Bug fixes and a few minor requested changes.

See changelog.txt (August 13, part 2) for specifics.

README.md

@@ -6,6 +6,8 @@ A simple front-end for emulators made with SDL, designed for controller navigati
 RetroArch for the Raspberry Pi can be found here: https://github.com/ToadKing/RetroArch-Rpi
 I'm not associated with RetroArch in any way!
 
+If you're lazy, a cool guy named petrockblog made a script which automatically installs RetroArch, its cores, and ES: https://github.com/petrockblog/RetroPie-Setup
+
 Building
 ========
 
@@ -51,6 +53,7 @@ The path element should be the absolute path of the ROM. Special characters SHOU
 
 The switch `--gamelist-only` can be used to skip automatic searching, and only display games defined in the system's gamelist.xml.
 
+A cool guy named Pendor made a scraper which automatically generates a gamelist.xml for you, with boxart automatically downloaded: https://github.com/jpzapa/ES-thegamesdb-scraper
 
 Themes
 ======

THEMES.md

@@ -66,6 +66,8 @@ Display tags must be at the root of the <theme> tree - for example, they can't b
 
 `<listSelectorColor>` - the hex color to use for the "selector bar" on the GuiGameList.
 
+`<listLeftAlign />` - if present, the games list names will be left aligned to $infoWidth.
+
 `<hideHeader />` - if present, the system name header won't be displayed (useful for replacing it with an image).
 
 `<hideDividers />` - if present, the divider between games on the detailed GuiGameList won't be displayed.
@@ -74,11 +76,10 @@ Display tags must be at the root of the <theme> tree - for example, they can't b
 List of variables
 =================
 
-Variables can be used in position and dimension definitions. They can be added, subtracted, multiplied, and divided. Parenthesis are valid.
+Variables can be used in position and dimension definitions. They can be added, subtracted, multiplied, and divided. Parenthesis are valid. They are a percentage of the screen.
 
-Currently, there's only one variable defined:
 `$headerHeight` - height of the system name header.
-
+`$infoWidth` - where the center of the horizontal divider is drawn.
 
 -Aloshi
 http://www.aloshi.com

changelog.txt

@@ -3,6 +3,15 @@ August 13
 -I've added a THEMES.md file for documentation on theming.
 -A CREDITS.md file.
 
+-Fixed theme defaults not resetting when theme changes.
+-The game image on the GuiGameList now maintains its alpha channel.
+-Descriptions can now contain newline characters.
+-Changed the size of the game info column to be 50% of the screen (previously 40%).
+-Adjusted description to have a 3% left and right margins.
+-Added $infoWidth variable for playing with the size of the game info column.
+-Added <listLeftAlign /> tag that makes the game list left aligned instead of centered.
+-Made Renderer::LARGE (header) fontsize slightly bigger
+
 August 12
 -If a theme.xml is not found in a system's directory, ES will now check for $HOME/.emulationstation/es_theme.xml. If present, it will load that.
 -Themes can now be used without the detailed GuiGameList.

src/Renderer_draw.cpp

@@ -11,6 +11,7 @@ TTF_Font* Renderer::fonts[3];
 int Renderer::fontHeight[3];
 
 
+//a utility function to convert an int (usually defined as hex) to the SDL color struct
 SDL_Color getSDLColor(int& color)
 {
 	char* c = (char*)(&color);
@@ -23,8 +24,6 @@ SDL_Color getSDLColor(int& color)
 	return ret;
 }
 
-
-
 void Renderer::drawRect(int x, int y, int h, int w, int color)
 {
 	SDL_Rect rect = {x, y, h, w};
@@ -43,8 +42,7 @@ bool Renderer::loadFonts()
 		std::cerr << fontPath << " (which may not exist).\n";
 	}
 
-	//int sizeArray[] = {Renderer::getScreenHeight() * 0.025, Renderer::getScreenHeight() * 0.05, Renderer::getScreenHeight() * 0.075};
+	int sizeArray[] = {Renderer::getScreenWidth() * 0.015, Renderer::getScreenWidth() * 0.03, Renderer::getScreenWidth() * 0.062};
-	int sizeArray[] = {Renderer::getScreenWidth() * 0.015, Renderer::getScreenWidth() * 0.03, Renderer::getScreenWidth() * 0.05};
 
 
 	//the three here should be the font count but, again, I don't remember the syntax
@@ -117,6 +115,7 @@ void Renderer::drawCenteredText(std::string text, int xOffset, int y, int color,
 }
 
 //this could probably be optimized
+//draws text and ensures it's never longer than xLen
 void Renderer::drawWrappedText(std::string text, int xStart, int yStart, int xLen, int color, FontSize fontsize)
 {
 	if(!loadedFonts)
@@ -128,40 +127,53 @@ void Renderer::drawWrappedText(std::string text, int xStart, int yStart, int xLe
 
 	std::string line, word, temp;
 	int w, h;
-	size_t space;
+	size_t space, newline;
 
-	while(text.length() > 0 || !line.empty())
+	while(text.length() > 0 || !line.empty()) //while there's text or we still have text to render
 	{
 		space = text.find(' ', 0);
 		if(space == std::string::npos)
 			space = text.length() - 1;
 
+
 		word = text.substr(0, space + 1);
-		text.erase(0, space + 1);
+
+		//check if the next word contains a newline
+		newline = word.find('\n', 0);
+		if(newline != std::string::npos)
+		{
+			word = word.substr(0, newline);
+			text.erase(0, newline + 1);
+		}else{
+			text.erase(0, space + 1);
+		}
 
 		temp = line + word;
 
 		TTF_SizeText(font, temp.c_str(), &w, &h);
 
-
+		//if we're on the last word and it'll fit on the line, just add it to the line
-		if(w <= xLen && text.length() == 0)
+		if((w <= xLen && text.length() == 0) || newline != std::string::npos)
 		{
 			line = temp;
 			word = "";
 		}
 
-		if(w > xLen || text.length() == 0)
+
+		//if the next line will be too long or we're on the last of the text, render it
+		if(w > xLen || text.length() == 0 || newline != std::string::npos)
 		{
 			//render line now
-			drawText(line, xStart, y, color, fontsize);
+			if(w > 0) //make sure it's not blank
+				drawText(line, xStart, y, color, fontsize);
 
 			//increment y by height and some extra padding for the next line
 			y += h + 4;
 
-			//draw the word we skipped on the next line
+			//move the word we skipped to the next line
 			line = word;
 		}else{
-			//there's still space, continue
+			//there's still space, continue building the line
 			line = temp;
 		}
 

src/components/GuiGameList.cpp

@@ -11,6 +11,8 @@
 	extern float FRAMERATE;
 #endif
 
+const float GuiGameList::sInfoWidth = 0.5;
+
 GuiGameList::GuiGameList(bool useDetail)
 {
 	std::cout << "Creating GuiGameList\n";
@@ -21,10 +23,11 @@ GuiGameList::GuiGameList(bool useDetail)
 	//Those with smaller displays may prefer the older view.
 	if(mDetailed)
 	{
-		mList = new GuiList<FileData*>(Renderer::getScreenWidth() * 0.4, Renderer::getFontHeight(Renderer::LARGE) + 2);
+		mList = new GuiList<FileData*>(Renderer::getScreenWidth() * sInfoWidth, Renderer::getFontHeight(Renderer::LARGE) + 2);
 
 		mScreenshot = new GuiImage(Renderer::getScreenWidth() * 0.2, Renderer::getFontHeight(Renderer::LARGE) + 2, "", Renderer::getScreenWidth() * 0.3);
 		mScreenshot->setOrigin(0.5, 0.0);
+		mScreenshot->setAlpha(true); //slower, but requested
 		addChild(mScreenshot);
 	}else{
 		mList = new GuiList<FileData*>(0, Renderer::getFontHeight(Renderer::LARGE) + 2);
@@ -103,8 +106,9 @@ void GuiGameList::onRender()
 
 	if(mDetailed)
 	{
+		//divider
 		if(!mTheme->getDividersHidden())
-			Renderer::drawRect(Renderer::getScreenWidth() * 0.4, Renderer::getFontHeight(Renderer::LARGE) + 2, 8, Renderer::getScreenHeight(), 0x0000FF);
+			Renderer::drawRect(Renderer::getScreenWidth() * sInfoWidth - 4, Renderer::getFontHeight(Renderer::LARGE) + 2, 8, Renderer::getScreenHeight(), 0x0000FF);
 
 		//if we have selected a non-folder
 		if(mList->getSelectedObject() && !mList->getSelectedObject()->isFolder())
@@ -114,7 +118,7 @@ void GuiGameList::onRender()
 			//todo: cache this
 			std::string desc = game->getDescription();
 			if(!desc.empty())
-				Renderer::drawWrappedText(desc, 2, Renderer::getFontHeight(Renderer::LARGE) + mScreenshot->getHeight() + 10, Renderer::getScreenWidth() * 0.4, mTheme->getDescColor(), Renderer::SMALL);
+				Renderer::drawWrappedText(desc, Renderer::getScreenWidth() * 0.03, Renderer::getFontHeight(Renderer::LARGE) + mScreenshot->getHeight() + 10, Renderer::getScreenWidth() * 0.47, mTheme->getDescColor(), Renderer::SMALL);
 		}
 	}
 }
@@ -126,9 +130,8 @@ void GuiGameList::onInput(InputManager::InputButton button, bool keyDown)
 		if(!keyDown)
 		{
 			FileData* file = mList->getSelectedObject();
-			if(file->isFolder())
+			if(file->isFolder()) //if you selected a folder, add this directory to the stack, and use the selected one
 			{
-				//set current directory to this or something
 				mFolderStack.push(mFolder);
 				mFolder = (FolderData*)file;
 				updateList();
@@ -138,6 +141,7 @@ void GuiGameList::onInput(InputManager::InputButton button, bool keyDown)
 		}
 	}
 
+	//if there's something on the directory stack, return to it
 	if(button == InputManager::BUTTON2 && keyDown && mFolderStack.size())
 	{
 		mFolder = mFolderStack.top();
@@ -204,6 +208,7 @@ void GuiGameList::updateTheme()
 		mTheme->readXML(""); //clears any current theme
 
 	mList->setSelectorColor(mTheme->getSelectorColor());
+	mList->setCentered(mTheme->getListCentered());
 }
 
 void GuiGameList::updateDetailData()

src/components/GuiGameList.h

@@ -24,6 +24,7 @@ public:
 	void onPause();
 	void onResume();
 
+	static const float sInfoWidth;
 private:
 	void updateList();
 	void updateTheme();

src/components/GuiList.cpp

@@ -14,6 +14,7 @@ GuiList<listType>::GuiList(int offsetX, int offsetY, Renderer::FontSize fontsize
 
 	mFont = fontsize;
 	mSelectorColor = 0x000000;
+	mDrawCentered = true;
 
 	InputManager::registerComponent(this);
 }
@@ -65,7 +66,12 @@ void GuiList<listType>::onRender()
 		}
 
 		ListRow row = mRowVector.at((unsigned int)i);
-		Renderer::drawCenteredText(row.name, mOffsetX, y, row.color, mFont);
+
+		if(mDrawCentered)
+			Renderer::drawCenteredText(row.name, mOffsetX, y, row.color, mFont);
+		else
+			Renderer::drawText(row.name, mOffsetX, y, row.color, mFont);
+
 		y += entrySize;
 	}
 }
@@ -195,3 +201,9 @@ void GuiList<listType>::setSelectorColor(int selectorColor)
 {
 	mSelectorColor = selectorColor;
 }
+
+template<typename listType>
+void GuiList<listType>::setCentered(bool centered)
+{
+	mDrawCentered = centered;
+}

src/components/GuiList.h

@@ -33,12 +33,14 @@ public:
 	int getSelection();
 
 	void setSelectorColor(int selectorColor);
+	void setCentered(bool centered);
 private:
 	int mScrollDir, mScrollAccumulator;
 	bool mScrolling;
 
 	Renderer::FontSize mFont;
 	int mSelectorColor;
+	bool mDrawCentered;
 
 	int mOffsetX, mOffsetY;
 

src/components/GuiTheme.cpp

@@ -1,6 +1,7 @@
 #include "GuiTheme.h"
 #include "../MathExp.h"
 #include <iostream>
+#include "GuiGameList.h"
 #include "GuiImage.h"
 #include <boost/filesystem.hpp>
 #include <sstream>
@@ -11,15 +12,11 @@ int GuiTheme::getSelectorColor() { return mListSelectorColor; }
 int GuiTheme::getDescColor() { return mDescColor; }
 bool GuiTheme::getHeaderHidden() { return mHideHeader; }
 bool GuiTheme::getDividersHidden() { return mHideDividers; }
+bool GuiTheme::getListCentered() { return mListCentered; }
 
 GuiTheme::GuiTheme(std::string path)
 {
-	mListPrimaryColor = 0x0000FF;
+	setDefaults();
-	mListSecondaryColor = 0x00FF00;
-	mListSelectorColor = 0x000000;
-	mDescColor = 0x0000FF;
-	mHideHeader = false;
-	mHideDividers = false;
 
 	if(!path.empty())
 		readXML(path);
@@ -30,6 +27,17 @@ GuiTheme::~GuiTheme()
 	deleteComponents();
 }
 
+void GuiTheme::setDefaults()
+{
+	mListPrimaryColor = 0x0000FF;
+	mListSecondaryColor = 0x00FF00;
+	mListSelectorColor = 0x000000;
+	mDescColor = 0x0000FF;
+	mHideHeader = false;
+	mHideDividers = false;
+	mListCentered = true;
+}
+
 void GuiTheme::deleteComponents()
 {
 	for(unsigned int i = 0; i < mComponentVector.size(); i++)
@@ -49,6 +57,7 @@ void GuiTheme::readXML(std::string path)
 	if(mPath == path)
 		return;
 
+	setDefaults();
 	deleteComponents();
 
 	mPath = path;
@@ -77,6 +86,7 @@ void GuiTheme::readXML(std::string path)
 	mDescColor = resolveColor(root.child("descColor").text().get(), 0x0000FF);
 	mHideHeader = root.child("hideHeader");
 	mHideDividers = root.child("hideDividers");
+	mListCentered = !root.child("listLeftAlign");
 
 	for(pugi::xml_node data = root.child("component"); data; data = data.next_sibling("component"))
 	{
@@ -163,6 +173,7 @@ float GuiTheme::resolveExp(std::string str)
 
 	//set variables
 	exp.setVariable("headerHeight", Renderer::getFontHeight(Renderer::LARGE) / Renderer::getScreenHeight());
+	exp.setVariable("infoWidth", GuiGameList::sInfoWidth);
 
 	return exp.eval();
 }
@@ -177,7 +188,6 @@ int GuiTheme::resolveColor(std::string str, int defaultColor)
 	ss << std::hex << str;
 	ss >> ret;
 
-	std::cout << "resolved " << str << " to " << ret << "\n";
 	return ret;
 }
 

src/components/GuiTheme.h

@@ -18,7 +18,9 @@ public:
 	int getDescColor();
 	bool getHeaderHidden();
 	bool getDividersHidden();
+	bool getListCentered();
 private:
+	void setDefaults();
 	void deleteComponents();
 	GuiComponent* createElement(pugi::xml_node data, GuiComponent* parent);
 
@@ -32,7 +34,7 @@ private:
 	std::vector<GuiComponent*> mComponentVector;
 	std::string mPath;
 	int mListPrimaryColor, mListSecondaryColor, mListSelectorColor, mDescColor;
-	bool mHideHeader, mHideDividers;
+	bool mHideHeader, mHideDividers, mListCentered;
 };
 
 #endif