Make scrollbar behave better

This commit is contained in:
Dave Davenport 2016-10-26 08:24:34 +02:00
parent 163934fa8c
commit fb459e1660
8 changed files with 64 additions and 51 deletions

View File

@ -46,16 +46,16 @@ typedef struct
*/
typedef enum
{
TB_AUTOHEIGHT = 1 << 0,
TB_AUTOWIDTH = 1 << 1,
TB_LEFT = 1 << 16,
TB_RIGHT = 1 << 17,
TB_CENTER = 1 << 18,
TB_EDITABLE = 1 << 19,
TB_MARKUP = 1 << 20,
TB_WRAP = 1 << 21,
TB_PASSWORD = 1 << 22,
TB_INDICATOR = 1 << 23,
TB_AUTOHEIGHT = 1 << 0,
TB_AUTOWIDTH = 1 << 1,
TB_LEFT = 1 << 16,
TB_RIGHT = 1 << 17,
TB_CENTER = 1 << 18,
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.

View File

@ -36,7 +36,7 @@ struct _widget
void ( *update )( struct _widget * );
/** Handle mouse motion, used for dragging */
gboolean (*motion_notify)( struct _widget *, xcb_motion_notify_event_t * );
gboolean ( *motion_notify )( struct _widget *, xcb_motion_notify_event_t * );
/** widget clicked callback */
widget_clicked_cb clicked;

View File

@ -198,7 +198,7 @@ static char **read_hosts_file ( char ** retv, unsigned int *length )
// Reading one line per time.
while ( getline ( &buffer, &buffer_length, fd ) > 0 ) {
// Evaluate one line.
unsigned int index = 0, ti = 0;
unsigned int index = 0, ti = 0;
char *token = buffer;
// Tokenize it.

View File

@ -194,7 +194,7 @@ static GRegex * create_regex ( const char *input, int case_sensitive )
{
#define R( s ) g_regex_new ( s, G_REGEX_OPTIMIZE | ( ( case_sensitive ) ? 0 : G_REGEX_CASELESS ), 0, NULL )
GRegex * retv = NULL;
gchar *r;
gchar *r;
switch ( config.matching_method )
{
case MM_GLOB:
@ -234,7 +234,7 @@ GRegex **tokenize ( const char *input, int case_sensitive )
}
char *saveptr = NULL, *token;
GRegex **retv = NULL;
GRegex **retv = NULL;
if ( !config.tokenize ) {
retv = g_malloc0 ( sizeof ( GRegex* ) * 2 );
retv[0] = (GRegex *) create_regex ( input, case_sensitive );

View File

@ -65,11 +65,11 @@
#include "gitconfig.h"
// Pidfile.
char *pidfile = NULL;
const char *cache_dir = NULL;
char *pidfile = NULL;
const char *cache_dir = NULL;
/** global structure holding the keyboard status */
struct xkb_stuff xkb = {
struct xkb_stuff xkb = {
.xcb_connection = NULL,
.context = NULL,
.keymap = NULL,
@ -81,23 +81,23 @@ struct xkb_stuff xkb = {
};
/** Path to the configuration file */
char *config_path = NULL;
char *config_path = NULL;
/** Array holding all activated modi. */
Mode **modi = NULL;
Mode **modi = NULL;
/** Number of activated modi in #modi array */
unsigned int num_modi = 0;
unsigned int num_modi = 0;
/** Current selected mode */
unsigned int curr_switcher = 0;
unsigned int curr_switcher = 0;
/** Glib main loop. */
GMainLoop *main_loop = NULL;
GMainLoop *main_loop = NULL;
/** GWater xcb source, signalling events from the X server */
GWaterXcbSource *main_loop_source = NULL;
GWaterXcbSource *main_loop_source = NULL;
/** Flag indicating we are in dmenu mode. */
static int dmenu_mode = FALSE;
static int dmenu_mode = FALSE;
/** Rofi's return code */
int return_code = EXIT_SUCCESS;
int return_code = EXIT_SUCCESS;
void process_result ( RofiViewState *state );
@ -352,7 +352,7 @@ static int add_mode ( const char * token )
}
else
#endif // WINDOW_MODE
// SSh dialog
// SSh dialog
if ( strcasecmp ( token, "ssh" ) == 0 ) {
modi[num_modi] = &ssh_mode;
num_modi++;

View File

@ -82,16 +82,29 @@ void scrollbar_set_handle_length ( scrollbar *sb, unsigned int pos_length )
}
}
/**
* The range is the height - handle length.
* r = h - handle;
* handle is the element length of the handle* length of one element.
* handle = r / ( num ) * hl
*
* r = h - r / ( num) *hl
* r*num = num*h - r*hl
* r*num+r*hl = num*h;
* r ( num+hl ) = num*h
* r = (num*h)/(num+hl)
*/
static void scrollbar_draw ( widget *wid, cairo_t *draw )
{
scrollbar *sb = (scrollbar *) wid;
scrollbar *sb = (scrollbar *) wid;
// Calculate position and size.
const short bh = sb->widget.h;
float sec = ( ( bh ) / (float) ( sb->length + sb->pos_length - 2 ) );
short height = sb->pos_length * sec;
short y = sb->pos * sec;
unsigned int r = ( sb->length * wid->h ) / ( (double) ( sb->length + sb->pos_length ) );
unsigned int handle = wid->h - r;
double sec = ( ( r ) / (double) ( sb->length - 1 ) );
unsigned int height = handle;
unsigned int y = sb->pos * sec;
// Set max pos.
y = MIN ( y, bh );
y = MIN ( y, wid->h - handle );
// Never go out of bar.
height = MAX ( 2, height );
// Cap length;
@ -114,13 +127,14 @@ unsigned int scrollbar_clicked ( const scrollbar *sb, int y )
{
if ( sb != NULL ) {
if ( y >= sb->widget.y && y <= ( sb->widget.y + sb->widget.h ) ) {
const short bh = sb->widget.h;
float sec = ( ( bh ) / (float) ( sb->length + sb->pos_length ) );
unsigned int half_handle = MAX ( 1, sec * ( sb->pos_length / 2.0 ) );
unsigned int r = ( sb->length * sb->widget.h ) / ( (double) ( sb->length + sb->pos_length ) );
unsigned int handle = sb->widget.h - r;
double sec = ( ( r ) / (double) ( sb->length - 1 ) );
unsigned int half_handle = handle / 2;
y -= sb->widget.y + half_handle;
y = MIN ( MAX ( 0, y ), sb->widget.h - 2 * half_handle );
unsigned int sel = y / sec;
unsigned int sel = ( ( y ) / sec );
return MIN ( sel, sb->length - 1 );
}
}

View File

@ -47,7 +47,7 @@
#include <rofi.h>
/** Checks if the if x and y is inside rectangle. */
#define INTERSECT( x,y, x1, y1, w1, h1 ) ( ( ((x) >= (x1)) && ((x) < (x1+w1)) ) && ( ((y) >= (y1)) && ((y) < (y1+h1)) ) )
#define INTERSECT( x, y, x1, y1, w1, h1 ) ( ( ( ( x ) >= ( x1 ) ) && ( ( x ) < ( x1 + w1 ) ) ) && ( ( ( y ) >= ( y1 ) ) && ( ( y ) < ( y1 + h1 ) ) ) )
#include "x11-helper.h"
#include "xkb-internal.h"

View File

@ -51,25 +51,24 @@ int main ( G_GNUC_UNUSED int argc, G_GNUC_UNUSED char **argv )
scrollbar_set_handle_length ( sb, 0);
TASSERTE ( sb->pos_length, 1 );
unsigned int cl = scrollbar_clicked ( sb, 10 );
TASSERTE ( cl, 900);
TASSERTE ( cl, 1010);
cl = scrollbar_clicked ( sb, 20 );
TASSERTE ( cl, 1900);
TASSERTE ( cl, 2020);
cl = scrollbar_clicked ( sb, 0 );
TASSERTE ( cl, 0);
cl = scrollbar_clicked ( sb, 99 );
TASSERTE ( cl, 9800);
TASSERTE ( cl, 9999);
scrollbar_set_handle_length ( sb, 1000);
cl = scrollbar_clicked ( sb, 10 );
TASSERTE ( cl, 555);
cl = scrollbar_clicked ( sb, 20 );
TASSERTE ( cl, 1666);
cl = scrollbar_clicked ( sb, 0 );
TASSERTE ( cl, 0);
cl = scrollbar_clicked ( sb, 99 );
TASSERTE ( cl, 9999);
scrollbar_set_max_value ( sb, 100 );
for ( unsigned int i = 1; i < 99; i++ ){
cl = scrollbar_clicked ( sb, i );
TASSERTE ( cl, i-1);
}
scrollbar_set_max_value ( sb, 200 );
for ( unsigned int i = 1; i < 100; i++ ){
cl = scrollbar_clicked ( sb, i );
TASSERTE ( cl, i*2-2);
}
widget_free( WIDGET (sb ) );
}