93 lines
4.1 KiB
C++
93 lines
4.1 KiB
C++
// sample_chrome.cpp — see sample_chrome.h. Pure math; no host types.
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#include "core/instrument/ui/sample_chrome.h"
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#include <algorithm>
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#include "core/instrument/ui/sample_bands.h" // kPad
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namespace reasampler::instrument::ui {
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namespace {
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// The toolbar row carries the whole control run, so it is taller than the Browse modal's
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// plain kTitleHeight bar — the velocity knob cell (knob over label) sets the floor. Both
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// rows still fit the band the allocator hands out (kTitleHeight + kChromeRowHeight).
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constexpr int kToolbarHeight = 44;
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constexpr int kStripBandHeight = 30;
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constexpr int kRunGap = 6; // between adjacent items of the toolbar run
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constexpr int kChanSegW = 52;
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constexpr int kChanSegH = 18;
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constexpr int kCurveBtnSize = 24;
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constexpr int kVelCellW = 44;
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constexpr int kVelLabelH = 12;
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constexpr int kPreviewBtnW = 64;
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constexpr int kRunButtonH = 24; // Browse and Preview
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} // namespace
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ChromeRects chromeRects(const Rect& chrome, int knobSize) {
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ChromeRects r;
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if (chrome.empty()) return r;
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const int toolbarH = std::min(kToolbarHeight, chrome.height);
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r.toolbar = Rect::ltrb(chrome.x, chrome.y, chrome.right(), chrome.y + toolbarH);
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r.controls = Rect::ltrb(chrome.x, r.toolbar.bottom(), chrome.right(), chrome.bottom());
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const Rect& row = r.toolbar;
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const auto topFor = [&row](int h) { return row.y + (row.height - h) / 2; };
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const auto leftOf = [&row](int edge, int w) { return std::max(row.x, edge - w); };
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// The fixed run, right to left: Browse, Mono|Stereo, curve, velocity cell, preview.
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const int navH = std::min(kRunButtonH, row.height);
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const int navTop = topFor(navH);
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const int navRight = std::max(row.x, row.right() - kPad);
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r.navBrowse = Rect::ltrb(leftOf(navRight, kNavButtonWidth), navTop, navRight,
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navTop + navH);
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const int chanTop = topFor(kChanSegH);
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const int chanRight = leftOf(r.navBrowse.x, kRunGap);
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r.chanStereo = Rect::ltrb(leftOf(chanRight, kChanSegW), chanTop, chanRight,
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chanTop + kChanSegH);
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r.chanMono = Rect::ltrb(leftOf(r.chanStereo.x, kChanSegW), chanTop, r.chanStereo.x,
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chanTop + kChanSegH);
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const int curveTop = topFor(kCurveBtnSize);
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const int curveRight = leftOf(r.chanMono.x, kRunGap);
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r.curveBtn = Rect::ltrb(leftOf(curveRight, kCurveBtnSize), curveTop, curveRight,
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curveTop + kCurveBtnSize);
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const int cellH = std::min(row.height, knobSize + kVelLabelH);
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const int cellTop = topFor(cellH);
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const int cellRight = leftOf(r.curveBtn.x, kRunGap);
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r.velCell = Rect::ltrb(leftOf(cellRight, kVelCellW), cellTop, cellRight, cellTop + cellH);
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const int knobLeft = r.velCell.x + (r.velCell.width - knobSize) / 2;
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r.velKnob = Rect::ltrb(knobLeft, r.velCell.y, knobLeft + knobSize,
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r.velCell.y + std::min(knobSize, cellH));
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r.velLabel = Rect::ltrb(r.velCell.x, r.velKnob.bottom(), r.velCell.right(),
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r.velCell.bottom());
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const int prevTop = topFor(std::min(kRunButtonH, row.height));
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const int prevRight = leftOf(r.velCell.x, kRunGap);
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r.preview = Rect::ltrb(leftOf(prevRight, kPreviewBtnW), prevTop, prevRight,
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prevTop + std::min(kRunButtonH, row.height));
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// The title takes what the run leaves; clamped so a narrow window collapses it rather
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// than inverting it.
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r.title = Rect::ltrb(row.x + kPad, row.y, std::max(row.x + kPad, r.preview.x - kRunGap),
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row.bottom());
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if (r.controls.empty()) return r;
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// The strip row belongs to the strip alone — inset only by the shared band pad, so it
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// lines up with the waveform band directly beneath it.
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const int stripH = std::min(kStripBandHeight, r.controls.height);
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const int stripTop = r.controls.y + (r.controls.height - stripH) / 2;
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r.rootStrip = Rect::ltrb(r.controls.x + kPad, stripTop,
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std::max(r.controls.x + kPad, r.controls.right() - kPad),
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stripTop + stripH);
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return r;
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}
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} // namespace reasampler::instrument::ui
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