diff options
Diffstat (limited to 'src/libui_sdl/libui/unix/cellrendererbutton.c')
| -rw-r--r-- | src/libui_sdl/libui/unix/cellrendererbutton.c | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/src/libui_sdl/libui/unix/cellrendererbutton.c b/src/libui_sdl/libui/unix/cellrendererbutton.c deleted file mode 100644 index e3bbf48..0000000 --- a/src/libui_sdl/libui/unix/cellrendererbutton.c +++ /dev/null @@ -1,299 +0,0 @@ -// 28 june 2016 -#include "uipriv_unix.h" - -// TODOs -// - it's a rather tight fit -// - selected row text color is white -// - resizing a column with a button in it crashes the program -// - accessibility -// - right side too big? - -#define cellRendererButtonType (cellRendererButton_get_type()) -#define cellRendererButton(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), cellRendererButtonType, cellRendererButton)) -#define isCellRendererButton(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), cellRendererButtonType)) -#define cellRendererButtonClass(class) (G_TYPE_CHECK_CLASS_CAST((class), cellRendererButtonType, cellRendererButtonClass)) -#define isCellRendererButtonClass(class) (G_TYPE_CHECK_CLASS_TYPE((class), cellRendererButton)) -#define getCellRendererButtonClass(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), cellRendererButtonType, cellRendererButtonClass)) - -typedef struct cellRendererButton cellRendererButton; -typedef struct cellRendererButtonClass cellRendererButtonClass; - -struct cellRendererButton { - GtkCellRenderer parent_instance; - char *text; -}; - -struct cellRendererButtonClass { - GtkCellRendererClass parent_class; -}; - -G_DEFINE_TYPE(cellRendererButton, cellRendererButton, GTK_TYPE_CELL_RENDERER) - -static void cellRendererButton_init(cellRendererButton *c) -{ - g_object_set(c, "mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE, NULL); - // the standard cell renderers all do this - gtk_cell_renderer_set_padding(GTK_CELL_RENDERER(c), 2, 2); -} - -static void cellRendererButton_dispose(GObject *obj) -{ - G_OBJECT_CLASS(cellRendererButton_parent_class)->dispose(obj); -} - -static void cellRendererButton_finalize(GObject *obj) -{ - cellRendererButton *c = cellRendererButton(obj); - - if (c->text != NULL) { - g_free(c->text); - c->text = NULL; - } - G_OBJECT_CLASS(cellRendererButton_parent_class)->finalize(obj); -} - -static GtkSizeRequestMode cellRendererButton_get_request_mode(GtkCellRenderer *r) -{ - return GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH; -} - -// this is basically what GtkCellRendererToggle did in 3.10 and does in 3.20, as well as what the Foreign Drawing gtk3-demo demo does -static GtkStyleContext *setButtonStyle(GtkWidget *widget) -{ - GtkStyleContext *base, *context; - GtkWidgetPath *path; - - base = gtk_widget_get_style_context(widget); - context = gtk_style_context_new(); - - path = gtk_widget_path_copy(gtk_style_context_get_path(base)); - gtk_widget_path_append_type(path, G_TYPE_NONE); - if (!FUTURE_gtk_widget_path_iter_set_object_name(path, -1, "button")) - // not on 3.20; try the type - gtk_widget_path_iter_set_object_type(path, -1, GTK_TYPE_BUTTON); - - gtk_style_context_set_path(context, path); - gtk_style_context_set_parent(context, base); - // the gtk3-demo example (which says we need to do this) uses gtk_widget_path_iter_get_state(path, -1) but that's not available until 3.14 - // TODO make a future for that too - gtk_style_context_set_state(context, gtk_style_context_get_state(base)); - gtk_widget_path_unref(path); - - // and if the above widget path screwery stil doesn't work, this will - gtk_style_context_add_class(context, GTK_STYLE_CLASS_BUTTON); - - return context; -} - -void unsetButtonStyle(GtkStyleContext *context) -{ - g_object_unref(context); -} - -// this is based on what GtkCellRendererText does -static void cellRendererButton_get_preferred_width(GtkCellRenderer *r, GtkWidget *widget, gint *minimum, gint *natural) -{ - cellRendererButton *c = cellRendererButton(r); - gint xpad; - PangoLayout *layout; - PangoRectangle rect; - gint out; - - gtk_cell_renderer_get_padding(GTK_CELL_RENDERER(c), &xpad, NULL); - - layout = gtk_widget_create_pango_layout(widget, c->text); - pango_layout_set_width(layout, -1); - pango_layout_get_extents(layout, NULL, &rect); - g_object_unref(layout); - - out = 2 * xpad + PANGO_PIXELS_CEIL(rect.width); - if (minimum != NULL) - *minimum = out; - if (natural != NULL) - *natural = out; -} - -// this is based on what GtkCellRendererText does -static void cellRendererButton_get_preferred_height_for_width(GtkCellRenderer *r, GtkWidget *widget, gint width, gint *minimum, gint *natural) -{ - cellRendererButton *c = cellRendererButton(r); - gint xpad, ypad; - PangoLayout *layout; - gint height; - gint out; - - gtk_cell_renderer_get_padding(GTK_CELL_RENDERER(c), &xpad, &ypad); - - layout = gtk_widget_create_pango_layout(widget, c->text); - pango_layout_set_width(layout, ((2 * xpad + width) * PANGO_SCALE)); - pango_layout_get_pixel_size(layout, NULL, &height); - g_object_unref(layout); - - out = 2 * ypad + height; - if (minimum != NULL) - *minimum = out; - if (natural != NULL) - *natural = out; -} - -// this is basically what GtkCellRendererText does -static void cellRendererButton_get_preferred_height(GtkCellRenderer *r, GtkWidget *widget, gint *minimum, gint *natural) -{ - gint width; - - gtk_cell_renderer_get_preferred_width(r, widget, &width, NULL); - gtk_cell_renderer_get_preferred_height_for_width(r, widget, width, minimum, natural); -} - -// this is based on what GtkCellRendererText does -static void cellRendererButton_get_aligned_area(GtkCellRenderer *r, GtkWidget *widget, GtkCellRendererState flags, const GdkRectangle *cell_area, GdkRectangle *aligned_area) -{ - cellRendererButton *c = cellRendererButton(r); - gint xpad, ypad; - PangoLayout *layout; - PangoRectangle rect; - gfloat xalign, yalign; - gint xoffset, yoffset; - - gtk_cell_renderer_get_padding(GTK_CELL_RENDERER(c), &xpad, &ypad); - - layout = gtk_widget_create_pango_layout(widget, c->text); - pango_layout_set_width(layout, -1); - pango_layout_get_pixel_extents(layout, NULL, &rect); - - xoffset = 0; - yoffset = 0; - if (cell_area != NULL) { - gtk_cell_renderer_get_alignment(GTK_CELL_RENDERER(c), &xalign, &yalign); - xoffset = cell_area->width - (2 * xpad + rect.width); - // use explicit casts just to be safe - if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL) - xoffset = ((gdouble) xoffset) * (1.0 - xalign); - else - xoffset *= ((gdouble) xoffset) * xalign; - yoffset = yalign * (cell_area->height - (2 * ypad + rect.height)); - yoffset = MAX(yoffset, 0); - } - - aligned_area->x = cell_area->x + xoffset; - aligned_area->y = cell_area->y + yoffset; - aligned_area->width = 2 * xpad + rect.width; - aligned_area->height = 2 * ypad + rect.height; - - g_object_unref(layout); -} - -// this is based on both what GtkCellRendererText does and what GtkCellRendererToggle does -static void cellRendererButton_render(GtkCellRenderer *r, cairo_t *cr, GtkWidget *widget, const GdkRectangle *background_area, const GdkRectangle *cell_area, GtkCellRendererState flags) -{ - cellRendererButton *c = cellRendererButton(r); - gint xpad, ypad; - GdkRectangle alignedArea; - gint xoffset, yoffset; - GtkStyleContext *context; - PangoLayout *layout; - PangoRectangle rect; - - gtk_cell_renderer_get_padding(GTK_CELL_RENDERER(c), &xpad, &ypad); - gtk_cell_renderer_get_aligned_area(GTK_CELL_RENDERER(c), widget, flags, cell_area, &alignedArea); - xoffset = alignedArea.x - cell_area->x; - yoffset = alignedArea.y - cell_area->y; - - context = setButtonStyle(widget); - layout = gtk_widget_create_pango_layout(widget, c->text); - - gtk_render_background(context, cr, - background_area->x + xoffset + xpad, - background_area->y + yoffset + ypad, - background_area->width - 2 * xpad, - background_area->height - 2 * ypad); - gtk_render_frame(context, cr, - background_area->x + xoffset + xpad, - background_area->y + yoffset + ypad, - background_area->width - 2 * xpad, - background_area->height - 2 * ypad); - - pango_layout_set_width(layout, -1); - pango_layout_get_pixel_extents(layout, NULL, &rect); - xoffset -= rect.x; - gtk_render_layout(context, cr, - cell_area->x + xoffset + xpad, - cell_area->y + yoffset + ypad, - layout); - - g_object_unref(layout); - unsetButtonStyle(context); -} - -static guint clickedSignal; - -static gboolean cellRendererButton_activate(GtkCellRenderer *r, GdkEvent *e, GtkWidget *widget, const gchar *path, const GdkRectangle *background_area, const GdkRectangle *cell_area, GtkCellRendererState flags) -{ - g_signal_emit(r, clickedSignal, 0, path); - return TRUE; -} - -static GParamSpec *props[2] = { NULL, NULL }; - -static void cellRendererButton_set_property(GObject *object, guint prop, const GValue *value, GParamSpec *pspec) -{ - cellRendererButton *c = cellRendererButton(object); - - if (prop != 1) { - G_OBJECT_WARN_INVALID_PROPERTY_ID(c, prop, pspec); - return; - } - if (c->text != NULL) - g_free(c->text); - c->text = g_value_dup_string(value); - // GtkCellRendererText doesn't queue a redraw; we won't either -} - -static void cellRendererButton_get_property(GObject *object, guint prop, GValue *value, GParamSpec *pspec) -{ - cellRendererButton *c = cellRendererButton(object); - - if (prop != 1) { - G_OBJECT_WARN_INVALID_PROPERTY_ID(c, prop, pspec); - return; - } - g_value_set_string(value, c->text); -} - -static void cellRendererButton_class_init(cellRendererButtonClass *class) -{ - G_OBJECT_CLASS(class)->dispose = cellRendererButton_dispose; - G_OBJECT_CLASS(class)->finalize = cellRendererButton_finalize; - G_OBJECT_CLASS(class)->set_property = cellRendererButton_set_property; - G_OBJECT_CLASS(class)->get_property = cellRendererButton_get_property; - GTK_CELL_RENDERER_CLASS(class)->get_request_mode = cellRendererButton_get_request_mode; - GTK_CELL_RENDERER_CLASS(class)->get_preferred_width = cellRendererButton_get_preferred_width; - GTK_CELL_RENDERER_CLASS(class)->get_preferred_height_for_width = cellRendererButton_get_preferred_height_for_width; - GTK_CELL_RENDERER_CLASS(class)->get_preferred_height = cellRendererButton_get_preferred_height; - // don't provide a get_preferred_width_for_height() - GTK_CELL_RENDERER_CLASS(class)->get_aligned_area = cellRendererButton_get_aligned_area; - // don't provide a get_size() - GTK_CELL_RENDERER_CLASS(class)->render = cellRendererButton_render; - GTK_CELL_RENDERER_CLASS(class)->activate = cellRendererButton_activate; - // don't provide a start_editing() - - props[1] = g_param_spec_string("text", - "Text", - "Button text", - "", - G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS); - g_object_class_install_properties(G_OBJECT_CLASS(class), 2, props); - - clickedSignal = g_signal_new("clicked", - G_TYPE_FROM_CLASS(class), - G_SIGNAL_RUN_LAST, - 0, - NULL, NULL, NULL, - G_TYPE_NONE, - 1, G_TYPE_STRING); -} - -GtkCellRenderer *newCellRendererButton(void) -{ - return GTK_CELL_RENDERER(g_object_new(cellRendererButtonType, NULL)); -} |