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wip: working carousel :D

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Uyanide
2025-08-05 16:53:06 +02:00
parent c35c0a724e
commit 8fab9b3ff4
6 changed files with 368 additions and 11 deletions
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config.example.json
+17
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@@ -0,0 +1,17 @@
{
"wallpaper": {
"paths": [
"~/Pictures/116327446_p0.jpg"
],
"dirs": [
"~/.config/backgrounds"
],
"excludes": [
"~/.config/backgrounds/nao-start-crop-adjusted.jpg",
"~/.config/backgrounds/README.md"
]
},
"actions": {
"confirm": "~/.scripts/change_wallpaper.sh <path> <color>"
}
}
images_carousel.cpp
+198 -2
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@@ -1,12 +1,208 @@
/*
* @Author: Uyanide pywang0608@foxmail.com
* @Date: 2025-08-05 01:22:53
* @LastEditTime: 2025-08-05 16:51:12
* @Description:
*/
#include "images_carousel.h"
#include <pthread.h>
#include <qevent.h>
#include <qpropertyanimation.h>
#include <qvariantanimation.h>
#include <QLabel>
#include <QMetaObject>
#include <QScrollArea>
#include <QScrollBar>
#include "logger.h"
#include "ui_images_carousel.h"
ImagesCarousel::ImagesCarousel(QWidget *parent) : QWidget(parent),
ui(new Ui::ImagesCarousel) {
using namespace GeneralLogger;
ImagesCarousel::ImagesCarousel(QWidget* parent)
: QWidget(parent),
ui(new Ui::ImagesCarousel),
m_updateTimer(new QTimer(this)),
m_scrollAnimation(nullptr) {
ui->setupUi(this);
connect(m_updateTimer, &QTimer::timeout, this, &ImagesCarousel::updateImages);
m_updateTimer->start(100);
}
ImagesCarousel::~ImagesCarousel() {
delete ui;
for (auto item : m_imageQueue) {
delete item;
}
if (m_scrollAnimation) {
m_scrollAnimation->stop();
delete m_scrollAnimation;
}
}
void ImagesCarousel::appendImage(const QString& path) {
ImageLoader* loader = new ImageLoader(path, this);
QThreadPool::globalInstance()->start(loader);
}
ImageLoader::ImageLoader(const QString& path, ImagesCarousel* carousel)
: m_path(path), m_carousel(carousel) {
setAutoDelete(true);
}
void ImagesCarousel::addImageToQueue(const ImageData* data) {
QMutexLocker locker(&m_queueMutex);
auto imageItem = new ImageItem(data,
s_itemWidth,
s_itemHeight,
s_itemFocusWidth,
s_itemFocusHeight,
this);
m_imageQueue.enqueue(imageItem);
}
void ImagesCarousel::updateImages() {
QMutexLocker locker(&m_queueMutex);
int processCount = 0;
while (!m_imageQueue.isEmpty() && processCount < 5) {
ImageItem* item = m_imageQueue.dequeue();
ui->scrollAreaWidgetContents->layout()->addWidget(item);
m_loadedImages.append(item);
if (m_loadedImages.size() == 1) {
item->focusImage();
} else {
item->unfocusImage();
}
processCount++;
}
}
void ImageLoader::run() {
auto data = new ImageData(m_path);
QMetaObject::invokeMethod(m_carousel,
"addImageToQueue",
Qt::QueuedConnection,
Q_ARG(const ImageData*, data));
}
ImageData::ImageData(const QString& p) : path(p) {
path = p;
if (!pixmap.load(p)) {
warn(QString("Failed to load image from path: %1").arg(p));
}
// resize in "cover" mode
const QSize targetSize(ImagesCarousel::s_itemWidth, ImagesCarousel::s_itemHeight);
pixmap = pixmap.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());
}
void ImagesCarousel::focusNextImage() {
unfocusCurrImage();
if (m_loadedImages.size() <= 1) return;
m_currentIndex++;
if (m_currentIndex >= m_loadedImages.size()) {
m_currentIndex = 0;
}
focusCurrImage();
}
void ImagesCarousel::focusPrevImage() {
if (m_loadedImages.size() <= 1) return;
unfocusCurrImage();
m_currentIndex--;
if (m_currentIndex < 0) {
m_currentIndex = m_loadedImages.size() - 1;
}
focusCurrImage();
}
void ImagesCarousel::unfocusCurrImage() {
m_loadedImages[m_currentIndex]->unfocusImage();
}
void ImagesCarousel::focusCurrImage() {
m_loadedImages[m_currentIndex]->focusImage();
auto hScrollBar = ui->scrollArea->horizontalScrollBar();
int spacing = ui->scrollAreaWidgetContents->layout()->spacing();
int centerOffset = (s_itemWidth + spacing) * m_currentIndex + s_itemFocusWidth / 2 - spacing;
int leftOffset = centerOffset - ui->scrollArea->width() / 2;
if (leftOffset < 0) {
leftOffset = 0;
}
if (m_scrollAnimation) {
m_scrollAnimation->stop();
delete m_scrollAnimation;
m_scrollAnimation = nullptr;
}
m_scrollAnimation = new QPropertyAnimation(hScrollBar, "value");
m_scrollAnimation->setDuration(300);
m_scrollAnimation->setStartValue(hScrollBar->value());
m_scrollAnimation->setEndValue(leftOffset);
m_scrollAnimation->setEasingCurve(QEasingCurve::OutCubic);
m_scrollAnimation->start();
}
ImageItem::ImageItem(const ImageData* data,
const int itemWidth,
const int itemHeight,
const int itemFocusWidth,
const int itemFocusHeight,
QWidget* parent)
: QLabel(parent),
m_data(data),
m_itemSize(itemWidth, itemHeight),
m_itemFocusSize(itemFocusWidth, itemFocusHeight) {
setPixmap(data->pixmap);
setFixedSize(ImagesCarousel::s_itemWidth, ImagesCarousel::s_itemHeight);
setScaledContents(true);
}
void ImageItem::focusImage() {
if (m_scaleAnimation) {
m_scaleAnimation->stop();
delete m_scaleAnimation;
m_scaleAnimation = nullptr;
}
m_scaleAnimation = new QPropertyAnimation(this, "size");
m_scaleAnimation->setDuration(ImagesCarousel::s_animationDuration);
m_scaleAnimation->setStartValue(size());
m_scaleAnimation->setEndValue(m_itemFocusSize);
m_scaleAnimation->setEasingCurve(QEasingCurve::OutCubic);
connect(m_scaleAnimation,
&QPropertyAnimation::valueChanged,
this,
[this](const QVariant& value) {
setFixedSize(value.toSize());
});
m_scaleAnimation->start();
}
void ImageItem::unfocusImage() {
if (m_scaleAnimation) {
m_scaleAnimation->stop();
delete m_scaleAnimation;
m_scaleAnimation = nullptr;
}
m_scaleAnimation = new QPropertyAnimation(this, "size");
m_scaleAnimation->setDuration(ImagesCarousel::s_animationDuration);
m_scaleAnimation->setStartValue(size());
m_scaleAnimation->setEndValue(m_itemSize);
m_scaleAnimation->setEasingCurve(QEasingCurve::OutCubic);
connect(m_scaleAnimation,
&QPropertyAnimation::valueChanged,
this,
[this](const QVariant& value) {
setFixedSize(value.toSize());
});
m_scaleAnimation->start();
}
images_carousel.h
+102
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@@ -1,8 +1,68 @@
/*
* @Author: Uyanide pywang0608@foxmail.com
* @Date: 2025-08-05 01:22:53
* @LastEditTime: 2025-08-05 16:49:22
* @Description:
*/
#ifndef IMAGES_CAROUSEL_H
#define IMAGES_CAROUSEL_H
#include <QKeyEvent>
#include <QLabel>
#include <QMutex>
#include <QObject>
#include <QPixmap>
#include <QPropertyAnimation>
#include <QQueue>
#include <QRunnable>
#include <QScrollArea>
#include <QThreadPool>
#include <QTimer>
#include <QWidget>
class ImagesCarousel;
struct ImageData {
QString path;
QPixmap pixmap;
ImageData() = default;
explicit ImageData(const QString& p);
};
class ImageItem : public QLabel {
Q_OBJECT
public:
explicit ImageItem(const ImageData* data,
const int itemWidth,
const int itemHeight,
const int itemFocusWidth,
const int itemFocusHeight,
QWidget* parent = nullptr);
public slots:
void focusImage();
void unfocusImage();
private:
const ImageData* m_data;
QSize m_itemSize;
QSize m_itemFocusSize;
QPropertyAnimation* m_scaleAnimation = nullptr;
};
class ImageLoader : public QRunnable {
public:
ImageLoader(const QString& path, ImagesCarousel* carousel);
void run() override;
private:
QString m_path;
ImagesCarousel* m_carousel;
};
namespace Ui {
class ImagesCarousel;
}
@@ -14,8 +74,50 @@ class ImagesCarousel : public QWidget {
explicit ImagesCarousel(QWidget* parent = nullptr);
~ImagesCarousel();
static constexpr int s_itemWidth = 320;
static constexpr int s_itemHeight = 200;
static constexpr int s_itemFocusWidth = 480;
static constexpr int s_itemFocusHeight = 300;
static constexpr int s_animationDuration = 300;
public slots:
void addImageToQueue(const ImageData* data);
void appendImage(const QString& path);
void focusNextImage();
void focusPrevImage();
void unfocusCurrImage();
void focusCurrImage();
private slots:
void updateImages();
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;
signals:
void imageLoaded(ImageData* imageData);
};
class ImagesCarouselScrollArea : public QScrollArea {
Q_OBJECT
public:
explicit ImagesCarouselScrollArea(QWidget* parent = nullptr)
: QScrollArea(parent) {
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setWidgetResizable(true);
}
protected:
void keyPressEvent(QKeyEvent* event) override {
event->ignore();
}
};
#endif // IMAGES_CAROUSEL_H
images_carousel.ui
+34
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@@ -13,7 +13,41 @@
<property name="windowTitle">
<string>Form</string>
</property>
<layout class="QHBoxLayout" name="horizontalLayout">
<item>
<widget class="ImagesCarouselScrollArea" name="scrollArea">
<property name="styleSheet">
<string notr="true">border: none</string>
</property>
<property name="verticalScrollBarPolicy">
<enum>Qt::ScrollBarPolicy::ScrollBarAlwaysOff</enum>
</property>
<property name="widgetResizable">
<bool>true</bool>
</property>
<widget class="QWidget" name="scrollAreaWidgetContents">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>382</width>
<height>282</height>
</rect>
</property>
<layout class="QHBoxLayout" name="horizontalLayout_2"/>
</widget>
</widget>
</item>
</layout>
</widget>
<customwidgets>
<customwidget>
<class>ImagesCarouselScrollArea</class>
<extends>QScrollArea</extends>
<header>images_carousel.h</header>
<container>1</container>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>
mainwindow.cpp
+9 -1
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@@ -1,7 +1,7 @@
/*
* @Author: Uyanide pywang0608@foxmail.com
* @Date: 2025-08-05 00:37:58
* @LastEditTime: 2025-08-05 12:18:00
* @LastEditTime: 2025-08-05 16:51:52
* @Description:
*/
#include "mainwindow.h"
@@ -30,6 +30,10 @@ void MainWindow::_setupUI() {
connect(ui->cancelButton, &QPushButton::clicked, this, &MainWindow::onCancel);
ui->confirmButton->setFocusPolicy(Qt::NoFocus);
ui->cancelButton->setFocusPolicy(Qt::NoFocus);
for (const auto &image : m_config->getWallpapers()) {
ui->carousel->appendImage(image);
}
}
void MainWindow::keyPressEvent(QKeyEvent *event) {
@@ -37,6 +41,10 @@ void MainWindow::keyPressEvent(QKeyEvent *event) {
onCancel();
} else if (event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) {
onConfirm();
} else if (event->key() == Qt::Key_Space || event->key() == Qt::Key_Tab || event->key() == Qt::Key_Right) {
ui->carousel->focusNextImage();
} else if (event->key() == Qt::Key_Left) {
ui->carousel->focusPrevImage();
} else {
QMainWindow::keyPressEvent(event);
}
mainwindow.ui
+6 -6
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@@ -69,12 +69,12 @@
</spacer>
</item>
<item>
<widget class="QPushButton" name="cancelButton">
<widget class="QPushButton" name="confirmButton">
<property name="styleSheet">
<string notr="true">color: #f38ba8</string>
<string notr="true">color: #a6e3a1</string>
</property>
<property name="text">
<string>Cancel</string>
<string>Confirm</string>
</property>
<property name="flat">
<bool>true</bool>
@@ -82,12 +82,12 @@
</widget>
</item>
<item>
<widget class="QPushButton" name="confirmButton">
<widget class="QPushButton" name="cancelButton">
<property name="styleSheet">
<string notr="true">color: #a6e3a1</string>
<string notr="true">color: #f38ba8</string>
</property>
<property name="text">
<string>Confirm</string>
<string>Cancel</string>
</property>
<property name="flat">
<bool>true</bool>