#include <string.h>#include <gtk/gtk.h>static const char *css =".overlay-green {" " background-image: none;" " background-color: green;" "}\n" ".overlay-white {" " background-image: none;" " background-color: white;" "}\n" ".transparent-red {" " background-image: none;" " background-color: rgba(255, 0, 0, 0.8);" "}\n" ".transparent-green {" " background-image: none;" " background-color: rgba(0, 255, 0, 0.8);" "}\n" ".transparent-blue {" " background-image: none;" " background-color: rgba(0, 0, 255, 0.8);" "}\n" ".transparent-purple {" " background-image: none;" " background-color: rgba(255, 0, 255, 0.8);" "}\n" /* test that margins and non-zero allocation x/y * of the main widget are handled correctly static GtkWidget *void )"Non-zero X" );5 );5 );5 );5 );"Above" ), 1 , 0 , 1 , 1 );"Below" ), 1 , 2 , 1 , 1 );"Left" ), 0 , 1 , 1 , 1 );"Right" ), 2 , 1 , 1 , 1 );1 , 1 , 1 , 1 );200 , 200 );TRUE );TRUE );"I'm the overlay" );3 );3 );3 );3 );"No, I'm the overlay" );3 );3 );3 );3 );return win;static gbooleandouble x, y;0 , 0 , &x, &y);if (gtk_widget_get_halign (widget) == GTK_ALIGN_END)if (gtk_widget_get_valign (widget) == GTK_ALIGN_END)return TRUE ;/* test custom positioning */ static GtkWidget *void )"Custom positioning" );"Above" ), 1 , 0 , 1 , 1 );"Below" ), 1 , 2 , 1 , 1 );"Left" ), 0 , 1 , 1 , 1 );"Right" ), 2 , 1 , 1 , 1 );200 , 200 );5 );5 );5 );5 );TRUE );TRUE );1 , 1 , 1 , 1 );"get-child-position" ,"Top left overlay" );1 );1 );1 );1 );"Bottom right overlay" );1 );1 );1 );1 );return win;/* test GTK_ALIGN_FILL handling */ static GtkWidget *void )"Full-width" );200 , 200 );TRUE );TRUE );"Fullwidth top overlay" );4 );4 );4 );4 );return win;/* test that scrolling works as expected */ static GtkWidget *void )char *contents;"Scrolling" );200 );200 );if (!g_file_get_contents ("testoverlay.c" , &contents, &len, NULL))"Text should go here..." );TRUE );TRUE );"This should be visible" );4 );4 );4 );4 );return win;static const char *buffer ="<interface>" " <object class='GtkWindow' id='window'>" " <property name='title'>GtkBuilder support</property>" " <child>" " <object class='GtkOverlay' id='overlay'>" " <child type='overlay'>" " <object class='GtkLabel' id='overlay-child'>" " <property name='label'>Witty remark goes here</property>" " <property name='halign'>end</property>" " <property name='valign'>end</property>" " <property name='margin-top'>4</property>" " <property name='margin-bottom'>4</property>" " <property name='margin-start'>4</property>" " <property name='margin-end'>4</property>" " </object>" " </child>" " <child>" " <object class='GtkGrid' id='grid'>" " <child>" " <object class='GtkLabel' id='left'>" " <property name='label'>Left</property>" " <layout>" " <property name='column'>0</property>" " <property name='row'>0</property>" " </layout>" " </object>" " </child>" " <child>" " <object class='GtkLabel' id='right'>" " <property name='label'>Right</property>" " <layout>" " <property name='column'>2</property>" " <property name='row'>0</property>" " </layout>" " </object>" " </child>" " <child>" " <object class='GtkTextView' id='text'>" " <property name='width-request'>200</property>" " <property name='height-request'>200</property>" " <property name='hexpand'>True</property>" " <property name='vexpand'>True</property>" " <layout>" " <property name='column'>1</property>" " <property name='row'>0</property>" " </layout>" " </object>" " </child>" " </object>" " </child>" " </object>" " </child>" " </object>" "</interface>" ;/* test that overlays can be constructed with GtkBuilder */ static GtkWidget *void )if (!gtk_builder_add_from_string (builder, buffer, -1 , &error))"%s" , error->message);return NULL;"window" );return win;static void double x,double y,if (gtk_widget_get_halign (child) == GTK_ALIGN_START)else static GtkWidget *void )char *contents;"Chase" );200 );200 );if (!g_file_get_contents ("testoverlay.c" , &contents, &len, NULL))"Text should go here..." );TRUE );TRUE );"Try to enter" );4 );4 );4 );4 );"enter" , G_CALLBACK (on_enter), overlay);return win;static GtkWidget *void )"Stacking" );0 );"overlay-green" );TRUE );TRUE );"Main child" );"Overlay" );"Show main" );"visible" , check1, "active" , G_BINDING_BIDIRECTIONAL);"Show overlay" );"visible" , check2, "active" , G_BINDING_BIDIRECTIONAL);1 , 0 , 1 , 3 );0 , 0 , 1 , 1 );0 , 1 , 1 , 1 );"" );TRUE );0 , 2 , 1 , 1 );return win;static GtkWidget *void )int i,j;"Input Stacking" );for (j = 0 ; j < 5 ; j++)for (i = 0 ; i < 5 ; i++)" " );TRUE );TRUE );1 , 1 );10 );FALSE );"This is some overlaid text\n" "It does not get input\n" "But the entry does" );8 );8 );8 );8 );return win;int int argc, char *argv[])if (g_getenv ("RTL" ))1 );while (TRUE )TRUE );return 0 ;
Messung V0.5 in Prozent C=98 H=95 G=96
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(vorverarbeitet am 2026-07-03)
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