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add callback to resolution changes in the postscipt load dialog to update 

2007-03-01 João S. O. Bueno Calligaris <gwidon@mpc.com.br>

        * plug-ins/common/postscript.c: add callback to resolution
        changes in the postscipt load dialog to update the image size
        in pixels.

svn path=/trunk/; revision=22035
This commit is contained in:
João S. O. Bueno Calligaris 2007-03-01 12:48:00 +00:00 committed by João Sebastião de Oliveira Bueno Calligaris
parent 39c3a4e80b
commit 4fb0b2a5bf
2 changed files with 65 additions and 14 deletions
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8
ChangeLog
View File

@ -1,4 +1,10 @@
2007-02-29 Raphaël Quinet <raphael@gimp.org> 2007-03-01 João S. O. Bueno Calligaris <gwidon@mpc.com.br>
* plug-ins/common/postscript.c: add callback to resolution
changes in the postscipt load dialog to update the image size
in pixels.
2007-03-01 Raphaël Quinet <raphael@gimp.org>
* app/tools/gimpmeasuretool.c (gimp_measure_tool_cursor_update): * app/tools/gimpmeasuretool.c (gimp_measure_tool_cursor_update):
don't suggest Shift when a new point cannot be added to point 0. don't suggest Shift when a new point cannot be added to point 0.

71
plug-ins/common/postscript.c
View File

@ -130,7 +130,7 @@ static char dversio[] = "v1.17 19-Sep-2004";
/* Load info */ /* Load info */
typedef struct typedef struct
{ {
guint resolution; /* resolution (dpi) at which to run ghostscript */ guint resolution; /* resolution (dpi) at which to run ghostscript */
guint width, height; /* desired size (ghostscript may ignore this) */ guint width, height; /* desired size (ghostscript may ignore this) */
gint use_bbox; /* 0: use width/height, 1: try to use BoundingBox */ gint use_bbox; /* 0: use width/height, 1: try to use BoundingBox */
gchar pages[STR_LENGTH]; /* Pages to load (eg.: 1,3,5-7) */ gchar pages[STR_LENGTH]; /* Pages to load (eg.: 1,3,5-7) */
@ -150,7 +150,13 @@ static PSLoadVals plvals =
1 /* dont use graphics antialiasing */ 1 /* dont use graphics antialiasing */
}; };
/* Widgets for width and height of postscript image to
* be loaded, so that they can be updated when desired resolution is
* changed
*/
GtkWidget *ps_width_spinbutton;
GtkWidget *ps_height_spinbutton;
/* Save info */ /* Save info */
typedef struct typedef struct
{ {
@ -267,11 +273,14 @@ static void dither_grey (const guchar *grey,
/* Dialog-handling */ /* Dialog-handling */
static gint32 count_ps_pages (const gchar *filename); static gint32 count_ps_pages (const gchar *filename);
static gboolean load_dialog (const gchar *filename, static gboolean load_dialog (const gchar *filename,
gboolean loadPDF); gboolean loadPDF);
static void load_pages_entry_callback (GtkWidget *widget, static void load_pages_entry_callback (GtkWidget *widget,
gpointer data); gpointer data);
static gboolean resolution_change_callback (GtkAdjustment *adjustment,
gpointer data);
typedef struct typedef struct
{ {
@ -3099,24 +3108,33 @@ load_dialog (const gchar *filename,
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0, gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Resolution:"), 0.0, 0.5, _("Resolution:"), 0.0, 0.5,
spinbutton, 1, FALSE); spinbutton, 1, FALSE);
g_signal_connect (adj, "value-changed",
G_CALLBACK (resolution_change_callback),
&plvals.resolution);
g_signal_connect (adj, "value-changed", g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update), G_CALLBACK (gimp_int_adjustment_update),
&plvals.resolution); &plvals.resolution);
spinbutton = gimp_spin_button_new (&adj, plvals.width,
1, GIMP_MAX_IMAGE_SIZE, 1, 10, 0, 1, 0);
ps_width_spinbutton = gimp_spin_button_new (&adj, plvals.width,
1, GIMP_MAX_IMAGE_SIZE,
1, 10, 0, 1, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1, gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("_Width:"), 0.0, 0.5, _("_Width:"), 0.0, 0.5,
spinbutton, 1, FALSE); ps_width_spinbutton, 1, FALSE);
g_signal_connect (adj, "value-changed", g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update), G_CALLBACK (gimp_int_adjustment_update),
&plvals.width); &plvals.width);
spinbutton = gimp_spin_button_new (&adj, plvals.height, ps_height_spinbutton = gimp_spin_button_new (&adj, plvals.height,
1, GIMP_MAX_IMAGE_SIZE, 1, 10, 0, 1, 0); 1, GIMP_MAX_IMAGE_SIZE,
1, 10, 0, 1, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 2, gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("_Height:"), 0.0, 0.5, _("_Height:"), 0.0, 0.5,
spinbutton, 1, FALSE); ps_height_spinbutton, 1, FALSE);
g_signal_connect (adj, "value-changed", g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update), G_CALLBACK (gimp_int_adjustment_update),
&plvals.height); &plvals.height);
@ -3496,3 +3514,30 @@ save_unit_toggle_update (GtkWidget *widget,
} }
} }
} }
static gboolean
resolution_change_callback (GtkAdjustment *adjustment,
gpointer data)
{
guint *old_resolution = (guint *) data;
gdouble ratio;
if (*old_resolution)
{
ratio = (gdouble) adjustment->value / *old_resolution;
}
else
{
ratio = 1;
}
gtk_spin_button_set_value (GTK_SPIN_BUTTON (ps_width_spinbutton),
GTK_SPIN_BUTTON (ps_width_spinbutton)->
adjustment->value * ratio);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (ps_height_spinbutton),
GTK_SPIN_BUTTON (ps_height_spinbutton)->
adjustment->value * ratio);
return TRUE;
}