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#include "pch.h"
#include "PrintPage.h"
using namespace Microsoft::WRL;
using namespace Windows::Graphics::Printing;
#pragma region IDocumentPageSource Methods
/* This is the interface to the print thread calls */
IFACEMETHODIMP
PrintPages::GetPreviewPageCollection(IPrintDocumentPackageTarget* doc_target,
IPrintPreviewPageCollection** doc_collection)
{
HRESULT hr = (doc_target != nullptr) ? S_OK : E_INVALIDARG;
if (SUCCEEDED(hr))
{
hr = doc_target->GetPackageTarget(ID_PREVIEWPACKAGETARGET_DXGI,
IID_PPV_ARGS(&m_dxgi_previewtarget));
}
ComPtr<IPrintPreviewPageCollection> page_collection;
if (SUCCEEDED(hr))
{
ComPtr<PrintPages> docSource(this);
hr = docSource.As<IPrintPreviewPageCollection>(&page_collection);
}
if (SUCCEEDED(hr))
hr = page_collection.CopyTo(doc_collection);
if (SUCCEEDED(hr))
this->m_renderer->SetPrintTarget((void*) this);
return hr;
}
IFACEMETHODIMP
PrintPages::MakeDocument(IInspectable* doc_options, IPrintDocumentPackageTarget* doc_target)
{
if (doc_options == nullptr || doc_target == nullptr)
return E_INVALIDARG;
PrintTaskOptions^ option = reinterpret_cast<PrintTaskOptions^>(doc_options);
PrintPageDescription page_desc = option->GetPageDescription(1);
D2D1_PRINT_CONTROL_PROPERTIES print_properties;
print_properties.rasterDPI = (float)(min(page_desc.DpiX, page_desc.DpiY));
print_properties.colorSpace = D2D1_COLOR_SPACE_SRGB;
print_properties.fontSubset = D2D1_PRINT_FONT_SUBSET_MODE_DEFAULT;
HRESULT hr = S_OK;
try
{
m_renderer->CreatePrintControl(doc_target, &print_properties);
D2D1_RECT_F imageableRect = D2D1::RectF(page_desc.ImageableRect.X,
page_desc.ImageableRect.Y,
page_desc.ImageableRect.X + page_desc.ImageableRect.Width,
page_desc.ImageableRect.Y + page_desc.ImageableRect.Height);
D2D1_SIZE_F pageSize = D2D1::SizeF(page_desc.PageSize.Width, page_desc.PageSize.Height);
m_totalpages = m_renderer->GetPrintPageCount();
for (uint32 page_num = 1; page_num <= m_totalpages; ++page_num)
m_renderer->PrintPage(page_num, imageableRect, pageSize, (float) page_desc.DpiX, nullptr);
}
catch (Platform::Exception^ e)
{
hr = e->HResult;
}
HRESULT hrClose = m_renderer->ClosePrintControl();
if (SUCCEEDED(hr))
{
hr = hrClose;
}
return hr;
}
#pragma endregion IDocumentPageSource Methods
#pragma region IPrintPreviewPageCollection Methods
IFACEMETHODIMP
PrintPages::Paginate(uint32 current_jobpage, IInspectable* doc_options)
{
HRESULT hr = (doc_options != nullptr) ? S_OK : E_INVALIDARG;
if (SUCCEEDED(hr))
{
PrintTaskOptions^ option = reinterpret_cast<PrintTaskOptions^>(doc_options);
PrintPageDescription page_desc = option->GetPageDescription(current_jobpage);
hr = m_dxgi_previewtarget->InvalidatePreview();
m_totalpages = m_renderer->GetPrintPageCount();
if (SUCCEEDED(hr))
hr = m_dxgi_previewtarget->SetJobPageCount(PageCountType::FinalPageCount, m_totalpages);
if (SUCCEEDED(hr))
{
m_width = page_desc.PageSize.Width;
m_height = page_desc.PageSize.Height;
m_imageable_rect = D2D1::RectF(page_desc.ImageableRect.X, page_desc.ImageableRect.Y,
page_desc.ImageableRect.X + page_desc.ImageableRect.Width,
page_desc.ImageableRect.Y + page_desc.ImageableRect.Height);
m_paginate_called = true;
}
}
return hr;
}
float
PrintPages::TransformedPageSize(float desired_width, float desired_height,
Windows::Foundation::Size* preview_size)
{
float scale = 1.0f;
if (desired_width > 0 && desired_height > 0)
{
preview_size->Width = desired_width;
preview_size->Height = desired_height;
scale = m_width / desired_width;
}
else
{
preview_size->Width = 0;
preview_size->Height = 0;
}
return scale;
}
void
PrintPages::ResetPreview()
{
m_dxgi_previewtarget->InvalidatePreview();
}
IFACEMETHODIMP
PrintPages::MakePage(uint32 desired_jobpage, float width, float height)
{
HRESULT hr = (width > 0 && height > 0) ? S_OK : E_INVALIDARG;
if (desired_jobpage == JOB_PAGE_APPLICATION_DEFINED && m_paginate_called)
desired_jobpage = 1;
if (SUCCEEDED(hr) && m_paginate_called)
{
Windows::Foundation::Size preview_size;
float scale = TransformedPageSize(width, height, &preview_size);
try
{
m_renderer->DrawPreviewSurface(preview_size.Width, preview_size.Height,
scale, m_imageable_rect, desired_jobpage,
m_dxgi_previewtarget.Get());
}
catch (Platform::Exception^ e)
{
hr = e->HResult;
}
}
return hr;
}
#pragma region IPrintPreviewPageCollection Methods
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