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A fork of https://github.com/crosspoint-reader/crosspoint-reader
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4.0 kB · 110 lines
C++
at master
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111#include "EpubReaderFootnotesActivity.h"
#include <GfxRenderer.h>#include <I18n.h>
#include <algorithm>
#include "MappedInputManager.h"#include "components/UITheme.h"#include "fontIds.h"
void EpubReaderFootnotesActivity::onEnter() { Activity::onEnter(); selectedIndex = 0; requestUpdate();}
void EpubReaderFootnotesActivity::onExit() { Activity::onExit(); }
void EpubReaderFootnotesActivity::loop() { if (mappedInput.wasReleased(MappedInputManager::Button::Back)) { ActivityResult result; result.isCancelled = true; setResult(std::move(result)); finish(); return; }
if (mappedInput.wasReleased(MappedInputManager::Button::Confirm)) { if (selectedIndex >= 0 && selectedIndex < static_cast<int>(footnotes.size())) { setResult(FootnoteResult{footnotes[selectedIndex].href}); finish(); } return; }
buttonNavigator.onNext([this] { if (!footnotes.empty()) { selectedIndex = (selectedIndex + 1) % footnotes.size(); requestUpdate(); } });
buttonNavigator.onPrevious([this] { if (!footnotes.empty()) { selectedIndex = (selectedIndex - 1 + footnotes.size()) % footnotes.size(); requestUpdate(); } });}
void EpubReaderFootnotesActivity::render(RenderLock&&) { renderer.clearScreen();
const auto pageWidth = renderer.getScreenWidth(); const auto orientation = renderer.getOrientation(); // Landscape orientation: reserve a horizontal gutter for button hints. const bool isLandscapeCw = orientation == GfxRenderer::Orientation::LandscapeClockwise; const bool isLandscapeCcw = orientation == GfxRenderer::Orientation::LandscapeCounterClockwise; // Inverted portrait: reserve vertical space for hints at the top. const bool isPortraitInverted = orientation == GfxRenderer::Orientation::PortraitInverted; const int hintGutterWidth = (isLandscapeCw || isLandscapeCcw) ? 30 : 0; // Landscape CW places hints on the left edge; CCW keeps them on the right. const int contentX = isLandscapeCw ? hintGutterWidth : 0; const int contentWidth = pageWidth - hintGutterWidth; const int hintGutterHeight = isPortraitInverted ? 50 : 0; const int contentY = hintGutterHeight;
// Manual centering to honor content gutters. const int titleX = contentX + (contentWidth - renderer.getTextWidth(UI_12_FONT_ID, tr(STR_FOOTNOTES), EpdFontFamily::BOLD)) / 2; renderer.drawText(UI_12_FONT_ID, titleX, 15 + contentY, tr(STR_FOOTNOTES), true, EpdFontFamily::BOLD);
if (footnotes.empty()) { renderer.drawCenteredText(UI_10_FONT_ID, 90 + contentY, tr(STR_NO_FOOTNOTES)); const auto labels = mappedInput.mapLabels(tr(STR_BACK), "", "", ""); GUI.drawButtonHints(renderer, labels.btn1, labels.btn2, labels.btn3, labels.btn4); renderer.displayBuffer(); return; }
constexpr int lineHeight = 36; const int screenWidth = renderer.getScreenWidth(); const int marginLeft = contentX + 20;
const int visibleCount = std::max(1, (renderer.getScreenHeight() - contentY) / lineHeight); if (selectedIndex < scrollOffset) scrollOffset = selectedIndex; if (selectedIndex >= scrollOffset + visibleCount) scrollOffset = selectedIndex - visibleCount + 1;
for (int i = scrollOffset; i < static_cast<int>(footnotes.size()) && i < scrollOffset + visibleCount; i++) { const int y = 60 + contentY + (i - scrollOffset) * lineHeight; const bool isSelected = (i == selectedIndex);
if (isSelected) { renderer.fillRect(0, y, screenWidth, lineHeight, true); }
// Show footnote number and abbreviated href std::string label = footnotes[i].number; if (label.empty()) { label = tr(STR_LINK); } renderer.drawText(UI_10_FONT_ID, marginLeft, y + 4, label.c_str(), !isSelected); }
const auto labels = mappedInput.mapLabels(tr(STR_BACK), tr(STR_SELECT), "", ""); GUI.drawButtonHints(renderer, labels.btn1, labels.btn2, labels.btn3, labels.btn4);
renderer.displayBuffer();}