DenysMedvid/pdf2htmlEX
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fix horizontal space padding

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This commit is contained in:
Lu Wang 2012-08-07 16:44:49 +08:00
parent 8d8a78f794
commit 9d7046e925
3 changed files with 28 additions and 24 deletions
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2
src/BackgroundRenderer.cc
View File

@ -14,7 +14,7 @@ void BackgroundRenderer::drawChar(GfxState *state, double x, double y,
CharCode code, int nBytes, Unicode *u, int uLen)
{
auto font = state->getFont();
// if((font->getType() == fontType3) || (font->getWMode()))
if((font->getType() == fontType3) || (font->getWMode()))
{
SplashOutputDev::drawChar(state, x, y, dx, dy, originX, originY, code, nBytes, u, uLen);
}

42
src/HTMLRenderer.cc
View File

@ -126,8 +126,8 @@ void HTMLRenderer::startPage(int pageNum, GfxState *state)
if(param->readable) html_fout << endl;
cur_fn_id = cur_fs_id = cur_tm_id = cur_color_id = 0;
cur_line_x_offset = 0;
cur_tx = cur_ty = 0;
cur_line_x_offset = 0;
cur_font_size = 0;
memcpy(cur_ctm, id_matrix, sizeof(cur_ctm));
@ -154,7 +154,6 @@ void HTMLRenderer::close_cur_line()
html_fout << "</div>";
if(param->readable) html_fout << endl;
cur_line_x_offset = 0;
line_opened = false;
}
}
@ -198,7 +197,6 @@ void HTMLRenderer::drawString(GfxState * state, GooString * s)
auto font = state->getFont();
if((font == nullptr) || (font->getWMode()))
{
//TODO
return;
}
@ -208,26 +206,24 @@ void HTMLRenderer::drawString(GfxState * state, GooString * s)
// if the line is still open, try to merge with it
if(line_opened)
{
double target = (state->getLineX() - cur_tx - cur_line_x_offset) * draw_scale;
double target = -cur_line_x_offset * draw_scale;
if(target > -param->h_eps)
{
if(target > param->h_eps)
{
double w;
auto wid = install_whitespace(target, w);
cur_line_x_offset = w-target;
cur_tx += w / draw_scale;
cur_line_x_offset = (w - target) / draw_scale;
html_fout << boost::format("<span class=\"w w%|1$x|\"> </span>") % wid;
}
else
{
cur_line_x_offset = -target;
}
}
else
{
// can we shift left using simple tags?
close_cur_line();
cur_tx = state->getLineX();
cur_line_x_offset = 0;
}
}
@ -791,7 +787,7 @@ void HTMLRenderer::check_state_change(GfxState * state)
{
bool close_line = false;
if(all_changed || pos_changed)
if(all_changed || line_pos_changed)
{
double tx = state->getLineX();
double ty = state->getLineY();
@ -801,9 +797,16 @@ void HTMLRenderer::check_state_change(GfxState * state)
close_line = true;
cur_ty = ty;
cur_tx = tx;
cur_line_x_offset = 0;
}
else
{
// LineY remains unchanged
cur_line_x_offset += cur_tx - tx;
}
}
// TODO, we may use nested span if only color has been changed
if(all_changed || color_changed)
{
GfxRGB new_color;
@ -836,10 +839,9 @@ void HTMLRenderer::check_state_change(GfxState * state)
// TODO
// Rise, HorizScale etc
double new_ctm[6];
memcpy(new_ctm, draw_ctm, sizeof(new_ctm));
if(all_changed || text_mat_changed || ctm_changed)
{
double new_ctm[6];
double * m1 = state->getCTM();
double * m2 = state->getTextMat();
new_ctm[0] = m1[0] * m2[0] + m1[2] * m2[1];
@ -848,21 +850,23 @@ void HTMLRenderer::check_state_change(GfxState * state)
new_ctm[3] = m1[1] * m2[2] + m1[3] * m2[3];
new_ctm[4] = new_ctm[5] = 0;
if(!_tm_equal(new_ctm, cur_ctm, 4)) { }
if(!_tm_equal(new_ctm, cur_ctm))
{
need_rescale_font = true;
memcpy(cur_ctm, new_ctm, sizeof(cur_ctm));
}
}
if(need_rescale_font)
{
draw_scale = std::sqrt(new_ctm[2] * new_ctm[2] + new_ctm[3] * new_ctm[3]);
draw_scale = std::sqrt(cur_ctm[2] * cur_ctm[2] + cur_ctm[3] * cur_ctm[3]);
double new_draw_font_size = cur_font_size;
if(_is_positive(draw_scale))
{
new_draw_font_size *= draw_scale;
for(int i = 0; i < 4; ++i)
new_ctm[i] /= draw_scale;
cur_ctm[i] /= draw_scale;
}
else
{
@ -875,9 +879,9 @@ void HTMLRenderer::check_state_change(GfxState * state)
cur_fs_id = install_font_size(draw_font_size);
close_line = true;
}
if(!(_tm_equal(new_ctm, draw_ctm)))
if(!(_tm_equal(cur_ctm, draw_ctm)))
{
memcpy(draw_ctm, new_ctm, sizeof(draw_ctm));
memcpy(draw_ctm, cur_ctm, sizeof(draw_ctm));
cur_tm_id = install_transform_matrix(draw_ctm);
close_line = true;
}
@ -899,7 +903,7 @@ void HTMLRenderer::check_state_change(GfxState * state)
void HTMLRenderer::reset_state_track()
{
all_changed = false;
pos_changed = false;
line_pos_changed = false;
ctm_changed = false;
text_mat_changed = false;
font_changed = false;

8
src/HTMLRenderer.h
View File

@ -96,7 +96,8 @@ class HTMLRenderer : public OutputDev
virtual void updateFont(GfxState * state) { font_changed = true; }
virtual void updateTextMat(GfxState * state) { text_mat_changed = true; }
virtual void updateCTM(GfxState * state, double m11, double m12, double m21, double m22, double m31, double m32) { ctm_changed = true; }
virtual void updateTextPos(GfxState * state) { pos_changed = true; }
virtual void updateTextPos(GfxState * state) { line_pos_changed = true; }
virtual void updateTextShift(GfxState * state, double shift) { cur_line_x_offset += shift * 0.001 * state->getFontSize() * state->getHorizScaling(); }
virtual void updateFillColor(GfxState * state) { color_changed = true; }
//----- text drawing
@ -155,12 +156,11 @@ class HTMLRenderer : public OutputDev
// if we have a pending opened line
bool line_opened;
// (actual x) - (supposed x)
double cur_line_x_offset;
// current position
double cur_tx, cur_ty; // in text coords
bool pos_changed;
double cur_line_x_offset; // in text coords, our position - real position
bool line_pos_changed;
long long cur_fn_id;
double cur_font_size;