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fix text_editor line color issue

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This commit is contained in:
Jinhao 2017-04-30 04:32:23 +08:00
parent 0511a300d6
commit 855694e8c7
2 changed files with 16 additions and 9 deletions
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2
include/nana/gui/widgets/skeletons/text_editor.hpp
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@ -213,7 +213,7 @@ namespace nana{ namespace widgets
bool try_refresh();
private:
nana::color _m_draw_colored_area(paint::graphics& graph, std::size_t line_pos);
nana::color _m_draw_colored_area(paint::graphics& graph, const std::pair<std::size_t,std::size_t>& row, bool whole_line);
std::vector<upoint> _m_render_text(const ::nana::color& text_color);
void _m_pre_calc_lines(std::size_t line_off, std::size_t lines);

23
source/gui/widgets/skeletons/text_editor.cpp
View File

@ -2656,17 +2656,24 @@ namespace nana{ namespace widgets
return false;
}
color text_editor::_m_draw_colored_area(paint::graphics& graph, std::size_t line_pos)
color text_editor::_m_draw_colored_area(paint::graphics& graph, const std::pair<std::size_t, std::size_t>& row, bool whole_line)
{
auto area = impl_->colored_area.find(line_pos);
auto area = impl_->colored_area.find(row.first);
if (area)
{
if (!area->bgcolor.invisible())
{
auto top = _m_caret_to_screen(upoint{ 0, static_cast<unsigned>(line_pos) }).y;
auto const height = line_height();
const unsigned pixels = line_height();
const rectangle area_r = { text_area_.area.x, top, width_pixels(), static_cast<unsigned>(pixels * impl_->capacities.behavior->take_lines(line_pos))};
auto top = _m_caret_to_screen(upoint{ 0, static_cast<unsigned>(row.first) }).y;
std::size_t lines = 1;
if (whole_line)
lines = impl_->capacities.behavior->take_lines(row.first);
else
top += height * row.second;
const rectangle area_r = { text_area_.area.x, top, width_pixels(), static_cast<unsigned>(height * lines) };
if (API::is_transparent_background(this->window_))
graph.blend(area_r, area->bgcolor, 1);
@ -2705,7 +2712,7 @@ namespace nana{ namespace widgets
if (row.first >= line_count)
break;
auto fgcolor = _m_draw_colored_area(graph_, row.first);
auto fgcolor = _m_draw_colored_area(graph_, row, false);
if (fgcolor.invisible())
fgcolor = text_color;
@ -2945,11 +2952,11 @@ namespace nana{ namespace widgets
if (!API::dev::copy_transparent_background(window_, update_area, graph_, update_area.position()))
{
_m_draw_colored_area(graph_, pos);
_m_draw_colored_area(graph_, { pos, 0 }, true);
graph_.rectangle(update_area, true, API::bgcolor(window_));
}
else
_m_draw_colored_area(graph_, pos);
_m_draw_colored_area(graph_, { pos, 0 }, true);
auto fgcolor = API::fgcolor(window_);
auto text_ptr = textbase().getline(pos).c_str();