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Added Windows-style mouse double-click to the textbox

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- the word under cursor is selected with double-click now
 - tested in both editable and read-only modes

This addresses #226.
This commit is contained in:
Oleg Smolsky
2017-07-12 10:45:04 -07:00
parent 255f5851c6
commit e8755e6283
4 changed files with 59 additions and 14 deletions
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65
source/gui/widgets/skeletons/text_editor.cpp
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@@ -440,7 +440,7 @@ namespace nana{ namespace widgets
break;
}
return *colored_areas_.emplace(i,
return *colored_areas_.emplace(i,
std::make_shared<colored_area_type>(colored_area_type{line_pos, 1, color{}, color{}})
);
}
@@ -1129,7 +1129,7 @@ namespace nana{ namespace widgets
}
}
}
colored_area_access_interface& text_editor::colored_area()
{
return impl_->colored_area;
@@ -1580,6 +1580,43 @@ namespace nana{ namespace widgets
}
}
bool text_editor::select_word(const arg_mouse& arg)
{
if(!attributes_.enable_caret)
return false;
auto is_whitespace = [](wchar_t c) {
switch (c) {
case L' ':
case L'\t':
case L'\n':
case L'\r':
return true;
default:
return false;
}
};
// Set caret pos by screen point and get the caret pos.
mouse_caret(arg.pos, true);
// Set the initial selection: it is an empty range.
select_.a = select_.b = points_.caret;
const auto& line = impl_->textbase.getline(select_.b.y);
// Expand the selection forward to the word's end.
while (select_.b.x < line.size() && !is_whitespace(line[select_.b.x]))
++select_.b.x;
// Expand the selection backward to the word's start.
while (select_.a.x > 0 && !is_whitespace(line[select_.a.x - 1]))
--select_.a.x;
select_.mode_selection = selection::mode::method_selected;
impl_->try_refresh = sync_graph::refresh;
return true;
}
textbase<text_editor::char_type> & text_editor::textbase()
{
return impl_->textbase;
@@ -1661,7 +1698,7 @@ namespace nana{ namespace widgets
}
bool text_editor::move_caret(const upoint& crtpos, bool reset_caret)
{
{
const unsigned line_pixels = line_height();
//The coordinate of caret
@@ -1766,7 +1803,7 @@ namespace nana{ namespace widgets
impl_->try_refresh = sync_graph::refresh;
return true;
}
select_.mode_selection = selection::mode::no_selected;
if (_m_cancel_select(0))
{
@@ -1914,10 +1951,10 @@ namespace nana{ namespace widgets
if ((false == textbase().empty()) || has_focus)
{
auto text_pos = _m_render_text(fgcolor);
if (text_pos.empty())
text_pos.emplace_back(upoint{});
if (text_pos != impl_->text_position)
{
impl_->text_position.swap(text_pos);
@@ -2276,7 +2313,7 @@ namespace nana{ namespace widgets
//The number of charecters in the line of caret
auto const text_length = textbase().getline(points_.caret.y).size();
switch (key) {
case keyboard::os_arrow_left:
if (select_.move_to_end && (select_.a != select_.b) && (!arg.shift))
@@ -2460,7 +2497,7 @@ namespace nana{ namespace widgets
lines = impl_->capacities.behavior->take_lines(row.first);
else
top += static_cast<int>(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_))
@@ -2757,7 +2794,7 @@ namespace nana{ namespace widgets
const unsigned pixels = line_height();
const rectangle update_area = { text_area_.area.x, top, width_pixels(), static_cast<unsigned>(pixels * secondary_count_before) };
if (!API::dev::copy_transparent_background(window_, update_area, graph_, update_area.position()))
{
_m_draw_colored_area(graph_, { pos, 0 }, true);
@@ -3047,7 +3084,7 @@ namespace nana{ namespace widgets
this->points_.caret = (1 == align ? a : b);
this->_m_adjust_view();
}
select_.a = select_.b = points_.caret;
reset_caret();
return true;
@@ -3195,7 +3232,7 @@ namespace nana{ namespace widgets
auto px = static_cast<int>(line_height());
return (px ? (impl_->cview->origin().y / px) : px);
}
int text_editor::_m_text_x(const text_section& sct) const
{
auto const behavior = impl_->capacities.behavior;
@@ -3292,7 +3329,7 @@ namespace nana{ namespace widgets
void write_selection(const point& text_pos, unsigned text_px, const wchar_t* text, std::size_t len, bool has_focused)
{
graph_.palette(true, editor_.scheme_->selection_text.get_color());
graph_.rectangle(::nana::rectangle{ text_pos, { text_px, line_px_ } }, true,
graph_.rectangle(::nana::rectangle{ text_pos, { text_px, line_px_ } }, true,
has_focused ? editor_.scheme_->selection.get_color() : editor_.scheme_->selection_unfocused.get_color());
graph_.string(text_pos, text, len);
}
@@ -3345,7 +3382,7 @@ namespace nana{ namespace widgets
const auto line_h_pixels = line_height();
helper_pencil pencil(graph_, *this, parser);
graph_.palette(true, clr);
graph_.palette(false, scheme_->selection.get_color());
@@ -3567,7 +3604,7 @@ namespace nana{ namespace widgets
return 0;
auto const reordered = unicode_reorder(lnstr.c_str(), lnstr.size());
auto target = lnstr.c_str() + pos;
unsigned text_w = 0;