Differential D10708 Diff 27699 src/context/applets/analyzer/plugin/DiscoAnalyzer.cpp

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src/context/applets/analyzer/plugin/DiscoAnalyzer.cpp

This file was moved from src/context/applets/analyzer/DiscoAnalyzer.cpp.

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12	* *	12		* *
13	* You should have received a copy of the GNU General Public License along with *	13		* You should have received a copy of the GNU General Public License along with *
14	* this program. If not, see <http://www.gnu.org/licenses/>. *	14		* this program. If not, see <http://www.gnu.org/licenses/>. *
15	****************************************************************************************/	15		****************************************************************************************/
16		16
17	#include "DiscoAnalyzer.h"	17		#include "DiscoAnalyzer.h"
18		18
19	#include <QImage>	19		#include <QImage>
20	#include <KStandardDirs>	20		#include <QStandardPaths>
21		21
22	#include <cmath>	22		#include <cmath>
23	#include <cstdlib>	23		#include <cstdlib>
24	#include <sys/time.h>	24		#include <sys/time.h>
25		25
26		26
27	DiscoAnalyzer::DiscoAnalyzer( QWidget *parent ):	27		DiscoAnalyzer::DiscoAnalyzer( QWidget *parent ):
28	Analyzer::Base( parent )	28		Analyzer::Base( parent )
29	{	29		{
30	setObjectName( "Disco" );	30		setObjectName( "Disco" );
31		31
32	m_dotTexture = bindTexture( QImage( KStandardDirs::locate( "data", "amarok/images/dot.png" ) ) );	32		m_dotTexture = bindTexture( QImage( QStandardPaths::locate( QStandardPaths::GenericDataLocation, "amarok/images/dot.png" ) ) );
33	m_w1Texture = bindTexture( QImage( KStandardDirs::locate( "data", "amarok/images/wirl1.png" ) ) );	33		m_w1Texture = bindTexture( QImage( QStandardPaths::locate( QStandardPaths::GenericDataLocation, "amarok/images/wirl1.png" ) ) );
34	m_w2Texture = bindTexture( QImage( KStandardDirs::locate( "data", "amarok/images/wirl2.png" ) ) );	34		m_w2Texture = bindTexture( QImage( QStandardPaths::locate( QStandardPaths::GenericDataLocation, "amarok/images/wirl2.png" ) ) );
35		35
36	m_show.paused = true;	36		m_show.paused = true;
37	m_show.pauseTimer = 0.0;	37		m_show.pauseTimer = 0.0;
38	m_show.rotDegrees = 0.0;	38		m_show.rotDegrees = 0.0;
39	m_frame.rotDegrees = 0.0;	39		m_frame.rotDegrees = 0.0;
40	}	40		}
41		41
42	DiscoAnalyzer::~DiscoAnalyzer()	42		DiscoAnalyzer::~DiscoAnalyzer()
▲ Show 20 Lines • Show All 108 Lines • ▼ Show 20 Line(s)		150	// printf( "%d [%f :: %f ]\t%f \n", bands, frame.energy, frame.meanBand, maxValue );
151	}	151		}
152	else	152		else
153	m_frame.energy = 0.0;	153		m_frame.energy = 0.0;
154	}	154		}
155	}	155		}
156		156
157	void DiscoAnalyzer::paintGL()	157		void DiscoAnalyzer::paintGL()
158	{	158		{
159	// Compute the dT since the last call to paintGL and update timings
160	timeval tv;
161	gettimeofday( &tv, NULL );
162	double currentTime = ( double )tv.tv_sec + ( double )tv.tv_usec / 1000000.0;
163	m_show.dT = currentTime - m_show.timeStamp;
164	m_show.timeStamp = currentTime;
165
166	// Clear frame
167	glClear( GL_COLOR_BUFFER_BIT );
168
169	// Shitch to MODEL matrix and reset it to default
170	glMatrixMode( GL_MODELVIEW );
171	glLoadIdentity();
172
173	// Fade the previous drawings.
174	/* glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
175	glBegin( GL_TRIANGLE_STRIP );
176	glColor4f( 0.0f, 0.0f, 0.0f, 0.2f );
177	glVertex2f( 10.0f, 10.0f );
178	glVertex2f( -10.0f, 10.0f );
179	glVertex2f( 10.0f, -10.0f );
180	glVertex2f( -10.0f, -10.0f );
181	glEnd();*/
182
183	glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
184	glEnable( GL_TEXTURE_2D );
185	float alphaN = m_show.paused ? 0.2 : ( m_frame.energy / 10.0 ),
186	alphaP = m_show.paused ? 1.0 : ( 1 - m_frame.energy / 20.0 );
187	if( alphaN > 1.0 )
188	alphaN = 1.0;
189	if( alphaP < 0.1 )
190	alphaP = 0.1;
191	glBindTexture( GL_TEXTURE_2D, m_w2Texture );
192	setTextureMatrix( m_show.rotDegrees, 0.707 * alphaP );
193	glColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
194	glBegin( GL_TRIANGLE_STRIP );
195	glTexCoord2f( 1.0, 1.0 );
196	glVertex2f( 10.0f, 10.0f );
197	glTexCoord2f( 0.0, 1.0 );
198	glVertex2f( -10.0f, 10.0f );
199	glTexCoord2f( 1.0, 0.0 );
200	glVertex2f( 10.0f, -10.0f );
201	glTexCoord2f( 0.0 , 0.0 );
202	glVertex2f( -10.0f, -10.0f );
203	glEnd();
204	glBindTexture( GL_TEXTURE_2D, m_w1Texture );
205	setTextureMatrix( -m_show.rotDegrees * 2, 0.707 );
206	glColor4f( 1.0f, 1.0f, 1.0f, alphaN );
207	glBegin( GL_TRIANGLE_STRIP );
208	glTexCoord2f( 1.0, 1.0 );
209	glVertex2f( 10.0f, 10.0f );
210	glTexCoord2f( 0.0, 1.0 );
211	glVertex2f( -10.0f, 10.0f );
212	glTexCoord2f( 1.0, 0.0 );
213	glVertex2f( 10.0f, -10.0f );
214	glTexCoord2f( 0.0 , 0.0 );
215	glVertex2f( -10.0f, -10.0f );
216	glEnd();
217	setTextureMatrix( 0.0, 0.0 );
218	glDisable( GL_TEXTURE_2D );
219	glBlendFunc( GL_SRC_ALPHA, GL_ONE );
220
221	// Here begins the real draw loop
222	// some updates to the showStruct
223	m_show.rotDegrees += 40.0 * m_show.dT;
224	m_frame.rotDegrees += 80.0 * m_show.dT;
225
226	// handle the 'pause' status
227	if( m_show.paused )
228	{
229	if( m_show.pauseTimer > 0.5 )
230	{
231	if( m_show.pauseTimer > 0.6 )
232	m_show.pauseTimer -= 0.6;
233	drawFullDot( 0.0f, 0.4f, 0.8f, 1.0f );
234	drawFullDot( 0.0f, 0.4f, 0.8f, 1.0f );
235	}
236	m_show.pauseTimer += m_show.dT;
237	return;
238	}
239		159
240	if( m_dotTexture )
241	{
242	glEnable( GL_TEXTURE_2D );
243	glBindTexture( GL_TEXTURE_2D, m_dotTexture );
244	}
245	else
246	glDisable( GL_TEXTURE_2D );
247
248	glLoadIdentity();
249	// glRotatef( -frame.rotDegrees, 0,0,1 );
250	glBegin( GL_QUADS );
251	// Particle * particle = particleList.first();
252	// for (; particle; particle = particleList.next())
253	{
254	glColor4f( 0.0f, 1.0f, 0.0f, 1.0f );
255	drawDot( 0, 0, qMax( 10.0, ( 10.0 * m_frame.energy ) ) );
256	glColor4f( 1.0f, 0.0f, 0.0f, 1.0f );
257	drawDot( 6, 0, qMax( 10.0, ( 5.0 * m_frame.energy ) ) );
258	glColor4f( 0.0f, 0.4f, 1.0f, 1.0f );
259	drawDot( -6, 0, qMax( 10.0, ( 5.0 * m_frame.energy ) ) );
260	}
261	glEnd();
262	}	160		}
263		161
264	void DiscoAnalyzer::drawDot( float x, float y, float size )	162		void DiscoAnalyzer::drawDot( float x, float y, float size )
265	{	163		{
266	float sizeX = size * m_unitX,	164		float sizeX = size * m_unitX,
267	sizeY = size * m_unitY,	165		sizeY = size * m_unitY,
268	pLeft = x - sizeX,	166		pLeft = x - sizeX,
269	pTop = y + sizeY,	167		pTop = y + sizeY,
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