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const gdv_69f41eac9f1afcanvas = document.getElementById("gdv_69f41eac9f1afimageCanvas"); const gdv_69f41eac9f1afctx = gdv_69f41eac9f1afcanvas.getContext("2d");
const gdv_69f41eac9f1afthumbnailContainer = document.getElementById("gdv_69f41eac9f1afthumbnailContainer"); const gdv_69f41eac9f1afthumbnailContainerWrapper = document.getElementById("gdv_69f41eac9f1afthumbnailContainerWrapper"); const gdv_69f41eac9f1afzoomInButton = document.getElementById("gdv_69f41eac9f1afzoomIn"); const gdv_69f41eac9f1afzoomOutButton = document.getElementById("gdv_69f41eac9f1afzoomOut"); const gdv_69f41eac9f1afresetZoomButton = document.getElementById("gdv_69f41eac9f1afresetZoom");
const gdv_69f41eac9f1afbrightnessInput = document.getElementById("gdv_69f41eac9f1afbrightness"); const gdv_69f41eac9f1afcontrastInput = document.getElementById("gdv_69f41eac9f1afcontrast"); const gdv_69f41eac9f1affullscreenButton = document.getElementById("gdv_69f41eac9f1affullscreen");
const gdv_69f41eac9f1afrotateRightButton = document.getElementById("gdv_69f41eac9f1afrotateRight"); const gdv_69f41eac9f1afrotateLeftButton = document.getElementById("gdv_69f41eac9f1afrotateLeft");
const gdv_69f41eac9f1afprevSlideButton = document.getElementById("gdv_69f41eac9f1afprevSlide"); const gdv_69f41eac9f1afnextSlideButton = document.getElementById("gdv_69f41eac9f1afnextSlide"); const gdv_69f41eac9f1afslideNumberDisplay = document.getElementById("gdv_69f41eac9f1afslideNumber"); const gdv_69f41eac9f1afimageName = document.getElementById("gdv_69f41eac9f1afimageName");
let gdv_69f41eac9f1afcurrentSlideIndex = 0;
gdv_69f41eac9f1afbrightnessInput.addEventListener("input", gdv_69f41eac9f1afdrawImage); gdv_69f41eac9f1afcontrastInput.addEventListener("input", gdv_69f41eac9f1afdrawImage);
const gdv_69f41eac9f1afimageUrls = [{"url":"https:\/\/drive.google.com\/thumbnail?id=1wG1E5B3NpG9WiCsga52lUrOI6V_jQL1x&sz=w3000","name":"EPOL_LFS_ affranchissement des esclaves guerriers dans le Sud.jpg"}];
let gdv_69f41eac9f1afscale = 1; let gdv_69f41eac9f1aforiginX = 0; let gdv_69f41eac9f1aforiginY = 0; const gdv_69f41eac9f1afminScale = 0.1; const gdv_69f41eac9f1afmaxScale = 5; let gdv_69f41eac9f1afcurrentImage = new Image();
let gdv_69f41eac9f1afrotationAngle = 0;
gdv_69f41eac9f1afrotateRightButton.addEventListener("click", function() { gdv_69f41eac9f1afrotationAngle = (gdv_69f41eac9f1afrotationAngle + 90) % 360; gdv_69f41eac9f1afdrawImage(); });
gdv_69f41eac9f1afrotateLeftButton.addEventListener("click", function() { gdv_69f41eac9f1afrotationAngle = (gdv_69f41eac9f1afrotationAngle - 90 + 360) % 360; gdv_69f41eac9f1afdrawImage(); });
function filtrerChaine(texte, cacher) { if (!texte) return "";
switch (cacher) { case "chiffre": return texte.replace(/\d/g, "");
case "tout": return "";
case "vide": default: return texte; } }
// Charger la première image par défaut gdv_69f41eac9f1afcurrentImage.src = gdv_69f41eac9f1afimageUrls[0]["url"]; gdv_69f41eac9f1afimageName.innerHTML = filtrerChaine(gdv_69f41eac9f1afimageUrls[0]["name"], "rien"); gdv_69f41eac9f1afcurrentImage.onload = function() {
gdv_69f41eac9f1afupdateSlideNumber(); gdv_69f41eac9f1afresizeCanvas(); gdv_69f41eac9f1afdrawImage(); document.getElementById("gdv_69f41eac9f1afcontrols").style.display = "block"; };
function gdv_69f41eac9f1afupdateSlideNumber() { gdv_69f41eac9f1afslideNumberDisplay.textContent = `${gdv_69f41eac9f1afcurrentSlideIndex + 1} / ${gdv_69f41eac9f1afimageUrls.length}`; }
gdv_69f41eac9f1afprevSlideButton.addEventListener("click", function() { if (gdv_69f41eac9f1afcurrentSlideIndex > 0) { gdv_69f41eac9f1afcurrentSlideIndex--; gdv_69f41eac9f1afloadImage(gdv_69f41eac9f1afcurrentSlideIndex); gdv_69f41eac9f1afupdateSlideNumber(); } });
gdv_69f41eac9f1afnextSlideButton.addEventListener("click", function() { if (gdv_69f41eac9f1afcurrentSlideIndex < gdv_69f41eac9f1afimageUrls.length - 1) { gdv_69f41eac9f1afcurrentSlideIndex++; gdv_69f41eac9f1afloadImage(gdv_69f41eac9f1afcurrentSlideIndex); gdv_69f41eac9f1afupdateSlideNumber(); } }); function gdv_69f41eac9f1afresizeCanvas() { // Ajuster la taille du canvas pour correspondre à celle du conteneur const container = document.getElementById("gdv_69f41eac9f1afcanvasContainer"); gdv_69f41eac9f1afcanvas.width = container.clientWidth; gdv_69f41eac9f1afcanvas.height = container.clientHeight - 30; gdv_69f41eac9f1affitImageToCanvas(); // Redessiner le contenu du canvas ici gdv_69f41eac9f1afdrawImage(); } window.addEventListener("load", gdv_69f41eac9f1afresizeCanvas); window.addEventListener("resize", gdv_69f41eac9f1afresizeCanvas); function gdv_69f41eac9f1affitImageToCanvas() { const canvasAspect = gdv_69f41eac9f1afcanvas.width / gdv_69f41eac9f1afcanvas.height; const imageAspect = gdv_69f41eac9f1afcurrentImage.width / gdv_69f41eac9f1afcurrentImage.height; if (imageAspect > canvasAspect) { gdv_69f41eac9f1afscale = gdv_69f41eac9f1afcanvas.width / gdv_69f41eac9f1afcurrentImage.width; } else { gdv_69f41eac9f1afscale = gdv_69f41eac9f1afcanvas.height / gdv_69f41eac9f1afcurrentImage.height; } gdv_69f41eac9f1aforiginX = gdv_69f41eac9f1afcanvas.width / 2; gdv_69f41eac9f1aforiginY = gdv_69f41eac9f1afcanvas.height / 2; }
function gdv_69f41eac9f1afdrawImage() { gdv_69f41eac9f1afctx.clearRect(0, 0, gdv_69f41eac9f1afcanvas.width, gdv_69f41eac9f1afcanvas.height); gdv_69f41eac9f1afctx.save(); gdv_69f41eac9f1afctx.translate(gdv_69f41eac9f1aforiginX, gdv_69f41eac9f1aforiginY); gdv_69f41eac9f1afctx.rotate((Math.PI / 180) * gdv_69f41eac9f1afrotationAngle); gdv_69f41eac9f1afctx.scale(gdv_69f41eac9f1afscale, gdv_69f41eac9f1afscale);
// Appliquer la luminosité et le contraste gdv_69f41eac9f1afctx.filter = `brightness(${gdv_69f41eac9f1afbrightnessInput.value}) contrast(${gdv_69f41eac9f1afcontrastInput.value})`; gdv_69f41eac9f1afctx.drawImage(gdv_69f41eac9f1afcurrentImage, -gdv_69f41eac9f1afcurrentImage.width/2, -gdv_69f41eac9f1afcurrentImage.height/2); gdv_69f41eac9f1afctx.restore(); }
// Ajouter les miniatures des images gdv_69f41eac9f1afimageUrls.forEach((obj, index) => { const slide = document.createElement("div"); slide.classList.add("swiper-slide"); const img = new Image(); img.loading = "lazy"; img.src = obj["url"]; img.onclick = function() { gdv_69f41eac9f1afloadImage(index); gdv_69f41eac9f1afcurrentSlideIndex = index; gdv_69f41eac9f1afupdateSlideNumber(); }; slide.appendChild(img); gdv_69f41eac9f1afthumbnailContainerWrapper.appendChild(slide); });
// Charger une image dans le canvas function gdv_69f41eac9f1afloadImage(index) { gdv_69f41eac9f1afcurrentImage.src = gdv_69f41eac9f1afimageUrls[index]["url"]; gdv_69f41eac9f1afimageName.innerHTML = filtrerChaine(gdv_69f41eac9f1afimageUrls[index]["name"], "rien"); gdv_69f41eac9f1afcurrentImage.onload = function() { gdv_69f41eac9f1afscale = 1; gdv_69f41eac9f1aforiginX = 0; gdv_69f41eac9f1aforiginY = 0; gdv_69f41eac9f1affitImageToCanvas(); gdv_69f41eac9f1afdrawImage(); };
const thumbnails = document.querySelectorAll(".swiper-slide"); thumbnails.forEach((thumb, i) => { if (i === index) { thumb.classList.add("active-thumbnail"); } else { thumb.classList.remove("active-thumbnail"); } }); }
// Initialiser Swiper var gdv_69f41eac9f1afswiper = new Swiper(".gdv_69f41eac9f1afswiper-container", { direction: "horizontal", slidesPerView: 8, spaceBetween: 5, breakpoints: { 576: { slidesPerView: 8, spaceBetween: 5 }, 768: { slidesPerView: 9, spaceBetween: 5 }, 992: { slidesPerView: 11, spaceBetween: 5 }, 1200: { slidesPerView: 13, spaceBetween: 5 } }, mousewheel: true, });
document.querySelector(".swiper-slide").classList.add("active-thumbnail");
//gdv_69f41eac9f1afswiper.on("slideChange", function () { // gdv_69f41eac9f1afcurrentSlideIndex = gdv_69f41eac9f1afswiper.activeIndex; // gdv_69f41eac9f1afupdateSlideNumber(); //});
// Plein écran gdv_69f41eac9f1affullscreenButton.addEventListener("click", function() { if (!document.fullscreenElement) { document.getElementById("gdv_69f41eac9f1afgd-image-gallery").requestFullscreen().catch(err => { alert(`Erreur lors de la tentative de mise en plein écran: ${err.message}`); }); } else { document.exitFullscreen(); } });
// Impression du canvas
/*printButton.addEventListener("click", function() {
const dataUrl = canvas.toDataURL();
const windowContent = ``;
const printWindow = window.open("", "", "width=800,height=800");
printWindow.document.write(windowContent);
printWindow.document.close();
});
*/
// Gestion du zoom gdv_69f41eac9f1afcanvas.addEventListener("wheel", function(event) { event.preventDefault(); const zoomFactor = 0.025; const mouseX = event.offsetX; const mouseY = event.offsetY;
let newScale = gdv_69f41eac9f1afscale; if (event.deltaY < 0) { newScale *= 1 + zoomFactor; } else { newScale /= 1 + zoomFactor; } newScale = Math.max(gdv_69f41eac9f1afminScale, Math.min(gdv_69f41eac9f1afmaxScale, newScale)); const scaleRatio = newScale / gdv_69f41eac9f1afscale; gdv_69f41eac9f1aforiginX = mouseX - (mouseX - gdv_69f41eac9f1aforiginX) * scaleRatio; gdv_69f41eac9f1aforiginY = mouseY - (mouseY - gdv_69f41eac9f1aforiginY) * scaleRatio; gdv_69f41eac9f1afscale = newScale; gdv_69f41eac9f1afdrawImage(); }); // Gestion du déplacement (pan) let gdv_69f41eac9f1afisDragging = false; let gdv_69f41eac9f1afstartX, gdv_69f41eac9f1afstartY; gdv_69f41eac9f1afcanvas.addEventListener("mousedown", function(event) { gdv_69f41eac9f1afisDragging = true; gdv_69f41eac9f1afstartX = event.offsetX - gdv_69f41eac9f1aforiginX; gdv_69f41eac9f1afstartY = event.offsetY - gdv_69f41eac9f1aforiginY; gdv_69f41eac9f1afcanvas.style.cursor = "grabbing"; }); gdv_69f41eac9f1afcanvas.addEventListener("mousemove", function(event) { if (gdv_69f41eac9f1afisDragging) { gdv_69f41eac9f1aforiginX = event.offsetX - gdv_69f41eac9f1afstartX; gdv_69f41eac9f1aforiginY = event.offsetY - gdv_69f41eac9f1afstartY; gdv_69f41eac9f1afdrawImage(); } }); // Gestion des événements tactiles gdv_69f41eac9f1afcanvas.addEventListener("touchstart", function(event) { if (event.touches.length === 1) { gdv_69f41eac9f1afisDragging = true; const touch = event.touches[0]; gdv_69f41eac9f1afstartX = touch.pageX - gdv_69f41eac9f1aforiginX; gdv_69f41eac9f1afstartY = touch.pageY - gdv_69f41eac9f1aforiginY; } }); gdv_69f41eac9f1afcanvas.addEventListener("touchmove", function(event) { event.preventDefault(); // Empêche le comportement par défaut du navigateur const touch = event.touches[0]; gdv_69f41eac9f1aforiginX = touch.pageX - gdv_69f41eac9f1afstartX; gdv_69f41eac9f1aforiginY = touch.pageY - gdv_69f41eac9f1afstartY; gdv_69f41eac9f1afdrawImage(); }); gdv_69f41eac9f1afcanvas.addEventListener("touchend", function() { gdv_69f41eac9f1afisDragging = false; }); gdv_69f41eac9f1afcanvas.addEventListener("mouseup", function() { gdv_69f41eac9f1afisDragging = false; gdv_69f41eac9f1afcanvas.style.cursor = "grab"; }); gdv_69f41eac9f1afcanvas.addEventListener("mouseleave", function() { gdv_69f41eac9f1afisDragging = false; gdv_69f41eac9f1afcanvas.style.cursor = "grab"; }); gdv_69f41eac9f1afzoomInButton.addEventListener("click", function() { let newScale = gdv_69f41eac9f1afscale; const zoomFactor = 0.025; newScale *= 1 + zoomFactor; gdv_69f41eac9f1afscale = Math.max(gdv_69f41eac9f1afminScale, Math.min(gdv_69f41eac9f1afmaxScale, newScale)); gdv_69f41eac9f1afdrawImage(); }); gdv_69f41eac9f1afzoomOutButton.addEventListener("click", function() { let newScale = gdv_69f41eac9f1afscale; const zoomFactor = 0.025; newScale /= 1 + zoomFactor; gdv_69f41eac9f1afscale = Math.max(gdv_69f41eac9f1afminScale, Math.min(gdv_69f41eac9f1afmaxScale, newScale)); gdv_69f41eac9f1afdrawImage(); }); gdv_69f41eac9f1afresetZoomButton.addEventListener("click", function() { gdv_69f41eac9f1afrotationAngle = 0; gdv_69f41eac9f1affitImageToCanvas(); gdv_69f41eac9f1afdrawImage(); }); function gdv_69f41eac9f1afgetImageIdFromUrl(url) { const urlObj = new URL(url); return urlObj.searchParams.get("id"); } document.getElementById("gdv_69f41eac9f1afdownloadImage").addEventListener("click", function() { let url = gdv_69f41eac9f1afcurrentImage.src; const imageId = gdv_69f41eac9f1afgetImageIdFromUrl(url); const apiUrl = `${window.location.origin}/wp-json/gdv/v1/download-image?image_id=${imageId}`; fetch(apiUrl) .then(response => response.blob()) .then(blob => { const url = window.URL.createObjectURL(blob); const a = document.createElement("a"); a.style.display = "none"; a.href = url; a.download = `${imageId}.jpg`; document.body.appendChild(a); a.click(); window.URL.revokeObjectURL(url); }) .catch(error => console.error("Error downloading image:", error)); });
function gdv_69f41eac9f1afprintImageFromApi(imageId) { const apiUrl = `${window.location.origin}/wp-json/gdv/v1/download-image?image_id=${imageId}`;
fetch(apiUrl) .then(response => response.blob()) .then(blob => { const url = URL.createObjectURL(blob); const printWindow = window.open("", "_blank"); printWindow.document.write(`
const gdv_69f41eac9f1afprintButton = document.getElementById("gdv_69f41eac9f1afprintCanvas");
gdv_69f41eac9f1afprintButton.addEventListener("click", function() { let url = gdv_69f41eac9f1afcurrentImage.src; const imageId = gdv_69f41eac9f1afgetImageIdFromUrl(url); gdv_69f41eac9f1afprintImageFromApi(imageId); });
let gdv_69f41eac9f1afinitialDistance = 0; let gdv_69f41eac9f1afinitialScale = 1;
gdv_69f41eac9f1afcanvas.addEventListener("touchstart", function(event) { if (event.touches.length === 2) { event.preventDefault(); gdv_69f41eac9f1afinitialDistance = getDistance(event.touches[0], event.touches[1]); gdv_69f41eac9f1afinitialScale = gdv_69f41eac9f1afscale; } });
gdv_69f41eac9f1afcanvas.addEventListener("touchmove", function(event) { if (event.touches.length === 2) { event.preventDefault(); const currentDistance = getDistance(event.touches[0], event.touches[1]); const scaleChange = currentDistance / gdv_69f41eac9f1afinitialDistance; let newScale = gdv_69f41eac9f1afinitialScale * scaleChange;
newScale = Math.max(gdv_69f41eac9f1afminScale, Math.min(gdv_69f41eac9f1afmaxScale, newScale));
const centerX = (event.touches[0].pageX + event.touches[1].pageX) / 2; const centerY = (event.touches[0].pageY + event.touches[1].pageY) / 2;
const scaleRatio = newScale / gdv_69f41eac9f1afscale; gdv_69f41eac9f1aforiginX = centerX - (centerX - gdv_69f41eac9f1aforiginX) * scaleRatio; gdv_69f41eac9f1aforiginY = centerY - (centerY - gdv_69f41eac9f1aforiginY) * scaleRatio;
gdv_69f41eac9f1afscale = newScale; gdv_69f41eac9f1afdrawImage(); // Remplacez par votre fonction de dessin } });
function getDistance(touch1, touch2) { const dx = touch2.pageX - touch1.pageX; const dy = touch2.pageY - touch1.pageY; return Math.sqrt(dx * dx + dy * dy); }