mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-21 10:19:03 +03:00
99 lines
3.3 KiB
C++
99 lines
3.3 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "MultiScaleBitmaps.h"
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#include "Screen.h"
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namespace WindowServer {
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const Gfx::Bitmap& MultiScaleBitmaps::bitmap(int scale_factor) const
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{
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auto it = m_bitmaps.find(scale_factor);
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if (it == m_bitmaps.end()) {
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it = m_bitmaps.find(1);
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if (it == m_bitmaps.end())
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it = m_bitmaps.begin();
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}
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// We better found *something*
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if (it == m_bitmaps.end()) {
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dbgln("Could not find any bitmap in this MultiScaleBitmaps");
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VERIFY_NOT_REACHED();
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}
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return it->value;
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}
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Gfx::Bitmap const* MultiScaleBitmaps::find_bitmap(int scale_factor) const
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{
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auto it = m_bitmaps.find(scale_factor);
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return it != m_bitmaps.end() ? it->value.ptr() : nullptr;
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}
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RefPtr<MultiScaleBitmaps> MultiScaleBitmaps::create_empty()
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{
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return adopt_ref(*new MultiScaleBitmaps());
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}
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RefPtr<MultiScaleBitmaps> MultiScaleBitmaps::create(StringView filename, StringView default_filename)
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{
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auto per_scale_bitmap = adopt_ref(*new MultiScaleBitmaps());
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if (per_scale_bitmap->load(filename, default_filename))
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return per_scale_bitmap;
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return {};
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}
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bool MultiScaleBitmaps::load(StringView filename, StringView default_filename)
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{
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Optional<Gfx::BitmapFormat> bitmap_format;
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bool did_load_any = false;
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m_bitmaps.clear(); // If we're reloading the bitmaps get rid of the old ones
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auto add_bitmap = [&](StringView path, int scale_factor) {
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auto bitmap_or_error = Gfx::Bitmap::try_load_from_file(path, scale_factor);
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if (bitmap_or_error.is_error())
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return;
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auto bitmap = bitmap_or_error.release_value_but_fixme_should_propagate_errors();
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auto bitmap_format = bitmap->format();
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if (m_format == Gfx::BitmapFormat::Invalid || m_format == bitmap_format) {
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if (m_format == Gfx::BitmapFormat::Invalid)
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m_format = bitmap_format;
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did_load_any = true;
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m_bitmaps.set(scale_factor, move(bitmap));
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} else {
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// Gracefully ignore, we have at least one bitmap already
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dbgln("Bitmap {} (scale {}) has format inconsistent with the other per-scale bitmaps", path, bitmap->scale());
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}
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};
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Screen::for_each_scale_factor_in_use([&](int scale_factor) {
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add_bitmap(filename, scale_factor);
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return IterationDecision::Continue;
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});
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if (!did_load_any && !default_filename.is_null() && !default_filename.is_empty()) {
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Screen::for_each_scale_factor_in_use([&](int scale_factor) {
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add_bitmap(default_filename, scale_factor);
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return IterationDecision::Continue;
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});
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}
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return did_load_any;
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}
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void MultiScaleBitmaps::add_bitmap(int scale_factor, NonnullRefPtr<Gfx::Bitmap>&& bitmap)
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{
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auto bitmap_format = bitmap->format();
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if (m_format == Gfx::BitmapFormat::Invalid || m_format == bitmap_format) {
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if (m_format == Gfx::BitmapFormat::Invalid)
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m_format = bitmap_format;
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m_bitmaps.set(scale_factor, move(bitmap));
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} else {
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dbgln("MultiScaleBitmaps::add_bitmap (scale {}) has format inconsistent with the other per-scale bitmaps", bitmap->scale());
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VERIFY_NOT_REACHED(); // The caller of this function should have made sure it is consistent!
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}
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}
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}
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