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annotate effects/chorus/Source/PluginEditor.cpp @ 1:04e171d2a747 tip

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JUCE 4 compatible. Standardised paths on Mac: modules '../../juce/modules'; VST folder '~/SDKs/vstsdk2.4' (JUCE default). Replaced deprecated 'getSampleData(channel)'; getToggleState(...); setToggleState(...); setSelectedId(...). Removed unused variables. Ignore JUCE code and build files.
author Brecht De Man <b.deman@qmul.ac.uk>
date Sun, 22 Nov 2015 15:23:40 +0000
parents e32fe563e124
children
rev   line source
andrewm@0 1 /*
andrewm@0 2 This code accompanies the textbook:
andrewm@0 3
andrewm@0 4 Digital Audio Effects: Theory, Implementation and Application
andrewm@0 5 Joshua D. Reiss and Andrew P. McPherson
andrewm@0 6
andrewm@0 7 ---
andrewm@0 8
andrewm@0 9 Chorus: chorus effect based on time-varying delays
andrewm@0 10 See textbook Chapter 2: Delay Line Effects
andrewm@0 11
andrewm@0 12 Code by Andrew McPherson, Brecht de Man and Joshua Reiss
andrewm@0 13
andrewm@0 14 ---
andrewm@0 15
andrewm@0 16 This program is free software: you can redistribute it and/or modify
andrewm@0 17 it under the terms of the GNU General Public License as published by
andrewm@0 18 the Free Software Foundation, either version 3 of the License, or
andrewm@0 19 (at your option) any later version.
andrewm@0 20
andrewm@0 21 This program is distributed in the hope that it will be useful,
andrewm@0 22 but WITHOUT ANY WARRANTY; without even the implied warranty of
andrewm@0 23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
andrewm@0 24 GNU General Public License for more details.
andrewm@0 25
andrewm@0 26 You should have received a copy of the GNU General Public License
andrewm@0 27 along with this program. If not, see <http://www.gnu.org/licenses/>.
andrewm@0 28 */
andrewm@0 29
andrewm@0 30 #include "PluginProcessor.h"
andrewm@0 31 #include "PluginEditor.h"
andrewm@0 32
andrewm@0 33
andrewm@0 34 //==============================================================================
andrewm@0 35 ChorusAudioProcessorEditor::ChorusAudioProcessorEditor (ChorusAudioProcessor* ownerFilter)
andrewm@0 36 : AudioProcessorEditor (ownerFilter),
andrewm@0 37 delayLabel_("", "Min. Delay (sec):"),
andrewm@0 38 sweepWidthLabel_("", "Sweep Width (sec.):"),
andrewm@0 39 depthLabel_("", "Depth:"),
andrewm@0 40 frequencyLabel_("", "LFO Frequency:"),
andrewm@0 41 waveformLabel_("", "LFO Waveform:"),
andrewm@0 42 interpolationLabel_("", "Interpolation Type:"),
andrewm@0 43 numVoicesLabel_("", "Number of Voices:")
andrewm@0 44 {
andrewm@0 45
andrewm@0 46 // Set up the sliders
andrewm@0 47 addAndMakeVisible (&delaySlider_);
andrewm@0 48 delaySlider_.setSliderStyle (Slider::Rotary);
andrewm@0 49 delaySlider_.addListener (this);
andrewm@0 50 delaySlider_.setRange (.01, ChorusAudioProcessor::kMaximumDelay, 0.001);
andrewm@0 51
andrewm@0 52 addAndMakeVisible (&sweepWidthSlider_);
andrewm@0 53 sweepWidthSlider_.setSliderStyle (Slider::Rotary);
andrewm@0 54 sweepWidthSlider_.addListener (this);
andrewm@0 55 sweepWidthSlider_.setRange (.01, ChorusAudioProcessor::kMaximumSweepWidth, 0.001);
andrewm@0 56
andrewm@0 57 addAndMakeVisible (&depthSlider_);
andrewm@0 58 depthSlider_.setSliderStyle (Slider::Rotary);
andrewm@0 59 depthSlider_.addListener (this);
andrewm@0 60 depthSlider_.setRange (0.0, 1.0, 0.01);
andrewm@0 61
andrewm@0 62 addAndMakeVisible (&frequencySlider_);
andrewm@0 63 frequencySlider_.setSliderStyle (Slider::Rotary);
andrewm@0 64 frequencySlider_.addListener (this);
andrewm@0 65 frequencySlider_.setRange (0.05, 2.0, 0.025);
andrewm@0 66
andrewm@0 67 addAndMakeVisible(&waveformComboBox_);
andrewm@0 68 waveformComboBox_.setEditableText(false);
andrewm@0 69 waveformComboBox_.setJustificationType(Justification::left);
andrewm@0 70 waveformComboBox_.addItem("Sine", ChorusAudioProcessor::kWaveformSine);
andrewm@0 71 waveformComboBox_.addItem("Triangle", ChorusAudioProcessor::kWaveformTriangle);
andrewm@0 72 waveformComboBox_.addItem("Square", ChorusAudioProcessor::kWaveformSquare);
andrewm@0 73 waveformComboBox_.addItem("Sawtooth", ChorusAudioProcessor::kWaveformSawtooth);
andrewm@0 74 waveformComboBox_.addListener(this);
andrewm@0 75
andrewm@0 76 addAndMakeVisible(&interpolationComboBox_);
andrewm@0 77 interpolationComboBox_.setEditableText(false);
andrewm@0 78 interpolationComboBox_.setJustificationType(Justification::left);
andrewm@0 79 interpolationComboBox_.addItem("None", ChorusAudioProcessor::kInterpolationNearestNeighbour);
andrewm@0 80 interpolationComboBox_.addItem("Linear", ChorusAudioProcessor::kInterpolationLinear);
andrewm@0 81 interpolationComboBox_.addItem("Cubic", ChorusAudioProcessor::kInterpolationCubic);
andrewm@0 82 interpolationComboBox_.addListener(this);
andrewm@0 83
andrewm@0 84 addAndMakeVisible(&numVoicesComboBox_);
andrewm@0 85 numVoicesComboBox_.setEditableText(false);
andrewm@0 86 numVoicesComboBox_.setJustificationType(Justification::left);
andrewm@0 87 numVoicesComboBox_.addItem("2", 2);
andrewm@0 88 numVoicesComboBox_.addItem("3", 3);
andrewm@0 89 numVoicesComboBox_.addItem("4", 4);
andrewm@0 90 numVoicesComboBox_.addItem("5", 5);
andrewm@0 91 numVoicesComboBox_.addListener(this);
andrewm@0 92
andrewm@0 93 addAndMakeVisible(&stereoToggleButton_);
andrewm@0 94 stereoToggleButton_.setName("Stereo");
andrewm@0 95 stereoToggleButton_.setButtonText("Stereo");
andrewm@0 96 stereoToggleButton_.addListener(this);
andrewm@0 97
andrewm@0 98 delayLabel_.attachToComponent(&delaySlider_, false);
andrewm@0 99 delayLabel_.setFont(Font (11.0f));
andrewm@0 100
andrewm@0 101 sweepWidthLabel_.attachToComponent(&sweepWidthSlider_, false);
andrewm@0 102 sweepWidthLabel_.setFont(Font (11.0f));
andrewm@0 103
andrewm@0 104 depthLabel_.attachToComponent(&depthSlider_, false);
andrewm@0 105 depthLabel_.setFont(Font (11.0f));
andrewm@0 106
andrewm@0 107 frequencyLabel_.attachToComponent(&frequencySlider_, false);
andrewm@0 108 frequencyLabel_.setFont(Font (11.0f));
andrewm@0 109
andrewm@0 110 waveformLabel_.attachToComponent(&waveformComboBox_, false);
andrewm@0 111 waveformLabel_.setFont(Font (11.0f));
andrewm@0 112
andrewm@0 113 interpolationLabel_.attachToComponent(&interpolationComboBox_, false);
andrewm@0 114 interpolationLabel_.setFont(Font (11.0f));
andrewm@0 115
andrewm@0 116 numVoicesLabel_.attachToComponent(&numVoicesComboBox_, false);
andrewm@0 117 numVoicesLabel_.setFont(Font (11.0f));
andrewm@0 118
andrewm@0 119 // add the triangular resizer component for the bottom-right of the UI
andrewm@0 120 addAndMakeVisible(resizer_ = new ResizableCornerComponent (this, &resizeLimits_));
andrewm@0 121 resizeLimits_.setSizeLimits(550, 200, 600, 300);
andrewm@0 122
andrewm@0 123 // set our component's initial size to be the last one that was stored in the filter's settings
andrewm@0 124 setSize(ownerFilter->lastUIWidth_,
andrewm@0 125 ownerFilter->lastUIHeight_);
andrewm@0 126
andrewm@0 127 startTimer(50);
andrewm@0 128 }
andrewm@0 129
andrewm@0 130 ChorusAudioProcessorEditor::~ChorusAudioProcessorEditor()
andrewm@0 131 {
andrewm@0 132 }
andrewm@0 133
andrewm@0 134 //==============================================================================
andrewm@0 135 void ChorusAudioProcessorEditor::paint (Graphics& g)
andrewm@0 136 {
andrewm@0 137 g.fillAll (Colours::grey);
andrewm@0 138 }
andrewm@0 139
andrewm@0 140 void ChorusAudioProcessorEditor::resized()
andrewm@0 141 {
andrewm@0 142 delaySlider_.setBounds (20, 20, 150, 40);
andrewm@0 143 sweepWidthSlider_.setBounds (200, 20, 150, 40);
andrewm@0 144 depthSlider_.setBounds(380, 20, 150, 40);
andrewm@0 145 frequencySlider_.setBounds(20, 80, 150, 40);
andrewm@0 146 numVoicesComboBox_.setBounds(200, 80, 150, 30);
andrewm@0 147 waveformComboBox_.setBounds(20, 140, 200, 30);
andrewm@0 148 interpolationComboBox_.setBounds(250, 140, 200, 30);
andrewm@0 149 stereoToggleButton_.setBounds(380, 80, 150, 40);
andrewm@0 150 stereoToggleButton_.changeWidthToFitText();
andrewm@0 151
andrewm@0 152 resizer_->setBounds(getWidth() - 16, getHeight() - 16, 16, 16);
andrewm@0 153
andrewm@0 154 getProcessor()->lastUIWidth_ = getWidth();
andrewm@0 155 getProcessor()->lastUIHeight_ = getHeight();
andrewm@0 156 }
andrewm@0 157
andrewm@0 158 //==============================================================================
andrewm@0 159 // This timer periodically checks whether any of the filter's parameters have changed...
andrewm@0 160 void ChorusAudioProcessorEditor::timerCallback()
andrewm@0 161 {
andrewm@0 162 ChorusAudioProcessor* ourProcessor = getProcessor();
andrewm@0 163
andrewm@0 164 delaySlider_.setValue(ourProcessor->delay_, dontSendNotification);
andrewm@0 165 sweepWidthSlider_.setValue(ourProcessor->sweepWidth_, dontSendNotification);
andrewm@0 166 depthSlider_.setValue(ourProcessor->depth_, dontSendNotification);
andrewm@0 167 frequencySlider_.setValue(ourProcessor->frequency_, dontSendNotification);
b@1 168 waveformComboBox_.setSelectedId(ourProcessor->waveform_, dontSendNotification);
b@1 169 interpolationComboBox_.setSelectedId(ourProcessor->interpolation_, dontSendNotification);
b@1 170 numVoicesComboBox_.setSelectedId(ourProcessor->numVoices_, dontSendNotification);
b@1 171 stereoToggleButton_.setToggleState((ourProcessor->stereo_ != 0), dontSendNotification);
andrewm@0 172 }
andrewm@0 173
andrewm@0 174 // This is our Slider::Listener callback, when the user drags a slider.
andrewm@0 175 void ChorusAudioProcessorEditor::sliderValueChanged (Slider* slider)
andrewm@0 176 {
andrewm@0 177 // It's vital to use setParameterNotifyingHost to change any parameters that are automatable
andrewm@0 178 // by the host, rather than just modifying them directly, otherwise the host won't know
andrewm@0 179 // that they've changed.
andrewm@0 180
andrewm@0 181 if (slider == &delaySlider_)
andrewm@0 182 {
andrewm@0 183 getProcessor()->setParameterNotifyingHost (ChorusAudioProcessor::kDelayParam,
andrewm@0 184 (float)delaySlider_.getValue());
andrewm@0 185 }
andrewm@0 186 else if (slider == &sweepWidthSlider_)
andrewm@0 187 {
andrewm@0 188 getProcessor()->setParameterNotifyingHost (ChorusAudioProcessor::kSweepWidthParam,
andrewm@0 189 (float)sweepWidthSlider_.getValue());
andrewm@0 190 }
andrewm@0 191 else if (slider == &depthSlider_)
andrewm@0 192 {
andrewm@0 193 getProcessor()->setParameterNotifyingHost (ChorusAudioProcessor::kDepthParam,
andrewm@0 194 (float)depthSlider_.getValue());
andrewm@0 195 }
andrewm@0 196 else if (slider == &frequencySlider_)
andrewm@0 197 {
andrewm@0 198 getProcessor()->setParameterNotifyingHost (ChorusAudioProcessor::kFrequencyParam,
andrewm@0 199 (float)frequencySlider_.getValue());
andrewm@0 200 }
andrewm@0 201 }
andrewm@0 202
andrewm@0 203 // Similar callback to sliderValueChanged for ComboBox updates
andrewm@0 204 void ChorusAudioProcessorEditor::comboBoxChanged (ComboBox *comboBox)
andrewm@0 205 {
andrewm@0 206 if(comboBox == &waveformComboBox_)
andrewm@0 207 {
andrewm@0 208 getProcessor()->setParameterNotifyingHost (ChorusAudioProcessor::kWaveformParam,
andrewm@0 209 (float)waveformComboBox_.getSelectedId());
andrewm@0 210 }
andrewm@0 211 else if(comboBox == &interpolationComboBox_)
andrewm@0 212 {
andrewm@0 213 getProcessor()->setParameterNotifyingHost (ChorusAudioProcessor::kInterpolationParam,
andrewm@0 214 (float)interpolationComboBox_.getSelectedId());
andrewm@0 215 }
andrewm@0 216 else if(comboBox == &numVoicesComboBox_)
andrewm@0 217 {
andrewm@0 218 getProcessor()->setParameterNotifyingHost (ChorusAudioProcessor::kNumVoicesParam,
andrewm@0 219 (float)numVoicesComboBox_.getSelectedId());
andrewm@0 220 }
andrewm@0 221 }
andrewm@0 222
andrewm@0 223 // Callback for toggle button
andrewm@0 224 void ChorusAudioProcessorEditor::buttonClicked (Button *button)
andrewm@0 225 {
andrewm@0 226 if(button == &stereoToggleButton_)
andrewm@0 227 {
andrewm@0 228 if(button->getToggleState())
andrewm@0 229 {
andrewm@0 230 getProcessor()->setParameterNotifyingHost (ChorusAudioProcessor::kStereoParam, 1.0);
andrewm@0 231
andrewm@0 232 // Stereo chorus only makes sense with 3 or more voices (1 input, 2 delayed voices)
andrewm@0 233 if(numVoicesComboBox_.getSelectedId() == 2)
andrewm@0 234 {
andrewm@0 235 numVoicesComboBox_.setSelectedId(3);
andrewm@0 236 getProcessor()->setParameterNotifyingHost (ChorusAudioProcessor::kNumVoicesParam, 3);
andrewm@0 237 }
andrewm@0 238 numVoicesComboBox_.setItemEnabled(2, false);
andrewm@0 239 }
andrewm@0 240 else
andrewm@0 241 {
andrewm@0 242 getProcessor()->setParameterNotifyingHost (ChorusAudioProcessor::kStereoParam, 0.0);
andrewm@0 243 numVoicesComboBox_.setItemEnabled(2, true);
andrewm@0 244 }
andrewm@0 245 }
andrewm@0 246 }