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More Area scrolling work.

This commit is contained in:
Pietro Gagliardi 2015-09-04 21:50:49 -04:00
parent 00e005b71a
commit decc470e69
1 changed files with 38 additions and 2 deletions
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40
gtkarea/area.c
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@ -1,6 +1,9 @@
// 4 september 2015
#include "area.h"
// TODOs
// - why are we getting the overrun drawing when there's no scroll?
struct areaPrivate {
uiArea *a;
uiAreaHandler *ah;
@ -108,7 +111,40 @@ static void areaWidget_size_allocate(GtkWidget *w, GtkAllocation *allocation)
updateScroll(areaWidget(w));
}
// TODO draw
static gboolean areaWidget_draw(GtkWidget *w, cairo_t *cr)
{
areaWidget *a = areaWidget(w);
struct areaPrivate *ap = a->priv;
char *msg;
PangoLayout *layout;
int ypos;
int height;
ypos = 5;
msg = g_strdup_printf("client width %d height %d",
ap->clientWidth, ap->clientHeight);
layout = gtk_widget_create_pango_layout(GTK_WIDGET(a), msg);
cairo_move_to(cr, 5, ypos);
pango_cairo_show_layout(cr, layout);
pango_layout_get_pixel_size(layout, NULL, &height);
ypos += height;
g_object_unref(layout);
g_free(msg);
msg = g_strdup_printf("hscroll %d vscroll %d",
(int) gtk_adjustment_get_value(ap->ha),
(int) gtk_adjustment_get_value(ap->va));
layout = gtk_widget_create_pango_layout(GTK_WIDGET(a), msg);
cairo_move_to(cr, 5, ypos);
pango_cairo_show_layout(cr, layout);
pango_layout_get_pixel_size(layout, NULL, &height);
ypos += height;
g_object_unref(layout);
g_free(msg);
return FALSE;
}
// TODO preferred height/width
@ -202,7 +238,7 @@ static void areaWidget_class_init(areaWidgetClass *class)
G_OBJECT_CLASS(class)->get_property = areaWidget_get_property;
GTK_WIDGET_CLASS(class)->size_allocate = areaWidget_size_allocate;
// GTK_WIDGET_CLASS(class)->draw = areaWidget_draw;
GTK_WIDGET_CLASS(class)->draw = areaWidget_draw;
// GTK_WIDGET_CLASS(class)->get_preferred_height = areaWidget_get_preferred_height;
// GTK_WIDGET_CLASS(class)->get_preferred_width = areaWidget_get_preferred_width;
// GTK_WIDGET_CLASS(class)->button_press_event = areaWidget_button_press_event;