1 /*
2 * Hydrogen
3 * Copyright(c) 2002-2008 by Alex >Comix< Cominu [comix@users.sourceforge.net]
4 *
5 * http://www.hydrogen-music.org
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY, without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23 #include <hydrogen/basics/sample.h>
24 #include <hydrogen/basics/song.h>
25 #include <hydrogen/basics/instrument.h>
26 #include "HydrogenApp.h"
27 #include "SampleEditor.h"
28 using namespace H2Core;
29
30 #include "MainSampleWaveDisplay.h"
31 #include "../Skin.h"
32
33 const char* MainSampleWaveDisplay::__class_name = "MainSampleWaveDisplay";
34
MainSampleWaveDisplay(QWidget * pParent)35 MainSampleWaveDisplay::MainSampleWaveDisplay(QWidget* pParent)
36 : QWidget( pParent )
37 , Object( __class_name )
38 {
39 // setAttribute(Qt::WA_NoBackground);
40
41 //INFOLOG( "INIT" );
42 int w = 624;
43 int h = 265;
44 resize( w, h );
45
46 bool ok = m_background.load( Skin::getImagePath() + "/waveDisplay/mainsamplewavedisplay.png" );
47 if( ok == false ){
48 ERRORLOG( "Error loading pixmap" );
49 }
50
51 m_pPeakDatal = new int[ w ];
52 m_pPeakDatar = new int[ w ];
53
54 m_pStartFramePosition = 25;
55 m_pLoopFramePosition = 25;
56 m_pEndFramePosition = width() -25;
57 m_pmove = false;
58 m_plocator = -1;
59 m_pupdateposi = false;
60
61 __startsliderismoved = false;
62 __loopsliderismoved = false;
63 __endsliderismoved = false;
64 }
65
66
67
68
~MainSampleWaveDisplay()69 MainSampleWaveDisplay::~MainSampleWaveDisplay()
70 {
71 //INFOLOG( "DESTROY" );
72
73 delete[] m_pPeakDatal;
74 delete[] m_pPeakDatar;
75 }
76
paintLocatorEvent(int pos,bool updateposi)77 void MainSampleWaveDisplay::paintLocatorEvent( int pos, bool updateposi)
78 {
79 m_pupdateposi = updateposi;
80 if ( !updateposi ){
81 m_plocator = -1;
82 }else
83 {
84 m_plocator = pos;
85 }
86 update();
87 }
88
paintEvent(QPaintEvent * ev)89 void MainSampleWaveDisplay::paintEvent(QPaintEvent *ev)
90 {
91 QPainter painter( this );
92 painter.setRenderHint( QPainter::HighQualityAntialiasing );
93
94 bool issmaller = false;
95
96 painter.drawPixmap( ev->rect(), m_background, ev->rect() );
97 painter.setPen( QColor( 230, 230, 230 ) );
98 int VCenterl = height() / 4;
99 int VCenterr = height() / 4 + height() / 2;
100
101 if ( width() >= m_pSampleLength ) issmaller = true;
102
103 for ( int x = 25; x < width() -25; x++ ) {
104 if ( !issmaller || x <= m_pSampleLength){
105 painter.drawLine( x, -m_pPeakDatal[x -25] +VCenterl, x, -m_pPeakDatal[x -24] +VCenterl );
106 painter.drawLine( x, -m_pPeakDatar[x -25] +VCenterr, x, -m_pPeakDatar[x -24] +VCenterr );
107 }else
108 {
109 painter.drawLine( x, 0 +VCenterl, x, 0 +VCenterl );
110 painter.drawLine( x, 0 +VCenterr, x, 0 +VCenterr );
111 }
112
113 }
114
115
116 painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
117
118 painter.setPen( QPen( QColor( 255, 255, 255 ), 1, Qt::DotLine ) );
119 painter.drawLine( 23, 4, 23, height() -4 );
120 painter.drawLine( width() -23, 4,width() -23, height() -4 );
121 painter.setPen( QPen( QColor( 255, 255, 255 ), 1, Qt::SolidLine ) );
122 painter.drawLine( m_plocator, 4, m_plocator, height() -4);
123 painter.drawLine( 0, VCenterl, width(),VCenterl );
124 painter.drawLine( 0, VCenterr, width(),VCenterr );
125
126 QFont font;
127 font.setWeight( 63 );
128 painter.setFont( font );
129 //start frame pointer
130 painter.setPen( QColor( 32, 173, 0, 200 ) );
131 painter.drawLine( m_pStartFramePosition, 4, m_pStartFramePosition, height() -4 );
132 painter.drawText( m_pStartFramePosition -10, 250, 10,20, Qt::AlignRight, "S" );
133 //endframe pointer
134 painter.setPen( QColor( 217, 68, 0, 200 ) );
135 painter.drawLine( m_pEndFramePosition, 4, m_pEndFramePosition, height() -4 );
136 painter.drawText( m_pEndFramePosition -10, 123, 10, 20, Qt::AlignRight, "E" );
137 //loopframe pointer
138 painter.setPen( QColor( 93, 170, 254, 200 ) );
139 painter.drawLine( m_pLoopFramePosition, 4, m_pLoopFramePosition, height() -4 );
140 painter.drawText( m_pLoopFramePosition , 0, 10, 20, Qt::AlignLeft, "L" );
141
142
143 }
144
145
146
updateDisplayPointer()147 void MainSampleWaveDisplay::updateDisplayPointer()
148 {
149 update();
150 }
151
152
153
updateDisplay(const QString & filename)154 void MainSampleWaveDisplay::updateDisplay( const QString& filename )
155 {
156
157 Sample *pNewSample = Sample::load( filename );
158
159 if ( pNewSample ) {
160
161 int nSampleLength = pNewSample->get_frames();
162 m_pSampleLength = nSampleLength;
163 float nScaleFactor = nSampleLength / (width() -50);
164 if ( nScaleFactor < 1 ){
165 nScaleFactor = 1;
166 }
167
168 float fGain = height() / 4.0 * 1.0;
169
170 float *pSampleDatal = pNewSample->get_data_l();
171 float *pSampleDatar = pNewSample->get_data_r();
172
173 unsigned nSamplePos = 0;
174 int nVall = 0;
175 int nValr = 0;
176 int newVall = 0;
177 int newValr = 0;
178 for ( int i = 0; i < width(); ++i ){
179 for ( int j = 0; j < nScaleFactor; ++j ) {
180 if ( j < nSampleLength && nSamplePos < nSampleLength) {
181 if ( pSampleDatal[ nSamplePos ] && pSampleDatar[ nSamplePos ] ){
182 newVall = static_cast<int>( pSampleDatal[ nSamplePos ] * fGain );
183 newValr = static_cast<int>( pSampleDatar[ nSamplePos ] * fGain );
184 nVall = newVall;
185 nValr = newValr;
186 }else
187 {
188 nVall = 0;
189 nValr = 0;
190 }
191 }
192 ++nSamplePos;
193 }
194 m_pPeakDatal[ i ] = nVall;
195 m_pPeakDatar[ i ] = nValr;
196 }
197 }
198 delete pNewSample;
199 pNewSample = nullptr;
200 update();
201
202 }
203
mouseMoveEvent(QMouseEvent * ev)204 void MainSampleWaveDisplay::mouseMoveEvent(QMouseEvent *ev)
205 {
206 testPosition( ev );
207 update();
208 }
209
mousePressEvent(QMouseEvent * ev)210 void MainSampleWaveDisplay::mousePressEvent(QMouseEvent *ev)
211 {
212 testPosition( ev );
213 update();
214 }
215
testPosition(QMouseEvent * ev)216 void MainSampleWaveDisplay::testPosition( QMouseEvent *ev )
217 {
218 assert(ev);
219
220 //startframepointer
221 if (ev->y()>=200 ) {
222 m_pStartFramePosition = ev->x() ;
223 __startsliderismoved = true;
224 if ( m_pStartFramePosition > m_pLoopFramePosition ){
225 m_pLoopFramePosition = m_pStartFramePosition;
226 __loopsliderismoved = true;
227 }
228 if ( m_pStartFramePosition > m_pEndFramePosition ){
229 m_pEndFramePosition = m_pStartFramePosition;
230 __endsliderismoved = true;
231 }
232 // update();
233 }
234
235 //loopframeposition
236 else if (ev->y()<=65 ) {
237 m_pLoopFramePosition = ev->x() ;
238 __loopsliderismoved = true;
239 if ( m_pLoopFramePosition < m_pStartFramePosition ){
240 m_pStartFramePosition = m_pLoopFramePosition;
241 __startsliderismoved = true;
242 }
243 if ( m_pLoopFramePosition > m_pEndFramePosition ){
244 m_pEndFramePosition = m_pLoopFramePosition;
245 __endsliderismoved = true;
246 }
247 // update();
248 }
249 //endframeposition
250 else if ( ev->y() >= 86 && ev->y() <= 179 ) {
251 m_pEndFramePosition = ev->x() ;
252 __endsliderismoved = true;
253 if ( m_pEndFramePosition < m_pLoopFramePosition ){
254 m_pLoopFramePosition = m_pEndFramePosition;
255 __loopsliderismoved = true;
256 }
257 if ( m_pEndFramePosition < m_pStartFramePosition ){
258 m_pStartFramePosition = m_pEndFramePosition;
259 __startsliderismoved = true;
260 }
261 // update();
262 }
263
264 if ( ( m_pStartFramePosition ) >= width() -25 ) m_pStartFramePosition =width() -25;
265 if ( ( m_pLoopFramePosition ) >= width() -25 ) m_pLoopFramePosition =width() -25;
266 if ( ( m_pEndFramePosition ) >= width() -25 ) m_pEndFramePosition =width() -25;
267 if ( ( m_pStartFramePosition ) <= 25 ) m_pStartFramePosition = 25;
268 if ( ( m_pLoopFramePosition ) <= 25 ) m_pLoopFramePosition = 25;
269 if ( ( m_pEndFramePosition ) <= 25 ) m_pEndFramePosition = 25;
270 }
271
272
mouseReleaseEvent(QMouseEvent * ev)273 void MainSampleWaveDisplay::mouseReleaseEvent(QMouseEvent *ev)
274 {
275 update();
276 bool test = HydrogenApp::get_instance()->getSampleEditor()->returnAllMainWaveDisplayValues();
277
278 if (test){
279 __startsliderismoved = false;
280 __loopsliderismoved = false;
281 __endsliderismoved = false;
282 }
283 }
284
285
286
287
