static void listview_resize ( widget *wid, short w, short h )
{
listview *lv = (listview *) wid;
lv->widget.w = MAX ( 0, w );
lv->widget.h = MAX ( 0, h );
int height = lv->widget.h - widget_padding_get_padding_height ( WIDGET ( lv ) );
int spacing_vert = distance_get_pixel ( lv->spacing, ORIENTATION_VERTICAL );
lv->max_rows = ( spacing_vert + height ) / ( lv->element_height + spacing_vert );
lv->max_elements = lv->max_rows * lv->menu_columns;
if ( lv->scrollbar->widget.index == 0 ) {
widget_move ( WIDGET ( lv->scrollbar ),
widget_padding_get_left ( WIDGET ( lv ) ),
widget_padding_get_top ( WIDGET ( lv ) ) );
}
else {
widget_move ( WIDGET ( lv->scrollbar ),
lv->widget.w - widget_padding_get_right ( WIDGET ( lv ) ) - widget_get_width ( WIDGET ( lv->scrollbar ) ),
widget_padding_get_top ( WIDGET ( lv ) ) );
}
widget_resize ( WIDGET ( lv->scrollbar ), widget_get_width ( WIDGET ( lv->scrollbar ) ), height );
listview_recompute_elements ( lv );
widget_queue_redraw ( wid );
}
int widget_padding_get_padding_height ( const widget *wid )
{
int height = 0;
height += widget_padding_get_top ( wid );
height += widget_padding_get_bottom ( wid );
return height;
}
int widget_padding_get_remaining_height ( const widget *wid )
{
int height = wid->h;
height -= widget_padding_get_top ( wid );
height -= widget_padding_get_bottom ( wid );
return height;
}
/**
* 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;
unsigned int wh = widget_padding_get_remaining_height ( wid );
// Calculate position and size.
unsigned int r = ( sb->length * wh ) / ( (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, wh - handle );
// Never go out of bar.
height = MAX ( 2, height );
// Cap length;
rofi_theme_get_color ( WIDGET ( sb ), "handle-color", draw );
cairo_rectangle ( draw,
widget_padding_get_left ( wid ),
widget_padding_get_top ( wid ) + y,
widget_padding_get_remaining_width ( wid ),
height );
cairo_fill ( draw );
}
static void listview_draw ( widget *wid, cairo_t *draw )
{
unsigned int offset = 0;
listview *lv = (listview *) wid;
if ( lv->scroll_type == LISTVIEW_SCROLL_CONTINIOUS ) {
offset = scroll_continious ( lv );
}
else {
offset = scroll_per_page ( lv );
}
// Set these all together to make sure they update consistently.
scrollbar_set_max_value ( lv->scrollbar, lv->req_elements );
scrollbar_set_handle_length ( lv->scrollbar, lv->cur_columns * lv->max_rows );
if ( lv->reverse ) {
scrollbar_set_handle ( lv->scrollbar, lv->req_elements - lv->selected - 1 );
}
else {
scrollbar_set_handle ( lv->scrollbar, lv->selected );
}
lv->last_offset = offset;
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 top_offset = widget_padding_get_top ( wid );
if ( lv->scrollbar->widget.index == 0 ) {
left_offset += spacing_hori + lv->scrollbar->widget.w;
}
if ( lv->cur_elements > 0 && lv->max_rows > 0 ) {
// Set new x/y possition.
unsigned int max = MIN ( lv->cur_elements, lv->req_elements - offset );
if ( lv->rchanged ) {
unsigned int width = lv->widget.w - spacing_hori * ( lv->cur_columns - 1 );
width -= widget_padding_get_padding_width ( wid );
if ( widget_enabled ( WIDGET ( lv->scrollbar ) ) ) {
width -= spacing_hori;
width -= widget_get_width ( WIDGET ( lv->scrollbar ) );
}
unsigned int element_width = ( width ) / lv->cur_columns;
for ( unsigned int i = 0; i < max; i++ ) {
unsigned int ex = left_offset + ( ( i ) / lv->max_rows ) * ( element_width + spacing_hori );
if ( lv->reverse ) {
unsigned int ey = wid->h - ( widget_padding_get_bottom ( wid ) + ( ( i ) % lv->max_rows ) * ( lv->element_height + spacing_vert ) ) - lv->element_height;
textbox_moveresize ( lv->boxes[i], ex, ey, element_width, lv->element_height );
}
else {
unsigned int ey = top_offset + ( ( i ) % lv->max_rows ) * ( lv->element_height + spacing_vert );
textbox_moveresize ( lv->boxes[i], ex, ey, element_width, lv->element_height );
}
update_element ( lv, i, i + offset, TRUE );
widget_draw ( WIDGET ( lv->boxes[i] ), draw );
}
lv->rchanged = FALSE;
}
else {
for ( unsigned int i = 0; i < max; i++ ) {
update_element ( lv, i, i + offset, FALSE );
widget_draw ( WIDGET ( lv->boxes[i] ), draw );
}
}
}
widget_draw ( WIDGET ( lv->scrollbar ), draw );
}
static void hori_calculate_size ( box *b )
{
int spacing = distance_get_pixel ( b->spacing, ROFI_ORIENTATION_HORIZONTAL );
int expanding_widgets = 0;
int active_widgets = 0;
int rem_width = widget_padding_get_remaining_width ( WIDGET ( b ) );
int rem_height = widget_padding_get_remaining_height ( WIDGET ( b ) );
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( child->enabled && child->expand == FALSE ) {
widget_resize ( child,
widget_get_desired_width ( child ), //child->w,
rem_height );
}
}
b->max_size = 0;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( !child->enabled ) {
continue;
}
active_widgets++;
if ( child->expand == TRUE ) {
expanding_widgets++;
continue;
}
// Size used by fixed width widgets.
if ( child->h > 0 ) {
b->max_size += child->w;
}
}
b->max_size += MAX ( 0, ( ( active_widgets - 1 ) * spacing ) );
if ( b->max_size > ( rem_width ) ) {
b->max_size = rem_width;
g_debug ( "Widgets to large (width) for box: %d %d", b->max_size, b->widget.w );
return;
}
if ( active_widgets > 0 ) {
int left = widget_padding_get_left ( WIDGET ( b ) );
double rem = rem_width - b->max_size;
int index = 0;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( child->enabled == FALSE ) {
continue;
}
if ( child->expand == TRUE ) {
// Re-calculate to avoid round issues leaving one pixel left.
int expanding_widgets_size = ( rem ) / ( expanding_widgets - index );
widget_move ( child, left, widget_padding_get_top ( WIDGET ( b ) ) );
left += expanding_widgets_size;
widget_resize ( child, expanding_widgets_size, rem_height );
left += spacing;
rem -= expanding_widgets_size;
index++;
}
else {
widget_move ( child, left, widget_padding_get_top ( WIDGET ( b ) ) );
left += widget_get_width ( child );
left += spacing;
}
}
}
b->max_size += widget_padding_get_padding_width ( WIDGET ( b ) );
}
static void vert_calculate_size ( box *b )
{
int spacing = distance_get_pixel ( b->spacing, ROFI_ORIENTATION_VERTICAL );
int expanding_widgets = 0;
int active_widgets = 0;
int rem_width = widget_padding_get_remaining_width ( WIDGET ( b ) );
int rem_height = widget_padding_get_remaining_height ( WIDGET ( b ) );
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( child->enabled && child->expand == FALSE ) {
widget_resize ( child, rem_width, widget_get_desired_height ( child ) );
}
}
b->max_size = 0;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( !child->enabled ) {
continue;
}
active_widgets++;
if ( child->expand == TRUE ) {
expanding_widgets++;
continue;
}
if ( child->h > 0 ) {
b->max_size += child->h;
}
}
if ( active_widgets > 0 ) {
b->max_size += ( active_widgets - 1 ) * spacing;
}
if ( b->max_size > rem_height ) {
b->max_size = rem_height;
g_debug ( "Widgets to large (height) for box: %d %d", b->max_size, b->widget.h );
return;
}
if ( active_widgets > 0 ) {
int top = widget_padding_get_top ( WIDGET ( b ) );
double rem = rem_height - b->max_size;
int index = 0;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( child->enabled == FALSE ) {
continue;
}
if ( child->expand == TRUE ) {
// Re-calculate to avoid round issues leaving one pixel left.
int expanding_widgets_size = ( rem ) / ( expanding_widgets - index );
widget_move ( child, widget_padding_get_left ( WIDGET ( b ) ), top );
top += expanding_widgets_size;
widget_resize ( child, rem_width, expanding_widgets_size );
top += spacing;
rem -= expanding_widgets_size;
index++;
}
else {
widget_move ( child, widget_padding_get_left ( WIDGET ( b ) ), top );
top += widget_get_height ( child );
top += spacing;
}
}
}
b->max_size += widget_padding_get_padding_height ( WIDGET ( b ) );
}
static void texbox_update ( textbox *tb )
{
if ( tb->update ) {
unsigned int offset = ( tb->flags & TB_INDICATOR ) ? DOT_OFFSET : 0;
if ( tb->main_surface ) {
cairo_destroy ( tb->main_draw );
cairo_surface_destroy ( tb->main_surface );
tb->main_draw = NULL;
tb->main_surface = NULL;
}
tb->main_surface = cairo_image_surface_create ( CAIRO_FORMAT_ARGB32, tb->widget.w, tb->widget.h );
tb->main_draw = cairo_create ( tb->main_surface );
cairo_set_operator ( tb->main_draw, CAIRO_OPERATOR_OVER );
pango_cairo_update_layout ( tb->main_draw, tb->layout );
int font_height = textbox_get_font_height ( tb );
int cursor_x = 0;
int cursor_y = 0;
int cursor_width = 2; //MAX ( 2, font_height / 10 );
int cursor_height = font_height;
if ( tb->changed ) {
__textbox_update_pango_text ( tb );
}
if ( tb->flags & TB_EDITABLE ) {
// We want to place the cursor based on the text shown.
const char *text = pango_layout_get_text ( tb->layout );
// Clamp the position, should not be needed, but we are paranoid.
int cursor_offset = MIN ( tb->cursor, g_utf8_strlen ( text, -1 ) );
PangoRectangle pos;
// convert to byte location.
char *offset = g_utf8_offset_to_pointer ( text, cursor_offset );
pango_layout_get_cursor_pos ( tb->layout, offset - text, &pos, NULL );
cursor_x = pos.x / PANGO_SCALE;
cursor_y = pos.y / PANGO_SCALE;
cursor_height = pos.height / PANGO_SCALE;
}
// Skip the side MARGIN on the X axis.
int x = widget_padding_get_left ( WIDGET ( tb ) ) + offset;
int y = 0;
if ( tb->flags & TB_RIGHT ) {
int line_width = 0;
// Get actual width.
pango_layout_get_pixel_size ( tb->layout, &line_width, NULL );
x = ( tb->widget.w - line_width - widget_padding_get_right ( WIDGET ( tb ) ) - offset );
}
else if ( tb->flags & TB_CENTER ) {
int tw = textbox_get_font_width ( tb );
x = ( ( tb->widget.w - tw - widget_padding_get_padding_width ( WIDGET ( tb ) ) - offset ) ) / 2;
}
y = widget_padding_get_top ( WIDGET ( tb ) ) + ( pango_font_metrics_get_ascent ( p_metrics ) - pango_layout_get_baseline ( tb->layout ) ) / PANGO_SCALE;
rofi_theme_get_color ( WIDGET ( tb ), "foreground", tb->main_draw );
// Text
rofi_theme_get_color ( WIDGET ( tb ), "text", tb->main_draw );
// draw the cursor
if ( tb->flags & TB_EDITABLE && tb->blink ) {
cairo_rectangle ( tb->main_draw, x + cursor_x, y + cursor_y, cursor_width, cursor_height );
cairo_fill ( tb->main_draw );
}
// Set ARGB
// We need to set over, otherwise subpixel hinting wont work.
//cairo_set_operator ( tb->main_draw, CAIRO_OPERATOR_OVER );
cairo_move_to ( tb->main_draw, x, y );
pango_cairo_show_layout ( tb->main_draw, tb->layout );
if ( ( tb->flags & TB_INDICATOR ) == TB_INDICATOR && ( tb->tbft & ( SELECTED ) ) ) {
cairo_arc ( tb->main_draw, DOT_OFFSET / 2.0, tb->widget.h / 2.0, 2.0, 0, 2.0 * M_PI );
cairo_fill ( tb->main_draw );
}
tb->update = FALSE;
}
}
