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Code Releases Activity

[ListView] Add bar mode.

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This commit is contained in:
Dave Davenport 2017-05-23 09:45:42 +02:00
parent f5c57ff821
commit d592a59252
1 changed files with 147 additions and 3 deletions
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150
source/widgets/listview.c
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@ -37,9 +37,22 @@
#define DEFAULT_SPACING 2
typedef enum {
LISTVIEW = 0,
BARVIEW = 1,
} ViewType;
typedef enum {
LEFT_TO_RIGHT = 0,
RIGHT_TO_LEFT = 1
} MoveDirection;
struct _listview
{
widget widget;
ViewType type;
// RChanged
// Text needs to be repainted.
unsigned int rchanged;
@ -85,6 +98,10 @@ struct _listview
void *mouse_activated_data;
char *listview_name;
/** Barview */
MoveDirection direction;
unsigned int cur_visible;
};
static int listview_get_desired_height ( widget *wid );
@ -104,6 +121,20 @@ static void listview_free ( widget *wid )
static unsigned int scroll_per_page ( listview * lv )
{
int offset = 0;
if ( lv->type == BARVIEW ){
offset = lv->last_offset;
// selected row is always visible.
// If selected is visible do not scroll.
if ( lv->selected < lv->last_offset ) {
offset = lv->selected;
lv->rchanged = TRUE;
} else if ( lv->selected >= (lv->last_offset + lv->cur_visible ) ) {
offset = lv->selected;
lv->rchanged = TRUE;
}
return offset;
}
// selected row is always visible.
// If selected is visible do not scroll.
@ -156,6 +187,92 @@ static void update_element ( listview *lv, unsigned int tb, unsigned int index,
}
}
static void barview_draw ( widget *wid, cairo_t *draw )
{
unsigned int offset = 0;
listview *lv = (listview *) wid;
offset = scroll_per_page ( lv );
lv->last_offset = offset;
printf("offset %d %d lines: %d\n", lv->last_offset, lv->direction, lv->cur_elements);
int spacing_vert = distance_get_pixel ( lv->spacing, ORIENTATION_VERTICAL );
int spacing_hori = distance_get_pixel ( lv->spacing, ORIENTATION_HORIZONTAL );
int left_offset = widget_padding_get_left ( wid );
int right_offset = lv->widget.w - widget_padding_get_right( wid );
int top_offset = widget_padding_get_top ( wid );
if ( lv->cur_elements > 0 ) {
// Set new x/y possition.
unsigned int max = MIN ( lv->cur_elements, lv->req_elements - offset );
if ( lv->rchanged ) {
lv->cur_visible = 0;
int width = lv->widget.w;
width -= widget_padding_get_padding_width ( wid );
if ( lv->direction == LEFT_TO_RIGHT ) {
int first = TRUE;
for ( unsigned int i = 0; i < max&& width > 0; i++ ) {
update_element ( lv, i, i + offset, TRUE );
int twidth = textbox_get_desired_width ( WIDGET(lv->boxes[i]));
if ( twidth >= width ) {
if ( ! first ) {
printf("break: %d\n", twidth);
break;
}
twidth = width;
}
textbox_moveresize ( lv->boxes[i], left_offset, top_offset, twidth, lv->element_height );
widget_draw ( WIDGET ( lv->boxes[i] ), draw );
width -= twidth + spacing_vert;
left_offset += twidth + spacing_vert;
first = FALSE;
lv->cur_visible++ ;
}
} else {
int first = TRUE;
for ( unsigned int i = 0; i < lv->cur_elements && width > 0 && i <= offset; i++ ) {
update_element ( lv, i, offset-i, TRUE );
int twidth = textbox_get_desired_width ( WIDGET ( lv->boxes[i] ));
if ( twidth >= width ) {
if ( ! first ) {
printf("break: %d\n", twidth);
break;
}
twidth = width;
}
right_offset -= twidth;
printf("ro: %d\n", right_offset);
textbox_moveresize ( lv->boxes[i], right_offset, top_offset, twidth, lv->element_height );
widget_draw ( WIDGET ( lv->boxes[i] ), draw );
width -= twidth + spacing_vert;
right_offset -= spacing_vert;
first = FALSE;
lv->cur_visible++ ;
printf("i < offset: %d < %d widht: %d max: %d\n" , i , offset, width,max);
}
offset -= lv->cur_visible-1;
lv->last_offset = offset;
for ( unsigned int i = 0; i < (lv->cur_visible/2); i++)
{
void * temp = lv->boxes[i];
int sw = lv->cur_visible-i-1;
printf("%d <-->%d\n", i, sw);
lv->boxes[i] = lv->boxes[sw];
lv->boxes[sw] = temp;
}
}
lv->rchanged = FALSE;
}
else {
for ( unsigned int i = 0; i < lv->cur_visible; i++ ) {
update_element ( lv, i, i + offset, FALSE );
widget_draw ( WIDGET ( lv->boxes[i] ), draw );
}
}
}
}
static void listview_draw ( widget *wid, cairo_t *draw )
{
unsigned int offset = 0;
@ -220,7 +337,16 @@ static void listview_draw ( widget *wid, cairo_t *draw )
}
widget_draw ( WIDGET ( lv->scrollbar ), draw );
}
static void _listview_draw ( widget *wid, cairo_t *draw )
{
listview *lv = (listview *)wid;
if ( lv->type == LISTVIEW )
{
listview_draw ( wid, draw );
} else {
barview_draw ( wid, draw );
}
}
static void listview_recompute_elements ( listview *lv )
{
unsigned int newne = 0;
@ -271,6 +397,7 @@ void listview_set_selected ( listview *lv, unsigned int selected )
{
if ( lv && lv->req_elements > 0 ) {
lv->selected = MIN ( selected, lv->req_elements - 1 );
lv->direction = LEFT_TO_RIGHT;
widget_queue_redraw ( WIDGET ( lv ) );
}
}
@ -297,6 +424,10 @@ static void listview_resize ( widget *wid, short w, short h )
}
widget_resize ( WIDGET ( lv->scrollbar ), widget_get_width ( WIDGET ( lv->scrollbar ) ), height );
if ( lv->type == BARVIEW ) {
lv->max_elements = lv->menu_lines;
}
listview_recompute_elements ( lv );
widget_queue_redraw ( wid );
}
@ -366,7 +497,7 @@ listview *listview_create ( const char *name, listview_update_callback cb, void
lv->listview_name = g_strdup ( name );
lv->widget.free = listview_free;
lv->widget.resize = listview_resize;
lv->widget.draw = listview_draw;
lv->widget.draw = _listview_draw;
lv->widget.clicked = listview_clicked;
lv->widget.motion_notify = listview_motion_notify;
lv->widget.get_desired_height = listview_get_desired_height;
@ -400,6 +531,7 @@ listview *listview_create ( const char *name, listview_update_callback cb, void
listview_set_show_scrollbar ( lv, rofi_theme_get_boolean ( WIDGET ( lv ), "scrollbar", FALSE ) );
lv->cycle = rofi_theme_get_boolean ( WIDGET ( lv ), "cycle", config.cycle );
lv->type = rofi_theme_get_boolean ( WIDGET (lv) , "barview", FALSE );
return lv;
}
@ -419,6 +551,7 @@ static void listview_nav_up_int ( listview *lv )
lv->selected = lv->req_elements;
}
lv->selected--;
lv->direction = RIGHT_TO_LEFT;
widget_queue_redraw ( WIDGET ( lv ) );
}
static void listview_nav_down_int ( listview *lv )
@ -430,7 +563,7 @@ static void listview_nav_down_int ( listview *lv )
return;
}
lv->selected = lv->selected < lv->req_elements - 1 ? MIN ( lv->req_elements - 1, lv->selected + 1 ) : 0;
lv->direction = LEFT_TO_RIGHT;
widget_queue_redraw ( WIDGET ( lv ) );
}
@ -464,6 +597,10 @@ void listview_nav_left ( listview *lv )
if ( lv == NULL ) {
return;
}
if ( lv->type == BARVIEW ){
listview_nav_up_int(lv);
return;
}
if ( lv->selected >= lv->max_rows ) {
lv->selected -= lv->max_rows;
widget_queue_redraw ( WIDGET ( lv ) );
@ -474,6 +611,10 @@ void listview_nav_right ( listview *lv )
if ( lv == NULL ) {
return;
}
if ( lv->type == BARVIEW ){
listview_nav_down_int(lv);
return;
}
if ( ( lv->selected + lv->max_rows ) < lv->req_elements ) {
lv->selected += lv->max_rows;
widget_queue_redraw ( WIDGET ( lv ) );
@ -562,6 +703,9 @@ static int listview_get_desired_height ( widget *wid )
h = MIN ( lv->menu_lines, lv->max_displayed_lines );
}
}
if ( lv->type == BARVIEW ){
h = MIN ( h, 1 );
}
if ( h == 0 ) {
if ( lv->dynamic && !lv->fixed_num_lines ) {
// Hide widget fully.