add progress bar class, ported from tuxbox.org

git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@46 e54a6e83-5905-42d5-8d5c-058d10e6a962


Origin commit data
------------------
Commit: 5c56e45a8d
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2009-12-13 (Sun, 13 Dec 2009)

src/gui/widget/Makefile.am

@@ -18,7 +18,7 @@ libneutrino_gui_widget_a_SOURCES = \
 	messagebox.cpp hintbox.cpp listbox.cpp listbox_legacy.cpp \
 	rgbcsynccontroler.cpp \
 	drawable.cpp hintboxext.cpp helpbox.cpp mountchooser.cpp \
-	listframe.cpp msgbox.cpp textbox.cpp
+	listframe.cpp msgbox.cpp textbox.cpp progressbar.cpp
 
 libneutrino_gui_widget2_a_SOURCES = \
 	progresswindow.cpp vfdcontroler.cpp

src/gui/widget/progressbar.cpp

@@ -0,0 +1,136 @@
+/*
+ * (C) 2008 by dbt <info@dbox2-tuning.de>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <global.h>
+#include <neutrino.h>
+
+#include "icons.h"
+#include "progressbar.h"
+
+
+CProgressBar::CProgressBar()
+{
+	frameBuffer = CFrameBuffer::getInstance();
+	font_pbar = SNeutrinoSettings::FONT_TYPE_INFOBAR_SMALL;
+	// frame width around active bar
+	frame_widht = 2;
+}
+
+CProgressBar::~CProgressBar()
+{
+}
+
+void CProgressBar::paintProgressBar (	const int pos_x,
+					const int pos_y,
+					const int pb_width,
+					const int pb_height,
+					const int value,
+					const int max_value,
+					const fb_pixel_t activebar_col,
+					const fb_pixel_t passivebar_col,
+					const fb_pixel_t backgroundbar_col,
+					const fb_pixel_t shadowbar_col,
+					const char *upper_labeltext,
+					const uint8_t uppertext_col,
+					const char *iconfile,
+					bool paintZero)
+{
+	// set colors
+	fb_pixel_t active_col = activebar_col != 0 ? activebar_col : COL_INFOBAR_PLUS_7;
+	fb_pixel_t passive_col = passivebar_col != 0 ? passivebar_col : COL_INFOBAR_PLUS_3;
+
+	int c_rad = RADIUS_SMALL;
+	// get icon size
+	int icon_w = 0, icon_h = 0;
+	icon_w = iconfile != NULL ? frameBuffer->getIconWidth(iconfile) : 0;
+	icon_h = iconfile != NULL ? frameBuffer->getIconHeight(iconfile) : 0;
+
+	// start positions x/y active bar
+	int start_x = icon_w != 0 ? pos_x  + icon_w + 2*frame_widht : pos_x + frame_widht;
+	int start_y = pos_y + frame_widht;
+
+	// width active bar for current value
+	int active_pb_width;
+	if (max_value)
+		active_pb_width = (pb_width - icon_w - 2 * frame_widht) * value / max_value;
+	else
+		active_pb_width = 0;
+
+	// max width active/passive bar
+	int pb_max_width = icon_w != 0 ? (pb_width - 2*frame_widht) - icon_w - frame_widht : pb_width - 2*frame_widht;
+
+	// max height progressbar bar, if icon height larger than pb_height then get height from icon
+	int pb_max_height = icon_h > pb_height ? icon_h + 2* frame_widht : pb_height;
+
+	// max height of active/passive bar
+	int bar_height = pb_max_height - 2*frame_widht;
+
+	int start_x_passive_bar = start_x + active_pb_width;
+	int width_passive_bar =  pb_max_width - active_pb_width;
+
+	// shadow
+	if (shadowbar_col != 0)
+		frameBuffer->paintBoxRel(pos_x+SHADOW_OFFSET,pos_y+SHADOW_OFFSET, pb_width, pb_max_height, shadowbar_col, c_rad); // shadow
+
+	// background = frame
+	if (backgroundbar_col != 0) {
+		// we must paint background as frame, because of flicker effects at screen on fast changing values
+		frameBuffer->paintBoxRel(pos_x,pos_y, 10, pb_max_height, backgroundbar_col, c_rad, CORNER_LEFT);
+		frameBuffer->paintBoxRel(pos_x+pb_width-10,pos_y, 10, pb_max_height, backgroundbar_col, c_rad, CORNER_RIGHT);
+		frameBuffer->paintBoxRel(pos_x+10,pos_y, pb_width-20, frame_widht, backgroundbar_col);
+		frameBuffer->paintBoxRel(pos_x+10,pos_y+pb_max_height-frame_widht, pb_width-20, frame_widht, backgroundbar_col);
+	}
+
+	// paint icon if present
+	if (iconfile != NULL){
+		int icon_y = pos_y + pb_max_height / 2 - icon_h / 2;
+		frameBuffer->paintIcon(iconfile, pos_x + frame_widht, icon_y);
+	}
+
+	// upper text
+	int upper_labeltext_y = start_y - frame_widht;
+	if (upper_labeltext != NULL) {
+		g_Font[font_pbar]->RenderString(start_x +2,
+						upper_labeltext_y,
+						pb_width,
+						upper_labeltext,
+						uppertext_col != 0 ? uppertext_col : COL_INFOBAR,
+						pb_height,
+						true); // UTF8
+	}
+
+	frameBuffer->paintBoxRel(start_x,  start_y, active_pb_width, bar_height, active_col); // active bar
+	frameBuffer->paintBoxRel(start_x_passive_bar, start_y, width_passive_bar, bar_height, passive_col); // passive bar
+	if (paintZero && value == 0)
+		frameBuffer->paintLine(pos_x+2 , pos_y+2, pos_x+pb_width-3, pos_y+pb_height-3, active_col); // zero line
+}
+
+
+void CProgressBar::paintProgressBarDefault(	const int pos_x,
+						const int pos_y,
+						const int pb_width,
+						const int pb_height,
+						const int value,
+						const int max_value)
+{
+	paintProgressBar (pos_x, pos_y, pb_width, pb_height, value, max_value, 0, 0, COL_INFOBAR_SHADOW_PLUS_1, 0, "", 0);
+}

src/gui/widget/progressbar.h

@@ -0,0 +1,94 @@
+/*
+ * $Id$
+ *
+ * (C) 2008 by dbt <info@dbox2-tuning.de>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+ 
+#ifndef __gui_widget_progressbar_h__
+#define __gui_widget_progressbar_h__
+ 
+#include <gui/color.h>
+#include <driver/framebuffer.h>
+#include <driver/fontrenderer.h>
+#include <system/settings.h>
+
+#include <string>
+
+class CProgressBar
+{
+	private:
+		CFrameBuffer * frameBuffer;
+		int font_pbar;
+		int frame_widht;
+	
+	public:
+		CProgressBar();
+		~CProgressBar();
+
+/// void paintProgressBar(...)	
+/*!
+	description of parameters:
+	
+	position of progressbar:
+	pos_x >	start position on screen x
+	pos_y >	start position on screen y
+	pb_width >	with of progressbar
+	pb_height >	height of progressbar
+	
+	definitions of values:
+	value >	value, you will display
+	max_value >	maximal value that you will display
+
+	appearance:	
+	activebar_col >	color of inner bar that shows the current value
+	passivebar_col >	color of passive bar
+	frame_col >	general frame color of progressbar, set 0 for no frame
+	shadowbar_col	color > shadow behind progressbar, set 0 for no shadow
+	
+	upper_labeltext >	optional, label text, will be painted  upper/left the progressbar
+	uppertext_col >	optional, but necessary with label text, color of label text
+	iconfile > optional, name of iconfile
+	paintZero > optional, if set to true and value = 0, then paints a diagonal line instead of active bar as symbolic for a zero value
+*/
+
+	
+		void paintProgressBar (	const int pos_x,
+					const int pos_y,
+					const int pb_width,
+					const int pb_height,
+					const int value,
+					const int max_value,
+					const fb_pixel_t activebar_col = 0,
+					const fb_pixel_t passivebar_col = 0,
+					const fb_pixel_t frame_col = 0,
+					const fb_pixel_t shadowbar_col = 0,
+					const char * upper_labeltext = NULL,
+					const uint8_t uppertext_col = 0,
+					const char * iconfile = NULL,
+					bool paintZero = false);
+	
+		void paintProgressBarDefault (	const int pos_x,
+						const int pos_y,
+						const int pb_width,
+						const int pb_height,
+						const int value,
+						const int max_value);
+						
+};
+					
+#endif /* __gui_widget_progressbar_h__ */