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libsysprof-ui: fix drawing of selections

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This commit is contained in:
Christian Hergert
2022-04-01 14:20:12 -07:00
parent 8a73f72f97
commit 6ccf961829
1 changed files with 23 additions and 9 deletions
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32
src/libsysprof-ui/sysprof-visualizers-frame.c
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@ -66,7 +66,8 @@ typedef struct
GtkListBox *list;
GtkStyleContext *style_context;
GtkSnapshot *snapshot;
GtkAllocation alloc;
int width;
int height;
gint64 begin_time;
gint64 duration;
} SelectionDraw;
@ -121,10 +122,10 @@ draw_selection_cb (SysprofSelection *selection,
x = (range_begin - draw->begin_time) / (gdouble)draw->duration;
x2 = (range_end - draw->begin_time) / (gdouble)draw->duration;
area.x = x * draw->alloc.width;
area.width = (x2 * draw->alloc.width) - area.x;
area.x = x * draw->width;
area.width = (x2 * draw->width) - area.x;
area.y = 0;
area.height = draw->alloc.height;
area.height = draw->height;
if (area.width < 0)
{
@ -141,30 +142,43 @@ sysprof_visualizers_frame_snapshot (GtkWidget *widget,
{
SysprofVisualizersFrame *self = (SysprofVisualizersFrame *)widget;
SelectionDraw draw;
GtkAllocation alloc;
g_assert (SYSPROF_IS_VISUALIZERS_FRAME (self));
g_assert (GTK_IS_SNAPSHOT (snapshot));
GTK_WIDGET_CLASS (sysprof_visualizers_frame_parent_class)->snapshot (widget, snapshot);
draw.duration = sysprof_visualizer_get_duration (SYSPROF_VISUALIZER (self->ticks));
if (draw.duration == 0)
return;
draw.style_context = gtk_widget_get_style_context (GTK_WIDGET (self->visualizers));
draw.list = self->visualizers;
draw.snapshot = snapshot;
draw.begin_time = self->begin_time;
draw.duration = sysprof_visualizer_get_duration (SYSPROF_VISUALIZER (self->ticks));
if (draw.duration == 0)
return;
gtk_widget_get_allocation (GTK_WIDGET (self->visualizers), &draw.alloc);
gtk_widget_get_allocation (GTK_WIDGET (self->visualizers), &alloc);
draw.width = alloc.width;
draw.height = alloc.height;
if (sysprof_selection_get_has_selection (self->selection) || self->button_pressed)
{
double x, y;
gtk_snapshot_save (snapshot);
gtk_widget_translate_coordinates (GTK_WIDGET (self->visualizers),
GTK_WIDGET (self),
0, 0, &x, &y);
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (x, y));
gtk_style_context_add_class (draw.style_context, "selection");
sysprof_selection_foreach (self->selection, draw_selection_cb, &draw);
if (self->button_pressed)
draw_selection_cb (self->selection, self->drag_begin_at, self->drag_selection_at, &draw);
gtk_style_context_remove_class (draw.style_context, "selection");
gtk_snapshot_restore (snapshot);
}
}