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annotate effects/pingpongdelay/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 Ping-Pong Delay: stereo delay alternating between channels
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 PingPongDelayAudioProcessorEditor::PingPongDelayAudioProcessorEditor (PingPongDelayAudioProcessor* ownerFilter)
andrewm@0 36 : AudioProcessorEditor (ownerFilter),
andrewm@0 37 delayLengthLeftLabel_("", "L-R Delay (sec):"),
andrewm@0 38 delayLengthRightLabel_("", "R-L Delay (sec):"),
andrewm@0 39 feedbackLabel_("", "Feedback:"),
andrewm@0 40 wetMixLabel_("", "Delayed Mix Level:")
andrewm@0 41 {
andrewm@0 42
andrewm@0 43 // Set up the sliders
andrewm@0 44 addAndMakeVisible (&delayLengthLeftSlider_);
andrewm@0 45 delayLengthLeftSlider_.setSliderStyle (Slider::Rotary);
andrewm@0 46 delayLengthLeftSlider_.addListener (this);
andrewm@0 47 delayLengthLeftSlider_.setRange (0.01, 2.0, 0.01);
andrewm@0 48
andrewm@0 49 addAndMakeVisible (&delayLengthRightSlider_);
andrewm@0 50 delayLengthRightSlider_.setSliderStyle (Slider::Rotary);
andrewm@0 51 delayLengthRightSlider_.addListener (this);
andrewm@0 52 delayLengthRightSlider_.setRange (0.01, 2.0, 0.01);
andrewm@0 53
andrewm@0 54 addAndMakeVisible (&feedbackSlider_);
andrewm@0 55 feedbackSlider_.setSliderStyle (Slider::Rotary);
andrewm@0 56 feedbackSlider_.addListener (this);
andrewm@0 57 feedbackSlider_.setRange (0.0, 0.995, 0.005);
andrewm@0 58
andrewm@0 59 addAndMakeVisible (&wetMixSlider_);
andrewm@0 60 wetMixSlider_.setSliderStyle (Slider::Rotary);
andrewm@0 61 wetMixSlider_.addListener (this);
andrewm@0 62 wetMixSlider_.setRange (0.0, 1.0, 0.01);
andrewm@0 63
andrewm@0 64 addAndMakeVisible(&linkDelaysButton_);
andrewm@0 65 linkDelaysButton_.setName("Link Delays");
andrewm@0 66 linkDelaysButton_.setButtonText("Link Delays");
andrewm@0 67 linkDelaysButton_.setToggleState(true, dontSendNotification);
andrewm@0 68 linkDelaysButton_.addListener(this);
andrewm@0 69
andrewm@0 70 addAndMakeVisible(&reverseChannelsButton_);
andrewm@0 71 reverseChannelsButton_.setName("Reverse Output Channels");
andrewm@0 72 reverseChannelsButton_.setButtonText("Reverse Output Channels");
andrewm@0 73 reverseChannelsButton_.setToggleState(false, dontSendNotification);
andrewm@0 74 reverseChannelsButton_.addListener(this);
andrewm@0 75
andrewm@0 76 linkDelays_ = true;
andrewm@0 77
andrewm@0 78 delayLengthLeftLabel_.attachToComponent(&delayLengthLeftSlider_, false);
andrewm@0 79 delayLengthLeftLabel_.setFont(Font (11.0f));
andrewm@0 80
andrewm@0 81 delayLengthRightLabel_.attachToComponent(&delayLengthRightSlider_, false);
andrewm@0 82 delayLengthRightLabel_.setFont(Font (11.0f));
andrewm@0 83
andrewm@0 84 feedbackLabel_.attachToComponent(&feedbackSlider_, false);
andrewm@0 85 feedbackLabel_.setFont(Font (11.0f));
andrewm@0 86
andrewm@0 87 wetMixLabel_.attachToComponent(&wetMixSlider_, false);
andrewm@0 88 wetMixLabel_.setFont(Font (11.0f));
andrewm@0 89
andrewm@0 90 // add the triangular resizer component for the bottom-right of the UI
andrewm@0 91 addAndMakeVisible(resizer_ = new ResizableCornerComponent (this, &resizeLimits_));
andrewm@0 92 resizeLimits_.setSizeLimits(500, 140, 500, 300);
andrewm@0 93
andrewm@0 94 // set our component's initial size to be the last one that was stored in the filter's settings
andrewm@0 95 setSize(ownerFilter->lastUIWidth_,
andrewm@0 96 ownerFilter->lastUIHeight_);
andrewm@0 97
andrewm@0 98 startTimer(50);
andrewm@0 99 }
andrewm@0 100
andrewm@0 101 PingPongDelayAudioProcessorEditor::~PingPongDelayAudioProcessorEditor()
andrewm@0 102 {
andrewm@0 103 }
andrewm@0 104
andrewm@0 105 //==============================================================================
andrewm@0 106 void PingPongDelayAudioProcessorEditor::paint (Graphics& g)
andrewm@0 107 {
andrewm@0 108 g.fillAll (Colours::grey);
andrewm@0 109 }
andrewm@0 110
andrewm@0 111 void PingPongDelayAudioProcessorEditor::resized()
andrewm@0 112 {
andrewm@0 113 delayLengthLeftSlider_.setBounds (20, 20, 150, 40);
andrewm@0 114 delayLengthRightSlider_.setBounds (200, 20, 150, 40);
andrewm@0 115 feedbackSlider_.setBounds (20, 80, 150, 40);
andrewm@0 116 wetMixSlider_.setBounds(200, 80, 150, 40);
andrewm@0 117 linkDelaysButton_.setBounds(380, 20, 100, 40);
andrewm@0 118 linkDelaysButton_.changeWidthToFitText();
andrewm@0 119 reverseChannelsButton_.setBounds(380, 80, 100, 40);
andrewm@0 120 reverseChannelsButton_.changeWidthToFitText();
andrewm@0 121
andrewm@0 122 resizer_->setBounds(getWidth() - 16, getHeight() - 16, 16, 16);
andrewm@0 123
andrewm@0 124 getProcessor()->lastUIWidth_ = getWidth();
andrewm@0 125 getProcessor()->lastUIHeight_ = getHeight();
andrewm@0 126 }
andrewm@0 127
andrewm@0 128 //==============================================================================
andrewm@0 129 // This timer periodically checks whether any of the filter's parameters have changed...
andrewm@0 130 void PingPongDelayAudioProcessorEditor::timerCallback()
andrewm@0 131 {
andrewm@0 132 PingPongDelayAudioProcessor* ourProcessor = getProcessor();
andrewm@0 133
andrewm@0 134 delayLengthLeftSlider_.setValue(ourProcessor->delayLengthLeft_, dontSendNotification);
andrewm@0 135 delayLengthRightSlider_.setValue(ourProcessor->delayLengthRight_, dontSendNotification);
andrewm@0 136 feedbackSlider_.setValue(ourProcessor->feedback_, dontSendNotification);
andrewm@0 137 wetMixSlider_.setValue(ourProcessor->wetMix_, dontSendNotification);
andrewm@0 138 reverseChannelsButton_.setToggleState(ourProcessor->reverseChannels_, dontSendNotification);
andrewm@0 139 }
andrewm@0 140
andrewm@0 141 // This is our Slider::Listener callback, when the user drags a slider.
andrewm@0 142 void PingPongDelayAudioProcessorEditor::sliderValueChanged (Slider* slider)
andrewm@0 143 {
andrewm@0 144 // It's vital to use setParameterNotifyingHost to change any parameters that are automatable
andrewm@0 145 // by the host, rather than just modifying them directly, otherwise the host won't know
andrewm@0 146 // that they've changed.
andrewm@0 147
andrewm@0 148 if (slider == &delayLengthLeftSlider_)
andrewm@0 149 {
andrewm@0 150 getProcessor()->setParameterNotifyingHost (PingPongDelayAudioProcessor::kDelayLengthLeftParam,
andrewm@0 151 (float)delayLengthLeftSlider_.getValue());
andrewm@0 152 if(linkDelays_)
andrewm@0 153 {
andrewm@0 154 // Set the other slider to match this value
andrewm@0 155 getProcessor()->setParameterNotifyingHost (PingPongDelayAudioProcessor::kDelayLengthRightParam,
andrewm@0 156 (float)delayLengthLeftSlider_.getValue());
andrewm@0 157 delayLengthRightSlider_.setValue(delayLengthLeftSlider_.getValue(), dontSendNotification);
andrewm@0 158 }
andrewm@0 159 }
andrewm@0 160 else if (slider == &delayLengthRightSlider_)
andrewm@0 161 {
andrewm@0 162 getProcessor()->setParameterNotifyingHost (PingPongDelayAudioProcessor::kDelayLengthRightParam,
andrewm@0 163 (float)delayLengthRightSlider_.getValue());
andrewm@0 164
andrewm@0 165 if(linkDelays_)
andrewm@0 166 {
andrewm@0 167 // Set the other slider to match this value
andrewm@0 168 getProcessor()->setParameterNotifyingHost (PingPongDelayAudioProcessor::kDelayLengthLeftParam,
andrewm@0 169 (float)delayLengthRightSlider_.getValue());
andrewm@0 170 delayLengthLeftSlider_.setValue(delayLengthRightSlider_.getValue(), dontSendNotification);
andrewm@0 171 }
andrewm@0 172 }
andrewm@0 173 else if (slider == &feedbackSlider_)
andrewm@0 174 {
andrewm@0 175 getProcessor()->setParameterNotifyingHost (PingPongDelayAudioProcessor::kFeedbackParam,
andrewm@0 176 (float)feedbackSlider_.getValue());
andrewm@0 177 }
andrewm@0 178 else if (slider == &wetMixSlider_)
andrewm@0 179 {
andrewm@0 180 getProcessor()->setParameterNotifyingHost (PingPongDelayAudioProcessor::kWetMixParam,
andrewm@0 181 (float)wetMixSlider_.getValue());
andrewm@0 182 }
andrewm@0 183 }
andrewm@0 184
andrewm@0 185 // Callback for toggle button
andrewm@0 186 void PingPongDelayAudioProcessorEditor::buttonClicked (Button *button)
andrewm@0 187 {
andrewm@0 188 if(button == &linkDelaysButton_)
andrewm@0 189 {
andrewm@0 190 linkDelays_ = button->getToggleState();
andrewm@0 191
andrewm@0 192 if(linkDelays_)
andrewm@0 193 {
andrewm@0 194 // Keep L and R delays equal, setting them to be if they aren't already
andrewm@0 195 PingPongDelayAudioProcessor* ourProcessor = getProcessor();
andrewm@0 196
andrewm@0 197 delayLengthRightSlider_.setValue(ourProcessor->delayLengthLeft_, dontSendNotification);
andrewm@0 198 ourProcessor->setParameterNotifyingHost(PingPongDelayAudioProcessor::kDelayLengthRightParam,
andrewm@0 199 ourProcessor->delayLengthLeft_);
andrewm@0 200 }
andrewm@0 201 }
andrewm@0 202 else if(button == &reverseChannelsButton_)
andrewm@0 203 {
andrewm@0 204 bool reverse = button->getToggleState();
andrewm@0 205
andrewm@0 206 if(reverse)
andrewm@0 207 getProcessor()->setParameterNotifyingHost(PingPongDelayAudioProcessor::kReverseChannelsParam, 1.0);
andrewm@0 208 else
andrewm@0 209 getProcessor()->setParameterNotifyingHost(PingPongDelayAudioProcessor::kReverseChannelsParam, 0.0);
andrewm@0 210 }
andrewm@0 211 }