rofi/include/widgets/textbox.h
Dave Davenport c10ee955bd
#1437 - Fix sizing logic for widgets and textboxes. (#1444)
* [I1437] Textbox make get_desired_width depend on width.

Should fix some weird sizing issues on creation of widgest.


* [i1437] [View] Do the sizing based on the desired window width.

issue: #1437

* [i1437] Fix header documentation.
2021-09-07 19:40:07 +02:00

340 lines
8.7 KiB
C

/*
* rofi
*
* MIT/X11 License
* Copyright © 2013-2017 Qball Cow <qball@gmpclient.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifndef ROFI_TEXTBOX_H
#define ROFI_TEXTBOX_H
#include "keyb.h"
#include "widgets/widget-internal.h"
#include "widgets/widget.h"
#include <cairo.h>
#include <pango/pango-fontmap.h>
#include <pango/pango.h>
#include <pango/pangocairo.h>
#include <xkbcommon/xkbcommon.h>
/**
* @defgroup Textbox Textbox
* @ingroup widget
*
* @{
*/
/** Cache to hold font descriptions. This it to avoid having to lookup each
* time. */
typedef struct TBFontConfig {
/** Font description */
PangoFontDescription *pfd;
/** Font metrics */
PangoFontMetrics *metrics;
/** height */
double height;
} TBFontConfig;
/**
* Internal structure of a textbox widget.
* TODO make this internal to textbox
*/
typedef struct {
widget widget;
unsigned long flags;
short cursor;
char *text;
const char *placeholder;
int show_placeholder;
PangoLayout *layout;
int tbft;
int markup;
int changed;
int blink;
guint blink_timeout;
double yalign;
double xalign;
TBFontConfig *tbfc;
PangoEllipsizeMode emode;
//
const char *theme_name;
} textbox;
/**
* Flags for configuring textbox behaviour and looks during creation.
*/
typedef enum {
TB_AUTOHEIGHT = 1 << 0,
TB_AUTOWIDTH = 1 << 1,
TB_EDITABLE = 1 << 19,
TB_MARKUP = 1 << 20,
TB_WRAP = 1 << 21,
TB_PASSWORD = 1 << 22,
TB_INDICATOR = 1 << 23,
} TextboxFlags;
/**
* Flags indicating current state of the textbox.
*/
typedef enum {
/** Normal */
NORMAL = 0,
/** Text in box is urgent. */
URGENT = 1,
/** Text in box is active. */
ACTIVE = 2,
/** Text in box is selected. */
SELECTED = 4,
/** Text in box has pango markup. */
MARKUP = 8,
/** Text is on an alternate row */
ALT = 16,
/** Render font highlighted (inverted colors.) */
HIGHLIGHT = 32,
/** Mask for alternate and highlighted */
FMOD_MASK = (ALT | HIGHLIGHT),
/** Mask of bits indicating state */
STATE_MASK = ~(SELECTED | MARKUP | ALT | HIGHLIGHT)
} TextBoxFontType;
/**
* @param parent The widget's parent.
* @param type The type of the to be created widget.
* @param name The name of the to be created widget.
* @param flags #TextboxFlags indicating the type of textbox.
* @param tbft #TextBoxFontType current state of textbox.
* @param text initial text to display.
* @param xalign Set the Xalign value.
* @param yalign set the yalign value.
*
* Create a new textbox widget.
*
* free with #widget_free
* @returns a new #textbox
*/
textbox *textbox_create(widget *parent, WidgetType type, const char *name,
TextboxFlags flags, TextBoxFontType tbft,
const char *text, double xalign, double yalign);
/**
* @param tb Handle to the textbox
* @param tbft The style of font to render.
*
* Set the font render style.
*/
void textbox_font(textbox *tb, TextBoxFontType tbft);
/**
* @param tb Handle to the textbox
* @param text The text to show in the textbox
*
* Set the text to show. Cursor is moved to end (if visible)
*/
void textbox_text(textbox *tb, const char *text);
/**
* @param tb Handle to the textbox
* @param action the #KeyBindingAction to execute on textbox
*
* Execute an action on the textbox.
*
* @return TRUE if action was taken.
*/
int textbox_keybinding(textbox *tb, KeyBindingAction action);
/**
* @param tb Handle to the textbox
* @param pad The text to insert
* @param pad_len the length of the text
*
* The text should be one insert from a keypress.. the first gunichar is
* validated to be (or not) control return TRUE if inserted
*/
gboolean textbox_append_text(textbox *tb, const char *pad, const int pad_len);
/**
* @param tb Handle to the textbox
* @param pos New cursor position
*
* Set the cursor position (string index)
*/
void textbox_cursor(textbox *tb, int pos);
/**
* @param tb Handle to the textbox
* @param char_pos The position to insert the string at
* @param str The string to insert.
* @param slen The length of the string.
*
* Insert the string str at position pos.
*/
void textbox_insert(textbox *tb, const int char_pos, const char *str,
const int slen);
/**
* Setup the cached fonts. This is required to do
* before any of the textbox_ functions is called.
* Clean with textbox_cleanup()
*/
void textbox_setup(void);
/**
* Cleanup the allocated colors and fonts by textbox_setup().
*/
void textbox_cleanup(void);
/**
* @param tb Handle to the textbox
*
* Get the height of the textbox
*
* @returns the height of the textbox in pixels.
*/
int textbox_get_height(const textbox *tb);
/**
* @param tb Handle to the textbox
*
* Get the height of the rendered string.
*
* @returns the height of the string in pixels.
*/
int textbox_get_font_height(const textbox *tb);
/**
* @param tb Handle to the textbox
*
* Get the width of the rendered string.
*
* @returns the width of the string in pixels.
*/
int textbox_get_font_width(const textbox *tb);
/**
* Estimate the width of a character.
*
* @returns the width of a character in pixels.
*/
double textbox_get_estimated_char_width(void);
/**
* Estimate the width of a 0.
*
* @returns the width of a 0 in pixels.
*/
double textbox_get_estimated_ch(void);
/**
* Estimate the height of a character.
*
* @returns the height of a character in pixels.
*/
double textbox_get_estimated_char_height(void);
/**
* @param tb Handle to the textbox
* @param pos The start position
* @param dlen The length
*
* Remove dlen bytes from position pos.
*/
void textbox_delete(textbox *tb, int pos, int dlen);
/**
* @param tb Handle to the textbox
* @param x The new horizontal position to place with textbox
* @param y The new vertical position to place with textbox
* @param w The new width of the textbox
* @param h The new height of the textbox
*
* Move and resize the textbox.
* TODO remove for #widget_resize and #widget_move
*/
void textbox_moveresize(textbox *tb, int x, int y, int w, int h);
/**
* @param tb Handle to the textbox
* @param eh The number of rows to display
*
* Get the (estimated) with of a character, can be used to calculate window
* width. This includes padding.
*
* @returns the estimated width of a character.
*/
int textbox_get_estimated_height(const textbox *tb, int eh);
/**
* @param font The name of the font used.
* @param p The new default PangoContext
*
* Set the default pango context (with font description) for all textboxes.
*/
void textbox_set_pango_context(const char *font, PangoContext *p);
/**
* @param tb Handle to the textbox
* @param list New pango attributes
*
* Sets list as active pango attributes.
*/
void textbox_set_pango_attributes(textbox *tb, PangoAttrList *list);
/**
* @param tb Handle to the textbox
*
* Get the list of currently active pango attributes.
*
* @returns the pango attributes
*/
PangoAttrList *textbox_get_pango_attributes(textbox *tb);
/**
* @param tb Handle to the textbox
*
* @returns the visible text.
*/
const char *textbox_get_visible_text(const textbox *tb);
/**
* @param wid The handle to the textbox.
* @param height The height we want the desired width for
*
* TODO: is this deprecated by widget::get_desired_width
*
* @returns the desired width of the textbox.
*/
int textbox_get_desired_width(widget *wid, const int height);
/**
* @param tb Handle to the textbox
*
* Move the cursor to the end of the string.
*/
void textbox_cursor_end(textbox *tb);
/**
* @param tb Handle to the textbox
* @param mode The PangoEllipsizeMode to use displaying the text in the textbox
*
* Set the ellipsizing mode used on the string.
*/
void textbox_set_ellipsize(textbox *tb, PangoEllipsizeMode mode);
/**@}*/
#endif // ROFI_TEXTBOX_H