forked from AuroraMiddleware/gtk
537 lines
16 KiB
C
537 lines
16 KiB
C
#include <string.h>
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#include <gtk/gtk.h>
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static const char *css =
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".overlay-green {"
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" background-image: none;"
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" background-color: green;"
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"}\n"
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".overlay-white {"
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" background-image: none;"
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" background-color: white;"
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"}\n"
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".transparent-red {"
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" background-image: none;"
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" background-color: rgba(255, 0, 0, 0.8);"
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"}\n"
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".transparent-green {"
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" background-image: none;"
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" background-color: rgba(0, 255, 0, 0.8);"
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"}\n"
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".transparent-blue {"
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" background-image: none;"
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" background-color: rgba(0, 0, 255, 0.8);"
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"}\n"
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".transparent-purple {"
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" background-image: none;"
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" background-color: rgba(255, 0, 255, 0.8);"
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"}\n"
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;
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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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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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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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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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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 (GtkEventController *controller,
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double x,
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double y,
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GtkWidget *overlay)
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{
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GtkWidget *child = gtk_event_controller_get_widget (controller);
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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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GtkEventController *controller;
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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_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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controller = gtk_event_controller_motion_new ();
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g_signal_connect (controller, "enter", G_CALLBACK (on_enter), overlay);
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gtk_widget_add_controller (child, controller);
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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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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_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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gtk_style_context_add_class (gtk_widget_get_style_context (main_child), "overlay-green");
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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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static GtkWidget *
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test_input_stacking (void)
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{
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GtkWidget *win;
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GtkWidget *overlay;
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GtkWidget *label, *entry;
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GtkWidget *grid;
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GtkWidget *button;
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GtkWidget *vbox;
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int i,j;
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win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title (GTK_WINDOW (win), "Input Stacking");
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overlay = gtk_overlay_new ();
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grid = gtk_grid_new ();
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gtk_container_add (GTK_CONTAINER (overlay), grid);
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for (j = 0; j < 5; j++)
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{
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for (i = 0; i < 5; i++)
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{
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button = gtk_button_new_with_label (" ");
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gtk_widget_set_hexpand (button, TRUE);
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gtk_widget_set_vexpand (button, TRUE);
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gtk_grid_attach (GTK_GRID (grid), button, i, j, 1, 1);
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}
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}
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
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gtk_overlay_add_overlay (GTK_OVERLAY (overlay), vbox);
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gtk_widget_set_can_target (vbox, FALSE);
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gtk_widget_set_halign (vbox, GTK_ALIGN_CENTER);
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gtk_widget_set_valign (vbox, GTK_ALIGN_CENTER);
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label = gtk_label_new ("This is some overlaid text\n"
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"It does not get input\n"
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"But the entry does");
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gtk_widget_set_margin_top (label, 8);
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gtk_widget_set_margin_bottom (label, 8);
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|
gtk_container_add (GTK_CONTAINER (vbox), label);
|
|
|
|
entry = gtk_entry_new ();
|
|
gtk_widget_set_margin_top (entry, 8);
|
|
gtk_widget_set_margin_bottom (entry, 8);
|
|
gtk_container_add (GTK_CONTAINER (vbox), entry);
|
|
|
|
|
|
gtk_container_add (GTK_CONTAINER (win), overlay);
|
|
|
|
return win;
|
|
}
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
GtkWidget *win1;
|
|
GtkWidget *win2;
|
|
GtkWidget *win3;
|
|
GtkWidget *win4;
|
|
GtkWidget *win5;
|
|
GtkWidget *win6;
|
|
GtkWidget *win7;
|
|
GtkWidget *win8;
|
|
GtkCssProvider *css_provider;
|
|
|
|
gtk_init ();
|
|
|
|
if (g_getenv ("RTL"))
|
|
gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);
|
|
|
|
css_provider = gtk_css_provider_new ();
|
|
gtk_css_provider_load_from_data (css_provider, css, -1);
|
|
gtk_style_context_add_provider_for_display (gdk_display_get_default (),
|
|
GTK_STYLE_PROVIDER (css_provider),
|
|
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
|
|
|
|
win1 = test_nonzerox ();
|
|
gtk_widget_show (win1);
|
|
|
|
win2 = test_relative ();
|
|
gtk_widget_show (win2);
|
|
|
|
win3 = test_fullwidth ();
|
|
gtk_widget_show (win3);
|
|
|
|
win4 = test_scrolling ();
|
|
gtk_widget_show (win4);
|
|
|
|
win5 = test_builder ();
|
|
gtk_widget_show (win5);
|
|
|
|
win6 = test_chase ();
|
|
gtk_widget_show (win6);
|
|
|
|
win7 = test_stacking ();
|
|
gtk_widget_show (win7);
|
|
|
|
win8 = test_input_stacking ();
|
|
gtk_widget_show (win8);
|
|
|
|
while (TRUE)
|
|
g_main_context_iteration (NULL, TRUE);
|
|
|
|
return 0;
|
|
}
|