211 lines
11 KiB
C++
211 lines
11 KiB
C++
// editor_internal.h — shared helpers for the ReaSamplerEditor TU family. Included ONLY by
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// the editor's own shell TUs (editor_session / editor_controls / editor_paint_* /
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// editor_input_* / editor_platform) — never a public seam. Holds the Rect<->kit adapters,
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// small draw primitives (knob face / title band), label helpers, and the velocity-curve box
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// derivation. All inline.
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#pragma once
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#include <algorithm>
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#include <cstdio>
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#include <string>
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#include <vector>
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#include "core/instrument/engine/velocity_curve.h" // VelocityCurve::Box (curveBoxFromRect)
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#include "core/instrument/map/sample_map.h" // SampleChoice / SampleRefs (sampleLabel)
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#include "core/instrument/ui/editor_geometry.h" // Rect (the shared sub-rect type)
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#include "core/instrument/ui/keyboard_strip.h" // noteName (the one note-naming source)
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#ifdef _WIN32
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#include "wdltypes.h"
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#include "lice/lice.h"
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#include "core/audio/peaks.h" // Envelope (drawEnvelope)
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#include "core/instrument/ui/capture_browser.h" // BrowserLayout / cardThumbnailRect (thumbBins)
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#include "core/instrument/ui/param_slider.h" // KnobGeometry / KnobArc (drawKnobFace)
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#include "core/ui/component_geometry.h" // KitBox / waveformColumnCount
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#include "core/ui/theme.h" // Role / InteractionState / KitColor / spectralColor
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#include "shell/panel/draw_kit.h" // the L1 draw kit: fillSurface/text/drawWaveform/toLice
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#endif
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namespace reasampler::vst {
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// Velocity-curve editor box metrics. The inset keeps node handles + the pick radius
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// inside the border so an endpoint at amp 0/1 stays grabbable; drag-off beyond
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// box+margin deletes the dragged node.
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inline constexpr int kVelCurveInset = 14;
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inline constexpr int kCurveDragOffMargin = 24;
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// The pure-module mapping Box for a drawn curve rect. Every consumer (paint, hit-test,
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// add, drag) derives it through this ONE formula, so drawn nodes and grabs never drift.
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inline instrument::engine::VelocityCurve::Box curveBoxFromRect(
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const instrument::ui::Rect& r) {
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return instrument::engine::VelocityCurve::Box{
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r.x + kVelCurveInset, r.y + kVelCurveInset,
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(std::max)(0, r.width - 2 * kVelCurveInset),
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(std::max)(0, r.height - 2 * kVelCurveInset)};
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}
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// A short MIDI-note label ("C4", "F#3"). The naming itself is the pure strip module's, so
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// a browser badge and a strip tooltip can never disagree about what a note is called.
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inline std::string noteLabel(int note) {
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return instrument::ui::noteName(note);
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}
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// A display name for a bank sample id: the snapshotted bank list first, then the
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// instance-owned ref's displayName (survives with the extension absent). "?" if neither
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// source knows the id.
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inline std::string sampleLabel(const std::vector<instrument::map::SampleChoice>& samples,
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const instrument::map::SampleRefs& refs,
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const std::string& id) {
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for (const instrument::map::SampleChoice& c : samples) {
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if (c.id == id) return c.displayName.empty() ? c.id : c.displayName;
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}
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for (const instrument::map::SampleRefEntry& e : refs) {
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if (e.sampleId == id && !e.displayName.empty()) return e.displayName;
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}
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return "?";
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}
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#ifdef _WIN32
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// The editor's own sub-rect type is `Rect` (editor_geometry); the kit draws against
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// `KitBox` (component_geometry). This is the single boundary that bridges them so every
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// draw routes through the shared kit (theme roles + draw_kit).
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inline ui::KitBox toKitBox(const instrument::ui::Rect& r) {
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return ui::KitBox{r.x, r.y, r.width, r.height};
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}
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// Kit text in a palette ROLE (the common case). Left/Right/Center via Align.
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inline void kitText(LICE_IBitmap* bmp, const instrument::ui::Rect& r, const char* s,
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Font font, ui::Role role, Align align = Align::Left) {
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text(bmp, toKitBox(r), s, font, role, align);
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}
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inline void kitTextCentered(LICE_IBitmap* bmp, const instrument::ui::Rect& r,
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const char* s, Font font, ui::Role role) {
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text(bmp, toKitBox(r), s, font, role, Align::Center);
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}
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// Draw a peak envelope in `r` through the kit's shared waveform primitive.
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inline void drawEnvelope(LICE_IBitmap* bmp, const instrument::ui::Rect& r,
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const audio::Envelope& env) {
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drawWaveform(bmp, toKitBox(r), env);
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}
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// The bin count a card's thumbnail is computed at: one bin per drawn pixel column (the
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// gap-free render comes from peaks::columnMinMax's exact partition).
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inline int thumbBins(const instrument::ui::BrowserLayout& layout) {
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return (std::max)(1, kWaveformOversample *
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ui::waveformColumnCount(toKitBox(
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instrument::ui::cardThumbnailRect(layout, 0))));
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}
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// Draws the title band with the live readout. The Browse modal draws its own back button in
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// place of the nav.
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inline void drawTitleBand(LICE_IBitmap* bmp, const instrument::ui::Rect& title,
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const std::string& readout) {
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fillSurface(bmp, toKitBox(title), ui::Role::BgPanel, ui::InteractionState::Rest);
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instrument::ui::Rect titleText =
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instrument::ui::Rect::ltrb(title.x + 8, title.y, title.right() - 8, title.bottom());
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kitText(bmp, titleText, readout.c_str(), Font::Title, ui::Role::TextPrimary);
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}
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// Stroke widths for the radial faces. The value arc is drawn as adjacent 1px AA arcs rather
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// than one thick primitive — LICE has no thick-arc call, and stacking radii is what keeps every
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// ring antialiased.
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inline constexpr int kKnobValueArcPx = 3;
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inline constexpr int kInnerDialArcPx = 2;
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inline constexpr int kKnobNeedlePx = 2;
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// Draws one radial knob face: param_slider owns the value<->angle map; this turns it into
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// LICE calls. LICE takes radians, and drawing the 7->5 o'clock sweep through the top needs
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// a continuous angle span, so degrees convert as (deg - 360) * pi/180, mapping 210..510
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// onto -150..+150 degrees.
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inline void drawKnobFace(LICE_IBitmap* bmp, const instrument::ui::Rect& knobRect,
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double value01, ui::InteractionState st) {
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using instrument::ui::KnobArc;
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using instrument::ui::KnobGeometry;
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using instrument::ui::KnobPoint;
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const KnobGeometry kg = instrument::ui::computeKnob(knobRect);
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if (kg.radius <= 1.0) return;
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constexpr double kDegToRad = 3.14159265358979323846 / 180.0;
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const KnobArc arc{}; // the default 7->5 o'clock sweep
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const float cx = static_cast<float>(kg.centerX);
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const float cy = static_cast<float>(kg.centerY);
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const float rOuter = static_cast<float>(kg.radius) - 0.5f;
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const bool disabled = (st == ui::InteractionState::Disabled);
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const bool hot = (st == ui::InteractionState::Dragging || st == ui::InteractionState::Hover);
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LICE_FillCircle(bmp, cx, cy, rOuter - 1.f, toLice(ui::roleColorState(ui::Role::BgCell, st)),
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1.0f, 0, true);
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// Track: the full sweep as a hairline arc (the dead 60-degree arc at the bottom stays bare).
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const float a0 = static_cast<float>((arc.startDeg - 360.0) * kDegToRad);
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const float a1 = static_cast<float>(
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(arc.startDeg + instrument::ui::knobSweepDeg(arc) - 360.0) * kDegToRad);
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LICE_Arc(bmp, cx, cy, rOuter, a0, a1, toLice(ui::roleColor(ui::Role::LineHairline)), 1.0f, 0,
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true);
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const double v = value01 < 0.0 ? 0.0 : (value01 > 1.0 ? 1.0 : value01);
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if (v > 0.0) {
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const float av = static_cast<float>(
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(arc.startDeg + v * instrument::ui::knobSweepDeg(arc) - 360.0) * kDegToRad);
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const ui::Role valueRole = disabled ? ui::Role::TextDim
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: (hot ? ui::Role::AccentHot : ui::Role::AccentPrimary);
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const LICE_pixel valueCol = toLice(ui::roleColor(valueRole));
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for (int i = 0; i < kKnobValueArcPx; ++i) {
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LICE_Arc(bmp, cx, cy, rOuter - static_cast<float>(i), a0, av, valueCol, 1.0f, 0, true);
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}
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}
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// Needle: from ~35% radius out to the rim at the value's angle. ThickFLine keeps the float
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// endpoints AND is always antialiased, so the needle is smooth at every angle.
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const KnobPoint tip = instrument::ui::knobNeedlePoint(kg, arc, v);
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const double ix = kg.centerX + (tip.x - kg.centerX) * 0.35;
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const double iy = kg.centerY + (tip.y - kg.centerY) * 0.35;
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const ui::Role needleRole = disabled ? ui::Role::TextDim : ui::Role::TextPrimary;
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LICE_ThickFLine(bmp, ix, iy, tip.x, tip.y, toLice(ui::roleColor(needleRole)), 1.0f, 0,
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kKnobNeedlePx);
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}
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// The concentric INNER dial: a second value on the same cell, drawn in the categorical
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// tertiary accent so it reads as a different KIND of control rather than a louder one — the
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// same purple the overlay traces the envelope in (curve_law.h owns the knot/dial pairing this
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// ties into). Shares the outer knob's value<->angle map (param_slider's), so both needles
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// point the same way for the same normalized value.
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inline void drawInnerDial(LICE_IBitmap* bmp, const instrument::ui::Rect& innerRect,
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double value01, ui::InteractionState st) {
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using instrument::ui::KnobArc;
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using instrument::ui::KnobGeometry;
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using instrument::ui::KnobPoint;
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const KnobGeometry kg = instrument::ui::computeKnob(innerRect);
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if (kg.radius <= 1.0) return;
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constexpr double kDegToRad = 3.14159265358979323846 / 180.0;
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const KnobArc arc{};
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const float cx = static_cast<float>(kg.centerX);
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const float cy = static_cast<float>(kg.centerY);
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const float r = static_cast<float>(kg.radius) - 0.5f;
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const bool disabled = (st == ui::InteractionState::Disabled);
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const bool hot = (st == ui::InteractionState::Dragging || st == ui::InteractionState::Hover);
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LICE_FillCircle(bmp, cx, cy, r - 1.f, toLice(ui::roleColorState(ui::Role::BgPanel, st)), 1.0f,
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0, true);
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const double v = value01 < 0.0 ? 0.0 : (value01 > 1.0 ? 1.0 : value01);
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const float a0 = static_cast<float>((arc.startDeg - 360.0) * kDegToRad);
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const float av = static_cast<float>(
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(arc.startDeg + v * instrument::ui::knobSweepDeg(arc) - 360.0) * kDegToRad);
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const ui::Role arcRole = disabled ? ui::Role::TextDim
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: (hot ? ui::Role::AccentHot : ui::Role::AccentTertiary);
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const LICE_pixel arcCol = toLice(ui::roleColor(arcRole));
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for (int i = 0; i < kInnerDialArcPx; ++i) {
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LICE_Arc(bmp, cx, cy, r - static_cast<float>(i), a0, av, arcCol, 1.0f, 0, true);
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}
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const KnobPoint tip = instrument::ui::knobNeedlePoint(kg, arc, v);
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LICE_FLine(bmp, static_cast<float>(kg.centerX), static_cast<float>(kg.centerY),
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static_cast<float>(tip.x), static_cast<float>(tip.y),
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toLice(ui::roleColor(disabled ? ui::Role::TextDim : ui::Role::AccentTertiary)),
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1.0f, 0, true);
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}
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#endif // _WIN32
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} // namespace reasampler::vst
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