static void
gimp_cage_tool_cursor_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (tool);
GimpCageOptions *options = GIMP_CAGE_TOOL_GET_OPTIONS (ct);
GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_PLUS;
if (tool->display)
{
if (ct->hovering_handle != -1)
{
modifier = GIMP_CURSOR_MODIFIER_MOVE;
}
else if (ct->hovering_edge != -1 && options->cage_mode == GIMP_CAGE_MODE_CAGE_CHANGE)
{
modifier = GIMP_CURSOR_MODIFIER_PLUS;
}
else
{
if (gimp_cage_tool_is_complete (ct))
modifier = GIMP_CURSOR_MODIFIER_BAD;
}
}
gimp_tool_control_set_cursor_modifier (tool->control, modifier);
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
}
static void
gimp_cage_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (tool);
GimpCageOptions *options = GIMP_CAGE_TOOL_GET_OPTIONS (ct);
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
ct->cursor_x = coords->x;
ct->cursor_y = coords->y;
switch (ct->tool_state)
{
case CAGE_STATE_MOVE_HANDLE:
case CAGE_STATE_CLOSING:
case DEFORM_STATE_MOVE_HANDLE:
gimp_cage_config_add_displacement (ct->config,
options->cage_mode,
ct->cursor_x - ct->movement_start_x,
ct->cursor_y - ct->movement_start_y);
break;
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
static void
gimp_cage_tool_oper_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (tool);
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool);
if (ct->config)
{
ct->hovering_handle = gimp_cage_tool_is_on_handle (ct,
draw_tool,
display,
coords->x,
coords->y,
GIMP_TOOL_HANDLE_SIZE_CIRCLE);
ct->hovering_edge = gimp_cage_tool_is_on_edge (ct,
coords->x,
coords->y,
GIMP_TOOL_HANDLE_SIZE_CIRCLE);
}
gimp_draw_tool_pause (draw_tool);
ct->cursor_x = coords->x;
ct->cursor_y = coords->y;
gimp_draw_tool_resume (draw_tool);
}
static gboolean
gimp_cage_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (tool);
switch (kevent->keyval)
{
case GDK_KEY_BackSpace:
if (! ct->cage_complete && ct->tool_state == CAGE_STATE_WAIT)
{
gimp_cage_tool_remove_last_handle (ct);
}
else if (ct->cage_complete && ct->tool_state == CAGE_STATE_WAIT)
{
gimp_cage_config_remove_selected_points(ct->config);
/* if the cage have less than 3 handles, we reopen it */
if (gimp_cage_config_get_n_points(ct->config) <= 2)
ct->cage_complete = FALSE;
}
return TRUE;
case GDK_KEY_Return:
case GDK_KEY_KP_Enter:
case GDK_KEY_ISO_Enter:
if (ct->cage_complete == FALSE && gimp_cage_config_get_n_points (ct->config) > 2)
{
g_object_set (gimp_tool_get_options (tool),
"cage-mode", GIMP_CAGE_MODE_DEFORM,
NULL);
}
else if (ct->tool_state == DEFORM_STATE_WAIT)
{
gimp_tool_control_push_preserve (tool->control, TRUE);
gimp_image_map_commit (ct->image_map);
g_object_unref (ct->image_map);
ct->image_map = NULL;
gimp_tool_control_pop_preserve (tool->control);
gimp_image_flush (gimp_display_get_image (display));
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
}
break;
case GDK_KEY_Escape:
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
return TRUE;
default:
break;
}
return FALSE;
}
static void
gimp_cage_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (tool);
switch (action)
{
case GIMP_TOOL_ACTION_PAUSE:
case GIMP_TOOL_ACTION_RESUME:
break;
case GIMP_TOOL_ACTION_HALT:
if (ct->config)
{
g_object_unref (ct->config);
ct->config = NULL;
}
if (ct->coef)
{
g_object_unref (ct->coef);
ct->coef = NULL;
}
if (ct->render_node)
{
g_object_unref (ct->render_node);
ct->render_node = NULL;
ct->coef_node = NULL;
ct->cage_node = NULL;
}
if (ct->image_map)
{
gimp_tool_control_push_preserve (tool->control, TRUE);
gimp_image_map_abort (ct->image_map);
g_object_unref (ct->image_map);
ct->image_map = NULL;
gimp_tool_control_pop_preserve (tool->control);
gimp_image_flush (gimp_display_get_image (tool->display));
}
tool->display = NULL;
g_object_set (gimp_tool_get_options (tool),
"cage-mode", GIMP_CAGE_MODE_CAGE_CHANGE,
NULL);
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static gboolean
gimp_cage_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (tool);
switch (kevent->keyval)
{
case GDK_KEY_BackSpace:
if (ct->tool_state == CAGE_STATE_WAIT)
{
gimp_cage_tool_remove_last_handle (ct);
}
else if (ct->tool_state == DEFORM_STATE_WAIT)
{
gimp_cage_config_remove_selected_points(ct->config);
/* if the cage have less than 3 handles, we reopen it */
if (gimp_cage_config_get_n_points(ct->config) <= 2)
{
ct->tool_state = CAGE_STATE_WAIT;
}
gimp_cage_tool_compute_coef (ct);
gimp_cage_tool_render_node_update (ct);
}
return TRUE;
case GDK_KEY_Return:
case GDK_KEY_KP_Enter:
case GDK_KEY_ISO_Enter:
if (! gimp_cage_tool_is_complete (ct) &&
gimp_cage_config_get_n_points (ct->config) > 2)
{
g_object_set (gimp_tool_get_options (tool),
"cage-mode", GIMP_CAGE_MODE_DEFORM,
NULL);
}
else if (ct->tool_state == DEFORM_STATE_WAIT)
{
gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, display);
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
}
return TRUE;
case GDK_KEY_Escape:
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
return TRUE;
default:
break;
}
return FALSE;
}
static void
gimp_cage_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (tool);
switch (action)
{
case GIMP_TOOL_ACTION_PAUSE:
case GIMP_TOOL_ACTION_RESUME:
break;
case GIMP_TOOL_ACTION_HALT:
gimp_cage_tool_halt (ct);
break;
case GIMP_TOOL_ACTION_COMMIT:
gimp_cage_tool_commit (ct);
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
gimp_cage_tool_draw (GimpDrawTool *draw_tool)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (draw_tool);
GimpCageOptions *options = GIMP_CAGE_TOOL_GET_OPTIONS (ct);
GimpCageConfig *config = ct->config;
GimpCanvasGroup *stroke_group;
gint n_vertices;
gint i;
GimpHandleType handle;
n_vertices = gimp_cage_config_get_n_points (config);
if (n_vertices == 0)
return;
if (ct->tool_state == CAGE_STATE_INIT)
return;
stroke_group = gimp_draw_tool_add_stroke_group (draw_tool);
gimp_draw_tool_push_group (draw_tool, stroke_group);
/* If needed, draw line to the cursor. */
if (! gimp_cage_tool_is_complete (ct))
{
GimpVector2 last_point;
last_point = gimp_cage_config_get_point_coordinate (ct->config,
options->cage_mode,
n_vertices - 1);
gimp_draw_tool_add_line (draw_tool,
last_point.x + ct->offset_x,
last_point.y + ct->offset_y,
ct->cursor_x,
ct->cursor_y);
}
gimp_draw_tool_pop_group (draw_tool);
/* Draw the cage with handles. */
for (i = 0; i < n_vertices; i++)
{
GimpVector2 point1, point2;
point1 = gimp_cage_config_get_point_coordinate (ct->config,
options->cage_mode,
i);
point1.x += ct->offset_x;
point1.y += ct->offset_y;
if (i > 0 || gimp_cage_tool_is_complete (ct))
{
gint index_point2;
if (i == 0)
index_point2 = n_vertices - 1;
else
index_point2 = i - 1;
point2 = gimp_cage_config_get_point_coordinate (ct->config,
options->cage_mode,
index_point2);
point2.x += ct->offset_x;
point2.y += ct->offset_y;
gimp_draw_tool_push_group (draw_tool, stroke_group);
gimp_draw_tool_add_line (draw_tool,
point1.x,
point1.y,
point2.x,
point2.y);
gimp_draw_tool_pop_group (draw_tool);
}
if (i == ct->hovering_handle)
handle = GIMP_HANDLE_FILLED_CIRCLE;
else
handle = GIMP_HANDLE_CIRCLE;
gimp_draw_tool_add_handle (draw_tool,
handle,
point1.x,
point1.y,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_HANDLE_ANCHOR_CENTER);
if (gimp_cage_config_point_is_selected (ct->config, i))
{
gimp_draw_tool_add_handle (draw_tool,
GIMP_HANDLE_SQUARE,
point1.x,
point1.y,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_HANDLE_ANCHOR_CENTER);
}
}
if (ct->tool_state == DEFORM_STATE_SELECTING ||
ct->tool_state == CAGE_STATE_SELECTING)
{
gimp_draw_tool_add_rectangle (draw_tool,
FALSE,
MIN (ct->selection_start_x, ct->cursor_x),
MIN (ct->selection_start_y, ct->cursor_y),
abs (ct->selection_start_x - ct->cursor_x),
abs (ct->selection_start_y - ct->cursor_y));
}
}
void
gimp_cage_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (tool);
GimpCageOptions *options = GIMP_CAGE_TOOL_GET_OPTIONS (ct);
gimp_draw_tool_pause (GIMP_DRAW_TOOL (ct));
gimp_tool_control_halt (tool->control);
if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
{
/* Cancelling */
switch (ct->tool_state)
{
case CAGE_STATE_CLOSING:
ct->tool_state = CAGE_STATE_WAIT;
break;
case CAGE_STATE_MOVE_HANDLE:
gimp_cage_config_remove_last_cage_point (ct->config);
ct->tool_state = CAGE_STATE_WAIT;
break;
case CAGE_STATE_SELECTING:
ct->tool_state = CAGE_STATE_WAIT;
break;
case DEFORM_STATE_MOVE_HANDLE:
gimp_cage_tool_image_map_update (ct);
ct->tool_state = DEFORM_STATE_WAIT;
break;
case DEFORM_STATE_SELECTING:
ct->tool_state = DEFORM_STATE_WAIT;
break;
}
gimp_cage_config_reset_displacement (ct->config);
}
else
{
/* Normal release */
switch (ct->tool_state)
{
case CAGE_STATE_CLOSING:
ct->dirty_coef = TRUE;
gimp_cage_config_commit_displacement (ct->config);
if (release_type == GIMP_BUTTON_RELEASE_CLICK)
g_object_set (options, "cage-mode", GIMP_CAGE_MODE_DEFORM, NULL);
break;
case CAGE_STATE_MOVE_HANDLE:
ct->dirty_coef = TRUE;
ct->tool_state = CAGE_STATE_WAIT;
gimp_cage_config_commit_displacement (ct->config);
break;
case CAGE_STATE_SELECTING:
{
GeglRectangle area = { MIN (ct->selection_start_x, coords->x) - ct->offset_x,
MIN (ct->selection_start_y, coords->y) - ct->offset_y,
abs (ct->selection_start_x - coords->x),
abs (ct->selection_start_y - coords->y) };
if (state & GDK_SHIFT_MASK)
{
gimp_cage_config_select_add_area (ct->config,
GIMP_CAGE_MODE_CAGE_CHANGE,
area);
}
else
{
gimp_cage_config_select_area (ct->config,
GIMP_CAGE_MODE_CAGE_CHANGE,
area);
}
ct->tool_state = CAGE_STATE_WAIT;
}
break;
case DEFORM_STATE_MOVE_HANDLE:
ct->tool_state = DEFORM_STATE_WAIT;
gimp_cage_config_commit_displacement (ct->config);
gimp_cage_tool_image_map_update (ct);
break;
case DEFORM_STATE_SELECTING:
{
GeglRectangle area = { MIN (ct->selection_start_x, coords->x) - ct->offset_x,
MIN (ct->selection_start_y, coords->y) - ct->offset_y,
abs (ct->selection_start_x - coords->x),
abs (ct->selection_start_y - coords->y) };
if (state & GDK_SHIFT_MASK)
{
gimp_cage_config_select_add_area (ct->config,
GIMP_CAGE_MODE_DEFORM, area);
}
else
{
gimp_cage_config_select_area (ct->config,
GIMP_CAGE_MODE_DEFORM, area);
}
ct->tool_state = DEFORM_STATE_WAIT;
}
break;
}
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
static void
gimp_cage_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type,
GimpDisplay *display)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (tool);
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool);
gint handle = -1;
gint edge = -1;
if (display != tool->display)
gimp_cage_tool_start (ct, display);
gimp_tool_control_activate (tool->control);
if (ct->config)
{
handle = gimp_cage_tool_is_on_handle (ct,
draw_tool,
display,
coords->x,
coords->y,
GIMP_TOOL_HANDLE_SIZE_CIRCLE);
edge = gimp_cage_tool_is_on_edge (ct,
coords->x,
coords->y,
GIMP_TOOL_HANDLE_SIZE_CIRCLE);
}
ct->movement_start_x = coords->x;
ct->movement_start_y = coords->y;
switch (ct->tool_state)
{
case CAGE_STATE_INIT:
/* No handle yet, we add the first one and swith the tool to
* moving handle state.
*/
gimp_cage_config_add_cage_point (ct->config,
coords->x - ct->offset_x,
coords->y - ct->offset_y);
gimp_cage_config_select_point (ct->config, 0);
ct->tool_state = CAGE_STATE_MOVE_HANDLE;
break;
case CAGE_STATE_WAIT:
if (handle == -1 && edge <= 0)
{
/* User clicked on the background, we add a new handle
* and move it
*/
gimp_cage_config_add_cage_point (ct->config,
coords->x - ct->offset_x,
coords->y - ct->offset_y);
gimp_cage_config_select_point (ct->config,
gimp_cage_config_get_n_points (ct->config) - 1);
ct->tool_state = CAGE_STATE_MOVE_HANDLE;
}
else if (handle == 0 && gimp_cage_config_get_n_points (ct->config) > 2)
{
/* User clicked on the first handle, we wait for
* release for closing the cage and switching to
* deform if possible
*/
gimp_cage_config_select_point (ct->config, 0);
ct->tool_state = CAGE_STATE_CLOSING;
}
else if (handle >= 0)
{
/* User clicked on a handle, so we move it */
if (state & GDK_SHIFT_MASK)
{
/* Multiple selection */
gimp_cage_config_toggle_point_selection (ct->config, handle);
}
else
{
/* New selection */
if (! gimp_cage_config_point_is_selected (ct->config, handle))
{
gimp_cage_config_select_point (ct->config, handle);
}
}
ct->tool_state = CAGE_STATE_MOVE_HANDLE;
}
else if (edge > 0)
{
/* User clicked on an edge, we add a new handle here and select it */
gimp_cage_config_insert_cage_point (ct->config, edge, coords->x, coords->y);
gimp_cage_config_select_point (ct->config, edge);
ct->tool_state = CAGE_STATE_MOVE_HANDLE;
}
break;
case DEFORM_STATE_WAIT:
if (handle == -1)
{
/* User clicked on the background, we start a rubber band
* selection
*/
ct->selection_start_x = coords->x;
ct->selection_start_y = coords->y;
ct->tool_state = DEFORM_STATE_SELECTING;
}
if (handle >= 0)
{
/* User clicked on a handle, so we move it */
if (state & GDK_SHIFT_MASK)
{
/* Multiple selection */
gimp_cage_config_toggle_point_selection (ct->config, handle);
}
else
{
/* New selection */
if (! gimp_cage_config_point_is_selected (ct->config, handle))
{
gimp_cage_config_select_point (ct->config, handle);
}
}
ct->tool_state = DEFORM_STATE_MOVE_HANDLE;
}
break;
}
}
static void
gimp_cage_tool_options_notify (GimpTool *tool,
GimpToolOptions *options,
const GParamSpec *pspec)
{
GimpCageTool *ct = GIMP_CAGE_TOOL (tool);
GIMP_TOOL_CLASS (parent_class)->options_notify (tool, options, pspec);
if (! tool->display)
return;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
if (strcmp (pspec->name, "cage-mode") == 0)
{
GimpCageMode mode;
g_object_get (options,
"cage-mode", &mode,
NULL);
if (mode == GIMP_CAGE_MODE_DEFORM)
{
/* switch to deform mode */
gimp_cage_config_reset_displacement (ct->config);
gimp_cage_config_reverse_cage_if_needed (ct->config);
gimp_tool_push_status (tool, tool->display,
_("Press ENTER to commit the transform"));
ct->tool_state = DEFORM_STATE_WAIT;
if (! ct->render_node)
{
gimp_cage_tool_create_render_node (ct);
}
if (ct->dirty_coef)
{
gimp_cage_tool_compute_coef (ct);
gimp_cage_tool_render_node_update (ct);
}
if (! ct->image_map)
{
GimpImage *image = gimp_display_get_image (tool->display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
gimp_cage_tool_create_image_map (ct, drawable);
}
gimp_cage_tool_image_map_update (ct);
}
else
{
/* switch to edit mode */
gimp_image_map_abort (ct->image_map);
gimp_tool_pop_status (tool, tool->display);
ct->tool_state = CAGE_STATE_WAIT;
}
}
else if (strcmp (pspec->name, "fill-plain-color") == 0)
{
gimp_cage_tool_render_node_update (ct);
gimp_cage_tool_image_map_update (ct);
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}