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https://github.com/RGBCube/serenity
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be604652ae
This is a convenience helper to instantiate a GIcon like so:
auto icon = GIcon::default_icon("filetype-image");
This will give you the "filetype-image" icon in both 16x16 and 32x32 sizes.
70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
#include <LibGUI/GIcon.h>
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GIcon::GIcon()
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: m_impl(GIconImpl::create())
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{
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}
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GIcon::GIcon(const GIconImpl& impl)
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: m_impl(const_cast<GIconImpl&>(impl))
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{
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}
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GIcon::GIcon(const GIcon& other)
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: m_impl(other.m_impl.copy_ref())
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{
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}
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GIcon::GIcon(RetainPtr<GraphicsBitmap>&& bitmap)
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: GIcon()
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{
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if (bitmap) {
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ASSERT(bitmap->width() == bitmap->height());
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int size = bitmap->width();
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set_bitmap_for_size(size, move(bitmap));
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}
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}
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GIcon::GIcon(RetainPtr<GraphicsBitmap>&& bitmap1, RetainPtr<GraphicsBitmap>&& bitmap2)
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: GIcon(move(bitmap1))
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{
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if (bitmap2) {
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ASSERT(bitmap2->width() == bitmap2->height());
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int size = bitmap2->width();
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set_bitmap_for_size(size, move(bitmap2));
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}
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}
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const GraphicsBitmap* GIconImpl::bitmap_for_size(int size) const
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{
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auto it = m_bitmaps.find(size);
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if (it != m_bitmaps.end())
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return it->value.ptr();
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int best_diff_so_far = INT32_MAX;
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const GraphicsBitmap* best_fit = nullptr;
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for (auto& it : m_bitmaps) {
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int abs_diff = abs(it.key - size);
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if (abs_diff < best_diff_so_far) {
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best_diff_so_far = abs_diff;
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best_fit = it.value.ptr();
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}
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}
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return best_fit;
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}
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void GIconImpl::set_bitmap_for_size(int size, RetainPtr<GraphicsBitmap>&& bitmap)
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{
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if (!bitmap) {
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m_bitmaps.remove(size);
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return;
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}
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m_bitmaps.set(size, move(bitmap));
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}
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GIcon GIcon::default_icon(const String& name)
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{
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auto bitmap16 = GraphicsBitmap::load_from_file(String::format("/res/icons/16x16/%s.png", name.characters()));
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auto bitmap32 = GraphicsBitmap::load_from_file(String::format("/res/icons/32x32/%s.png", name.characters()));
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return GIcon(move(bitmap16), move(bitmap32));
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}
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