99 lines
3.5 KiB
C
99 lines
3.5 KiB
C
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#pragma once
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#include <string>
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#include <cgv/base/named.h>
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#include <cgv/data/ref_ptr.h>
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#include <cgv/media/font/font.h>
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#include "lib_begin.h"
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namespace cgv {
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namespace gui {
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/** implement this interface to interact with the text editor*/
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struct CGV_API text_editor_callback_handler
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{
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/// called when the editor window is closed
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virtual void on_close_editor();
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/// called when new file has been read
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virtual void after_read();
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/// called when text has been saved
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virtual void after_save();
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/// called when nr_inserted characters have been inserted at text_pos
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virtual void on_text_insertion(int text_pos, int nr_inserted);
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/// called when the nr_deleted characters in deleted_text have been deleted at text position text_pos
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virtual void on_text_deletion(int text_pos, int nr_deleted, const char* deleted_text);
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/// called when text has been saved
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virtual void on_update_callback();
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};
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/** description of a text style*/
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struct text_style
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{
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/// rgb color packed into one integer, i.e. 0xff00ff corresponds to magenta
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int color;
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/// font face string with font name first, followed by +bold and or +italic
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cgv::media::font::font_face_ptr font_face;
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/// font size in pixels
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float font_size;
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};
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/// abstract base class for text editors
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class CGV_API text_editor : public base::named
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{
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protected:
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/// store a callback handler
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text_editor_callback_handler* handler;
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public:
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/// construct from callback handler
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text_editor(const std::string& name, text_editor_callback_handler* _handler = 0);
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/// set a new callback handler
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void set_callback_handler(text_editor_callback_handler* _handler);
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/// return current callback handler
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const text_editor_callback_handler* get_callback_handler() const;
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/// virtual destructor
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virtual ~text_editor();
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/// set a different base path used for the file open and save dialog
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virtual void set_base_path(const std::string& path) = 0;
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/// set a file filter for the file open and save dialog, default is "*"
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virtual void set_filter(const std::string& filter) = 0;
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/// read a new text file
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virtual bool read(const std::string& file_name) = 0;
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/// check if the current file is modified
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virtual bool is_modified() const = 0;
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/// save the current file
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virtual bool save() = 0;
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/// show editor
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virtual void show() = 0;
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/// hide editor
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virtual void hide() = 0;
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/// return whether editor is visible
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virtual bool is_visible() const = 0;
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/// return pointer to text buffer
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virtual const char* get_text() const = 0;
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/// replace the complete text
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virtual void set_text(const std::string& new_text) = 0;
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/// return pointer to style buffer
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virtual const char* get_style() const = 0;
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/// set the style of a given text portion
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virtual void set_style(int text_pos, int length, const char* style) = 0;
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/// return length of text and style buffer
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virtual unsigned int get_length() const = 0;
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/// set text styles from a table, where the first style is labeled with the character A, the snd by B, etc.
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virtual void set_text_styles(const text_style* table, int nr_styles) = 0;
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};
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/// ref counted pointer to abst control
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typedef data::ref_ptr<text_editor> text_editor_ptr;
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#if _MSC_VER >= 1400
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CGV_TEMPLATE template class CGV_API data::ref_ptr<text_editor_ptr>;
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#endif
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/// use the currently registered gui driver to construct a new text editor in a separate window of given size, title and position
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extern CGV_API text_editor_ptr create_text_editor(unsigned int w, unsigned int h, const std::string& title, int x=-1, int y=-1);
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}
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}
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#include <cgv/config/lib_end.h>
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