CComponentsHeader: add possibility to show channellogo

Contains methode setChannelLogo() with parameters
for channel id, channel name and optional
alignment (primary between title and clock). Default
alignment is centered.
Optional parameter to set logo height is available too.

Hope it works on first try. To see how it works, take look
at channellist class.

src/gui/channellist.cpp

@@ -1676,35 +1676,16 @@ void CChannelList::paintAdditionals(int index)
 	}
 }
 
-void CChannelList::showChannelLogo() //TODO: move into an own handler, eg. header, channel logo should be paint inside header object
+void CChannelList::showChannelLogo()
 {
 	if ((*chanlist).empty())
 		return;
 	if(g_settings.channellist_show_channellogo){
-		int logo_w_max = full_width / 4;
-		int logo_h_max = theight - 2*OFFSET_INNER_MIN;
-		if (CChannelLogo) {
-			if (headerNew)
-				CChannelLogo->clearSavedScreen();
-			else
-				CChannelLogo->hide();
-			delete CChannelLogo;
-		}
-		CChannelLogo = new CComponentsChannelLogoScalable(0, 0, (*chanlist)[selected]->getName(), (*chanlist)[selected]->getChannelID());
-
-		if (CChannelLogo->hasLogo()){
-			CChannelLogo->setWidth(min(CChannelLogo->getWidth(), logo_w_max), true);
-			if (CChannelLogo->getHeight() > logo_h_max)
-				CChannelLogo->setHeight(logo_h_max, true);
-			CChannelLogo->setXPos(x + full_width - logo_off - CChannelLogo->getWidth());
-			CChannelLogo->setYPos(y + (theight - CChannelLogo->getHeight()) / 2);
-			CChannelLogo->paint();
-		} else {
-			CChannelLogo->hide();
-			delete CChannelLogo;
-			CChannelLogo = NULL;
-		}
-		headerNew = false;
+		header->setChannelLogo((*chanlist)[selected]->getChannelID(), (*chanlist)[selected]->getName());
+		header->getLogoObject()->hide();
+		header->getLogoObject()->clearSavedScreen();
+		header->getLogoObject()->allowPaint(true);
+		header->getLogoObject()->paint();
 	}
 }
 
@@ -2172,7 +2153,14 @@ void CChannelList::paintHead()
 	else
 		logo_off = OFFSET_INNER_MID;
 
+	if(g_settings.channellist_show_channellogo){
+		//ensure to have clean background
+		header->getLogoObject()->hide();
+		header->setChannelLogo((*chanlist)[selected]->getChannelID(), (*chanlist)[selected]->getName());
+		header->getLogoObject()->allowPaint(false);
+	}
 	header->paint(CC_SAVE_SCREEN_NO);
+	showChannelLogo();
 }
 
 CComponentsHeader* CChannelList::getHeaderObject()

src/gui/components/cc_frm_header.cpp

@@ -31,6 +31,9 @@
 #include "cc_frm_header.h"
 #include <system/debug.h>
 #include <driver/fontrenderer.h>
+#include <driver/pictureviewer/pictureviewer.h>
+
+extern CPictureViewer * g_PicViewer;
 
 
 using namespace std;
@@ -91,8 +94,8 @@ void CComponentsHeader::initVarHeader(	const int& x_pos, const int& y_pos, const
 	cc_item_type 		= CC_ITEMTYPE_FRM_HEADER;
 	clear();
 	cc_txt_save_screen	= false;
-	x	= x_old = x_pos;
-	y	= y_old = y_pos;
+	x = cc_xr = x_old 	= x_pos;
+	y = cc_yr = y_old 	= y_pos;
 
 	//init header width
 	width 	= width_old = w == 0 ? frameBuffer->getScreenWidth(true) : w;
@@ -121,6 +124,11 @@ void CComponentsHeader::initVarHeader(	const int& x_pos, const int& y_pos, const
 	cch_text_obj		= NULL;
 	cch_btn_obj		= NULL;
 	cch_cl_obj		= NULL;
+	cch_logo_obj		= NULL;
+	cch_logo.Id		= 0;
+	cch_logo.Name		= "";
+	cch_logo.dy_max		= -1;
+	cch_logo.Align		= CC_LOGO_RIGHT;
 	cch_col_text		= COL_MENUHEAD_TEXT;
 	cch_caption_align	= CTextBox::NO_AUTO_LINEBREAK;
 	cch_items_y 		= CC_CENTERED;
@@ -264,6 +272,49 @@ void CComponentsHeader::initIcon()
 	}
 }
 
+void CComponentsHeader::initLogo()
+{
+	cch_logo.dy_max = cch_logo.dy_max == -1 ? height - 2*OFFSET_INNER_SMALL : cch_logo.dy_max;
+
+	if(!cch_logo_obj)
+		cch_logo_obj = new CComponentsChannelLogoScalable(width/2, height/2 - cch_logo.dy_max/2, cch_logo.Name, cch_logo.Id, this);
+	else
+		cch_logo_obj->setChannel(cch_logo.Id, cch_logo.Name);
+
+	if (cch_logo_obj->hasLogo()){
+		cch_logo_obj->setHeight(cch_logo.dy_max, true);
+
+		// set id of logo item depends of neighbor items
+		int logo_id = getCCItemId(cch_logo_obj);
+		int next_id = logo_id + 1;
+		int prev_id = logo_id - 1;
+
+		//right end
+		int x_logo_right = getCCItem(next_id) ? getCCItem(next_id)->getXPos() - cch_logo_obj->getWidth() : width - cch_logo_obj->getWidth()-OFFSET_INNER_MID;
+		//left end
+		int x_logo_left = getCCItem(prev_id) ? getCCItem(prev_id)->getXPos() + getCCItem(prev_id)->getWidth() : 0;
+
+		//calculate available space
+		int logo_space = x_logo_right + cch_logo_obj->getWidth() - x_logo_left;
+
+		//reduce logo width if logo space too small
+		int w_logo = min(cch_logo_obj->getWidth(), logo_space);
+		cch_logo_obj->setWidth(w_logo, true);
+
+		//set final logo position
+		int x_logo = 0;
+		if (cch_logo.Align == CC_LOGO_RIGHT)
+			x_logo = x_logo_right;
+		if (cch_logo.Align == CC_LOGO_LEFT)
+			x_logo = x_logo_left;
+		if (cch_logo.Align == CC_LOGO_CENTER)
+			x_logo = x_logo_left + logo_space/2 - cch_logo_obj->getWidth()/2;
+
+		cch_logo_obj->setXPos(x_logo);
+		cch_logo_obj->setYPos(height/2 - cch_logo_obj->getHeight()/2);
+	}
+}
+
 void CComponentsHeader::addContextButton(const std::string& button_name)
 {
 	v_cch_btn.push_back(button_name);
@@ -505,6 +556,9 @@ void CComponentsHeader::initCaption()
 		if (cch_caption_align == CTextBox::CENTER)
 			cch_text_x = CC_CENTERED;
 
+		//recalc caption width
+		cc_text_w = min(cc_text_w, cch_font->getRenderWidth(cch_text)+ OFFSET_INNER_MID);
+
 		//assign general properties
 		cch_text_obj->setDimensionsAll(cch_text_x, cch_items_y, cc_text_w, height);
 		cch_text_obj->setColorBody(col_body);
@@ -548,6 +602,9 @@ void CComponentsHeader::initCCItems()
 
 	//init text
 	initCaption();
+
+	//init logo
+	initLogo();
 }
 
 void CComponentsHeader::paint(bool do_save_bg)

src/gui/components/cc_frm_header.h

@@ -36,9 +36,29 @@
 /*!
 CComponentsHeader provides prepared items like icon, caption and context button icons, mostly for usage in menues or simple windows
 */
+
 class CComponentsHeader : public CComponentsForm, public CCTextScreen
 {
+	public:
+		///logo position options
+		typedef enum
+		{
+			CC_LOGO_RIGHT 	,
+			CC_LOGO_LEFT 	,
+			CC_LOGO_CENTER
+		}cc_logo_alignment_t;
+
 	private:
+		///required logo data type
+		typedef struct cch_logo_t
+		{
+			uint64_t Id;
+			std::string Name;
+			int32_t	dx_max;
+			int32_t	dy_max;
+			cc_logo_alignment_t Align;
+		} cch_logo_struct_t;
+
 		///member: init genaral variables, parameters for mostly used properties
 		void initVarHeader(	const int& x_pos, const int& y_pos, const int& w, const int& h,
 					const std::string& caption,
@@ -59,6 +79,11 @@ class CComponentsHeader : public CComponentsForm, public CCTextScreen
 		CComponentsIconForm * cch_btn_obj;
 		///object: clock object
 		CComponentsFrmClock * cch_cl_obj;
+		///object: logo object
+		CComponentsChannelLogoScalable * cch_logo_obj;
+
+		///attributes for logos
+		cch_logo_t cch_logo;
 
 		///property: caption text, see also setCaption()
 		std::string cch_text;
@@ -112,6 +137,9 @@ class CComponentsHeader : public CComponentsForm, public CCTextScreen
 		void initButtons();
 		///sub: init clock object
 		void initClock();
+		///sub: init logo object
+		void initLogo();
+
 		///int repaint slot
 		void initRepaintSlot();
 
@@ -275,6 +303,30 @@ class CComponentsHeader : public CComponentsForm, public CCTextScreen
 
 		///set color gradient on/off, returns true if gradient mode was changed
 		virtual bool enableColBodyGradient(const int& enable_mode, const fb_pixel_t& sec_color = 255 /*=COL_BACKGROUND*/, const int& direction = -1);
+
+		/**Methode to set channel logo into header body via id and/or channel name
+		* @param[in]  	channelId
+		* 		@li required channel id as uint64_t
+		* @param[in]  	channelIName
+		* 		@li required channel name as std::string
+		* @param[in]  	alignment
+		* 		@li optional alingment parameter as cc_logo_alignment_t (enum)\n
+		* 		Possible values are:\n
+		* 		CC_LOGO_RIGHT \n
+		* 		CC_LOGO_CENTER (default)\n
+		* 		CC_LOGO_RIGHT \n
+		* @param[in]  	dy
+		* 		@li optional logo height, default = -1 (auto)
+		*/
+		void setChannelLogo(	const uint64_t& channelId,
+					const std::string& channelName,
+					cc_logo_alignment_t alignment = CC_LOGO_CENTER,
+					const int& dy = -1)
+					{cch_logo.Id = channelId; cch_logo.Name = channelName, cch_logo.Align = alignment, cch_logo.dy_max = dy; initCCItems();}
+		/**Methode to get channel logo object for direct access to its properties and methodes
+		* @return  	CComponentsChannelLogoScalable*
+		*/
+		CComponentsChannelLogoScalable* getLogoObject(){return cch_logo_obj;}
 };
 
 //! Sub class of CComponentsHeader.