Added case-insensitive search

Fixed Windows Debug build

src/libprojectM/Common.hpp

@@ -30,6 +30,7 @@
 #include <typeinfo>
 #include <cstdarg>
 #include <cassert>
+#include <locale>
 
 #ifdef _MSC_VER
 #define strcasecmp(s, t) _strcmpi(s, t)
@@ -233,6 +234,25 @@ inline double meanSquaredError(const double & x, const double & y) {
 		return (x-y)*(x-y);
 }
 
+template <typename charT>
+struct caseInsensitiveEqual {
+    caseInsensitiveEqual(const std::locale &loc) : loc_(loc) {}
+    bool operator()(charT ch1, charT ch2) { return std::toupper(ch1, loc_) == std::toupper(ch2, loc_); }
+
+private:
+    const std::locale &loc_;
+};
+
+template <typename T>
+int caseInsensitiveSubstringFind(const T &haystack, const T &needle, const std::locale &loc = std::locale()) {
+    typename T::const_iterator it = std::search(
+        haystack.begin(), haystack.end(), 
+        needle.begin(),	needle.end(),
+        caseInsensitiveEqual<typename T::value_type>(loc));
+    if (it != haystack.end()) return it - haystack.begin();
+
+    return std::string::npos;
+}
 
 enum PresetRatingType {
 	FIRST_RATING_TYPE = 0,

src/libprojectM/PCM.cpp

@@ -406,7 +406,7 @@ void PCM::freePCM()
 
 #ifndef NDEBUG
 
-#include <PresetLoader.hpp>
+#include "PresetLoader.hpp"
 
 #define TEST(cond) if (!verify(__FILE__ ": " #cond,cond)) return false
 #define TEST2(str,cond) if (!verify(str,cond)) return false

src/libprojectM/Renderer/Renderer.cpp

@@ -120,9 +120,15 @@ void Renderer::drawText(GLTtext* text, const char* string, GLfloat x, GLfloat y,
 void Renderer::drawText(GLTtext* text, const char* string, const char* needle, GLfloat x, GLfloat y, GLfloat scale, int horizontalAlignment = GLT_LEFT, int verticalAlignment = GLT_TOP, float r = 1.0f, float b  = 1.0f, float g  = 1.0f, float a  = 1.0f, bool highlightable = false) {
 	int offset = x;
 	std::string str_find = string;
+	std::string str_needle = needle;
 	for( size_t pos = 0; ; pos += str_find.length() ) {
 		// find search term
-		pos = str_find.find(needle);
+		pos = caseInsensitiveSubstringFind(str_find, str_needle);
+
+		std::string needle_found = str_needle;
+		if (pos != std::string::npos) {
+			needle_found = str_find.substr(pos, str_needle.length());
+		}
 
 		// draw everything normal, up to search term.
 		gltColor(r, g, b, a);
@@ -133,14 +139,14 @@ void Renderer::drawText(GLTtext* text, const char* string, const char* needle, G
 		GLfloat textWidth = gltGetTextWidth(text, scale);
 		offset = offset + textWidth;
 		gltColor(1.0f, 0.0f, 1.0f, 1.0f);
-		gltSetText(text, searchText().c_str());
+		gltSetText(text, needle_found.c_str());
 		gltDrawText2DAligned(text, offset, y, scale, horizontalAlignment, verticalAlignment);
 
 		// draw rest of name, normally
 		textWidth = gltGetTextWidth(text, scale);
 		offset = offset + textWidth;
 		gltColor(r, g, b, a);
-		gltSetText(text, str_find.substr(pos+searchText().length(),str_find.length()).c_str());
+		gltSetText(text, str_find.substr(pos+needle_found.length(), str_find.length()).c_str());
 		gltDrawText2DAligned(text, offset, y, scale, horizontalAlignment, verticalAlignment);
 		break; // first search hit is useful enough.
 	}

src/libprojectM/projectM.cpp

@@ -801,7 +801,7 @@ void projectM::populatePresetMenu()
             std::string presetName = renderer->presetName();
             int presetIndex = getSearchIndex(presetName);
             for(unsigned int i = 0; i < getPlaylistSize(); i++) { // loop over all presets
-                if (getPresetName(i).find(renderer->searchText()) != std::string::npos) { // if term matches
+                if (caseInsensitiveSubstringFind(getPresetName(i), renderer->searchText()) != std::string::npos) { // if term matches
                     if (h < renderer->textMenuPageSize) // limit to just one page, pagination is not needed.
                     {
                         h++;