static void
update_preview_image (GthPreviewTool *self)
{
cairo_surface_t *image;
int width;
int height;
GtkAllocation allocation;
int max_size;
if (self->priv->preview_image != NULL) {
cairo_surface_destroy (self->priv->preview_image);
self->priv->preview_image = NULL;
}
image = gth_image_viewer_get_current_image (GTH_IMAGE_VIEWER (self->priv->viewer));
if (image == NULL)
return;
width = cairo_image_surface_get_width (image);
height = cairo_image_surface_get_height (image);
gtk_widget_get_allocation (GTK_WIDGET (self->priv->viewer), &allocation);
max_size = MAX (allocation.width, allocation.height) / G_SQRT2 + 2;
if (scale_keeping_ratio (&width, &height, max_size, max_size, FALSE))
self->priv->preview_image = _cairo_image_surface_scale_bilinear (image, width, height);
else
self->priv->preview_image = cairo_surface_reference (image);
self->priv->preview_image_area.width = width;
self->priv->preview_image_area.height = height;
self->priv->preview_image_area.x = MAX ((allocation.width - self->priv->preview_image_area.width) / 2 - 0.5, 0);
self->priv->preview_image_area.y = MAX ((allocation.height - self->priv->preview_image_area.height) / 2 - 0.5, 0);
}
static void
gth_file_tool_negative_activate (GthFileTool *base)
{
GtkWidget *window;
GtkWidget *viewer_page;
GtkWidget *viewer;
cairo_surface_t *image;
NegativeData *negative_data;
GthTask *task;
window = gth_file_tool_get_window (base);
viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
return;
viewer = gth_image_viewer_page_get_image_viewer (GTH_IMAGE_VIEWER_PAGE (viewer_page));
image = gth_image_viewer_get_current_image (GTH_IMAGE_VIEWER (viewer));
if (image == NULL)
return;
negative_data = g_new0 (NegativeData, 1);
negative_data->viewer_page = viewer_page;
negative_data->source = cairo_surface_reference (image);
task = gth_async_task_new (negative_init,
negative_exec,
negative_after,
negative_data,
negative_data_free);
gth_browser_exec_task (GTH_BROWSER (window), task, FALSE);
g_object_unref (task);
}
static void
update_image_surface (GthImageRotator *self)
{
GtkAllocation allocation;
cairo_surface_t *image;
int max_size;
int width;
int height;
cairo_surface_t *preview_image;
if (self->priv->preview_image != NULL) {
cairo_surface_destroy (self->priv->preview_image);
self->priv->preview_image = NULL;
}
image = gth_image_viewer_get_current_image (GTH_IMAGE_VIEWER (self->priv->viewer));
if (image == NULL)
return;
self->priv->original_width = cairo_image_surface_get_width (image);
self->priv->original_height = cairo_image_surface_get_height (image);
width = self->priv->original_width;
height = self->priv->original_height;
gtk_widget_get_allocation (GTK_WIDGET (self->priv->viewer), &allocation);
max_size = MAX (allocation.width, allocation.height) / G_SQRT2 + 2;
if (scale_keeping_ratio (&width, &height, max_size, max_size, FALSE))
preview_image = _cairo_image_surface_scale_bilinear (image, width, height);
else
preview_image = cairo_surface_reference (image);
self->priv->preview_zoom = (double) width / self->priv->original_width;
self->priv->preview_image = preview_image;
self->priv->preview_image_area.width = width;
self->priv->preview_image_area.height = height;
self->priv->preview_image_area.x = MAX ((allocation.width - self->priv->preview_image_area.width) / 2 - 0.5, 0);
self->priv->preview_image_area.y = MAX ((allocation.height - self->priv->preview_image_area.height) / 2 - 0.5, 0);
_gth_image_rotator_update_tranformation_matrix (self);
}
static void
gth_file_tool_adjust_contrast_activate (GthFileTool *base)
{
GtkWidget *window;
GtkWidget *viewer_page;
GtkWidget *viewer;
cairo_surface_t *image;
AdjustContrastData *adjust_contrast_data;
GthTask *task;
window = gth_file_tool_get_window (base);
viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
return;
viewer = gth_image_viewer_page_get_image_viewer (GTH_IMAGE_VIEWER_PAGE (viewer_page));
image = gth_image_viewer_get_current_image (GTH_IMAGE_VIEWER (viewer));
if (image == NULL)
return;
adjust_contrast_data = g_new0 (AdjustContrastData, 1);
adjust_contrast_data->viewer_page = g_object_ref (viewer_page);
adjust_contrast_data->source = cairo_surface_reference (image);
adjust_contrast_data->lowest = NULL;
adjust_contrast_data->highest = NULL;
adjust_contrast_data->factor = NULL;
task = gth_image_task_new (_("Applying changes"),
NULL,
adjust_contrast_exec,
adjust_contrast_after,
adjust_contrast_data,
adjust_contrast_data_free);
g_signal_connect (task,
"completed",
G_CALLBACK (image_task_completed_cb),
base);
gth_browser_exec_task (GTH_BROWSER (window), task, FALSE);
}
static void
gth_file_tool_rotate_left_activate (GthFileTool *base)
{
GtkWidget *window;
GtkWidget *viewer_page;
GtkWidget *viewer;
cairo_surface_t *old_image;
cairo_surface_t *new_image;
window = gth_file_tool_get_window (base);
viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
return;
viewer = gth_image_viewer_page_get_image_viewer (GTH_IMAGE_VIEWER_PAGE (viewer_page));
old_image = gth_image_viewer_get_current_image (GTH_IMAGE_VIEWER (viewer));
if (old_image == NULL)
return;
new_image = _cairo_image_surface_transform (old_image, GTH_TRANSFORM_ROTATE_270);
gth_image_viewer_page_set_image (GTH_IMAGE_VIEWER_PAGE (viewer_page), new_image, TRUE);
cairo_surface_destroy (new_image);
}
static GtkWidget *
gth_file_tool_sharpen_get_options (GthFileTool *base)
{
GthFileToolSharpen *self;
GtkWidget *window;
GtkWidget *viewer_page;
GtkWidget *viewer;
GtkWidget *options;
GtkWidget *image_navigator;
self = (GthFileToolSharpen *) base;
window = gth_file_tool_get_window (base);
viewer_page = gth_browser_get_viewer_page (GTH_BROWSER (window));
if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
return NULL;
cairo_surface_destroy (self->priv->source);
cairo_surface_destroy (self->priv->destination);
viewer = gth_image_viewer_page_get_image_viewer (GTH_IMAGE_VIEWER_PAGE (viewer_page));
self->priv->source = cairo_surface_reference (gth_image_viewer_get_current_image (GTH_IMAGE_VIEWER (viewer)));
if (self->priv->source == NULL)
return NULL;
self->priv->destination = NULL;
self->priv->first_allocation = TRUE;
self->priv->builder = _gtk_builder_new_from_file ("sharpen-options.ui", "file_tools");
options = _gtk_builder_get_widget (self->priv->builder, "options");
gtk_widget_show (options);
self->priv->preview = gth_image_viewer_new ();
gth_image_viewer_set_reset_scrollbars (GTH_IMAGE_VIEWER (self->priv->preview), FALSE);
gth_image_viewer_set_fit_mode (GTH_IMAGE_VIEWER (self->priv->preview), GTH_FIT_NONE);
gth_image_viewer_set_zoom_change (GTH_IMAGE_VIEWER (self->priv->preview), GTH_ZOOM_CHANGE_KEEP_PREV);
gth_image_viewer_set_zoom (GTH_IMAGE_VIEWER (self->priv->preview), 1.0);
gth_image_viewer_enable_zoom_with_keys (GTH_IMAGE_VIEWER (self->priv->preview), FALSE);
gth_image_viewer_set_surface (GTH_IMAGE_VIEWER (self->priv->preview), self->priv->source, -1, -1);
image_navigator = gth_image_navigator_new (GTH_IMAGE_VIEWER (self->priv->preview));
gtk_widget_show_all (image_navigator);
gtk_box_pack_start (GTK_BOX (GET_WIDGET ("preview_hbox")), image_navigator, TRUE, TRUE, 0);
self->priv->amount_adj = gth_color_scale_label_new (GET_WIDGET ("amount_hbox"),
GTK_LABEL (GET_WIDGET ("amount_label")),
GTH_COLOR_SCALE_DEFAULT,
DEFAULT_AMOUNT, 0.0, 500.0, 1.0, 1.0, "%.0f");
self->priv->radius_adj = gth_color_scale_label_new (GET_WIDGET ("radius_hbox"),
GTK_LABEL (GET_WIDGET ("radius_label")),
GTH_COLOR_SCALE_DEFAULT,
DEFAULT_RADIUS, 0.0, 10.0, 1.0, 1.0, "%.0f");
self->priv->threshold_adj = gth_color_scale_label_new (GET_WIDGET ("threshold_hbox"),
GTK_LABEL (GET_WIDGET ("threshold_label")),
GTH_COLOR_SCALE_DEFAULT,
DEFAULT_THRESHOLD, 0.0, 255.0, 1.0, 1.0, "%.0f");
g_signal_connect (GET_WIDGET ("ok_button"),
"clicked",
G_CALLBACK (ok_button_clicked_cb),
self);
g_signal_connect_swapped (GET_WIDGET ("cancel_button"),
"clicked",
G_CALLBACK (gth_file_tool_cancel),
self);
g_signal_connect (GET_WIDGET ("reset_button"),
"clicked",
G_CALLBACK (reset_button_clicked_cb),
self);
g_signal_connect (G_OBJECT (self->priv->radius_adj),
"value-changed",
G_CALLBACK (value_changed_cb),
self);
g_signal_connect (G_OBJECT (self->priv->amount_adj),
"value-changed",
G_CALLBACK (value_changed_cb),
self);
g_signal_connect (G_OBJECT (self->priv->threshold_adj),
"value-changed",
G_CALLBACK (value_changed_cb),
self);
g_signal_connect (GTH_IMAGE_VIEWER (self->priv->preview)->hadj,
"value-changed",
G_CALLBACK (value_changed_cb),
self);
g_signal_connect (GTH_IMAGE_VIEWER (self->priv->preview)->vadj,
"value-changed",
G_CALLBACK (value_changed_cb),
self);
g_signal_connect (GET_WIDGET ("preview_checkbutton"),
"clicked",
G_CALLBACK (preview_checkbutton_toggled_cb),
self);
g_signal_connect_after (self->priv->preview,
"size-allocate",
G_CALLBACK (preview_size_allocate_cb),
self);
return options;
}
