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new wxHTML printing code ; parser now supports scaling

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4906 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
1999-12-11 21:50:44 +00:00
parent 56ac3e75d4
commit edbd0635f2
12 changed files with 102 additions and 93 deletions
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74
src/html/htmprint.cpp
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@@ -1,4 +1,3 @@
/////////////////////////////////////////////////////////////////////////////
// Name: htmprint.cpp
// Purpose: html printing classes
@@ -49,7 +48,6 @@ wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
m_Parser = new wxHtmlWinParser(NULL);
m_FS = new wxFileSystem();
m_Parser -> SetFS(m_FS);
m_Scale = 1.0;
}
@@ -63,29 +61,18 @@ wxHtmlDCRenderer::~wxHtmlDCRenderer()
void wxHtmlDCRenderer::SetDC(wxDC *dc, int maxwidth)
void wxHtmlDCRenderer::SetDC(wxDC *dc, double pixel_scale)
{
int dx, dy;
wxDisplaySize(&dx, &dy);
m_MaxWidth = maxwidth;
#if 0
m_Scale = (float)dx * 2 / 3 / (float)maxwidth;
// let the width of A4 is approximately 2/3 the screen width
#endif
m_Scale = (float)800 / (float)maxwidth;
// for now, assume screen width = 800 => good results
m_DC = dc;
m_Parser -> SetDC(dc);
m_Parser -> SetDC(m_DC, pixel_scale);
}
void wxHtmlDCRenderer::SetSize(int width, int height)
{
m_Width = (int)(width * m_Scale);
m_Height = (int)(height * m_Scale);
m_Width = width;
m_Height = height;
}
@@ -97,7 +84,6 @@ void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepat
if (m_Cells != NULL) delete m_Cells;
m_FS -> ChangePathTo(basepath, isdir);
m_DC -> SetUserScale(1.0, 1.0);
m_Cells = (wxHtmlContainerCell*) m_Parser -> Parse(html);
m_Cells -> SetIndent(0, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
m_Cells -> Layout(m_Width);
@@ -111,26 +97,21 @@ int wxHtmlDCRenderer::Render(int x, int y, int from, int dont_render)
if (m_Cells == NULL || m_DC == NULL) return 0;
pbreak = (int)(from * m_Scale + m_Height);
pbreak = (int)(from + m_Height);
while (m_Cells -> AdjustPagebreak(&pbreak)) {}
hght = pbreak - (int)(from * m_Scale);
hght = pbreak - from;
if (!dont_render) {
int w, h;
m_DC -> GetSize(&w, &h);
float overallScale = (float)(w/(float)m_MaxWidth) / m_Scale;
m_DC -> SetUserScale(overallScale, overallScale);
m_DC -> SetBrush(*wxWHITE_BRUSH);
m_DC -> SetClippingRegion(x * m_Scale, y * m_Scale, m_Width, hght);
m_DC -> SetClippingRegion(x, y, m_Width, hght);
m_Cells -> Draw(*m_DC,
x * m_Scale, (y - from) * m_Scale,
y * m_Scale, pbreak + (y /*- from*/) * m_Scale);
x, (y - from),
y, pbreak + (y /*- from*/));
m_DC -> DestroyClippingRegion();
}
if (pbreak < m_Cells -> GetHeight()) return (int)(pbreak / m_Scale);
if (pbreak < m_Cells -> GetHeight()) return pbreak;
else return GetTotalHeight();
}
@@ -138,7 +119,7 @@ int wxHtmlDCRenderer::Render(int x, int y, int from, int dont_render)
int wxHtmlDCRenderer::GetTotalHeight()
{
if (m_Cells) return (int)(m_Cells -> GetHeight() / m_Scale);
if (m_Cells) return m_Cells -> GetHeight();
else return 0;
}
@@ -187,7 +168,7 @@ wxHtmlPrintout::~wxHtmlPrintout()
bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
{
int pageWidth, pageHeight, mm_w, mm_h;
int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
float ppmm_h, ppmm_v;
if (!wxPrintout::OnBeginDocument(startPage, endPage)) return FALSE;
@@ -197,9 +178,19 @@ bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
ppmm_h = (float)pageWidth / mm_w;
ppmm_v = (float)pageHeight / mm_h;
int ppiPrinterX, ppiPrinterY;
GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
int ppiScreenX, ppiScreenY;
GetPPIScreen(&ppiScreenX, &ppiScreenY);
wxDisplaySize(&scr_w, &scr_h);
GetDC() -> GetSize(&dc_w, &dc_h);
GetDC() -> SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
/* prepare headers/footers renderer: */
m_RendererHdr -> SetDC(GetDC(), pageWidth);
m_RendererHdr -> SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
m_RendererHdr -> SetSize(ppmm_h * (mm_w - m_MarginLeft - m_MarginTop),
ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
if (m_Headers[0] != wxEmptyString) {
@@ -220,7 +211,7 @@ bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
}
/* prepare main renderer: */
m_Renderer -> SetDC(GetDC(), pageWidth);
m_Renderer -> SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
m_Renderer -> SetSize(ppmm_h * (mm_w - m_MarginLeft - m_MarginTop),
ppmm_v * (mm_h - m_MarginTop - m_MarginBottom) -
m_FooterHeight - m_HeaderHeight -
@@ -339,23 +330,32 @@ void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
{
wxBusyCursor wait;
int pageWidth, pageHeight, mm_w, mm_h;
int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
float ppmm_h, ppmm_v;
GetPageSizePixels(&pageWidth, &pageHeight);
GetPageSizeMM(&mm_w, &mm_h);
ppmm_h = (float)pageWidth / mm_w;
ppmm_v = (float)pageHeight / mm_h;
m_Renderer -> SetDC(dc, pageWidth);
wxDisplaySize(&scr_w, &scr_h);
dc -> GetSize(&dc_w, &dc_h);
int ppiPrinterX, ppiPrinterY;
GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
int ppiScreenX, ppiScreenY;
GetPPIScreen(&ppiScreenX, &ppiScreenY);
dc -> SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
m_Renderer -> SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
dc -> SetBackgroundMode(wxTRANSPARENT);
m_Renderer -> Render(ppmm_h * m_MarginLeft,
ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight,
m_PageBreaks[page-1]);
m_RendererHdr -> SetDC(dc, pageWidth);
m_RendererHdr -> SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
if (m_Headers[page % 2] != wxEmptyString) {
m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
m_RendererHdr -> Render(ppmm_h * m_MarginLeft, ppmm_v * m_MarginTop);