Cache current icon surface. By doing so we safe a huge number of hash map

lookups.

src/link.cpp

@@ -33,12 +33,14 @@ Link::Link(GMenu2X *gmenu2x) : Button(gmenu2x, true) {
 	iconPath = gmenu2x->sc.getSkinFilePath("icons/generic.png");
 	iconX = 0;
 	padding = 0;
+
+	updateSurfaces();
 }
 
 void Link::run() {}
 
 void Link::paint() {
-	gmenu2x->sc[getIconPath()]->blit(gmenu2x->s, iconX, rect.y+padding, 32,32);
+	iconSurface->blit(gmenu2x->s, iconX, rect.y+padding, 32,32);
 	gmenu2x->s->write( gmenu2x->font, getTitle(), iconX+16, rect.y+gmenu2x->skinConfInt["linkHeight"]-padding, SFontHAlignCenter, SFontVAlignBottom );
 }
 
@@ -50,6 +52,11 @@ bool Link::paintHover() {
 	return true;
 }
 
+void Link::updateSurfaces()
+{
+	iconSurface = gmenu2x->sc[getIconPath()];
+}
+
 string Link::getTitle() {
 	return title;
 }
@@ -89,6 +96,7 @@ void Link::setIcon(string icon) {
 
 	this->icon = icon;
 	edited = true;
+	updateSurfaces();
 }
 
 string Link::searchIcon() {
@@ -106,6 +114,7 @@ void Link::setIconPath(string icon) {
 		iconPath = icon;
 	else
 		iconPath = gmenu2x->sc.getSkinFilePath("icons/generic.png");
+	updateSurfaces();
 }
 
 void Link::setSize(int w, int h) {

src/link.h

@@ -24,6 +24,7 @@
 #include <iostream>
 
 #include "button.h"
+#include "surface.h"
 
 using std::string;
 
@@ -42,7 +43,11 @@ protected:
 	bool edited;
 	string title, description, icon, iconPath;
 
+	Surface *iconSurface;
+	Surface *icon_hover;
+
 	void recalcCoordinates();
+	void updateSurfaces();
 
 public:
 	Link(GMenu2X *gmenu2x);