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libsysprof-gtk: start on interactive drag selections

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This commit is contained in:
Christian Hergert
2023-06-30 13:59:30 -07:00
parent 508d1abbb6
commit 2604f143c4
2 changed files with 119 additions and 17 deletions
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115
src/libsysprof-gtk/sysprof-tracks-view.c
View File

@ -36,6 +36,13 @@ struct _SysprofTracksView
double motion_x;
double motion_y;
double drag_start_x;
double drag_start_y;
double drag_offset_x;
double drag_offset_y;
guint in_drag_selection : 1;
};
enum {
@ -92,13 +99,65 @@ sysprof_tracks_view_motion_cb (SysprofTracksView *self,
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
sysprof_tracks_view_drag_begin_cb (SysprofTracksView *self,
double start_x,
double start_y,
GtkGestureDrag *drag)
{
g_assert (SYSPROF_IS_TRACKS_VIEW (self));
g_assert (GTK_IS_GESTURE_DRAG (drag));
self->drag_start_x = start_x;
self->drag_start_y = start_y;
self->drag_offset_x = 0;
self->drag_offset_y = 0;
self->in_drag_selection = TRUE;
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
sysprof_tracks_view_drag_end_cb (SysprofTracksView *self,
double offset_x,
double offset_y,
GtkGestureDrag *drag)
{
g_assert (SYSPROF_IS_TRACKS_VIEW (self));
g_assert (GTK_IS_GESTURE_DRAG (drag));
self->drag_offset_x = offset_x,
self->drag_offset_y = offset_y;
self->in_drag_selection = FALSE;
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
sysprof_tracks_view_drag_update_cb (SysprofTracksView *self,
double offset_x,
double offset_y,
GtkGestureDrag *drag)
{
g_assert (SYSPROF_IS_TRACKS_VIEW (self));
g_assert (GTK_IS_GESTURE_DRAG (drag));
self->drag_offset_x = offset_x,
self->drag_offset_y = offset_y;
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
sysprof_tracks_view_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
SysprofTracksView *self = (SysprofTracksView *)widget;
GdkRGBA shadow_color;
GdkRGBA line_color;
GdkRGBA color;
double x, y;
g_assert (SYSPROF_IS_TRACKS_VIEW (self));
@ -109,25 +168,57 @@ sysprof_tracks_view_snapshot (GtkWidget *widget,
if (self->motion_x == -1 && self->motion_y == -1)
return;
gtk_widget_translate_coordinates (GTK_WIDGET (self->list_view),
GTK_WIDGET (self),
self->motion_x, 0,
&x, &y);
if (x < gtk_widget_get_width (self->top_left))
if (self->motion_x < gtk_widget_get_width (self->top_left))
return;
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
{
GtkStyleContext *style_context = gtk_widget_get_style_context (GTK_WIDGET (self));
gtk_style_context_get_color (style_context, &color);
color.alpha *= .5;
shadow_color = color;
shadow_color.alpha *= .1;
line_color = color;
line_color.alpha *= .5;
}
G_GNUC_END_IGNORE_DEPRECATIONS
if (self->in_drag_selection && self->drag_offset_x != .0)
{
graphene_rect_t area;
graphene_rect_t selection;
area = GRAPHENE_RECT_INIT (gtk_widget_get_width (self->top_left),
0,
gtk_widget_get_width (GTK_WIDGET (self)) - gtk_widget_get_width (self->top_left),
gtk_widget_get_height (GTK_WIDGET (self)));
selection = GRAPHENE_RECT_INIT (self->drag_start_x,
0,
self->drag_offset_x,
gtk_widget_get_height (GTK_WIDGET (self)));
graphene_rect_normalize (&selection);
graphene_rect_intersection (&area, &selection, &selection);
gtk_snapshot_append_color (snapshot,
&shadow_color,
&GRAPHENE_RECT_INIT (area.origin.x,
area.origin.y,
selection.origin.x - area.origin.x,
area.size.height));
gtk_snapshot_append_color (snapshot,
&shadow_color,
&GRAPHENE_RECT_INIT (selection.origin.x + selection.size.width,
area.origin.y,
(area.origin.x + area.size.width) - (selection.origin.x + selection.size.width),
area.size.height));
}
gtk_snapshot_append_color (snapshot,
&color,
&GRAPHENE_RECT_INIT (x, 0, 1,
&line_color,
&GRAPHENE_RECT_INIT (self->motion_x, 0, 1,
gtk_widget_get_height (GTK_WIDGET (self))));
}
@ -215,6 +306,10 @@ sysprof_tracks_view_class_init (SysprofTracksViewClass *klass)
gtk_widget_class_bind_template_callback (widget_class, sysprof_tracks_view_motion_leave_cb);
gtk_widget_class_bind_template_callback (widget_class, sysprof_tracks_view_motion_cb);
gtk_widget_class_bind_template_callback (widget_class, sysprof_tracks_view_drag_begin_cb);
gtk_widget_class_bind_template_callback (widget_class, sysprof_tracks_view_drag_end_cb);
gtk_widget_class_bind_template_callback (widget_class, sysprof_tracks_view_drag_update_cb);
g_type_ensure (SYSPROF_TYPE_TIME_RULER);
g_type_ensure (SYSPROF_TYPE_TRACK_VIEW);
}

21
src/libsysprof-gtk/sysprof-tracks-view.ui
View File

@ -1,6 +1,20 @@
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<template class="SysprofTracksView" parent="GtkWidget">
<child>
<object class="GtkEventControllerMotion" id="motion">
<signal name="enter" handler="sysprof_tracks_view_motion_enter_cb" swapped="true"/>
<signal name="leave" handler="sysprof_tracks_view_motion_leave_cb" swapped="true"/>
<signal name="motion" handler="sysprof_tracks_view_motion_cb" swapped="true"/>
</object>
</child>
<child>
<object class="GtkGestureDrag" id="drag">
<signal name="drag-begin" handler="sysprof_tracks_view_drag_begin_cb" swapped="true"/>
<signal name="drag-end" handler="sysprof_tracks_view_drag_end_cb" swapped="true"/>
<signal name="drag-update" handler="sysprof_tracks_view_drag_update_cb" swapped="true"/>
</object>
</child>
<child>
<object class="GtkBox">
<property name="orientation">vertical</property>
@ -28,13 +42,6 @@
<property name="vexpand">true</property>
<child>
<object class="GtkListView" id="list_view">
<child>
<object class="GtkEventControllerMotion" id="motion">
<signal name="enter" handler="sysprof_tracks_view_motion_enter_cb" swapped="true"/>
<signal name="leave" handler="sysprof_tracks_view_motion_leave_cb" swapped="true"/>
<signal name="motion" handler="sysprof_tracks_view_motion_cb" swapped="true"/>
</object>
</child>
<property name="factory">
<object class="GtkBuilderListItemFactory">
<property name="bytes"><![CDATA[