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Allow customization of print options via CefHandler::HandlePrintOptions() (issue #112).

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git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@98 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
This commit is contained in:
Marshall Greenblatt
2010-08-31 15:19:33 +00:00
parent 79134a77f2
commit d51d871a52
13 changed files with 455 additions and 73 deletions
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101
libcef/browser_impl_win.cc
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@@ -237,13 +237,11 @@ void CefBrowserImpl::UIT_PrintPage(int page_number, int total_pages,
const printing::PrintSettings &settings = print_context_.settings();
settings.RenderParams(&params);
int src_size_x = canvas_size.width();
int src_size_y = canvas_size.height();
float src_margin = .1f * src_size_x;
const int src_size_x = canvas_size.width();
const int src_size_y = canvas_size.height();
int dest_size_x = settings.page_setup_pixels().physical_size().width();
int dest_size_y = settings.page_setup_pixels().physical_size().height();
float dest_margin = .1f * dest_size_x;
const int dest_size_x = settings.page_setup_pixels().printable_area().width();
const int dest_size_y = settings.page_setup_pixels().printable_area().height();
print_context_.NewPage();
@@ -257,21 +255,26 @@ void CefBrowserImpl::UIT_PrintPage(int page_number, int total_pages,
skia::VectorCanvas canvas(hDC, dest_size_x, dest_size_y);
//The hDC 0 coord is the left most printeable area and not physical area of the paper
//so subtract that out of our canvas translate.
const int left_margin_offset = settings.page_setup_pixels().effective_margins().left -
settings.page_setup_pixels().printable_area().x();
const int top_margin_offset = settings.page_setup_pixels().effective_margins().top -
settings.page_setup_pixels().printable_area().y();
// Adjust for the margin offset.
canvas.translate(dest_margin, dest_margin);
canvas.translate(static_cast<float>(left_margin_offset),
static_cast<float>(top_margin_offset));
// Apply the print scaling factor.
float print_scale = (dest_size_x - dest_margin * 2) / src_size_x;
canvas.scale(print_scale, print_scale);
// Set the clipping region to be sure to not overflow.
SkRect clip_rect;
clip_rect.set(0, 0, static_cast<float>(src_size_x),
static_cast<float>(src_size_y));
canvas.clipRect(clip_rect);
const float print_scale_x = static_cast<float>(settings.page_setup_pixels().content_area().width())
/ src_size_x;
const float print_scale_y = static_cast<float>(settings.page_setup_pixels().content_area().height())
/ src_size_y;
canvas.scale(print_scale_x, print_scale_y);
// Apply the WebKit scaling factor.
float webkit_scale = frame->getPrintPageShrink(page_number);
const float webkit_scale = frame->getPrintPageShrink(page_number);
if (webkit_scale <= 0) {
NOTREACHED() << "Printing page " << page_number << " failed.";
}
@@ -288,13 +291,18 @@ void CefBrowserImpl::UIT_PrintPage(int page_number, int total_pages,
// Gather print header state information
RECT rect;
rect.left = (int)floor(dest_margin / 2);
rect.top = rect.left;
rect.right = (int)ceil(dest_size_x - dest_margin / 2);
rect.bottom = (int)ceil(dest_size_y - dest_margin / 2);
rect.left = left_margin_offset;
rect.top = settings.page_setup_pixels().effective_margins().header -
settings.page_setup_pixels().printable_area().y();
rect.right = left_margin_offset + settings.page_setup_pixels().content_area().width();
rect.bottom = settings.page_setup_pixels().printable_area().height() -
(settings.page_setup_pixels().effective_margins().footer -
(settings.page_setup_pixels().physical_size().height() -
settings.page_setup_pixels().printable_area().bottom()));
const double scale = static_cast<double>(settings.dpi()) /
static_cast<double>(settings.desired_dpi);
double scale = (double)settings.dpi() / (double)settings.desired_dpi;
CefPrintInfo printInfo;
printInfo.m_hDC = hDC;
@@ -374,13 +382,18 @@ void CefBrowserImpl::UIT_PrintPage(int page_number, int total_pages,
void CefBrowserImpl::UIT_PrintPages(WebKit::WebFrame* frame) {
REQUIRE_UIT();
TCHAR printername[512];
DWORD size = sizeof(printername)-1;
if(GetDefaultPrinter(printername, &size)) {
printing::PrintSettings settings;
settings.set_device_name(printername);
// Initialize it.
print_context_.InitWithSettings(settings);
print_context_.Init();
{
// Make a copy of settings.
printing::PrintSettings settings = print_context_.settings();
cef_print_options_t print_options;
settings.UpdatePrintOptions(print_options);
// Ask the handler if they want to update the print options.
if (handler_.get() && RV_HANDLED == handler_->HandlePrintOptions(this, print_options)) {
settings.UpdateFromPrintOptions(print_options);
print_context_.InitWithSettings(settings);
}
}
if(print_context_.AskUserForSettings(
@@ -398,12 +411,12 @@ void CefBrowserImpl::UIT_PrintPages(WebKit::WebFrame* frame) {
canvas_size.set_width(
printing::ConvertUnit(
settings.page_setup_pixels().physical_size().width(),
settings.page_setup_pixels().content_area().width(),
static_cast<int>(params.dpi),
params.desired_dpi));
canvas_size.set_height(
printing::ConvertUnit(
settings.page_setup_pixels().physical_size().height(),
settings.page_setup_pixels().content_area().height(),
static_cast<int>(params.dpi),
params.desired_dpi));
page_count = frame->printBegin(WebSize(canvas_size));
@@ -412,19 +425,19 @@ void CefBrowserImpl::UIT_PrintPages(WebKit::WebFrame* frame) {
bool old_state = MessageLoop::current()->NestableTasksAllowed();
MessageLoop::current()->SetNestableTasksAllowed(false);
// TODO(cef): Use the page title as the document name
print_context_.NewDocument(L"New Document");
if(settings.ranges.size() > 0) {
for (unsigned x = 0; x < settings.ranges.size(); ++x) {
const printing::PageRange& range = settings.ranges[x];
for(int i = range.from; i <= range.to; ++i)
if (print_context_.NewDocument(title_) == printing::PrintingContext::OK) {
if(settings.ranges.size() > 0) {
for (unsigned x = 0; x < settings.ranges.size(); ++x) {
const printing::PageRange& range = settings.ranges[x];
for(int i = range.from; i <= range.to; ++i)
UIT_PrintPage(i, page_count, canvas_size, frame);
}
} else {
for(int i = 0; i < page_count; ++i)
UIT_PrintPage(i, page_count, canvas_size, frame);
}
} else {
for(int i = 0; i < page_count; ++i)
UIT_PrintPage(i, page_count, canvas_size, frame);
print_context_.DocumentDone();
}
print_context_.DocumentDone();
MessageLoop::current()->SetNestableTasksAllowed(old_state);
}
@@ -450,12 +463,12 @@ int CefBrowserImpl::UIT_GetPagesCount(WebKit::WebFrame* frame)
canvas_size.set_width(
printing::ConvertUnit(
settings.page_setup_pixels().physical_size().width(),
settings.page_setup_pixels().content_area().width(),
static_cast<int>(params.dpi),
params.desired_dpi));
canvas_size.set_height(
printing::ConvertUnit(
settings.page_setup_pixels().physical_size().height(),
settings.page_setup_pixels().content_area().height(),
static_cast<int>(params.dpi),
params.desired_dpi));
page_count = frame->printBegin(WebSize(canvas_size));