CComponents: add sub class CComponentsIconForm based upon CComponentsForm

Collects only icons.You can add icons step by step or
with a vector and paint the form at once.
Width and height are dynamic calculated if parameters
width or height are smaller then summary of lenght of all added icons.

It's also possible to manipulate the icon array with members:
- insertIcon()
- removeIcon()
- removeAllIcons()

TODO: support for resizable images

src/gui/components/components.cpp

@@ -1530,6 +1530,9 @@ CComponentsForm::~CComponentsForm()
 
 void CComponentsForm::clearCCItems()
 {
+	if (v_cc_items.empty())
+		return;
+	
 	for(size_t i=0; i<v_cc_items.size(); i++) {
 		if (v_cc_items[i])
 			delete v_cc_items[i];
@@ -1626,7 +1629,7 @@ void CComponentsForm::hide(bool no_restore)
 }
 
 //-------------------------------------------------------------------------------------------------------
-//sub class CComponentsWindows inherit from CComponentsForm
+//sub class CComponentsHeader inherit from CComponentsForm
 CComponentsHeader::CComponentsHeader()
 {
 	//CComponentsHeader
@@ -1702,8 +1705,6 @@ void CComponentsHeader::initVarHeader()
 	col_body 		= COL_MENUHEAD_PLUS_0;
 	corner_rad		= RADIUS_LARGE,
 	corner_type		= CORNER_TOP;
-	
-
 }
 
 void CComponentsHeader::setHeaderText(const std::string& caption)
@@ -1776,3 +1777,137 @@ void CComponentsHeader::paint(bool do_save_bg)
 }
 
 
+//-------------------------------------------------------------------------------------------------------
+//sub class CComponentsIconForm inherit from CComponentsForm
+CComponentsIconForm::CComponentsIconForm()
+{
+	initVarIconForm();
+}
+
+CComponentsIconForm::CComponentsIconForm(const int x_pos, const int y_pos, const int w, const int h, const std::vector<std::string> v_icon_names, bool has_shadow,
+					fb_pixel_t color_frame, fb_pixel_t color_body, fb_pixel_t color_shadow)
+{
+	initVarIconForm();
+
+	x 		= x_pos;
+	y 		= y_pos;
+	width 		= w;
+	height 		= h;
+	shadow		= has_shadow;
+	col_frame	= color_frame;
+	col_body	= color_body;
+	col_shadow	= color_shadow;
+		
+	v_icons		= v_icon_names;
+}
+
+void CComponentsIconForm::initVarIconForm()
+{
+	//CComponentsForm
+	initVarForm();
+
+	//set default width and height to 0, this causes a dynamic adaptation of width and height of form
+	width 		= 0;
+	height 		= 0;
+
+	v_icons.clear();
+	ccif_offset 	= 2;
+}
+
+void CComponentsIconForm::addIcon(const std::string& icon_name)
+{
+	v_icons.push_back(icon_name);
+}
+
+void CComponentsIconForm::addIcon(std::vector<std::string> icon_name)
+{
+	for (size_t i= 0; i< icon_name.size(); i++)
+		v_icons.push_back(icon_name[i]);
+}
+
+void CComponentsIconForm::insertIcon(const uint& icon_id, const std::string& icon_name)
+{
+	v_icons.insert(v_icons.begin()+icon_id, icon_name);
+}
+
+void CComponentsIconForm::removeIcon(const uint& icon_id)
+{
+	v_icons.erase(v_icons.begin()+icon_id);
+}
+
+void CComponentsIconForm::removeIcon(const std::string& icon_name)
+{
+	int id = getIconId(icon_name);
+	removeIcon(id);
+}
+
+int CComponentsIconForm::getIconId(const std::string& icon_name)
+{
+	for (size_t i= 0; i< v_icons.size(); i++)
+		if (v_icons[i] == icon_name)
+			return i;
+	return -1;
+}
+
+//For existing instances it's recommended
+//to remove old items before add new icons, otherwise icons will be appended.
+void CComponentsIconForm::removeAllIcons()
+{
+	clearCCItems();
+	if (!v_icons.empty())
+		v_icons.clear();
+}
+
+void CComponentsIconForm::initCCIcons()
+{
+	//clean up first possible old item objects, includes delete and clean up vector and icons
+	clearCCItems();
+	
+	int ccp_x = 0+fr_thickness;
+	int ccp_y = 0;
+	int ccp_w = 0;
+	int ccp_h = 0;
+
+	//detect maximal form height
+	int h = height;
+	for (size_t i= 0; i< v_icons.size(); i++){
+		frameBuffer->getIconSize(v_icons[i].c_str(), &ccp_w, &ccp_h);
+		h = max(ccp_h, h)/*+2*fr_thickness*/;
+	}
+
+	//init and add item objects
+	for (size_t i= 0; i< v_icons.size(); i++){
+		frameBuffer->getIconSize(v_icons[i].c_str(), &ccp_w, &ccp_h);
+
+		CComponentsPicture *ccp = NULL;
+		ccp = new CComponentsPicture(ccp_x, ccp_y, ccp_w, h, v_icons[i]);
+		ccp->setPictureAlign(CC_ALIGN_HOR_CENTER | CC_ALIGN_VER_CENTER);
+		ccp->doPaintBg(false);
+		
+		addCCItem(ccp);
+		
+		ccp_x += ccif_offset + ccp_w;
+	}
+
+	//calculate form width and height
+	int w_tmp = 0;
+	int h_tmp = 0;
+	for (size_t i= 0; i< v_cc_items.size(); i++){
+		w_tmp += v_cc_items[i]->getWidth()+ccif_offset+fr_thickness;
+		h_tmp = max(h_tmp, v_cc_items[i]->getHeight()+2*fr_thickness);
+	}
+	width = max(w_tmp, width)-ccif_offset; //terminate last offset
+	height = max(h_tmp, height);
+}
+
+void CComponentsIconForm::paint(bool do_save_bg)
+{
+	//init and add icons
+	initCCIcons();
+
+	//paint body
+	paintInit(do_save_bg);
+
+	//paint
+	paintCCItems();
+}