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draw the navigation popup using Cairo, just as we do it in the core now. 

2008-08-22  Sven Neumann  <sven@gimp.org>

	* libgimpwidgets/gimpscrolledpreview.[ch]: draw the navigation
	popup using Cairo, just as we do it in the core now.


svn path=/trunk/; revision=26718
This commit is contained in:
Sven Neumann 2008-08-22 21:30:33 +00:00 committed by Sven Neumann
parent 0b8e67f2b8
commit 943c4dba85
3 changed files with 41 additions and 48 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
2008-08-22 Sven Neumann <sven@gimp.org>
* libgimpwidgets/gimpscrolledpreview.[ch]: draw the navigation
popup using Cairo, just as we do it in the core now.
2008-08-22 Sven Neumann <sven@gimp.org>
* app/widgets/gimpnavigationview.c: indicate the viewport by

82
libgimpwidgets/gimpscrolledpreview.c
View File

@ -33,7 +33,6 @@
#define POPUP_SIZE 100
#define PEN_WIDTH 3
typedef struct
@ -76,16 +75,13 @@ static gboolean gimp_scrolled_preview_nav_button_press (GtkWidget
GdkEventButton *event,
GimpScrolledPreview *preview);
static void gimp_scrolled_preview_nav_popup_realize (GtkWidget *widget,
GimpScrolledPreview *preview);
static void gimp_scrolled_preview_nav_popup_unrealize (GtkWidget *widget,
GimpScrolledPreview *preview);
static gboolean gimp_scrolled_preview_nav_popup_event (GtkWidget *widget,
GdkEvent *event,
GimpScrolledPreview *preview);
static gboolean gimp_scrolled_preview_nav_popup_expose (GtkWidget *widget,
GdkEventExpose *event,
GimpScrolledPreview *preview);
static void gimp_scrolled_preview_set_cursor (GimpPreview *preview);
@ -595,12 +591,6 @@ gimp_scrolled_preview_nav_button_press (GtkWidget *widget,
gtk_container_add (GTK_CONTAINER (inner), area);
g_signal_connect (area, "realize",
G_CALLBACK (gimp_scrolled_preview_nav_popup_realize),
preview);
g_signal_connect (area, "unrealize",
G_CALLBACK (gimp_scrolled_preview_nav_popup_unrealize),
preview);
g_signal_connect (area, "event",
G_CALLBACK (gimp_scrolled_preview_nav_popup_event),
preview);
@ -649,32 +639,6 @@ gimp_scrolled_preview_nav_button_press (GtkWidget *widget,
return TRUE;
}
static void
gimp_scrolled_preview_nav_popup_realize (GtkWidget *widget,
GimpScrolledPreview *preview)
{
if (! preview->nav_gc)
{
preview->nav_gc = gdk_gc_new (widget->window);
gdk_gc_set_function (preview->nav_gc, GDK_INVERT);
gdk_gc_set_line_attributes (preview->nav_gc,
PEN_WIDTH,
GDK_LINE_SOLID, GDK_CAP_BUTT, GDK_JOIN_ROUND);
}
}
static void
gimp_scrolled_preview_nav_popup_unrealize (GtkWidget *widget,
GimpScrolledPreview *preview)
{
if (preview->nav_gc)
{
g_object_unref (preview->nav_gc);
preview->nav_gc = NULL;
}
}
static gboolean
gimp_scrolled_preview_nav_popup_event (GtkWidget *widget,
GdkEvent *event,
@ -744,10 +708,12 @@ gimp_scrolled_preview_nav_popup_expose (GtkWidget *widget,
GimpScrolledPreview *preview)
{
GtkAdjustment *adj;
GdkColor *color;
cairo_t *cr;
gdouble x, y;
gdouble w, h;
adj = gtk_range_get_adjustment (GTK_RANGE (preview->hscr));
adj = gtk_range_get_adjustment (GTK_RANGE (preview->hscr));
x = adj->value / (adj->upper - adj->lower);
w = adj->page_size / (adj->upper - adj->lower);
@ -760,16 +726,38 @@ gimp_scrolled_preview_nav_popup_expose (GtkWidget *widget,
if (w >= 1.0 && h >= 1.0)
return FALSE;
gdk_gc_set_clip_rectangle (preview->nav_gc, &event->area);
x = floor (x * (gdouble) widget->allocation.width);
y = floor (y * (gdouble) widget->allocation.height);
w = MAX (1, ceil (w * (gdouble) widget->allocation.width));
h = MAX (1, ceil (h * (gdouble) widget->allocation.height));
gdk_draw_rectangle (widget->window, preview->nav_gc,
FALSE,
x * (gdouble) widget->allocation.width + PEN_WIDTH / 2,
y * (gdouble) widget->allocation.height + PEN_WIDTH / 2,
MAX (1,
ceil (w * widget->allocation.width) - PEN_WIDTH),
MAX (1,
ceil (h * widget->allocation.height) - PEN_WIDTH));
cr = gdk_cairo_create (widget->window);
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
cairo_rectangle (cr,
0, 0, widget->allocation.width, widget->allocation.height);
cairo_rectangle (cr, x, y, w, h);
color = &widget->style->fg[widget->state];
cairo_set_source_rgba (cr,
color->red / 65535.,
color->green / 65535.,
color->blue / 65535., 0.5);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_fill (cr);
cairo_rectangle (cr, x, y, w, h);
gdk_cairo_set_source_color (cr, &widget->style->bg[widget->state]);
cairo_set_line_width (cr, 2);
cairo_stroke (cr);
cairo_destroy (cr);
return FALSE;
}

2
libgimpwidgets/gimpscrolledpreview.h
View File

@ -50,7 +50,7 @@ struct _GimpScrolledPreview
GtkWidget *nav_icon;
GtkWidget *nav_popup;
GdkCursor *cursor_move;
GdkGC *nav_gc;
GdkGC *nav_gc; /* unused */
/*< private >*/
gpointer priv;