448 lines
13 KiB
C
448 lines
13 KiB
C
#include <string.h>
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#include <gtk/gtk.h>
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/* test that margins and non-zero allocation x/y
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* of the main widget are handled correctly
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*/
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static GtkWidget *
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test_nonzerox (void)
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{
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GtkWidget *win;
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GtkWidget *grid;
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GtkWidget *overlay;
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GtkWidget *text;
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GtkWidget *child;
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GdkRGBA color;
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win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title (GTK_WINDOW (win), "Non-zero X");
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grid = gtk_grid_new ();
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g_object_set (grid, "margin", 5, NULL);
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gtk_container_add (GTK_CONTAINER (win), grid);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Above"), 1, 0, 1, 1);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Below"), 1, 2, 1, 1);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Left"), 0, 1, 1, 1);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Right"), 2, 1, 1, 1);
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overlay = gtk_overlay_new ();
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gdk_rgba_parse (&color, "red");
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gtk_widget_override_background_color (overlay, 0, &color);
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gtk_grid_attach (GTK_GRID (grid), overlay, 1, 1, 1, 1);
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text = gtk_text_view_new ();
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gtk_widget_set_size_request (text, 200, 200);
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gtk_widget_set_hexpand (text, TRUE);
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gtk_widget_set_vexpand (text, TRUE);
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gtk_container_add (GTK_CONTAINER (overlay), text);
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child = gtk_label_new ("I'm the overlay");
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gtk_widget_set_halign (child, GTK_ALIGN_START);
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gtk_widget_set_valign (child, GTK_ALIGN_START);
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g_object_set (child, "margin", 3, NULL);
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gtk_overlay_add_overlay (GTK_OVERLAY (overlay), child);
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child = gtk_label_new ("No, I'm the overlay");
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gtk_widget_set_halign (child, GTK_ALIGN_END);
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gtk_widget_set_valign (child, GTK_ALIGN_END);
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gtk_overlay_add_overlay (GTK_OVERLAY (overlay), child);
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g_object_set (child, "margin", 3, NULL);
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return win;
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}
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static gboolean
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get_child_position (GtkOverlay *overlay,
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GtkWidget *widget,
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GtkAllocation *alloc,
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GtkWidget *relative)
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{
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GtkRequisition req;
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GtkWidget *child;
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GtkAllocation main_alloc;
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gint x, y;
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child = gtk_bin_get_child (GTK_BIN (overlay));
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gtk_widget_translate_coordinates (relative, child, 0, 0, &x, &y);
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main_alloc.x = x;
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main_alloc.y = y;
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main_alloc.width = gtk_widget_get_allocated_width (relative);
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main_alloc.height = gtk_widget_get_allocated_height (relative);
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gtk_widget_get_preferred_size (widget, NULL, &req);
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alloc->x = main_alloc.x;
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alloc->width = MIN (main_alloc.width, req.width);
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if (gtk_widget_get_halign (widget) == GTK_ALIGN_END)
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alloc->x += main_alloc.width - req.width;
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alloc->y = main_alloc.y;
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alloc->height = MIN (main_alloc.height, req.height);
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if (gtk_widget_get_valign (widget) == GTK_ALIGN_END)
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alloc->y += main_alloc.height - req.height;
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return TRUE;
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}
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/* test custom positioning */
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static GtkWidget *
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test_relative (void)
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{
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GtkWidget *win;
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GtkWidget *grid;
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GtkWidget *overlay;
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GtkWidget *text;
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GtkWidget *child;
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GdkRGBA color;
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win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title (GTK_WINDOW (win), "Custom positioning");
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overlay = gtk_overlay_new ();
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gdk_rgba_parse (&color, "yellow");
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gtk_widget_override_background_color (overlay, 0, &color);
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gtk_container_add (GTK_CONTAINER (win), overlay);
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grid = gtk_grid_new ();
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gtk_container_add (GTK_CONTAINER (overlay), grid);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Above"), 1, 0, 1, 1);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Below"), 1, 2, 1, 1);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Left"), 0, 1, 1, 1);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Right"), 2, 1, 1, 1);
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text = gtk_text_view_new ();
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gtk_widget_set_size_request (text, 200, 200);
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g_object_set (text, "margin", 5, NULL);
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gtk_widget_set_hexpand (text, TRUE);
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gtk_widget_set_vexpand (text, TRUE);
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gtk_grid_attach (GTK_GRID (grid), text, 1, 1, 1, 1);
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g_signal_connect (overlay, "get-child-position",
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G_CALLBACK (get_child_position), text);
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child = gtk_label_new ("Top left overlay");
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gtk_widget_set_halign (child, GTK_ALIGN_START);
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gtk_widget_set_valign (child, GTK_ALIGN_START);
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gtk_overlay_add_overlay (GTK_OVERLAY (overlay), child);
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g_object_set (child, "margin", 1, NULL);
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child = gtk_label_new ("Bottom right overlay");
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gtk_widget_set_halign (child, GTK_ALIGN_END);
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gtk_widget_set_valign (child, GTK_ALIGN_END);
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gtk_overlay_add_overlay (GTK_OVERLAY (overlay), child);
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g_object_set (child, "margin", 1, NULL);
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return win;
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}
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/* test GTK_ALIGN_FILL handling */
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static GtkWidget *
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test_fullwidth (void)
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{
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GtkWidget *win;
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GtkWidget *overlay;
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GtkWidget *text;
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GtkWidget *child;
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win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title (GTK_WINDOW (win), "Full-width");
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overlay = gtk_overlay_new ();
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gtk_container_add (GTK_CONTAINER (win), overlay);
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text = gtk_text_view_new ();
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gtk_widget_set_size_request (text, 200, 200);
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gtk_widget_set_hexpand (text, TRUE);
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gtk_widget_set_vexpand (text, TRUE);
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gtk_container_add (GTK_CONTAINER (overlay), text);
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child = gtk_label_new ("Fullwidth top overlay");
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gtk_widget_set_halign (child, GTK_ALIGN_FILL);
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gtk_widget_set_valign (child, GTK_ALIGN_START);
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gtk_overlay_add_overlay (GTK_OVERLAY (overlay), child);
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g_object_set (child, "margin", 4, NULL);
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return win;
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}
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/* test that scrolling works as expected */
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static GtkWidget *
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test_scrolling (void)
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{
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GtkWidget *win;
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GtkWidget *overlay;
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GtkWidget *sw;
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GtkWidget *text;
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GtkWidget *child;
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GtkTextBuffer *buffer;
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gchar *contents;
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gsize len;
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win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title (GTK_WINDOW (win), "Scrolling");
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overlay = gtk_overlay_new ();
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gtk_container_add (GTK_CONTAINER (win), overlay);
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_min_content_width (GTK_SCROLLED_WINDOW (sw), 200);
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gtk_scrolled_window_set_min_content_height (GTK_SCROLLED_WINDOW (sw), 200);
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gtk_container_add (GTK_CONTAINER (overlay), sw);
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text = gtk_text_view_new ();
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buffer = gtk_text_buffer_new (NULL);
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if (!g_file_get_contents ("testoverlay.c", &contents, &len, NULL))
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{
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contents = g_strdup ("Text should go here...");
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len = strlen (contents);
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}
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gtk_text_buffer_set_text (buffer, contents, len);
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g_free (contents);
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gtk_text_view_set_buffer (GTK_TEXT_VIEW (text), buffer);
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gtk_widget_set_hexpand (text, TRUE);
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gtk_widget_set_vexpand (text, TRUE);
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gtk_container_add (GTK_CONTAINER (sw), text);
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child = gtk_label_new ("This should be visible");
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gtk_widget_set_halign (child, GTK_ALIGN_CENTER);
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gtk_widget_set_valign (child, GTK_ALIGN_END);
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gtk_overlay_add_overlay (GTK_OVERLAY (overlay), child);
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g_object_set (child, "margin", 4, NULL);
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return win;
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}
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static const gchar *buffer =
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"<interface>"
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" <object class='GtkWindow' id='window'>"
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" <property name='title'>GtkBuilder support</property>"
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" <child>"
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" <object class='GtkOverlay' id='overlay'>"
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" <child type='overlay'>"
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" <object class='GtkLabel' id='overlay-child'>"
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" <property name='label'>Witty remark goes here</property>"
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" <property name='halign'>end</property>"
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" <property name='valign'>end</property>"
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" <property name='margin'>4</property>"
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" </object>"
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" </child>"
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" <child>"
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" <object class='GtkGrid' id='grid'>"
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" <child>"
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" <object class='GtkLabel' id='left'>"
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" <property name='label'>Left</property>"
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" </object>"
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" <packing>"
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" <property name='left_attach'>0</property>"
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" <property name='top_attach'>0</property>"
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" </packing>"
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" </child>"
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" <child>"
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" <object class='GtkLabel' id='right'>"
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" <property name='label'>Right</property>"
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" </object>"
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" <packing>"
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" <property name='left_attach'>2</property>"
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" <property name='top_attach'>0</property>"
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" </packing>"
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" </child>"
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" <child>"
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" <object class='GtkTextView' id='text'>"
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" <property name='width-request'>200</property>"
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" <property name='height-request'>200</property>"
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" <property name='hexpand'>True</property>"
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" <property name='vexpand'>True</property>"
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" </object>"
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" <packing>"
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" <property name='left_attach'>1</property>"
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" <property name='top_attach'>0</property>"
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" </packing>"
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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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/* test that overlays can be constructed with GtkBuilder */
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static GtkWidget *
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test_builder (void)
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{
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GtkBuilder *builder;
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GtkWidget *win;
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GError *error;
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builder = gtk_builder_new ();
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error = NULL;
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if (!gtk_builder_add_from_string (builder, buffer, -1, &error))
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{
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g_warning ("%s", error->message);
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g_error_free (error);
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return NULL;
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}
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win = (GtkWidget *)gtk_builder_get_object (builder, "window");
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g_object_ref (win);
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g_object_unref (builder);
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return win;
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}
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static void
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on_enter (GtkWidget *overlay, GdkEventCrossing *event, GtkWidget *child)
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{
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if (event->window != gtk_widget_get_window (child))
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return;
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if (gtk_widget_get_halign (child) == GTK_ALIGN_START)
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gtk_widget_set_halign (child, GTK_ALIGN_END);
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else
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gtk_widget_set_halign (child, GTK_ALIGN_START);
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gtk_widget_queue_resize (overlay);
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}
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static GtkWidget *
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test_chase (void)
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{
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GtkWidget *win;
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GtkWidget *overlay;
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GtkWidget *sw;
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GtkWidget *text;
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GtkWidget *child;
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GtkTextBuffer *buffer;
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gchar *contents;
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gsize len;
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win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title (GTK_WINDOW (win), "Chase");
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overlay = gtk_overlay_new ();
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gtk_widget_set_events (overlay, GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK);
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gtk_container_add (GTK_CONTAINER (win), overlay);
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_min_content_width (GTK_SCROLLED_WINDOW (sw), 200);
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gtk_scrolled_window_set_min_content_height (GTK_SCROLLED_WINDOW (sw), 200);
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gtk_container_add (GTK_CONTAINER (overlay), sw);
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text = gtk_text_view_new ();
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buffer = gtk_text_buffer_new (NULL);
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if (!g_file_get_contents ("testoverlay.c", &contents, &len, NULL))
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{
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contents = g_strdup ("Text should go here...");
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len = strlen (contents);
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}
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gtk_text_buffer_set_text (buffer, contents, len);
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g_free (contents);
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gtk_text_view_set_buffer (GTK_TEXT_VIEW (text), buffer);
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gtk_widget_set_hexpand (text, TRUE);
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gtk_widget_set_vexpand (text, TRUE);
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gtk_container_add (GTK_CONTAINER (sw), text);
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child = gtk_label_new ("Try to enter");
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gtk_widget_set_halign (child, GTK_ALIGN_START);
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gtk_widget_set_valign (child, GTK_ALIGN_END);
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gtk_overlay_add_overlay (GTK_OVERLAY (overlay), child);
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g_object_set (child, "margin", 4, NULL);
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g_signal_connect (overlay, "enter-notify-event",
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G_CALLBACK (on_enter), child);
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return win;
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}
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static GtkWidget *
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test_stacking (void)
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{
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GtkWidget *win;
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GtkWidget *overlay;
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GtkWidget *main_child;
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GtkWidget *label;
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GtkWidget *child;
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GtkWidget *grid;
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GtkWidget *check1;
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GtkWidget *check2;
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GdkRGBA color;
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win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title (GTK_WINDOW (win), "Stacking");
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grid = gtk_grid_new ();
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overlay = gtk_overlay_new ();
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main_child = gtk_event_box_new ();
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gdk_rgba_parse (&color, "green");
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gtk_widget_override_background_color (main_child, 0, &color);
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gtk_widget_set_hexpand (main_child, TRUE);
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gtk_widget_set_vexpand (main_child, TRUE);
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label = gtk_label_new ("Main child");
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child = gtk_label_new ("Overlay");
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gtk_widget_set_halign (child, GTK_ALIGN_END);
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gtk_widget_set_valign (child, GTK_ALIGN_END);
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check1 = gtk_check_button_new_with_label ("Show main");
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g_object_bind_property (main_child, "visible", check1, "active", G_BINDING_BIDIRECTIONAL);
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check2 = gtk_check_button_new_with_label ("Show overlay");
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g_object_bind_property (child, "visible", check2, "active", G_BINDING_BIDIRECTIONAL);
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gtk_container_add (GTK_CONTAINER (main_child), label);
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gtk_container_add (GTK_CONTAINER (overlay), main_child);
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gtk_overlay_add_overlay (GTK_OVERLAY (overlay), child);
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gtk_grid_attach (GTK_GRID (grid), overlay, 1, 0, 1, 3);
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gtk_container_add (GTK_CONTAINER (win), grid);
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gtk_grid_attach (GTK_GRID (grid), check1, 0, 0, 1, 1);
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gtk_grid_attach (GTK_GRID (grid), check2, 0, 1, 1, 1);
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child = gtk_label_new ("");
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gtk_widget_set_vexpand (child, TRUE);
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gtk_grid_attach (GTK_GRID (grid), child, 0, 2, 1, 1);
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return win;
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}
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int
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main (int argc, char *argv[])
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{
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GtkWidget *win1;
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GtkWidget *win2;
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GtkWidget *win3;
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GtkWidget *win4;
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GtkWidget *win5;
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GtkWidget *win6;
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GtkWidget *win7;
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gtk_init (&argc, &argv);
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if (g_getenv ("RTL"))
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gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);
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win1 = test_nonzerox ();
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gtk_widget_show_all (win1);
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win2 = test_relative ();
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gtk_widget_show_all (win2);
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win3 = test_fullwidth ();
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gtk_widget_show_all (win3);
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win4 = test_scrolling ();
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gtk_widget_show_all (win4);
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win5 = test_builder ();
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gtk_widget_show_all (win5);
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win6 = test_chase ();
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gtk_widget_show_all (win6);
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win7 = test_stacking ();
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gtk_widget_show_all (win7);
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gtk_main ();
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return 0;
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}
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