mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-09-18 21:10:00 +00:00
082ba6d7c8
It turns out that the old behavior of GTK_ALIGN_BASELINE was actually used in libadwaita, so bring it back, and introduce a new GtkAlign value for the new behavior.
449 lines
13 KiB
C
449 lines
13 KiB
C
#include <gtk/gtk.h>
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#define BASELINE_TYPE_WIDGET (baseline_widget_get_type ())
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G_DECLARE_FINAL_TYPE (BaselineWidget, baseline_widget, BASELINE, WIDGET, GtkWidget)
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enum
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{
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PROP_ABOVE = 1,
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PROP_BELOW,
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PROP_ACROSS
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};
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struct _BaselineWidget
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{
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GtkWidget parent_instance;
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int above, below, across;
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};
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struct _BaselineWidgetClass
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{
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GtkWidgetClass parent_class;
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};
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G_DEFINE_TYPE (BaselineWidget, baseline_widget, GTK_TYPE_WIDGET)
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static void
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baseline_widget_init (BaselineWidget *self)
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{
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}
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static void
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baseline_widget_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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BaselineWidget *self = BASELINE_WIDGET (object);
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switch (prop_id)
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{
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case PROP_ABOVE:
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self->above = g_value_get_int (value);
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gtk_widget_queue_resize (GTK_WIDGET (object));
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break;
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case PROP_BELOW:
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self->below = g_value_get_int (value);
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gtk_widget_queue_resize (GTK_WIDGET (object));
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break;
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case PROP_ACROSS:
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self->across = g_value_get_int (value);
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gtk_widget_queue_resize (GTK_WIDGET (object));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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baseline_widget_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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BaselineWidget *self = BASELINE_WIDGET (object);
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switch (prop_id)
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{
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case PROP_ABOVE:
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g_value_set_int (value, self->above);
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break;
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case PROP_BELOW:
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g_value_set_int (value, self->below);
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break;
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case PROP_ACROSS:
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g_value_set_int (value, self->across);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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baseline_widget_measure (GtkWidget *widget,
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GtkOrientation orientation,
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int for_size,
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int *minimum,
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int *natural,
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int *minimum_baseline,
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int *natural_baseline)
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{
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BaselineWidget *self = BASELINE_WIDGET (widget);
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if (orientation == GTK_ORIENTATION_VERTICAL)
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{
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if (self->below >= 0)
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{
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*minimum = *natural = self->above + self->below;
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*minimum_baseline = *natural_baseline = self->above;
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}
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else
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{
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*minimum = *natural = self->above;
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*minimum_baseline = *natural_baseline = -1;
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}
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}
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else
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{
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*minimum = *natural = self->across;
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*minimum_baseline = *natural_baseline = -1;
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}
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}
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static void
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baseline_widget_snapshot (GtkWidget *widget,
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GtkSnapshot *snapshot)
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{
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BaselineWidget *self = BASELINE_WIDGET (widget);
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int height, baseline;
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graphene_rect_t bounds;
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float widths[4];
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GdkRGBA colors[4];
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GskRoundedRect outline;
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height = gtk_widget_get_height (widget);
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baseline = gtk_widget_get_baseline (widget);
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gtk_snapshot_save (snapshot);
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if (baseline > -1)
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{
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int y;
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if (self->below >= 0)
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y = MAX (baseline - self->above, 0);
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else
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y = CLAMP (baseline - self->above / 2, 0, height - self->above);
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gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (0, y));
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}
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bounds.origin.x = 0;
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bounds.origin.y = 0;
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bounds.size.width = self->across;
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bounds.size.height = self->above;
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if (self->below >= 0)
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gtk_snapshot_append_color (snapshot, &(GdkRGBA){1, 1, 0, 0.2}, &bounds);
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else
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gtk_snapshot_append_color (snapshot, &(GdkRGBA){0, 1, 0, 0.2}, &bounds);
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outline = GSK_ROUNDED_RECT_INIT (0, 0, self->across, self->above);
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for (int i = 0; i < 4; i++)
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{
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widths[i] = 1.;
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gdk_rgba_parse (&colors[i], "black");
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}
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gtk_snapshot_append_border (snapshot, &outline, widths, colors);
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gtk_snapshot_restore (snapshot);
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if (self->below >= 0)
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{
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gtk_snapshot_save (snapshot);
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if (baseline > -1)
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gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (0, baseline));
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else
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gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (0, self->above));
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bounds.origin.x = 0;
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bounds.origin.y = 0;
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bounds.size.width = self->across;
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bounds.size.height = self->below;
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gtk_snapshot_append_color (snapshot, &(GdkRGBA){0, 0, 1, 0.2}, &bounds);
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outline = GSK_ROUNDED_RECT_INIT (0, 0, self->across, self->below);
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for (int i = 0; i < 4; i++)
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{
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widths[i] = 1.;
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gdk_rgba_parse (&colors[i], "black");
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}
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gtk_snapshot_append_border (snapshot, &outline, widths, colors);
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gtk_snapshot_restore (snapshot);
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}
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}
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static void
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baseline_widget_class_init (BaselineWidgetClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
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object_class->set_property = baseline_widget_set_property;
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object_class->get_property = baseline_widget_get_property;
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widget_class->snapshot = baseline_widget_snapshot;
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widget_class->measure = baseline_widget_measure;
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g_object_class_install_property (object_class, PROP_ABOVE,
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g_param_spec_int ("above", NULL, NULL, 0, G_MAXINT, 0, G_PARAM_READWRITE));
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g_object_class_install_property (object_class, PROP_BELOW,
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g_param_spec_int ("below", NULL, NULL, -1, G_MAXINT, 0, G_PARAM_READWRITE));
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g_object_class_install_property (object_class, PROP_ACROSS,
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g_param_spec_int ("across", NULL, NULL, 0, G_MAXINT, 0, G_PARAM_READWRITE));
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}
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static GtkWidget *
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baseline_widget_new (int above, int below, int across)
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{
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return g_object_new (BASELINE_TYPE_WIDGET,
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"above", above,
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"below", below,
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"across", across,
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"valign", GTK_ALIGN_BASELINE_CENTER,
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NULL);
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}
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int
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main (int argc, char *argv[])
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{
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GtkWidget *window, *header;
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GtkWidget *stack, *switcher;
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GtkWidget *box, *box1;
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GtkWidget *grid;
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GtkWidget *child;
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gtk_init ();
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window = gtk_window_new ();
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header = gtk_header_bar_new ();
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gtk_window_set_titlebar (GTK_WINDOW (window), header);
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stack = gtk_stack_new ();
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gtk_window_set_child (GTK_WINDOW (window), stack);
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switcher = gtk_stack_switcher_new ();
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gtk_stack_switcher_set_stack (GTK_STACK_SWITCHER (switcher), GTK_STACK (stack));
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gtk_header_bar_set_title_widget (GTK_HEADER_BAR (header), switcher);
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 20);
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gtk_widget_set_margin_top (box, 20);
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gtk_widget_set_margin_bottom (box, 20);
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gtk_widget_set_margin_start (box, 20);
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gtk_widget_set_margin_end (box, 20);
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gtk_widget_set_valign (box, GTK_ALIGN_BASELINE_CENTER);
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gtk_stack_add_titled (GTK_STACK (stack), box, "boxes", "Boxes");
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box1 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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gtk_widget_set_halign (box1, GTK_ALIGN_FILL);
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gtk_widget_set_valign (box1, GTK_ALIGN_BASELINE_CENTER);
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gtk_widget_set_hexpand (box1, TRUE);
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child = baseline_widget_new (20, 10, 20);
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gtk_box_append (GTK_BOX (box1), child);
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child = baseline_widget_new (5, 20, 20);
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gtk_box_append (GTK_BOX (box1), child);
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child = baseline_widget_new (25, -1, 20);
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gtk_box_append (GTK_BOX (box1), child);
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child = baseline_widget_new (25, 20, 30);
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gtk_box_append (GTK_BOX (box1), child);
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gtk_box_append (GTK_BOX (box), box1);
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box1 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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gtk_widget_set_halign (box1, GTK_ALIGN_FILL);
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gtk_widget_set_valign (box1, GTK_ALIGN_BASELINE_CENTER);
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gtk_widget_set_hexpand (box1, TRUE);
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child = baseline_widget_new (10, 15, 10);
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gtk_box_append (GTK_BOX (box1), child);
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child = baseline_widget_new (80, -1, 20);
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gtk_box_append (GTK_BOX (box1), child);
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child = baseline_widget_new (60, 15, 20);
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gtk_box_append (GTK_BOX (box1), child);
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child = baseline_widget_new (5, 10, 30);
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gtk_box_append (GTK_BOX (box1), child);
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gtk_box_append (GTK_BOX (box), box1);
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 20);
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gtk_widget_set_margin_top (box, 20);
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gtk_widget_set_margin_bottom (box, 20);
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gtk_widget_set_margin_start (box, 20);
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gtk_widget_set_margin_end (box, 20);
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gtk_widget_set_valign (box, GTK_ALIGN_BASELINE_CENTER);
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grid = gtk_grid_new ();
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gtk_widget_set_valign (grid, GTK_ALIGN_BASELINE_CENTER);
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gtk_widget_set_hexpand (grid, TRUE);
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child = baseline_widget_new (20, 10, 20);
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gtk_grid_attach (GTK_GRID (grid), child, 0, 0, 1, 1);
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child = baseline_widget_new (5, 20, 20);
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gtk_grid_attach (GTK_GRID (grid), child, 1, 0, 1, 1);
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child = baseline_widget_new (25, -1, 20);
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gtk_grid_attach (GTK_GRID (grid), child, 0, 1, 1, 1);
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child = baseline_widget_new (25, 20, 30);
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gtk_grid_attach (GTK_GRID (grid), child, 1, 1, 1, 1);
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gtk_box_append (GTK_BOX (box), grid);
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grid = gtk_grid_new ();
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gtk_widget_set_valign (grid, GTK_ALIGN_BASELINE_CENTER);
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gtk_widget_set_hexpand (grid, TRUE);
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child = baseline_widget_new (10, 15, 10);
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gtk_grid_attach (GTK_GRID (grid), child, 0, 0, 1, 1);
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child = baseline_widget_new (80, -1, 20);
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gtk_grid_attach (GTK_GRID (grid), child, 1, 0, 1, 1);
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child = baseline_widget_new (60, 15, 20);
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gtk_grid_attach (GTK_GRID (grid), child, 0, 1, 1, 1);
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child = baseline_widget_new (5, 10, 30);
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gtk_grid_attach (GTK_GRID (grid), child, 1, 1, 1, 1);
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gtk_box_append (GTK_BOX (box), grid);
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gtk_stack_add_titled (GTK_STACK (stack), box, "grids", "Grids");
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 20);
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gtk_widget_set_margin_top (box, 20);
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gtk_widget_set_margin_bottom (box, 20);
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gtk_widget_set_margin_start (box, 20);
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gtk_widget_set_margin_end (box, 20);
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gtk_widget_set_valign (box, GTK_ALIGN_BASELINE_CENTER);
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child = baseline_widget_new (60, 15, 20);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_label_new ("Label");
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_entry_new ();
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gtk_editable_set_text (GTK_EDITABLE (child), "Entry");
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gtk_editable_set_width_chars (GTK_EDITABLE (child), 10);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_password_entry_new ();
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gtk_editable_set_text (GTK_EDITABLE (child), "Password");
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gtk_editable_set_width_chars (GTK_EDITABLE (child), 10);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_spin_button_new_with_range (0, 100, 1);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_spin_button_new_with_range (0, 100, 1);
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gtk_orientable_set_orientation (GTK_ORIENTABLE (child), GTK_ORIENTATION_VERTICAL);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_switch_new ();
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL, 0, 100, 1);
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gtk_widget_set_size_request (child, 100, -1);
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//gtk_scale_add_mark (GTK_SCALE (child), 50, GTK_POS_BOTTOM, "50");
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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gtk_stack_add_titled (GTK_STACK (stack), box, "controls", "Controls");
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 20);
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gtk_widget_set_margin_top (box, 20);
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gtk_widget_set_margin_bottom (box, 20);
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gtk_widget_set_margin_start (box, 20);
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gtk_widget_set_margin_end (box, 20);
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gtk_widget_set_valign (box, GTK_ALIGN_BASELINE_CENTER);
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child = baseline_widget_new (60, 15, 20);
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gtk_widget_set_hexpand (child, TRUE);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_label_new ("Label");
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gtk_widget_set_hexpand (child, TRUE);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_label_new ("Two\nlines");
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gtk_widget_set_hexpand (child, TRUE);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_label_new ("<span size='large'>Large</span>");
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gtk_widget_set_hexpand (child, TRUE);
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gtk_label_set_use_markup (GTK_LABEL (child), TRUE);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_label_new ("<span size='xx-large'>Huge</span>");
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gtk_widget_set_hexpand (child, TRUE);
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gtk_label_set_use_markup (GTK_LABEL (child), TRUE);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_label_new ("<span underline='double'>Underlined</span>");
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gtk_widget_set_hexpand (child, TRUE);
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gtk_label_set_use_markup (GTK_LABEL (child), TRUE);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_label_new ("♥️");
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gtk_widget_set_hexpand (child, TRUE);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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child = gtk_image_new_from_icon_name ("edit-copy-symbolic");
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gtk_widget_set_hexpand (child, TRUE);
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gtk_widget_set_valign (child, GTK_ALIGN_BASELINE_CENTER);
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gtk_box_append (GTK_BOX (box), child);
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gtk_stack_add_titled (GTK_STACK (stack), box, "labels", "Labels");
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gtk_window_present (GTK_WINDOW (window));
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while (g_list_model_get_n_items (gtk_window_get_toplevels ()) > 0)
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g_main_context_iteration (NULL, FALSE);
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return 0;
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}
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