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[win] Fill the whole available space for the File Explorer thumbnail

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This commit is contained in:
David Capello 2021-06-08 16:44:58 -03:00
parent 7d809bd537
commit 55db5ac6f2
1 changed files with 19 additions and 3 deletions
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22
src/desktop/win/thumbnail_handler.cpp
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@ -1,4 +1,5 @@
// Desktop Integration
// Copyright (C) 2021 Igara Studio S.A.
// Copyright (C) 2017-2018 David Capello
//
// This file is released under the terms of the MIT license.
@ -18,6 +19,7 @@
#include "desktop/win/thumbnail_handler.h"
#include <algorithm>
#include <cassert>
#include <new>
@ -174,6 +176,9 @@ HRESULT ThumbnailHandler::Initialize(IStream* pStream, DWORD grfMode)
// IThumbnailProvider
HRESULT ThumbnailHandler::GetThumbnail(UINT cx, HBITMAP* phbmp, WTS_ALPHATYPE* pdwAlpha)
{
if (cx < 1 || !phbmp || !pdwAlpha)
return E_INVALIDARG;
if (!m_stream.get())
return E_FAIL;
@ -186,16 +191,27 @@ HRESULT ThumbnailHandler::GetThumbnail(UINT cx, HBITMAP* phbmp, WTS_ALPHATYPE* p
if (!dio::decode_file(&delegate, &adaptor))
return E_FAIL;
doc::Sprite* spr = delegate.sprite();
const doc::Sprite* spr = delegate.sprite();
w = spr->width();
h = spr->height();
int wh = std::max<int>(w, h);
image.reset(doc::Image::create(doc::IMAGE_RGB, w, h));
image.reset(doc::Image::create(doc::IMAGE_RGB,
cx * w / wh,
cx * h / wh));
image->clear(0);
#undef TRANSPARENT // Windows defines TRANSPARENT macro
render::Render render;
render.setBgType(render::BgType::TRANSPARENT);
render.renderSprite(image.get(), spr, 0);
render.setProjection(render::Projection(doc::PixelRatio(1, 1),
render::Zoom(cx, wh)));
render.renderSprite(image.get(), spr, 0,
gfx::ClipF(0, 0, 0, 0,
image->width(), image->height()));
w = image->width();
h = image->height();
}
catch (const std::exception&) {
// TODO convert exception into a HRESULT