qulogic/libgnt

Make the combobox a tiny bit friendlier.
v2.7.3
2010-07-05, Sadrul Habib Chowdhury
ac8d8a62c098
Make the combobox a tiny bit friendlier.

Pressing the first letter of an item will now jump to that item (and
popup the dropdown first if necessary). Add some API in libgnt in the
process.
/**
* @file gnttextview.h Textview API
* @ingroup gnt
*/
/*
* GNT - The GLib Ncurses Toolkit
*
* GNT is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#ifndef GNT_TEXT_VIEW_H
#define GNT_TEXT_VIEW_H
#include "gntwidget.h"
#include "gnt.h"
#include "gntcolors.h"
#include "gntkeys.h"
#define GNT_TYPE_TEXT_VIEW (gnt_text_view_get_gtype())
#define GNT_TEXT_VIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GNT_TYPE_TEXT_VIEW, GntTextView))
#define GNT_TEXT_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GNT_TYPE_TEXT_VIEW, GntTextViewClass))
#define GNT_IS_TEXT_VIEW(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GNT_TYPE_TEXT_VIEW))
#define GNT_IS_TEXT_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GNT_TYPE_TEXT_VIEW))
#define GNT_TEXT_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GNT_TYPE_TEXT_VIEW, GntTextViewClass))
#define GNT_TEXT_VIEW_FLAGS(obj) (GNT_TEXT_VIEW(obj)->priv.flags)
#define GNT_TEXT_VIEW_SET_FLAGS(obj, flags) (GNT_TEXT_VIEW_FLAGS(obj) |= flags)
#define GNT_TEXT_VIEW_UNSET_FLAGS(obj, flags) (GNT_TEXT_VIEW_FLAGS(obj) &= ~(flags))
typedef struct _GntTextView GntTextView;
typedef struct _GntTextViewPriv GntTextViewPriv;
typedef struct _GntTextViewClass GntTextViewClass;
typedef enum
{
GNT_TEXT_VIEW_NO_SCROLL = 1 << 0,
GNT_TEXT_VIEW_WRAP_CHAR = 1 << 1,
GNT_TEXT_VIEW_TOP_ALIGN = 1 << 2,
} GntTextViewFlag;
struct _GntTextView
{
GntWidget parent;
GString *string;
GList *list; /* List of GntTextLine */
GList *tags; /* A list of tags */
GntTextViewFlag flags;
};
typedef enum
{
GNT_TEXT_FLAG_NORMAL = 0,
GNT_TEXT_FLAG_BOLD = 1 << 0,
GNT_TEXT_FLAG_UNDERLINE = 1 << 1,
GNT_TEXT_FLAG_BLINK = 1 << 2,
GNT_TEXT_FLAG_DIM = 1 << 3,
GNT_TEXT_FLAG_HIGHLIGHT = 1 << 4,
} GntTextFormatFlags;
struct _GntTextViewClass
{
GntWidgetClass parent;
void (*gnt_reserved1)(void);
void (*gnt_reserved2)(void);
void (*gnt_reserved3)(void);
void (*gnt_reserved4)(void);
};
G_BEGIN_DECLS
/**
* @return GType for GntTextView.
*/
GType gnt_text_view_get_gtype(void);
/**
* Create a new textview.
*
* @return The newly created textview.
*/
GntWidget * gnt_text_view_new(void);
/**
* Scroll the textview.
* @param view The textview to scroll.
* @param scroll scroll > 0 means scroll up, < 0 means scroll down, == 0 means scroll to the end.
*/
void gnt_text_view_scroll(GntTextView *view, int scroll);
/**
* Append new text in a textview.
*
* @param view The textview.
* @param text The text to append to the textview.
* @param flags The text-flags to apply to the new text.
*/
void gnt_text_view_append_text_with_flags(GntTextView *view, const char *text, GntTextFormatFlags flags);
/**
* Append text in the textview, with some identifier (tag) for the added text.
*
* @param view The textview.
* @param text The text to append.
* @param flags The text-flags to apply to the new text.
* @param tag The tag for the appended text, so it can be changed later (@see gnt_text_view_tag_change)
*/
void gnt_text_view_append_text_with_tag(GntTextView *view, const char *text, GntTextFormatFlags flags, const char *tag);
/**
* Move the cursor to the beginning of the next line and resets text-attributes.
* It first completes the current line with the current text-attributes.
*
* @param view The textview.
*/
void gnt_text_view_next_line(GntTextView *view);
/**
* Convert GNT-text formats to ncurses-text attributes.
*
* @param flags The GNT text format.
*
* @return Nucrses text attribute.
*/
chtype gnt_text_format_flag_to_chtype(GntTextFormatFlags flags);
/**
* Clear the contents of the textview.
*
* @param view The textview.
*/
void gnt_text_view_clear(GntTextView *view);
/**
* The number of lines below the bottom-most visible line.
*
* @param view The textview.
*
* @return Number of lines below the bottom-most visible line.
*/
int gnt_text_view_get_lines_below(GntTextView *view);
/**
* The number of lines above the topmost visible line.
*
* @param view The textview.
*
* @return Number of lines above the topmost visible line.
*/
int gnt_text_view_get_lines_above(GntTextView *view);
/**
* Change the text of a tag.
*
* @param view The textview.
* @param name The name of the tag.
* @param text The new text for the text. If 'text' is @c NULL, the tag is removed.
* @param all @c TRUE if all of the instancess of the tag should be changed, @c FALSE if
* only the first instance should be changed.
*
* @return The number of instances changed.
*/
int gnt_text_view_tag_change(GntTextView *view, const char *name, const char *text, gboolean all);
/**
* Setup hooks so that pressing up/down/page-up/page-down keys when 'widget' is
* in focus scrolls the textview.
*
* @param view The textview.
* @param widget The trigger widget.
*/
void gnt_text_view_attach_scroll_widget(GntTextView *view, GntWidget *widget);
/**
* Setup appropriate hooks so that pressing some keys when the 'pager' widget
* is in focus triggers the PAGER to popup with the contents of the textview
* in it.
*
* The default key-combination to trigger the pager is a-v, and the default
* PAGER application is $PAGER. Both can be changed in ~/.gntrc like this:
*
* @code
* [pager]
* key = a-v
* path = /path/to/pager
* @endcode
*
* @param view The textview.
* @param pager The widget to trigger the PAGER.
*/
void gnt_text_view_attach_pager_widget(GntTextView *view, GntWidget *pager);
/**
* Setup appropriate hooks so that pressing some keys when 'widget'
* is in focus triggers the EDITOR to popup with the contents of the textview
* in it.
*
* The default key-combination to trigger the pager is a-e, and the default
* EDITOR application is $EDITOR. Both can be changed in ~/.gntrc like this:
*
* @code
* [editor]
* key = a-e
* path = /path/to/editor
* @endcode
*
* @param view The textview.
* @param widget The widget to trigger the EDITOR.
*/
void gnt_text_view_attach_editor_widget(GntTextView *view, GntWidget *widget);
/**
* Set a GntTextViewFlag for the textview widget.
*
* @param view The textview widget
* @param flag The flag to set
*
* @since 2.0.0 (gnt), 2.1.0 (pidgin)
*/
void gnt_text_view_set_flag(GntTextView *view, GntTextViewFlag flag);
G_END_DECLS
#endif /* GNT_TEXT_VIEW_H */