		progressrect2 = progressrect;
 		progressrect2.UpperLeftCorner.X = progressmid;
 		driver->draw2DRectangle(color, progressrect2, clip);
 	}
 
-	if(font != NULL && item.count >= 2)
-	{
+	if (font != NULL && item.count >= 2) {
 		// Get the item count as a string
 		std::string text = itos(item.count);
 		v2u32 dim = font->getDimension(utf8_to_wide(text).c_str());
-		v2s32 sdim(dim.X,dim.Y);
+		v2s32 sdim(dim.X, dim.Y);
 
 		core::rect<s32> rect2(
 			/*rect.UpperLeftCorner,
@@ -780,10 +791,23 @@ void drawItemStack(video::IVideoDriver *driver,
 			sdim
 		);
 
-		video::SColor bgcolor(128,0,0,0);
+		video::SColor bgcolor(128, 0, 0, 0);
 		driver->draw2DRectangle(bgcolor, rect2, clip);
 
-		video::SColor color(255,255,255,255);
+		video::SColor color(255, 255, 255, 255);
 		font->draw(text.c_str(), rect2, color, false, false, clip);
 	}
 }
+
+void drawItemStack(
+		video::IVideoDriver *driver,
+		gui::IGUIFont *font,
+		const ItemStack &item,
+		const core::rect<s32> &rect,
+		const core::rect<s32> *clip,
+		Client *client,
+		ItemRotationKind rotation_kind)
+{
+	drawItemStack(driver, font, item, rect, clip, client, rotation_kind,
+		v3s16(0, 0, 0), v3s16(0, 100, 0));
+}
diff --git a/src/client/hud.h b/src/client/hud.h
index 693d2adee..d9b5e0686 100644
--- a/src/client/hud.h
+++ b/src/client/hud.h
@@ -122,6 +122,7 @@ enum ItemRotationKind
 	IT_ROT_SELECTED,
 	IT_ROT_HOVERED,
 	IT_ROT_DRAGGED,
+	IT_ROT_OTHER,
 	IT_ROT_NONE, // Must be last, also serves as number
 };
 
@@ -133,4 +134,15 @@ void drawItemStack(video::IVideoDriver *driver,
 		Client *client,
 		ItemRotationKind rotation_kind);
 
+void drawItemStack(
+		video::IVideoDriver *driver,
+		gui::IGUIFont *font,
+		const ItemStack &item,
+		const core::rect<s32> &rect,
+		const core::rect<s32> *clip,
+		Client *client,
+		ItemRotationKind rotation_kind,
+		const v3s16 &angle,
+		const v3s16 &rotation_speed);
+
 #endif