forked from AuroraMiddleware/gtk
214 lines
6.4 KiB
C
214 lines
6.4 KiB
C
/* testframe.c
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* Copyright (C) 2007 Xan López <xan@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <gtk/gtk.h>
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#include <math.h>
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static void
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spin_hpadding_cb (GtkSpinButton *spin, gpointer user_data)
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{
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GtkWidget *frame = user_data;
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GtkCssProvider *provider;
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GtkStyleContext *context;
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gchar *data;
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GtkBorder pad;
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context = gtk_widget_get_style_context (frame);
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provider = g_object_get_data (G_OBJECT (frame), "provider");
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if (provider == NULL)
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{
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provider = gtk_css_provider_new ();
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g_object_set_data (G_OBJECT (frame), "provider", provider);
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gtk_style_context_add_provider (context,
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GTK_STYLE_PROVIDER (provider),
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GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
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}
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gtk_style_context_save (context);
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gtk_style_context_set_state (context, GTK_STATE_FLAG_NORMAL);
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gtk_style_context_get_padding (context, &pad);
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gtk_style_context_restore (context);
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data = g_strdup_printf ("frame { padding: %dpx %dpx }",
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pad.top,
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(gint)gtk_spin_button_get_value (spin));
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gtk_css_provider_load_from_data (provider, data, -1);
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g_free (data);
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gtk_widget_queue_resize (frame);
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}
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static void
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spin_vpadding_cb (GtkSpinButton *spin, gpointer user_data)
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{
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GtkWidget *frame = user_data;
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GtkCssProvider *provider;
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GtkStyleContext *context;
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gchar *data;
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GtkBorder pad;
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context = gtk_widget_get_style_context (frame);
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provider = g_object_get_data (G_OBJECT (frame), "provider");
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if (provider == NULL)
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{
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provider = gtk_css_provider_new ();
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g_object_set_data (G_OBJECT (frame), "provider", provider);
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gtk_style_context_add_provider (context,
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GTK_STYLE_PROVIDER (provider),
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GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
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}
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gtk_style_context_save (context);
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gtk_style_context_set_state (context, GTK_STATE_FLAG_NORMAL);
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gtk_style_context_get_padding (context, &pad);
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gtk_style_context_restore (context);
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data = g_strdup_printf ("frame { padding: %dpx %dpx }",
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(gint)gtk_spin_button_get_value (spin),
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pad.left);
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gtk_css_provider_load_from_data (provider, data, -1);
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g_free (data);
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gtk_widget_queue_resize (frame);
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}
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/* Function to normalize rounding errors in FP arithmetic to
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our desired limits */
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#define EPSILON 1e-10
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static gdouble
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double_normalize (gdouble n)
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{
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if (fabs (1.0 - n) < EPSILON)
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n = 1.0;
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else if (n < EPSILON)
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n = 0.0;
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return n;
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}
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static void
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spin_xalign_cb (GtkSpinButton *spin, GtkFrame *frame)
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{
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gdouble xalign;
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xalign = double_normalize (gtk_spin_button_get_value (spin));
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gtk_frame_set_label_align (frame, xalign);
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}
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static void
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draw_border_cb (GtkToggleButton *toggle_button, GtkFrame *frame)
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{
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GtkShadowType shadow_type = gtk_toggle_button_get_active (toggle_button)
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? GTK_SHADOW_IN : GTK_SHADOW_NONE;
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gtk_frame_set_shadow_type (frame, shadow_type);
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}
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static void
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quit_cb (GtkWidget *widget,
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gpointer data)
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{
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gboolean *done = data;
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*done = TRUE;
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g_main_context_wakeup (NULL);
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}
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int main (int argc, char **argv)
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{
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GtkWidget *window, *widget;
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GtkBox *vbox;
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GtkFrame *frame;
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GtkGrid *grid;
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gfloat xalign;
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gboolean draw_border;
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gboolean done = FALSE;
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gtk_init ();
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window = gtk_window_new ();
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gtk_window_set_default_size (GTK_WINDOW (window), 300, 300);
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g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
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vbox = GTK_BOX (gtk_box_new (GTK_ORIENTATION_VERTICAL, 5));
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g_object_set (vbox, "margin", 12, NULL);
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gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (vbox));
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frame = GTK_FRAME (gtk_frame_new ("Test GtkFrame"));
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gtk_widget_set_vexpand (GTK_WIDGET (frame), TRUE);
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gtk_container_add (GTK_CONTAINER (vbox), GTK_WIDGET (frame));
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widget = gtk_button_new_with_label ("Hello!");
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gtk_container_add (GTK_CONTAINER (frame), widget);
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grid = GTK_GRID (gtk_grid_new ());
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gtk_grid_set_row_spacing (grid, 12);
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gtk_grid_set_column_spacing (grid, 6);
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gtk_container_add (GTK_CONTAINER (vbox), GTK_WIDGET (grid));
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xalign = gtk_frame_get_label_align (frame);
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/* Spin to control :label-xalign */
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widget = gtk_label_new ("label xalign:");
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gtk_grid_attach (grid, widget, 0, 0, 1, 1);
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widget = gtk_spin_button_new_with_range (0.0, 1.0, 0.1);
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gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), xalign);
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g_signal_connect (widget, "value-changed", G_CALLBACK (spin_xalign_cb), frame);
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gtk_grid_attach (grid, widget, 1, 0, 1, 1);
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/* Spin to control vertical padding */
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widget = gtk_label_new ("vertical padding:");
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gtk_grid_attach (grid, widget, 0, 1, 1, 1);
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widget = gtk_spin_button_new_with_range (0, 250, 1);
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g_signal_connect (widget, "value-changed", G_CALLBACK (spin_vpadding_cb), frame);
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gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), 0);
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gtk_grid_attach (grid, widget, 1, 1, 1, 1);
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/* Spin to control horizontal padding */
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widget = gtk_label_new ("horizontal padding:");
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gtk_grid_attach (grid, widget, 0, 2, 1, 1);
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widget = gtk_spin_button_new_with_range (0, 250, 1);
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g_signal_connect (widget, "value-changed", G_CALLBACK (spin_hpadding_cb), frame);
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gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), 0);
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gtk_grid_attach (grid, widget, 1, 2, 1, 1);
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/* CheckButton to control whether to draw border */
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draw_border = gtk_frame_get_shadow_type (frame) != GTK_SHADOW_NONE;
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widget = gtk_check_button_new_with_label ("draw border");
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), draw_border);
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g_signal_connect (widget, "toggled", G_CALLBACK (draw_border_cb), frame);
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gtk_grid_attach (grid, widget, 0, 3, 1, 1);
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gtk_widget_show (window);
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while (!done)
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g_main_context_iteration (NULL, TRUE);
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return 0;
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}
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