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widget-factory: Improve the error states example

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Elaborate the error state handling, and make it show
delayed states in GtkSwitch too.
This commit is contained in:
Matthias Clasen 2020-08-15 08:26:28 -04:00
parent bcd0a9e5d8
commit 8acd60fda9
2 changed files with 55 additions and 3 deletions
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51
demos/widget-factory/widget-factory.c
View File

@ -1896,6 +1896,48 @@ validate_more_details (GtkEntry *entry,
}
}
static gboolean
mode_switch_state_set (GtkSwitch *sw, gboolean state)
{
GtkWidget *dialog = gtk_widget_get_ancestor (GTK_WIDGET (sw), GTK_TYPE_DIALOG);
GtkWidget *scale = GTK_WIDGET (g_object_get_data (G_OBJECT (dialog), "level_scale"));
GtkWidget *label = GTK_WIDGET (g_object_get_data (G_OBJECT (dialog), "error_label"));
if (!state ||
(gtk_range_get_value (GTK_RANGE (scale)) > 50))
{
gtk_widget_hide (label);
gtk_switch_set_state (sw, state);
}
else
{
gtk_widget_show (label);
}
return TRUE;
}
static void
level_scale_value_changed (GtkRange *range)
{
GtkWidget *dialog = gtk_widget_get_ancestor (GTK_WIDGET (range), GTK_TYPE_DIALOG);
GtkWidget *sw = GTK_WIDGET (g_object_get_data (G_OBJECT (dialog), "mode_switch"));
GtkWidget *label = GTK_WIDGET (g_object_get_data (G_OBJECT (dialog), "error_label"));
if (gtk_switch_get_active (GTK_SWITCH (sw)) &&
!gtk_switch_get_state (GTK_SWITCH (sw)) &&
(gtk_range_get_value (range) > 50))
{
gtk_widget_hide (label);
gtk_switch_set_state (GTK_SWITCH (sw), TRUE);
}
else if (gtk_switch_get_state (GTK_SWITCH (sw)) &&
(gtk_range_get_value (range) <= 50))
{
gtk_switch_set_state (GTK_SWITCH (sw), FALSE);
}
}
static void
activate (GApplication *app)
{
@ -1978,6 +2020,8 @@ activate (GApplication *app)
"osd_frame_pressed", (GCallback)osd_frame_pressed,
"age_entry_changed", (GCallback)age_entry_changed,
"validate_more_details", (GCallback)validate_more_details,
"mode_switch_state_set", (GCallback)mode_switch_state_set,
"level_scale_value_changed", (GCallback)level_scale_value_changed,
NULL);
gtk_builder_set_scope (builder, scope);
g_object_unref (scope);
@ -2101,6 +2145,13 @@ activate (GApplication *app)
widget = (GtkWidget *)gtk_builder_get_object (builder, "circular_button");
g_signal_connect (widget, "clicked", G_CALLBACK (show_dialog), dialog);
widget = (GtkWidget *)gtk_builder_get_object (builder, "level_scale");
g_object_set_data (G_OBJECT (dialog), "level_scale", widget);
widget = (GtkWidget *)gtk_builder_get_object (builder, "mode_switch");
g_object_set_data (G_OBJECT (dialog), "mode_switch", widget);
widget = (GtkWidget *)gtk_builder_get_object (builder, "error_label");
g_object_set_data (G_OBJECT (dialog), "error_label", widget);
dialog = (GtkWidget *)gtk_builder_get_object (builder, "selection_dialog");
g_object_set_data (G_OBJECT (window), "selection_dialog", dialog);
widget = (GtkWidget *)gtk_builder_get_object (builder, "text3");

7
demos/widget-factory/widget-factory.ui
View File

@ -3078,6 +3078,7 @@ bad things might happen.</property>
<property name="valign">baseline</property>
<property name="draw-value">0</property>
<property name="adjustment">adjustment1</property>
<signal name="value-changed" handler="level_scale_value_changed"/>
<layout>
<property name="column">1</property>
<property name="row">2</property>
@ -3105,6 +3106,7 @@ bad things might happen.</property>
<object class="GtkSwitch" id="mode_switch">
<property name="halign">start</property>
<property name="valign">baseline</property>
<signal name="state-set" handler="mode_switch_state_set"/>
<layout>
<property name="column">1</property>
<property name="row">3</property>
@ -3112,12 +3114,11 @@ bad things might happen.</property>
</object>
</child>
<child>
<object class="GtkLabel" id="switch_error">
<object class="GtkLabel" id="error_label">
<property name="visible">0</property>
<property name="halign">start</property>
<property name="valign">baseline</property>
<property name="label">Error!</property>
<property name="visible" bind-source="mode_switch" bind-property="active"></property>
<property name="label">Level too low</property>
<style>
<class name="error"/>
</style>