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https://gitlab.gnome.org/GNOME/gtk.git
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gtk-demo: Add another demo
This one is a more or less direct copy of the settings dialog from widget-factory, demonstrating error states and builder scopes.
This commit is contained in:
Matthias Clasen
parent
7518fd0d70
commit
a90801e696
@ -112,6 +112,9 @@
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<gresource prefix="/dnd">
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<file>dnd.css</file>
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</gresource>
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<gresource prefix="/errorstates">
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<file>errorstates.ui</file>
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</gresource>
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<gresource prefix="/fishbowl">
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<file>fishbowl.ui</file>
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<file>gtkfishbowl.c</file>
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@ -222,6 +225,7 @@
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<file>editable_cells.c</file>
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<file>entry_completion.c</file>
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<file>entry_undo.c</file>
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<file>errorstates.c</file>
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<file>expander.c</file>
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<file>filtermodel.c</file>
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<file>fishbowl.c</file>
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124
demos/gtk-demo/errorstates.c
Normal file
124
demos/gtk-demo/errorstates.c
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@ -0,0 +1,124 @@
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/* Error states
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*
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* GtkLabel and GtkEntry can indicate errors if you set the .error
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* style class on them.
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*
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* This examples shows how this can be used in a dialog for input validation.
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*
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* It also shows how pass callbacks and objects to GtkBuilder with
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* GtkBuilderScope and gtk_builder_expose_object().
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*/
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#include <glib/gi18n.h>
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#include <gtk/gtk.h>
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static void
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validate_more_details (GtkEntry *entry,
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GParamSpec *pspec,
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GtkEntry *details)
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{
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if (strlen (gtk_editable_get_text (GTK_EDITABLE (entry))) > 0 &&
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strlen (gtk_editable_get_text (GTK_EDITABLE (details))) == 0)
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{
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gtk_widget_set_tooltip_text (GTK_WIDGET (entry), "Must have details first");
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gtk_widget_add_css_class (GTK_WIDGET (entry), "error");
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}
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else
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{
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gtk_widget_set_tooltip_text (GTK_WIDGET (entry), "");
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gtk_widget_remove_css_class (GTK_WIDGET (entry), "error");
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}
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}
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static gboolean
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mode_switch_state_set (GtkSwitch *sw,
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gboolean state,
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GtkWidget *scale)
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{
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GtkWidget *label;
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label = GTK_WIDGET (g_object_get_data (G_OBJECT (sw), "error_label"));
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if (!state ||
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(gtk_range_get_value (GTK_RANGE (scale)) > 50))
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{
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gtk_widget_hide (label);
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gtk_switch_set_state (sw, state);
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}
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else
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{
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gtk_widget_show (label);
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}
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return TRUE;
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}
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static void
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level_scale_value_changed (GtkRange *range,
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GtkWidget *sw)
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{
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GtkWidget *label;
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label = GTK_WIDGET (g_object_get_data (G_OBJECT (sw), "error_label"));
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if (gtk_switch_get_active (GTK_SWITCH (sw)) &&
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!gtk_switch_get_state (GTK_SWITCH (sw)) &&
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(gtk_range_get_value (range) > 50))
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{
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gtk_widget_hide (label);
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gtk_switch_set_state (GTK_SWITCH (sw), TRUE);
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}
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else if (gtk_switch_get_state (GTK_SWITCH (sw)) &&
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(gtk_range_get_value (range) <= 50))
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{
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gtk_switch_set_state (GTK_SWITCH (sw), FALSE);
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}
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}
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GtkWidget *
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do_errorstates (GtkWidget *do_widget)
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{
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static GtkWidget *window = NULL;
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if (!window)
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{
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GtkWidget *toplevel;
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GtkBuilder *builder;
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GtkBuilderScope *scope;
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GtkWidget *sw, *label;
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toplevel = GTK_WIDGET (gtk_widget_get_root (do_widget));
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scope = gtk_builder_cscope_new ();
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gtk_builder_cscope_add_callback_symbols (GTK_BUILDER_CSCOPE (scope),
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"validate_more_details", G_CALLBACK (validate_more_details),
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"mode_switch_state_set", G_CALLBACK (mode_switch_state_set),
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"level_scale_value_changed", G_CALLBACK (level_scale_value_changed),
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NULL);
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builder = gtk_builder_new ();
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gtk_builder_set_scope (builder, scope);
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gtk_builder_expose_object (builder, "toplevel", G_OBJECT (toplevel));
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gtk_builder_add_from_resource (builder, "/errorstates/errorstates.ui", NULL);
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window = GTK_WIDGET (gtk_builder_get_object (builder, "dialog"));
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gtk_window_set_display (GTK_WINDOW (window),
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gtk_widget_get_display (do_widget));
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g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
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sw = GTK_WIDGET (gtk_builder_get_object (builder, "mode_switch"));
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label = GTK_WIDGET (gtk_builder_get_object (builder, "error_label"));
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g_object_set_data (G_OBJECT (sw), "error_label", label);
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g_object_unref (builder);
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g_object_unref (scope);
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}
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if (!gtk_widget_get_visible (window))
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gtk_widget_show (window);
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else
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gtk_window_destroy (GTK_WINDOW (window));
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return window;
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}
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158
demos/gtk-demo/errorstates.ui
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158
demos/gtk-demo/errorstates.ui
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@ -0,0 +1,158 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<interface>
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<object class="GtkDialog" id="dialog">
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<property name="transient-for">toplevel</property>
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<property name="modal">1</property>
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<property name="resizable">0</property>
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<property name="use-header-bar">1</property>
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<property name="title" translatable="yes">Settings</property>
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<property name="hide-on-close">1</property>
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<child internal-child="content_area">
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<object class="GtkBox">
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<child>
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<object class="GtkGrid">
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<property name="row-spacing">10</property>
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<property name="column-spacing">10</property>
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<property name="margin-start">20</property>
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<property name="margin-end">20</property>
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<property name="margin-top">20</property>
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<property name="margin-bottom">20</property>
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<child>
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<object class="GtkLabel">
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<property name="halign">end</property>
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<property name="valign">baseline</property>
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<property name="label">_Details</property>
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<property name="use-underline">1</property>
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<property name="mnemonic-widget">details_entry</property>
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<style>
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<class name="dim-label"/>
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</style>
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<layout>
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<property name="column">0</property>
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<property name="row">0</property>
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</layout>
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</object>
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</child>
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<child>
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<object class="GtkEntry" id="details_entry">
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<property name="valign">baseline</property>
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<signal name="notify::text" handler="validate_more_details" object="more_details_entry" swapped="yes"/>
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<layout>
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<property name="column">1</property>
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<property name="row">0</property>
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<property name="column-span">2</property>
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</layout>
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</object>
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</child>
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<child>
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<object class="GtkLabel">
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<property name="halign">end</property>
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<property name="valign">baseline</property>
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<property name="label">More D_etails</property>
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<property name="use-underline">1</property>
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<property name="mnemonic-widget">more_details_entry</property>
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<style>
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<class name="dim-label"/>
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</style>
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<layout>
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<property name="column">0</property>
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<property name="row">1</property>
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</layout>
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</object>
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</child>
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<child>
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<object class="GtkEntry" id="more_details_entry">
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<property name="valign">baseline</property>
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<signal name="notify::text" handler="validate_more_details" object="details_entry" swapped="no"/>
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<layout>
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<property name="column">1</property>
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<property name="row">1</property>
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<property name="column-span">2</property>
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</layout>
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</object>
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</child>
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<child>
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<object class="GtkLabel">
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<property name="halign">end</property>
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<property name="valign">baseline</property>
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<property name="label">_Level</property>
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<property name="use-underline">1</property>
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<property name="mnemonic-widget">level_scale</property>
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<style>
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<class name="dim-label"/>
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</style>
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<layout>
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<property name="column">0</property>
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<property name="row">2</property>
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</layout>
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</object>
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</child>
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<child>
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<object class="GtkScale" id="level_scale">
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<property name="valign">baseline</property>
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<property name="draw-value">0</property>
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<property name="adjustment">
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<object class="GtkAdjustment">
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<property name="upper">100</property>
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<property name="lower">0</property>
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<property name="value">50</property>
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<property name="step-increment">1</property>
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<property name="page-increment">10</property>
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</object>
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</property>
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<signal name="value-changed" handler="level_scale_value_changed" object="mode_switch" swapped="no"/>
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<layout>
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<property name="column">1</property>
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<property name="row">2</property>
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<property name="column-span">2</property>
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</layout>
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</object>
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</child>
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<child>
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<object class="GtkLabel">
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<property name="halign">end</property>
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<property name="valign">baseline</property>
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<property name="label">_Mode</property>
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<property name="use-underline">1</property>
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<property name="mnemonic-widget">mode_switch</property>
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<style>
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<class name="dim-label"/>
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</style>
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<layout>
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<property name="column">0</property>
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<property name="row">3</property>
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</layout>
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</object>
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</child>
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<child>
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<object class="GtkSwitch" id="mode_switch">
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<property name="halign">start</property>
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<property name="valign">baseline</property>
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<signal name="state-set" handler="mode_switch_state_set" object="level_scale" swapped="no"/>
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<layout>
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<property name="column">1</property>
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<property name="row">3</property>
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</layout>
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</object>
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</child>
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<child>
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<object class="GtkLabel" id="error_label">
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<property name="visible">0</property>
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<property name="halign">start</property>
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<property name="valign">baseline</property>
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<property name="label">Level too low</property>
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<style>
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<class name="error"/>
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</style>
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<layout>
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<property name="column">2</property>
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<property name="row">3</property>
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</layout>
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</object>
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</child>
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</object>
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</child>
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</object>
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</child>
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</object>
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</interface>
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@ -23,6 +23,7 @@ demos = files([
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'editable_cells.c',
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'entry_completion.c',
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'entry_undo.c',
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'errorstates.c',
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'expander.c',
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'filtermodel.c',
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'fishbowl.c',
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