neutrino/src/gui/components/cc_frm_button.cpp

/*
	Based up Neutrino-GUI - Tuxbox-Project 
	Copyright (C) 2001 by Steffen Hehn 'McClean'

	Classes for generic GUI-related components.
	Copyright (C) 2012-2014, Thilo Graf 'dbt'

	License: GPL

	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public
	License as published by the Free Software Foundation; either
	version 2 of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
	General Public License for more details.

	You should have received a copy of the GNU General Public
	License along with this program; if not, write to the
	Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
	Boston, MA  02110-1301, USA.
*/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <global.h>
#include <neutrino.h>

#include "cc_frm_button.h"


using namespace std;

CComponentsButton::CComponentsButton( 	const int& x_pos, const int& y_pos, const int& w, const int& h,
					const std::string& caption, const std::string& icon_name,
					CComponentsForm* parent,
					bool selected,
					bool enabled,
					bool has_shadow,
					fb_pixel_t color_frame, fb_pixel_t color_body, fb_pixel_t color_shadow)
{
	cc_btn_capt_locale = NONEXISTANT_LOCALE;
	initVarButton(x_pos, y_pos, w, h,  caption, icon_name, parent, selected, enabled, has_shadow, color_frame, color_body, color_shadow);
}

CComponentsButton::CComponentsButton( 	const int& x_pos, const int& y_pos, const int& w, const int& h,
					const neutrino_locale_t& caption_locale, const std::string& icon_name,
					CComponentsForm* parent,
					bool selected,
					bool enabled,
					bool has_shadow,
					fb_pixel_t color_frame, fb_pixel_t color_body, fb_pixel_t color_shadow)
{
	cc_btn_capt_locale = caption_locale;
	initVarButton(x_pos, y_pos, w, h, g_Locale->getText(cc_btn_capt_locale), icon_name, parent, selected, enabled, has_shadow, color_frame, color_body, color_shadow);
}

void CComponentsButton::initVarButton(	const int& x_pos, const int& y_pos, const int& w, const int& h,
					const std::string& caption,
					const std::string& icon_name,
					CComponentsForm* parent,
					bool selected,
					bool enabled,
					bool has_shadow,
					fb_pixel_t color_frame, fb_pixel_t color_body, fb_pixel_t color_shadow)
{
	cc_item_type 	= CC_ITEMTYPE_BUTTON;

	x 		= x_pos;
	y 		= y_pos;
	width 		= w;
	height	 	= h;
	shadow		= has_shadow;
	shadow_w	= SHADOW_OFFSET;
	col_frame 	= color_frame;
	col_body	= color_body;
	col_shadow	= color_shadow;
	cc_item_enabled  = enabled;
	cc_item_selected = selected;
	fr_thickness 	= 3;
	append_x_offset = 2*fr_thickness;
	append_y_offset = append_x_offset;
	corner_rad	= RADIUS_MID;
	
	cc_btn_capt_col	= COL_MENUCONTENT_TEXT;
	cc_btn_icon_obj	= NULL;
	cc_btn_capt_obj = NULL;
	cc_btn_dy_font  = CNeutrinoFonts::getInstance();
	cc_btn_font	= NULL;
	cc_btn_icon	= icon_name;
	cc_btn_capt	= caption;

	initParent(parent);
}

void CComponentsButton::initIcon()
{
	//init cch_icon_obj only if an icon available
	if (cc_btn_icon.empty()) {
		if (cc_btn_icon_obj)
			delete cc_btn_icon_obj;
		cc_btn_icon_obj = NULL;
		return;
	}

	//initialize icon object
	if (cc_btn_icon_obj == NULL){
		cc_btn_icon_obj = new CComponentsPicture(fr_thickness, CC_CENTERED, 0, 0, cc_btn_icon, CC_ALIGN_HOR_CENTER | CC_ALIGN_VER_CENTER, this);
		cc_btn_icon_obj->doPaintBg(false);
	}
}

void CComponentsButton::initCaption()
{
	//init label as caption object and add to container
	if (!cc_btn_capt.empty()){
		if (cc_btn_capt_obj == NULL){
			cc_btn_capt_obj = new CComponentsLabel();
			cc_btn_capt_obj->doPaintBg(false);
			addCCItem(cc_btn_capt_obj);
		}
	}else{
		if (cc_btn_capt_obj){
			delete cc_btn_capt_obj;
			cc_btn_capt_obj = NULL;
		}
	}

	//set basic properties
	if (cc_btn_capt_obj){
		//position and size
		int x_cap = fr_thickness + append_x_offset;
		x_cap += cc_btn_icon_obj ? cc_btn_icon_obj->getWidth() : 0;

		int w_cap = width - x_cap - 2*fr_thickness - append_x_offset;
		int h_cap = height - 2*fr_thickness;
		
		/*FIXME:
			paint of  centered text in y without y_offset
			looks unlovely displaced in y direction besides icon,
			but text render isn't wrong here, because chars like e. 'q', 'y' are considered!
		*/
		int y_cap = height/2 - h_cap/2 + append_x_offset/2 /*CC_CENTERED*/;

		cc_btn_capt_obj->setDimensionsAll(x_cap, y_cap, w_cap, h_cap);

		//text and font
		cc_btn_font = *cc_btn_dy_font->getDynFont(w_cap, h_cap, cc_btn_capt);
		cc_btn_capt_obj->setText(cc_btn_capt, CTextBox::NO_AUTO_LINEBREAK, cc_btn_font);
		cc_btn_capt_obj->forceTextPaint(); //here required;

		//set color
		cc_btn_capt_obj->setTextColor(this->cc_item_enabled ? COL_MENUCONTENT_TEXT : COL_MENUCONTENTINACTIVE_TEXT);

		//corner of text item
		cc_btn_capt_obj->setCorner(corner_rad-fr_thickness, corner_type);
	}
}

void CComponentsButton::setCaption(const std::string& text)
{
	cc_btn_capt = text;
}

void CComponentsButton::setCaption(const neutrino_locale_t locale_text)
{
	cc_btn_capt_locale = locale_text;
	setCaption(g_Locale->getText(cc_btn_capt_locale));
}

void CComponentsButton::initCCBtnItems()
{
	initIcon();

	initCaption();
}


void CComponentsButton::paint(bool do_save_bg)
{
	//prepare items before paint
	initCCBtnItems();

	//paint form contents
	paintForm(do_save_bg);
}