input: change how joystick scrolling intertia works, textures: use wh…

…ite instead of transparent for first pixels

src/InputEvents.cpp

@@ -44,7 +44,7 @@ bool InputEvents::processSDLEvents()
 	this->type = event.type;
 	this->noop = false;
 
-	// proces joystick hotplugging events
+	// process joystick hotplugging events
 	processJoystickHotplugging(&event);
 
 	this->isScrolling = false;

src/ListElement.cpp

@@ -18,15 +18,14 @@ bool ListElement::process(InputEvents* event)
 bool ListElement::processUpDown(InputEvents* event)
 {
 	bool ret = false;
-	int SPEED = 60;
+	int SPEED = 1;
 
 	// handle up and down for the scroll view
 	if (event->isKeyDown())
 	{
-		// scroll the view
-		this->y += (SPEED * event->held(UP_BUTTON) - SPEED * event->held(DOWN_BUTTON));
-		if (this->y > minYScroll)
-			this->y = minYScroll;
+		// scroll the view by offsetting the elastic counter
+		event->wheelScroll += (SPEED * event->held(UP_BUTTON) - SPEED * event->held(DOWN_BUTTON));
+
 		ret |= event->held(UP_BUTTON) || event->held(DOWN_BUTTON);
 	}
 

src/Texture.cpp

@@ -62,7 +62,7 @@ bool Texture::loadFromSurface(CST_Surface *surface)
 
 	// load first pixel color
 	auto pixelcolor = getpixel(surface, 0, 0);
-	SDL_GetRGB(pixelcolor, surface->format, &texFirstPixel.r, &texFirstPixel.g, &texFirstPixel.b);
+	SDL_GetRGBA(pixelcolor, surface->format, &texFirstPixel.r, &texFirstPixel.g, &texFirstPixel.b, &texFirstPixel.a);
 
 	// load texture size
 	CST_QueryTexture(texture, &texW, &texH);
@@ -135,6 +135,11 @@ void Texture::render(Element* parent)
 		// draw colored background
 		CST_SetDrawColor(renderer, texFirstPixel);
 		auto color = (CST_Color){texFirstPixel.r,texFirstPixel.g,texFirstPixel.b,0xFF};
+
+		// if the first pixel is transparent, use white
+		if (texFirstPixel.a == 0)
+			color = (CST_Color){0xFF,0xFF,0xFF,0xFF};
+
 		CST_SetDrawColor(renderer, color);
 		CST_FillRect(renderer, &rect);