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annotate effects/flanger/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 Flanger: flanging effect using time-varying delay
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 FlangerAudioProcessorEditor::FlangerAudioProcessorEditor (FlangerAudioProcessor* 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 feedbackLabel_("", "Feedback:"),
andrewm@0 41 frequencyLabel_("", "LFO Frequency:"),
andrewm@0 42 waveformLabel_("", "LFO Waveform:"),
andrewm@0 43 interpolationLabel_("", "Interpolation Type:")
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 (0.001, FlangerAudioProcessor::kMaximumDelay, 0.0005);
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 (.001, FlangerAudioProcessor::kMaximumSweepWidth, 0.0005);
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 (&feedbackSlider_);
andrewm@0 63 feedbackSlider_.setSliderStyle (Slider::Rotary);
andrewm@0 64 feedbackSlider_.addListener (this);
andrewm@0 65 feedbackSlider_.setRange (0.0, 0.5, 0.01);
andrewm@0 66
andrewm@0 67 addAndMakeVisible (&frequencySlider_);
andrewm@0 68 frequencySlider_.setSliderStyle (Slider::Rotary);
andrewm@0 69 frequencySlider_.addListener (this);
andrewm@0 70 frequencySlider_.setRange (0.05, 2.0, 0.025);
andrewm@0 71
andrewm@0 72 addAndMakeVisible(&waveformComboBox_);
andrewm@0 73 waveformComboBox_.setEditableText(false);
andrewm@0 74 waveformComboBox_.setJustificationType(Justification::left);
andrewm@0 75 waveformComboBox_.addItem("Sine", FlangerAudioProcessor::kWaveformSine);
andrewm@0 76 waveformComboBox_.addItem("Triangle", FlangerAudioProcessor::kWaveformTriangle);
andrewm@0 77 waveformComboBox_.addItem("Square", FlangerAudioProcessor::kWaveformSquare);
andrewm@0 78 waveformComboBox_.addItem("Sawtooth", FlangerAudioProcessor::kWaveformSawtooth);
andrewm@0 79 waveformComboBox_.addListener(this);
andrewm@0 80
andrewm@0 81 addAndMakeVisible(&interpolationComboBox_);
andrewm@0 82 interpolationComboBox_.setEditableText(false);
andrewm@0 83 interpolationComboBox_.setJustificationType(Justification::left);
andrewm@0 84 interpolationComboBox_.addItem("None", FlangerAudioProcessor::kInterpolationNearestNeighbour);
andrewm@0 85 interpolationComboBox_.addItem("Linear", FlangerAudioProcessor::kInterpolationLinear);
andrewm@0 86 interpolationComboBox_.addItem("Cubic", FlangerAudioProcessor::kInterpolationCubic);
andrewm@0 87 interpolationComboBox_.addListener(this);
andrewm@0 88
andrewm@0 89 addAndMakeVisible(&stereoToggleButton_);
andrewm@0 90 stereoToggleButton_.setName("Stereo");
andrewm@0 91 stereoToggleButton_.setButtonText("Stereo");
andrewm@0 92 stereoToggleButton_.addListener(this);
andrewm@0 93
andrewm@0 94 delayLabel_.attachToComponent(&delaySlider_, false);
andrewm@0 95 delayLabel_.setFont(Font (11.0f));
andrewm@0 96
andrewm@0 97 sweepWidthLabel_.attachToComponent(&sweepWidthSlider_, false);
andrewm@0 98 sweepWidthLabel_.setFont(Font (11.0f));
andrewm@0 99
andrewm@0 100 depthLabel_.attachToComponent(&depthSlider_, false);
andrewm@0 101 depthLabel_.setFont(Font (11.0f));
andrewm@0 102
andrewm@0 103 feedbackLabel_.attachToComponent(&feedbackSlider_, false);
andrewm@0 104 feedbackLabel_.setFont(Font (11.0f));
andrewm@0 105
andrewm@0 106 frequencyLabel_.attachToComponent(&frequencySlider_, false);
andrewm@0 107 frequencyLabel_.setFont(Font (11.0f));
andrewm@0 108
andrewm@0 109 waveformLabel_.attachToComponent(&waveformComboBox_, false);
andrewm@0 110 waveformLabel_.setFont(Font (11.0f));
andrewm@0 111
andrewm@0 112 interpolationLabel_.attachToComponent(&interpolationComboBox_, false);
andrewm@0 113 interpolationLabel_.setFont(Font (11.0f));
andrewm@0 114
andrewm@0 115 // add the triangular resizer component for the bottom-right of the UI
andrewm@0 116 addAndMakeVisible(resizer_ = new ResizableCornerComponent (this, &resizeLimits_));
andrewm@0 117 resizeLimits_.setSizeLimits(550, 200, 600, 300);
andrewm@0 118
andrewm@0 119 // set our component's initial size to be the last one that was stored in the filter's settings
andrewm@0 120 setSize(ownerFilter->lastUIWidth_,
andrewm@0 121 ownerFilter->lastUIHeight_);
andrewm@0 122
andrewm@0 123 startTimer(50);
andrewm@0 124 }
andrewm@0 125
andrewm@0 126 FlangerAudioProcessorEditor::~FlangerAudioProcessorEditor()
andrewm@0 127 {
andrewm@0 128 }
andrewm@0 129
andrewm@0 130 //==============================================================================
andrewm@0 131 void FlangerAudioProcessorEditor::paint (Graphics& g)
andrewm@0 132 {
andrewm@0 133 g.fillAll (Colours::grey);
andrewm@0 134 }
andrewm@0 135
andrewm@0 136 void FlangerAudioProcessorEditor::resized()
andrewm@0 137 {
andrewm@0 138 delaySlider_.setBounds (20, 20, 150, 40);
andrewm@0 139 sweepWidthSlider_.setBounds (200, 20, 150, 40);
andrewm@0 140 depthSlider_.setBounds(380, 20, 150, 40);
andrewm@0 141 feedbackSlider_.setBounds(20, 80, 150, 40);
andrewm@0 142 frequencySlider_.setBounds(200, 80, 150, 40);
andrewm@0 143 waveformComboBox_.setBounds(20, 140, 200, 30);
andrewm@0 144 interpolationComboBox_.setBounds(250, 140, 200, 30);
andrewm@0 145 stereoToggleButton_.setBounds(380, 80, 150, 40);
andrewm@0 146 stereoToggleButton_.changeWidthToFitText();
andrewm@0 147
andrewm@0 148 resizer_->setBounds(getWidth() - 16, getHeight() - 16, 16, 16);
andrewm@0 149
andrewm@0 150 getProcessor()->lastUIWidth_ = getWidth();
andrewm@0 151 getProcessor()->lastUIHeight_ = getHeight();
andrewm@0 152 }
andrewm@0 153
andrewm@0 154 //==============================================================================
andrewm@0 155 // This timer periodically checks whether any of the filter's parameters have changed...
andrewm@0 156 void FlangerAudioProcessorEditor::timerCallback()
andrewm@0 157 {
andrewm@0 158 FlangerAudioProcessor* ourProcessor = getProcessor();
andrewm@0 159
andrewm@0 160 delaySlider_.setValue(ourProcessor->delay_, dontSendNotification);
andrewm@0 161 sweepWidthSlider_.setValue(ourProcessor->sweepWidth_, dontSendNotification);
andrewm@0 162 depthSlider_.setValue(ourProcessor->depth_, dontSendNotification);
andrewm@0 163 feedbackSlider_.setValue(ourProcessor->feedback_, dontSendNotification);
andrewm@0 164 frequencySlider_.setValue(ourProcessor->frequency_, dontSendNotification);
b@1 165 waveformComboBox_.setSelectedId(ourProcessor->waveform_, dontSendNotification);
b@1 166 interpolationComboBox_.setSelectedId(ourProcessor->interpolation_, dontSendNotification);
b@1 167 stereoToggleButton_.setToggleState((ourProcessor->stereo_ != 0), dontSendNotification);
andrewm@0 168 }
andrewm@0 169
andrewm@0 170 // This is our Slider::Listener callback, when the user drags a slider.
andrewm@0 171 void FlangerAudioProcessorEditor::sliderValueChanged (Slider* slider)
andrewm@0 172 {
andrewm@0 173 // It's vital to use setParameterNotifyingHost to change any parameters that are automatable
andrewm@0 174 // by the host, rather than just modifying them directly, otherwise the host won't know
andrewm@0 175 // that they've changed.
andrewm@0 176
andrewm@0 177 if (slider == &delaySlider_)
andrewm@0 178 {
andrewm@0 179 getProcessor()->setParameterNotifyingHost (FlangerAudioProcessor::kDelayParam,
andrewm@0 180 (float)delaySlider_.getValue());
andrewm@0 181 }
andrewm@0 182 else if (slider == &sweepWidthSlider_)
andrewm@0 183 {
andrewm@0 184 getProcessor()->setParameterNotifyingHost (FlangerAudioProcessor::kSweepWidthParam,
andrewm@0 185 (float)sweepWidthSlider_.getValue());
andrewm@0 186 }
andrewm@0 187 else if (slider == &depthSlider_)
andrewm@0 188 {
andrewm@0 189 getProcessor()->setParameterNotifyingHost (FlangerAudioProcessor::kDepthParam,
andrewm@0 190 (float)depthSlider_.getValue());
andrewm@0 191 }
andrewm@0 192 else if (slider == &feedbackSlider_)
andrewm@0 193 {
andrewm@0 194 getProcessor()->setParameterNotifyingHost (FlangerAudioProcessor::kFeedbackParam,
andrewm@0 195 (float)feedbackSlider_.getValue());
andrewm@0 196 }
andrewm@0 197 else if (slider == &frequencySlider_)
andrewm@0 198 {
andrewm@0 199 getProcessor()->setParameterNotifyingHost (FlangerAudioProcessor::kFrequencyParam,
andrewm@0 200 (float)frequencySlider_.getValue());
andrewm@0 201 }
andrewm@0 202 }
andrewm@0 203
andrewm@0 204 // Similar callback to sliderValueChanged for ComboBox updates
andrewm@0 205 void FlangerAudioProcessorEditor::comboBoxChanged (ComboBox *comboBox)
andrewm@0 206 {
andrewm@0 207 if(comboBox == &waveformComboBox_)
andrewm@0 208 {
andrewm@0 209 getProcessor()->setParameterNotifyingHost (FlangerAudioProcessor::kWaveformParam,
andrewm@0 210 (float)waveformComboBox_.getSelectedId());
andrewm@0 211 }
andrewm@0 212 else if(comboBox == &interpolationComboBox_)
andrewm@0 213 {
andrewm@0 214 getProcessor()->setParameterNotifyingHost (FlangerAudioProcessor::kInterpolationParam,
andrewm@0 215 (float)interpolationComboBox_.getSelectedId());
andrewm@0 216 }
andrewm@0 217 }
andrewm@0 218
andrewm@0 219 // Callback for toggle button
andrewm@0 220 void FlangerAudioProcessorEditor::buttonClicked (Button *button)
andrewm@0 221 {
andrewm@0 222 if(button == &stereoToggleButton_)
andrewm@0 223 {
andrewm@0 224 if(button->getToggleState())
andrewm@0 225 getProcessor()->setParameterNotifyingHost (FlangerAudioProcessor::kStereoParam, 1.0);
andrewm@0 226 else
andrewm@0 227 getProcessor()->setParameterNotifyingHost (FlangerAudioProcessor::kStereoParam, 0.0);
andrewm@0 228 }
andrewm@0 229 }