void wxRichTextPrintout::OnPreparePrinting()
{
wxBusyCursor wait;
m_numPages = 1;
m_pageBreaksStart.Clear();
m_pageBreaksEnd.Clear();
int lastStartPos = 0;
wxRect rect, headerRect, footerRect;
/// Sets the DC scaling and returns important page rectangles
CalculateScaling(GetDC(), rect, headerRect, footerRect);
if (GetRichTextBuffer())
{
GetRichTextBuffer()->Invalidate(wxRICHTEXT_ALL);
GetRichTextBuffer()->Layout(*GetDC(), rect, wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT);
// Now calculate the page breaks
int yOffset = 0;
wxRichTextLine* lastLine = NULL;
wxRichTextObjectList::compatibility_iterator node = GetRichTextBuffer()->GetChildren().GetFirst();
while (node)
{
// child is a paragraph
wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
wxASSERT (child != NULL);
wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
while (node2)
{
wxRichTextLine* line = node2->GetData();
// Set the line to the page-adjusted position
line->SetPosition(wxPoint(line->GetPosition().x, line->GetPosition().y - yOffset));
int lineY = child->GetPosition().y + line->GetPosition().y;
// Break the page if either we're going off the bottom, or this paragraph specifies
// an explicit page break
if (((lineY + line->GetSize().y) > rect.GetBottom()) ||
((node2 == child->GetLines().GetFirst()) && child->GetAttributes().HasPageBreak()))
{
// New page starting at this line
int newY = rect.y;
// We increase the offset by the difference between new and old positions
int increaseOffsetBy = lineY - newY;
yOffset += increaseOffsetBy;
line->SetPosition(wxPoint(line->GetPosition().x, newY - child->GetPosition().y));
if (!lastLine)
lastLine = line;
m_pageBreaksStart.Add(lastStartPos);
m_pageBreaksEnd.Add(lastLine->GetAbsoluteRange().GetEnd());
lastStartPos = line->GetAbsoluteRange().GetStart();
m_numPages ++;
}
lastLine = line;
node2 = node2->GetNext();
}
node = node->GetNext();
}
// Closing page break
if (m_pageBreaksStart.GetCount() == 0 || (m_pageBreaksEnd[m_pageBreaksEnd.GetCount()-1] < (GetRichTextBuffer()->GetRange().GetEnd()-1)))
{
m_pageBreaksStart.Add(lastStartPos);
m_pageBreaksEnd.Add(GetRichTextBuffer()->GetRange().GetEnd());
}
}
}
void wxRichTextPrintout::OnPreparePrinting()
{
wxBusyCursor wait;
m_numPages = 1;
m_pageBreaksStart.Clear();
m_pageBreaksEnd.Clear();
m_pageYOffsets.Clear();
int lastStartPos = 0;
wxRect rect, headerRect, footerRect;
/// Sets the DC scaling and returns important page rectangles
CalculateScaling(GetDC(), rect, headerRect, footerRect);
if (GetRichTextBuffer())
{
GetRichTextBuffer()->Invalidate(wxRICHTEXT_ALL);
wxRichTextDrawingContext context(GetRichTextBuffer());
GetRichTextBuffer()->Layout(*GetDC(), context, rect, rect, wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT);
// Now calculate the page breaks
int yOffset = 0;
wxRichTextLine* lastLine = NULL;
wxRichTextObjectList::compatibility_iterator node = GetRichTextBuffer()->GetChildren().GetFirst();
while (node)
{
// child is a paragraph
wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
wxASSERT (child != NULL);
if (child)
{
wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
while (node2)
{
wxRichTextLine* line = node2->GetData();
int lineY = child->GetPosition().y + line->GetPosition().y - yOffset;
bool hasHardPageBreak = ((node2 == child->GetLines().GetFirst()) && child->GetAttributes().HasPageBreak());
// Break the page if either we're going off the bottom, or this paragraph specifies
// an explicit page break
if (((lineY + line->GetSize().y) > rect.GetBottom()) || hasHardPageBreak)
{
// Only if we're not at the start of the document, and
// even then, only if either it's a hard break or if the object
// can fit in a whole page (otherwise there's no point in making
// the rest of this page blank).
if (lastLine && (hasHardPageBreak || (line->GetSize().y <= rect.GetHeight())))
{
// New page starting at this line
int newY = rect.y;
// We increase the offset by the difference between new and old positions
int increaseOffsetBy = lineY - newY;
yOffset += increaseOffsetBy;
m_pageBreaksStart.Add(lastStartPos);
m_pageBreaksEnd.Add(lastLine->GetAbsoluteRange().GetEnd());
m_pageYOffsets.Add(yOffset);
lastStartPos = line->GetAbsoluteRange().GetStart();
m_numPages ++;
}
lastLine = line;
// Now create page breaks for the rest of the line, if it's larger than the page height
int contentLeft = line->GetSize().y - rect.GetHeight();
while (contentLeft >= 0)
{
yOffset += rect.GetHeight();
contentLeft -= rect.GetHeight();
m_pageBreaksStart.Add(lastStartPos);
m_pageBreaksEnd.Add(lastLine->GetAbsoluteRange().GetEnd());
m_pageYOffsets.Add(yOffset);
m_numPages ++;
}
}
lastLine = line;
node2 = node2->GetNext();
}
}
node = node->GetNext();
}
// Closing page break
m_pageBreaksStart.Add(lastStartPos);
m_pageBreaksEnd.Add(GetRichTextBuffer()->GetOwnRange().GetEnd());
m_pageYOffsets.Add(yOffset);
}
}
void wxRichTextPrintout::RenderPage(wxDC *dc, int page)
{
if (!GetRichTextBuffer())
return;
wxBusyCursor wait;
wxRect textRect, headerRect, footerRect;
/// Sets the DC scaling and returns important page rectangles
CalculateScaling(dc, textRect, headerRect, footerRect);
if (page > 1 || m_headerFooterData.GetShowOnFirstPage())
{
if (m_headerFooterData.GetFont().Ok())
dc->SetFont(m_headerFooterData.GetFont());
else
dc->SetFont(*wxNORMAL_FONT);
if (m_headerFooterData.GetTextColour().Ok())
dc->SetTextForeground(m_headerFooterData.GetTextColour());
else
dc->SetTextForeground(*wxBLACK);
dc->SetBackgroundMode(wxTRANSPARENT);
// Draw header, if any
wxRichTextOddEvenPage oddEven = ((page % 2) == 1) ? wxRICHTEXT_PAGE_ODD : wxRICHTEXT_PAGE_EVEN;
wxString headerTextCentre = m_headerFooterData.GetHeaderText(oddEven, wxRICHTEXT_PAGE_CENTRE);
wxString headerTextLeft = m_headerFooterData.GetHeaderText(oddEven, wxRICHTEXT_PAGE_LEFT);
wxString headerTextRight = m_headerFooterData.GetHeaderText(oddEven, wxRICHTEXT_PAGE_RIGHT);
if (!headerTextLeft.IsEmpty())
{
SubstituteKeywords(headerTextLeft, GetTitle(), page, m_numPages);
//int tx, ty;
//dc->GetTextExtent(headerTextLeft, & tx, & ty);
int x = headerRect.GetLeft();
int y = headerRect.GetX();
dc->DrawText(headerTextLeft, x, y);
}
if (!headerTextCentre.IsEmpty())
{
SubstituteKeywords(headerTextCentre, GetTitle(), page, m_numPages);
int tx, ty;
dc->GetTextExtent(headerTextCentre, & tx, & ty);
int x = headerRect.GetWidth()/2 - tx/2 + headerRect.GetLeft();
int y = headerRect.GetY();
dc->DrawText(headerTextCentre, x, y);
}
if (!headerTextRight.IsEmpty())
{
SubstituteKeywords(headerTextRight, GetTitle(), page, m_numPages);
int tx, ty;
dc->GetTextExtent(headerTextRight, & tx, & ty);
int x = headerRect.GetRight() - tx;
int y = headerRect.GetY();
dc->DrawText(headerTextRight, x, y);
}
// Draw footer, if any
wxString footerTextCentre = m_headerFooterData.GetFooterText(oddEven, wxRICHTEXT_PAGE_CENTRE);
wxString footerTextLeft = m_headerFooterData.GetFooterText(oddEven, wxRICHTEXT_PAGE_LEFT);
wxString footerTextRight = m_headerFooterData.GetFooterText(oddEven, wxRICHTEXT_PAGE_RIGHT);
if (!footerTextLeft.IsEmpty())
{
SubstituteKeywords(footerTextLeft, GetTitle(), page, m_numPages);
int tx, ty;
dc->GetTextExtent(footerTextLeft, & tx, & ty);
int x = footerRect.GetLeft();
int y = footerRect.GetBottom() - ty;
dc->DrawText(footerTextLeft, x, y);
}
if (!footerTextCentre.IsEmpty())
{
SubstituteKeywords(footerTextCentre, GetTitle(), page, m_numPages);
int tx, ty;
dc->GetTextExtent(footerTextCentre, & tx, & ty);
int x = footerRect.GetWidth()/2 - tx/2 + footerRect.GetLeft();
int y = footerRect.GetBottom() - ty;
dc->DrawText(footerTextCentre, x, y);
}
if (!footerTextRight.IsEmpty())
{
SubstituteKeywords(footerTextRight, GetTitle(), page, m_numPages);
int tx, ty;
dc->GetTextExtent(footerTextRight, & tx, & ty);
int x = footerRect.GetRight() - tx;
int y = footerRect.GetBottom() - ty;
dc->DrawText(footerTextRight, x, y);
}
}
wxRichTextRange rangeToDraw(m_pageBreaksStart[page-1], m_pageBreaksEnd[page-1]);
GetRichTextBuffer()->Draw(*dc, rangeToDraw, wxRichTextRange(-1,-1), textRect, 0 /* descent */, wxRICHTEXT_DRAW_IGNORE_CACHE /* flags */);
}
void wxRichTextPrintout::RenderPage(wxDC *dc, int page)
{
if (!GetRichTextBuffer())
return;
wxBusyCursor wait;
wxRect textRect, headerRect, footerRect;
/// Sets the DC scaling and returns important page rectangles
CalculateScaling(dc, textRect, headerRect, footerRect);
if (page > 1 || m_headerFooterData.GetShowOnFirstPage())
{
if (m_headerFooterData.GetFont().IsOk())
dc->SetFont(m_headerFooterData.GetFont());
else
dc->SetFont(*wxNORMAL_FONT);
if (m_headerFooterData.GetTextColour().IsOk())
dc->SetTextForeground(m_headerFooterData.GetTextColour());
else
dc->SetTextForeground(*wxBLACK);
dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
// Draw header, if any
wxRichTextOddEvenPage oddEven = ((page % 2) == 1) ? wxRICHTEXT_PAGE_ODD : wxRICHTEXT_PAGE_EVEN;
wxString headerTextCentre = m_headerFooterData.GetHeaderText(oddEven, wxRICHTEXT_PAGE_CENTRE);
wxString headerTextLeft = m_headerFooterData.GetHeaderText(oddEven, wxRICHTEXT_PAGE_LEFT);
wxString headerTextRight = m_headerFooterData.GetHeaderText(oddEven, wxRICHTEXT_PAGE_RIGHT);
if (!headerTextLeft.IsEmpty())
{
SubstituteKeywords(headerTextLeft, GetTitle(), page, m_numPages);
//int tx, ty;
//dc->GetTextExtent(headerTextLeft, & tx, & ty);
int x = headerRect.GetLeft();
int y = headerRect.GetX();
dc->DrawText(headerTextLeft, x, y);
}
if (!headerTextCentre.IsEmpty())
{
SubstituteKeywords(headerTextCentre, GetTitle(), page, m_numPages);
int tx, ty;
dc->GetTextExtent(headerTextCentre, & tx, & ty);
int x = headerRect.GetWidth()/2 - tx/2 + headerRect.GetLeft();
int y = headerRect.GetY();
dc->DrawText(headerTextCentre, x, y);
}
if (!headerTextRight.IsEmpty())
{
SubstituteKeywords(headerTextRight, GetTitle(), page, m_numPages);
int tx, ty;
dc->GetTextExtent(headerTextRight, & tx, & ty);
int x = headerRect.GetRight() - tx;
int y = headerRect.GetY();
dc->DrawText(headerTextRight, x, y);
}
// Draw footer, if any
wxString footerTextCentre = m_headerFooterData.GetFooterText(oddEven, wxRICHTEXT_PAGE_CENTRE);
wxString footerTextLeft = m_headerFooterData.GetFooterText(oddEven, wxRICHTEXT_PAGE_LEFT);
wxString footerTextRight = m_headerFooterData.GetFooterText(oddEven, wxRICHTEXT_PAGE_RIGHT);
if (!footerTextLeft.IsEmpty())
{
SubstituteKeywords(footerTextLeft, GetTitle(), page, m_numPages);
int tx, ty;
dc->GetTextExtent(footerTextLeft, & tx, & ty);
int x = footerRect.GetLeft();
int y = footerRect.GetBottom() - ty;
dc->DrawText(footerTextLeft, x, y);
}
if (!footerTextCentre.IsEmpty())
{
SubstituteKeywords(footerTextCentre, GetTitle(), page, m_numPages);
int tx, ty;
dc->GetTextExtent(footerTextCentre, & tx, & ty);
int x = footerRect.GetWidth()/2 - tx/2 + footerRect.GetLeft();
int y = footerRect.GetBottom() - ty;
dc->DrawText(footerTextCentre, x, y);
}
if (!footerTextRight.IsEmpty())
{
SubstituteKeywords(footerTextRight, GetTitle(), page, m_numPages);
int tx, ty;
dc->GetTextExtent(footerTextRight, & tx, & ty);
int x = footerRect.GetRight() - tx;
int y = footerRect.GetBottom() - ty;
dc->DrawText(footerTextRight, x, y);
}
}
wxRichTextRange rangeToDraw(m_pageBreaksStart[page-1], m_pageBreaksEnd[page-1]);
wxPoint oldOrigin = dc->GetLogicalOrigin();
double scaleX, scaleY;
dc->GetUserScale(& scaleX, & scaleY);
int yOffset = 0;
if (page > 1)
yOffset = m_pageYOffsets[page-2];
if (yOffset != oldOrigin.y)
dc->SetLogicalOrigin(oldOrigin.x, oldOrigin.y + yOffset);
dc->SetClippingRegion(wxRect(textRect.x, textRect.y + yOffset, textRect.width, textRect.height));
wxRichTextDrawingContext context(GetRichTextBuffer());
GetRichTextBuffer()->Draw(*dc, context, rangeToDraw, wxRichTextSelection(), textRect, 0 /* descent */, wxRICHTEXT_DRAW_IGNORE_CACHE|wxRICHTEXT_DRAW_PRINT /* flags */);
dc->DestroyClippingRegion();
if (yOffset != oldOrigin.y)
dc->SetLogicalOrigin(oldOrigin.x, oldOrigin.y);
}
