session_view.h

/*
 * Copyright © 2014-2023 Synthstrom Audible Limited
 *
 * This file is part of The Synthstrom Audible Deluge Firmware.
 *
 * The Synthstrom Audible Deluge Firmware is free software: you can redistribute it and/or modify it under the
 * terms of the GNU General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program.
 * If not, see <https://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include "definitions_cxx.hpp"
#include "gui/views/clip_navigation_timeline_view.h"
#include "hid/button.h"
#include "model/song/song.h"
#include "storage/flash_storage.h"
 
class Editor;
class InstrumentClip;
class AudioClip;
class Clip;
class ModelStack;
class ModelStackWithTimelineCounter;
 
enum SessionGridMode : uint8_t {
    SessionGridModeEdit,
    SessionGridModeLaunch,
    SessionGridModeMacros,
    SessionGridModeMaxElement // Keep as boundary
};
 
extern float getTransitionProgress();
 
constexpr uint32_t kGridHeight = kDisplayHeight;
 
class SessionView final : public ClipNavigationTimelineView {
public:
    SessionView();
    bool getGreyoutColsAndRows(uint32_t* cols, uint32_t* rows) override;
    bool opened() override;
    void focusRegained() override;
 
    ActionResult buttonAction(deluge::hid::Button b, bool on, bool inCardRoutine) override;
    ActionResult clipCreationButtonPressed(hid::Button i, bool on, bool routine);
    ActionResult padAction(int32_t x, int32_t y, int32_t velocity) override;
    ActionResult horizontalEncoderAction(int32_t offset) override;
    ActionResult verticalEncoderAction(int32_t offset, bool inCardRoutine) override;
    bool renderSidebar(uint32_t whichRows, RGB image[][kDisplayWidth + kSideBarWidth],
                       uint8_t occupancyMask[][kDisplayWidth + kSideBarWidth]) override;
    void removeClip(Clip* clip);
    void redrawClipsOnScreen(bool doRender = true);
    uint32_t getMaxZoom() override;
    void cloneClip(uint8_t yDisplayFrom, uint8_t yDisplayTo);
    bool renderRow(ModelStack* modelStack, uint8_t yDisplay, RGB thisImage[kDisplayWidth + kSideBarWidth],
                   uint8_t thisOccupancyMask[kDisplayWidth + kSideBarWidth], bool drawUndefinedArea = true);
    void graphicsRoutine() override;
    int32_t displayLoopsRemainingPopup(bool ephemeral = false);
    void potentiallyRenderClipLaunchPlayhead(bool reallyNoTickSquare, int32_t sixteenthNotesRemaining);
    void requestRendering(UI* ui, uint32_t whichMainRows = 0xFFFFFFFF, uint32_t whichSideRows = 0xFFFFFFFF);
 
    int32_t getClipPlaceOnScreen(Clip* clip);
    void drawStatusSquare(uint8_t yDisplay, RGB thisImage[]);
    void drawSectionSquare(uint8_t yDisplay, RGB thisImage[]);
    bool calculateZoomPinSquares(uint32_t oldScroll, uint32_t newScroll, uint32_t newZoom, uint32_t oldZoom) override;
    uint32_t getMaxLength() override;
    bool setupScroll(uint32_t oldScroll) override;
    uint32_t getClipLocalScroll(Clip* loopable, uint32_t overviewScroll, uint32_t xZoom);
    void flashPlayRoutine();
 
    void modEncoderButtonAction(uint8_t whichModEncoder, bool on) override;
    void modButtonAction(uint8_t whichButton, bool on) override;
    void selectEncoderAction(int8_t offset) override;
    ActionResult timerCallback() override;
    void noteRowChanged(InstrumentClip* clip, NoteRow* noteRow) override;
    void setLedStates();
    void editNumRepeatsTilLaunch(int32_t offset);
    uint32_t getGreyedOutRowsNotRepresentingOutput(Output* output) override;
    bool renderMainPads(uint32_t whichRows, RGB image[][kDisplayWidth + kSideBarWidth],
                        uint8_t occupancyMask[][kDisplayWidth + kSideBarWidth], bool drawUndefinedArea = true) override;
    void midiLearnFlash() override;
 
    void transitionToViewForClip(Clip* clip = nullptr);
    void transitionToSessionView();
    void finishedTransitioningHere();
    void playbackEnded() override;
    void clipNeedsReRendering(Clip* clip) override;
    void sampleNeedsReRendering(Sample* sample) override;
    Clip* getClipOnScreen(int32_t yDisplay);
    Output* getOutputFromPad(int32_t x, int32_t y);
    void modEncoderAction(int32_t whichModEncoder, int32_t offset) override;
    ActionResult verticalScrollOneSquare(int32_t direction);
 
    void renderOLED(deluge::hid::display::oled_canvas::Canvas& canvas) override;
 
    // 7SEG only
    void redrawNumericDisplay();
    void clearNumericDisplay();
    void displayRepeatsTilLaunch();
 
    uint32_t selectedClipTimePressed;
    uint8_t selectedClipYDisplay;      // Where the clip is on screen
    uint8_t selectedClipPressYDisplay; // Where the user's finger actually is on screen
    uint8_t selectedClipPressXDisplay;
    bool clipWasSelectedWithShift; // Whether shift was held when clip pad started to be held
    bool performActionOnPadRelease;
    bool performActionOnSectionPadRelease; // Keep this separate from the above one because we don't want a mod encoder
                                           // action to set this to false
    uint8_t sectionPressed;
    uint8_t masterCompEditMode;
    int8_t selectedMacro = -1;
 
    Clip* getClipForLayout();
    int32_t getClipIndexForLayout();
 
    void copyClipName(Clip* source, Clip* target, Output* targetOutput);
 
    // Members for grid layout
    inline bool gridFirstPadActive() { return (gridFirstPressedX != -1 && gridFirstPressedY != -1); }
    ActionResult gridHandlePads(int32_t x, int32_t y, int32_t on);
    ActionResult gridHandleScroll(int32_t offsetX, int32_t offsetY);
 
    // ui
    UIType getUIType() override { return UIType::SESSION; }
 
    Clip* createNewClip(OutputType outputType, int32_t yDisplay);
    bool createClip{false};
    OutputType lastTypeCreated{OutputType::NONE};
 
    // Grid macros config mode
    void enterMacrosConfigMode();
    void exitMacrosConfigMode();
    char const* getMacroKindString(SessionMacroKind kind);
 
    // Midi learn mode
    void enterMidiLearnMode();
    void exitMidiLearnMode();
 
    // display tempo
    void displayPotentialTempoChange(UI* ui);
    void displayTempoBPM(deluge::hid::display::oled_canvas::Canvas& canvas, StringBuf& tempoBPM, bool clearArea);
    float lastDisplayedTempo = 0;
 
    // display root note and scale name
    void displayCurrentRootNoteAndScaleName(deluge::hid::display::oled_canvas::Canvas& canvas,
                                            StringBuf& rootNoteAndScaleName, bool clearArea);
    int16_t lastDisplayedRootNote = 0;
 
    // convert instrument clip to audio clip
    void replaceInstrumentClipWithAudioClip(Clip* clip);
 
    // pulse selected clip in grid view
    void gridPulseSelectedClip();
 
private:
    // These and other (future) commandXXX methods perform actions triggered by HID, but contain
    // no dispatch logic.
    //
    // selectEncoderAction() triggered commands
    void commandChangeSectionRepeats(int8_t offset);
    void commandChangeClipPreset(int8_t offset);
    void commandChangeCurrentSectionRepeats(int8_t offset);
    void commandChangeLayout(int8_t offset);
 
private:
    void renderViewDisplay();
    void sectionPadAction(uint8_t y, bool on);
    void clipPressEnded();
    void drawSectionRepeatNumber();
    void beginEditingSectionRepeatsNum();
    void goToArrangementEditor();
    void rowNeedsRenderingDependingOnSubMode(int32_t yDisplay);
    void setCentralLEDStates();
 
    Clip* createNewAudioClip(int32_t yDisplay);
    Clip* createNewInstrumentClip(OutputType outputType, int32_t yDisplay);
 
    bool createNewTrackForAudioClip(AudioClip* newClip);
    bool createNewTrackForInstrumentClip(OutputType type, InstrumentClip* clip, bool copyDrumsFromClip);
 
    bool insertAndResyncNewClip(Clip* newClip, int32_t yDisplay);
    void resyncNewClip(Clip* newClip, ModelStackWithTimelineCounter* modelStackWithTimelineCounter);
 
    // Members regarding rendering different layouts
private:
    void selectLayout(int8_t offset);
    void renderLayoutChange(bool displayPopup = true);
    void selectSpecificLayout(SessionLayoutType layout);
    SessionLayoutType previousLayout;
    SessionGridMode previousGridModeActive;
 
    bool sessionButtonActive = false;
    bool sessionButtonUsed = false;
    bool horizontalEncoderPressed = false;
    bool viewingRecordArmingActive = false;
    // Members for grid layout
private:
    bool gridRenderSidebar(uint32_t whichRows, RGB image[][kDisplayWidth + kSideBarWidth],
                           uint8_t occupancyMask[][kDisplayWidth + kSideBarWidth]);
    void gridRenderActionModes(int32_t y, RGB image[][kDisplayWidth + kSideBarWidth],
                               uint8_t occupancyMask[][kDisplayWidth + kSideBarWidth]);
    bool gridRenderMainPads(uint32_t whichRows, RGB image[][kDisplayWidth + kSideBarWidth],
                            uint8_t occupancyMask[][kDisplayWidth + kSideBarWidth], bool drawUndefinedArea = true);
 
    RGB gridRenderClipColor(Clip* clip, int32_t x, int32_t y, bool renderPulse = true);
 
    ActionResult gridHandlePadsEdit(int32_t x, int32_t y, int32_t on, Clip* clip);
    ActionResult gridHandlePadsLaunch(int32_t x, int32_t y, int32_t on, Clip* clip);
    ActionResult gridHandlePadsLaunchImmediate(int32_t x, int32_t y, int32_t on, Clip* clip);
    ActionResult gridHandlePadsLaunchWithSelection(int32_t x, int32_t y, int32_t on, Clip* clip);
    void gridHandlePadsWithMidiLearnPressed(int32_t x, int32_t on, Clip* clip);
    ActionResult gridHandlePadsMacros(int32_t x, int32_t y, int32_t on, Clip* clip);
    void gridHandlePadsLaunchToggleArming(Clip* clip, bool immediate);
 
    void gridTransitionToSessionView();
    void gridTransitionToViewForClip(Clip* clip);
 
    SessionGridMode gridModeSelected = SessionGridModeEdit;
    SessionGridMode gridModeActive = SessionGridModeEdit;
    bool gridActiveModeUsed = false;
 
    int32_t gridFirstPressedX = -1;
    int32_t gridFirstPressedY = -1;
    int32_t gridSecondPressedX = -1;
    int32_t gridSecondPressedY = -1;
    inline bool gridSecondPadInactive() { return (gridSecondPressedX == -1 && gridSecondPressedY == -1); }
 
    inline void gridResetPresses(bool first = true, bool second = true) {
        if (first) {
            gridFirstPressedX = -1;
            gridFirstPressedY = -1;
        }
        if (second) {
            gridSecondPressedX = -1;
            gridSecondPressedY = -1;
        }
    }
 
    Clip* gridCloneClip(Clip* sourceClip);
    Clip* gridCreateClipInTrack(Output* targetOutput);
    AudioClip* gridCreateAudioClipWithNewTrack();
    InstrumentClip* gridCreateInstrumentClipWithNewTrack(OutputType type);
    Clip* gridCreateClip(uint32_t targetSection, Output* targetOutput = nullptr, Clip* sourceClip = nullptr);
    void gridClonePad(uint32_t sourceX, uint32_t sourceY, uint32_t targetX, uint32_t targetY);
    void setupNewClip(Clip* newClip);
 
    void gridStartSection(uint32_t section, bool instant);
    void gridToggleClipPlay(Clip* clip, bool instant);
 
    [[nodiscard]] const size_t gridTrackCount() const;
    uint32_t gridClipCountForTrack(Output* track);
    uint32_t gridTrackIndexFromTrack(Output* track, uint32_t maxTrack);
    Output* gridTrackFromIndex(uint32_t trackIndex, uint32_t maxTrack);
    int32_t gridYFromSection(uint32_t section);
    int32_t gridSectionFromY(uint32_t y);
    int32_t gridXFromTrack(uint32_t trackIndex);
    int32_t gridTrackIndexFromX(uint32_t x, uint32_t maxTrack);
    Output* gridTrackFromX(uint32_t x, uint32_t maxTrack);
    Clip* gridClipFromCoords(uint32_t x, uint32_t y);
    int32_t gridClipIndexFromCoords(uint32_t x, uint32_t y);
    Cartesian gridXYFromClip(Clip& clip);
 
    void gridSetDefaultMode() {
        switch (FlashStorage::defaultGridActiveMode) {
        case GridDefaultActiveModeGreen: {
            gridModeSelected = SessionGridModeLaunch;
            break;
        }
        case GridDefaultActiveModeBlue: {
            gridModeSelected = SessionGridModeEdit;
            break;
        }
        // explicit fallthrough cases
        case GridDefaultActiveModeSelection: // handled outside
        case GridDefaultActiveModeMaxElement:;
        }
    }
 
    void setupTrackCreation() const;
    void exitTrackCreation();
 
    // selected clip pulsing in grid view

    void gridStopSelectedClipPulsing();

    void gridResetSelectedClipPulseProgress();

    void gridSelectClipForPulsing(Clip& clip);

    bool gridCheckForPulseStop();
 
    bool gridSelectedClipPulsing = false;   // are we doing any pulsing
    Clip* selectedClipForPulsing = nullptr; // selected clip we are pulsing
    RGB gridSelectedClipRenderedColour;     // last pulse colour we rendered
    bool blendDirection = false;            // direction we're blending towards
    int32_t progress = 0;                   // pulse blend slider position
 
    static constexpr int32_t kMinProgress = 1;                           // min position to reach in blend slider
    static constexpr int32_t kMaxProgressFull = (65535 / 100) * 60;      // max position to reach for unmuted clip
    static constexpr int32_t kMaxProgressDim = 1000;                     // max position to reach for muted clip
    static constexpr int32_t kPulseRate = 50;                            // speed of timer in ms
    static constexpr int32_t kBlendRate = 60;                            // speed of blending colours
    static constexpr int32_t kBlendOffsetFull = kPulseRate * kBlendRate; // amount to move slider for unmuted clip
    static constexpr int32_t kBlendOffsetDim = kPulseRate;               // amount to move slider for muted clip
};
 
extern SessionView sessionView;