From 3f6024ddf213b83cf0c815b68f8ad8de3f3afa44 Mon Sep 17 00:00:00 2001 From: ouwou <26526779+ouwou@users.noreply.github.com> Date: Sat, 16 Jan 2021 23:49:27 -0500 Subject: improve image loading a bit (close #6) --- components/lazyimage.cpp | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 components/lazyimage.cpp (limited to 'components/lazyimage.cpp') diff --git a/components/lazyimage.cpp b/components/lazyimage.cpp new file mode 100644 index 0000000..08b9f10 --- /dev/null +++ b/components/lazyimage.cpp @@ -0,0 +1,41 @@ +#include "lazyimage.hpp" +#include "../abaddon.hpp" + +LazyImage::LazyImage(int w, int h, bool use_placeholder) + : m_width(w) + , m_height(h) { + static int sidx = 0; + sidx++; + m_idx = sidx; + if (use_placeholder) + property_pixbuf() = Abaddon::Get().GetImageManager().GetPlaceholder(w)->scale_simple(w, h, Gdk::INTERP_BILINEAR); + signal_draw().connect(sigc::mem_fun(*this, &LazyImage::OnDraw)); +} + +LazyImage::LazyImage(const std::string &url, int w, int h, bool use_placeholder) + : m_url(url) + , m_width(w) + , m_height(h) { + static int sidx = 0; + sidx++; + m_idx = sidx; + if (use_placeholder) + property_pixbuf() = Abaddon::Get().GetImageManager().GetPlaceholder(w)->scale_simple(w, h, Gdk::INTERP_BILINEAR); + signal_draw().connect(sigc::mem_fun(*this, &LazyImage::OnDraw)); +} + +void LazyImage::SetURL(const std::string &url) { + m_url = url; +} + +bool LazyImage::OnDraw(const Cairo::RefPtr &context) { + if (!m_needs_request || m_url == "") return false; + m_needs_request = false; + + auto cb = [this](const Glib::RefPtr &pb) { + property_pixbuf() = pb->scale_simple(m_width, m_height, Gdk::INTERP_BILINEAR); + }; + Abaddon::Get().GetImageManager().LoadFromURL(m_url, sigc::track_obj(cb, *this)); + + return false; +} -- cgit v1.2.3