EXT-3232 Refactoring: Improved the way of horizontal alignment of button's...

EXT-3232 Refactoring: Improved the way of horizontal alignment of button's image overlay. Now mLeftHPad/mRightHPad is used instead of mImageOverlayLeftPad and mImageOverlayRightPad. Also mImgOverlayLabelSpace/imgoverlay_label_space members was added to button.(h/xml) to define space between image overlay and button's label

--HG--
branch : product-engine

indra/llui/llbutton.cpp

@@ -85,6 +85,7 @@ LLButton::Params::Params()
 	image_right_pad("image_right_pad"),
 	image_top_pad("image_top_pad"),
 	image_bottom_pad("image_bottom_pad"),
+	imgoverlay_label_space("imgoverlay_label_space", 1),
 	label_color("label_color"),
 	label_color_selected("label_color_selected"),	// requires is_toggle true
 	label_color_disabled("label_color_disabled"),
@@ -148,6 +149,7 @@ LLButton::LLButton(const LLButton::Params& p)
 	mImageOverlayRightPad(p.image_right_pad),
 	mImageOverlayTopPad(p.image_top_pad),
 	mImageOverlayBottomPad(p.image_bottom_pad),
+	mImgOverlayLabelSpace(p.imgoverlay_label_space),
 	mIsToggle(p.is_toggle),
 	mScaleImage(p.scale_image),
 	mDropShadowedText(p.label_shadow),
@@ -783,9 +785,9 @@ void LLButton::draw()
 		switch(mImageOverlayAlignment)
 		{
 		case LLFontGL::LEFT:
-			text_left += overlay_width + 1;
+			text_left += overlay_width + mImgOverlayLabelSpace;
 			mImageOverlay->draw(
-				mImageOverlayLeftPad,
+				mLeftHPad,
 				center_y - (overlay_height / 2), 
 				overlay_width, 
 				overlay_height, 
@@ -800,9 +802,9 @@ void LLButton::draw()
 				overlay_color);
 			break;
 		case LLFontGL::RIGHT:
-			text_right -= overlay_width + 1;
+			text_right -= overlay_width + mImgOverlayLabelSpace;
 			mImageOverlay->draw(
-				getRect().getWidth() - mImageOverlayRightPad - overlay_width,
+				getRect().getWidth() - mRightHPad - overlay_width,
 				center_y - (overlay_height / 2), 
 				overlay_width, 
 				overlay_height, 

indra/llui/llbutton.h

@@ -112,6 +112,11 @@ class LLButton
 		Optional<S32>			image_top_pad;
 		Optional<S32>			image_bottom_pad;
 
+		/**
+		 * Space between image_overlay and label
+		 */
+		Optional<S32>			imgoverlay_label_space;
+
 		// callbacks
 		Optional<CommitCallbackParam>	click_callback, // alias -> commit_callback
 										mouse_down_callback,
@@ -333,6 +338,11 @@ class LLButton
 	S32							mImageOverlayTopPad;
 	S32							mImageOverlayBottomPad;
 
+	/*
+	 * Space between image_overlay and label
+	 */
+	S32							mImgOverlayLabelSpace;
+
 	F32							mHoverGlowStrength;
 	F32							mCurGlowStrength;
 

indra/newview/skins/default/xui/en/widgets/button.xml

@@ -11,6 +11,7 @@
         image_right_pad="0"
         image_top_pad="0"
         image_bottom_pad="0"
+        imgoverlay_label_space="1"
         label_color="ButtonLabelColor"
         label_color_selected="ButtonLabelSelectedColor"
         label_color_disabled="ButtonLabelDisabledColor"