mewin/nana
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

New textbox::getline returning an optional<string>

Browse Source
This commit is contained in:
rbrugo 2018-07-08 12:35:14 +02:00
parent 56a9647d56
commit e08bb0bfe1
2 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
include/nana/gui/widgets/textbox.hpp
View File

@ -17,6 +17,8 @@
#include "skeletons/textbase_export_interface.hpp"
#include "skeletons/text_editor_part.hpp"
#include <nana/optional.hpp>
namespace nana
{
class textbox;
@ -173,6 +175,13 @@ namespace nana
/// Read the text from a specified line with a set offset. It returns true for success.
bool getline(std::size_t line_index,std::size_t offset,std::string& text) const;
/// Read the text from a specified line; returns an empty optional on failure
std::optional<std::string> getline(std::size_t pos) const;
///Read the text from a specified line with a set offset. Returns an empty optional for
/// failure.
std::optional<std::string> getline(std::size_t line_index, std::size_t offset) const;
/// Gets the caret position
/// Returns true if the caret is in the area of display, false otherwise.
bool caret_pos(point& pos, bool text_coordinate) const;

21
source/gui/widgets/textbox.cpp
View File

@ -377,6 +377,27 @@ namespace drawerbase {
return false;
}
std::optional<std::string> textbox::getline(std::size_t pos) const
{
auto result = std::string{};
if ( getline(pos, result) )
{
return { std::move(result) };
}
return {};
}
std::optional<std::string> textbox::getline(std::size_t line_index, std::size_t offset) const
{
auto result = std::string{};
if ( getline(line_index, offset, result) )
{
return { std::move(result) };
}
return {};
}
/// Gets the caret position
bool textbox::caret_pos(point& pos, bool text_coordinate) const
{