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A fork of https://github.com/crosspoint-reader/crosspoint-reader
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5.6 kB · 140 lines
C++
at master
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141#include "XtcReaderChapterSelectionActivity.h"
#include <GfxRenderer.h>#include <I18n.h>
#include <algorithm>
#include "MappedInputManager.h"#include "components/UITheme.h"#include "fontIds.h"
int XtcReaderChapterSelectionActivity::getPageItems() const { constexpr int lineHeight = 30;
const int screenHeight = renderer.getScreenHeight(); const auto orientation = renderer.getOrientation(); // In inverted portrait, the hint row is drawn near the logical top. // Reserve vertical space so the list starts below the hints. const bool isPortraitInverted = orientation == GfxRenderer::Orientation::PortraitInverted; const int hintGutterHeight = isPortraitInverted ? 50 : 0; const int startY = 60 + hintGutterHeight; const int availableHeight = screenHeight - startY - lineHeight; // Clamp to at least one item to prevent empty page math. return std::max(1, availableHeight / lineHeight);}
int XtcReaderChapterSelectionActivity::findChapterIndexForPage(uint32_t page) const { if (!xtc) { return 0; }
const auto& chapters = xtc->getChapters(); for (size_t i = 0; i < chapters.size(); i++) { if (page >= chapters[i].startPage && page <= chapters[i].endPage) { return static_cast<int>(i); } } return 0;}
void XtcReaderChapterSelectionActivity::onEnter() { Activity::onEnter();
if (!xtc) { return; }
selectorIndex = findChapterIndexForPage(currentPage);
requestUpdate();}
void XtcReaderChapterSelectionActivity::onExit() { Activity::onExit(); }
void XtcReaderChapterSelectionActivity::loop() { const int pageItems = getPageItems(); const int totalItems = static_cast<int>(xtc->getChapters().size());
if (mappedInput.wasReleased(MappedInputManager::Button::Confirm)) { const auto& chapters = xtc->getChapters(); if (!chapters.empty() && selectorIndex >= 0 && selectorIndex < static_cast<int>(chapters.size())) { setResult(PageResult{chapters[selectorIndex].startPage}); finish(); } } else if (mappedInput.wasReleased(MappedInputManager::Button::Back)) { ActivityResult result; result.isCancelled = true; setResult(std::move(result)); finish(); }
buttonNavigator.onNextRelease([this, totalItems] { selectorIndex = ButtonNavigator::nextIndex(selectorIndex, totalItems); requestUpdate(); });
buttonNavigator.onPreviousRelease([this, totalItems] { selectorIndex = ButtonNavigator::previousIndex(selectorIndex, totalItems); requestUpdate(); });
buttonNavigator.onNextContinuous([this, totalItems, pageItems] { selectorIndex = ButtonNavigator::nextPageIndex(selectorIndex, totalItems, pageItems); requestUpdate(); });
buttonNavigator.onPreviousContinuous([this, totalItems, pageItems] { selectorIndex = ButtonNavigator::previousPageIndex(selectorIndex, totalItems, pageItems); requestUpdate(); });}
void XtcReaderChapterSelectionActivity::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; const int pageItems = getPageItems(); // Manual centering to honor content gutters. const int titleX = contentX + (contentWidth - renderer.getTextWidth(UI_12_FONT_ID, tr(STR_SELECT_CHAPTER), EpdFontFamily::BOLD)) / 2; renderer.drawText(UI_12_FONT_ID, titleX, 15 + contentY, tr(STR_SELECT_CHAPTER), true, EpdFontFamily::BOLD);
const auto& chapters = xtc->getChapters(); if (chapters.empty()) { // Center the empty state within the gutter-safe content region. const int emptyX = contentX + (contentWidth - renderer.getTextWidth(UI_10_FONT_ID, tr(STR_NO_CHAPTERS))) / 2; renderer.drawText(UI_10_FONT_ID, emptyX, 120 + contentY, tr(STR_NO_CHAPTERS)); renderer.displayBuffer(); return; }
const auto pageStartIndex = selectorIndex / pageItems * pageItems; // Highlight only the content area, not the hint gutters. renderer.fillRect(contentX, 60 + contentY + (selectorIndex % pageItems) * 30 - 2, contentWidth - 1, 30); for (int i = pageStartIndex; i < static_cast<int>(chapters.size()) && i < pageStartIndex + pageItems; i++) { const auto& chapter = chapters[i]; const char* title = chapter.name.empty() ? tr(STR_UNNAMED) : chapter.name.c_str(); renderer.drawText(UI_10_FONT_ID, contentX + 20, 60 + contentY + (i % pageItems) * 30, title, i != selectorIndex); }
// Skip button hints in landscape CW mode (they overlap content) if (renderer.getOrientation() != GfxRenderer::LandscapeClockwise) { const auto labels = mappedInput.mapLabels(tr(STR_BACK), tr(STR_SELECT), tr(STR_DIR_UP), tr(STR_DIR_DOWN)); GUI.drawButtonHints(renderer, labels.btn1, labels.btn2, labels.btn3, labels.btn4); }
renderer.displayBuffer();}