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refactor: delete batch loading part

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Uyanide
2025-08-07 00:29:07 +02:00
parent 567baeeeab
commit 44f2753ae9
3 changed files with 47 additions and 59 deletions
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src/config.cpp
+2 -1
View File
@@ -1,7 +1,7 @@
/*
* @Author: Uyanide pywang0608@foxmail.com
* @Date: 2025-08-05 01:34:52
* @LastEditTime: 2025-08-06 02:34:10
* @LastEditTime: 2025-08-07 00:09:51
* @Description: Configuration manager.
*/
#include "config.h"
@@ -211,6 +211,7 @@ bool Config::isValidImageFile(const QString &filePath) {
static const QStringList validExtensions = {
".jpg",
".jpeg",
".jfif",
".png",
".bmp",
".gif",
src/images_carousel.cpp
+26 -39
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@@ -1,7 +1,7 @@
/*
* @Author: Uyanide pywang0608@foxmail.com
* @Date: 2025-08-05 01:22:53
* @LastEditTime: 2025-08-06 22:44:49
* @LastEditTime: 2025-08-07 00:22:29
* @Description: Animated carousel widget for displaying and selecting images.
*/
#include "images_carousel.h"
@@ -9,7 +9,9 @@
#include <pthread.h>
#include <qboxlayout.h>
#include <qdebug.h>
#include <qnamespace.h>
#include <qobject.h>
#include <qpixmap.h>
#include <QLabel>
#include <QMetaObject>
@@ -31,7 +33,6 @@ ImagesCarousel::ImagesCarousel(const double itemAspectRatio,
QWidget* parent)
: QWidget(parent),
ui(new Ui::ImagesCarousel),
m_updateTimer(new QTimer(this)),
m_itemWidth(itemWidth),
m_itemHeight(static_cast<int>(itemWidth / itemAspectRatio)),
m_itemFocusWidth(itemFocusWidth),
@@ -44,23 +45,19 @@ ImagesCarousel::ImagesCarousel(const double itemAspectRatio,
m_imagesLayout = dynamic_cast<QHBoxLayout*>(ui->scrollAreaWidgetContents->layout());
// Load initial images
connect(m_updateTimer,
&QTimer::timeout,
this,
&ImagesCarousel::_updateImages);
connect(this,
&ImagesCarousel::imagesLoaded,
this,
[this]() {
_focusCurrImage();
// exit(0); // for speed test
disconnect(this, &ImagesCarousel::imagesLoaded, this, nullptr);
});
m_updateTimer->start(100);
// Auto focus when scrolling
m_scrollDebounceTimer = new QTimer(this);
m_scrollDebounceTimer->setSingleShot(true);
m_scrollDebounceTimer->setInterval(200);
m_scrollDebounceTimer->setInterval(s_debounceInterval);
connect(m_scrollDebounceTimer,
&QTimer::timeout,
this,
@@ -81,9 +78,6 @@ ImagesCarousel::ImagesCarousel(const double itemAspectRatio,
ImagesCarousel::~ImagesCarousel() {
delete ui;
for (auto item : std::as_const(m_imageQueue)) {
delete item;
}
// memory of items in m_loadedImages managed by Qt parent-child system
// ...
if (m_scrollAnimation) {
@@ -111,20 +105,14 @@ ImageLoader::ImageLoader(const QString& path, ImagesCarousel* carousel)
setAutoDelete(true);
}
void ImagesCarousel::_addImageToQueue(const ImageData* data) {
QMutexLocker locker(&m_queueMutex);
auto imageItem = new ImageItem(
void ImagesCarousel::_insertImage(const ImageData* data) {
auto item = new ImageItem(
data,
m_itemWidth,
m_itemHeight,
m_itemFocusWidth,
m_itemFocusHeight,
this);
m_imageQueue.enqueue(imageItem);
}
void ImagesCarousel::_updateImages() {
QMutexLocker locker(&m_queueMutex);
static const QVector<std::function<bool(const ImageItem*, const ImageItem*)>> cmpFuncs = {
[](auto, auto) {
@@ -141,10 +129,6 @@ void ImagesCarousel::_updateImages() {
},
};
int processCount = 0;
while (!m_imageQueue.isEmpty() && processCount < 5) {
ImageItem* item = m_imageQueue.dequeue();
// insert into correct position based on sort type and direction
// currently O(n^2), but better as O(n * (n + log(n))) with vector and binary search
qint64 inserPos = m_loadedImages.size();
@@ -155,16 +139,12 @@ void ImagesCarousel::_updateImages() {
(*it)->m_index++, ++it, --inserPos);
}
item->m_index = inserPos;
connect(item, &ImageItem::clicked, this, [this](int index) {
// if (m_suppressAutoFocus) return;
_unfocusCurrImage();
m_currentIndex = index;
_focusCurrImage();
});
connect(item,
&ImageItem::clicked,
this,
&ImagesCarousel::_onItemClicked);
m_loadedImages.insert(inserPos, item);
m_imagesLayout->insertWidget(inserPos, item);
processCount++;
}
{
QMutexLocker countLocker(&m_imageCountMutex);
@@ -177,23 +157,23 @@ void ImagesCarousel::_updateImages() {
void ImageLoader::run() {
auto data = new ImageData(m_path, m_initWidth, m_initHeight);
QMetaObject::invokeMethod(m_carousel,
"_addImageToQueue",
"_insertImage",
Qt::QueuedConnection,
Q_ARG(const ImageData*, data));
}
ImageData::ImageData(const QString& p, const int initWidth, const int initHeight) : file(p) {
if (!pixmap.load(p)) {
if (!image.load(p)) {
warn(QString("Failed to load image from path: %1").arg(p));
}
// resize in "cover" mode
const QSize targetSize(initWidth, initHeight);
pixmap = pixmap.scaled(targetSize, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
image = image.scaled(targetSize, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
// Crop to center
int x = (pixmap.width() - targetSize.width()) / 2;
int y = (pixmap.height() - targetSize.height()) / 2;
pixmap = pixmap.copy(x, y, targetSize.width(), targetSize.height());
int x = (image.width() - targetSize.width()) / 2;
int y = (image.height() - targetSize.height()) / 2;
image = image.copy(x, y, targetSize.width(), targetSize.height());
}
void ImagesCarousel::focusNextImage() {
@@ -242,7 +222,7 @@ void ImagesCarousel::_focusCurrImage() {
}
m_scrollAnimation = new QPropertyAnimation(hScrollBar, "value");
m_scrollAnimation->setDuration(300);
m_scrollAnimation->setDuration(s_animationDuration);
m_scrollAnimation->setStartValue(hScrollBar->value());
m_scrollAnimation->setEndValue(leftOffset);
m_scrollAnimation->setEasingCurve(QEasingCurve::OutCubic);
@@ -282,6 +262,13 @@ void ImagesCarousel::_onScrollBarValueChanged(int value) {
_focusCurrImage();
}
void ImagesCarousel::_onItemClicked(int index) {
// if (m_suppressAutoFocus) return;
_unfocusCurrImage();
m_currentIndex = index;
_focusCurrImage();
}
ImageItem::ImageItem(const ImageData* data,
const int itemWidth,
const int itemHeight,
@@ -293,7 +280,7 @@ ImageItem::ImageItem(const ImageData* data,
m_itemSize(itemWidth, itemHeight),
m_itemFocusSize(itemFocusWidth, itemFocusHeight) {
setScaledContents(true);
setPixmap(data->pixmap);
setPixmap(QPixmap::fromImage(data->image));
setFixedSize(itemWidth, itemHeight);
}
src/images_carousel.h
+8 -8
View File
@@ -1,12 +1,14 @@
/*
* @Author: Uyanide pywang0608@foxmail.com
* @Date: 2025-08-05 01:22:53
* @LastEditTime: 2025-08-06 22:40:18
* @LastEditTime: 2025-08-07 00:27:03
* @Description: Animated carousel widget for displaying and selecting images.
*/
#ifndef IMAGES_CAROUSEL_H
#define IMAGES_CAROUSEL_H
#include <qtmetamacros.h>
#include <QFileInfo>
#include <QHBoxLayout>
#include <QKeyEvent>
@@ -36,7 +38,7 @@ class ImagesCarouselScrollArea;
*/
struct ImageData {
QFileInfo file;
QPixmap pixmap;
QImage image;
explicit ImageData(const QString& p, const int initWidth, const int initHeight);
};
@@ -63,7 +65,7 @@ class ImageItem : public QLabel {
[[nodiscard]] QDateTime getFileDate() const { return m_data->file.lastModified(); }
[[nodiscard]] const QPixmap& getPixmap() const { return m_data->pixmap; }
[[nodiscard]] const QImage& getThumbnail() const { return m_data->image; }
[[nodiscard]] qint64 getFileSize() const { return m_data->file.size(); }
@@ -117,6 +119,7 @@ class ImagesCarousel : public QWidget {
QWidget* parent = nullptr);
~ImagesCarousel();
static constexpr int s_debounceInterval = 200;
static constexpr int s_animationDuration = 300;
[[nodiscard]] QString getCurrentImagePath() const {
@@ -140,22 +143,19 @@ class ImagesCarousel : public QWidget {
private slots:
void _unfocusCurrImage();
void _onScrollBarValueChanged(int value);
void _onItemClicked(int index);
public:
void
appendImages(const QStringList& paths);
private:
Q_INVOKABLE void _addImageToQueue(const ImageData* data);
void _focusCurrImage();
void _updateImages();
Q_INVOKABLE void _insertImage(const ImageData* item);
private:
Ui::ImagesCarousel* ui;
QMutex m_queueMutex;
QQueue<ImageItem*> m_imageQueue;
QList<ImageItem*> m_loadedImages;
QTimer* m_updateTimer;
int m_currentIndex = 0;
QPropertyAnimation* m_scrollAnimation = nullptr;
QHBoxLayout* m_imagesLayout = nullptr;