/* Object creation handler: button press event. */
/*****************************************************************************/
void
-gl_view_box_create_button_press_event (glView *view,
- gdouble x,
- gdouble y)
+gl_view_box_create_button_press_event (glView *view,
+ gdouble x,
+ gdouble y)
{
GObject *object;
/* Object creation handler: motion event. */
/*****************************************************************************/
void
-gl_view_box_create_motion_event (glView *view,
- gdouble x,
- gdouble y)
+gl_view_box_create_motion_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean square)
{
- gdouble w, h;
-
- gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object),
- MIN (x, view->create_x0), MIN (y, view->create_y0),
- FALSE);
-
- w = MAX (x, view->create_x0) - MIN (x, view->create_x0);
- h = MAX (y, view->create_y0) - MIN (y, view->create_y0);
- gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h, FALSE);
+ gdouble w, h;
+
+ w = ABS (x - view->create_x0);
+ h = ABS (y - view->create_y0);
+ if (square)
+ if (w < h) {
+ h = w;
+ y = (y < view->create_y0 ? view->create_y0 - h : view->create_y0 + h);
+ } else {
+ w = h;
+ x = (x < view->create_x0 ? view->create_x0 - w : view->create_x0 + w);
+ }
+
+ gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object),
+ MIN (x, view->create_x0), MIN (y, view->create_y0),
+ FALSE);
+ gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h, FALSE);
}
/* Object creation handler: button relesase event. */
/*****************************************************************************/
void
-gl_view_box_create_button_release_event (glView *view,
- gdouble x,
- gdouble y)
+gl_view_box_create_button_release_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean square)
{
- gdouble w, h;
-
- if ((view->create_x0 == x) && (view->create_y0 == y)) {
- x = view->create_x0 + 36.0;
- y = view->create_y0 + 36.0;
- }
- gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object),
- MIN (x, view->create_x0), MIN (y, view->create_y0),
- FALSE);
-
- w = MAX (x, view->create_x0) - MIN (x, view->create_x0);
- h = MAX (y, view->create_y0) - MIN (y, view->create_y0);
- gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h, FALSE);
+ if ((view->create_x0 == x) && (view->create_y0 == y)) {
+ x = view->create_x0 + 36.0;
+ y = view->create_y0 + 36.0;
+ }
+
+ gl_view_box_create_motion_event (view, x, y, square);
}
GdkCursor *gl_view_box_get_create_cursor (void);
/* Object creation handlers. */
-void gl_view_box_create_button_press_event (glView *view,
- gdouble x,
- gdouble y);
-
-void gl_view_box_create_motion_event (glView *view,
- gdouble x,
- gdouble y);
-
-void gl_view_box_create_button_release_event (glView *view,
- gdouble x,
- gdouble y);
+void gl_view_box_create_button_press_event (glView *view,
+ gdouble x,
+ gdouble y);
+
+void gl_view_box_create_motion_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean square);
+
+void gl_view_box_create_button_release_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean square);
G_END_DECLS
/* Object creation handler: button press event. */
/*****************************************************************************/
void
-gl_view_ellipse_create_button_press_event (glView *view,
- gdouble x,
- gdouble y)
+gl_view_ellipse_create_button_press_event (glView *view,
+ gdouble x,
+ gdouble y)
{
GObject *object;
/* Object creation handler: motion event. */
/*****************************************************************************/
void
-gl_view_ellipse_create_motion_event (glView *view,
- gdouble x,
- gdouble y)
+gl_view_ellipse_create_motion_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean circle)
{
- gdouble w, h;
-
- gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object),
- MIN (x, view->create_x0), MIN (y, view->create_y0),
- FALSE);
-
- w = MAX (x, view->create_x0) - MIN (x, view->create_x0);
- h = MAX (y, view->create_y0) - MIN (y, view->create_y0);
- gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h, FALSE);
+ gdouble w, h;
+
+ w = ABS (x - view->create_x0);
+ h = ABS (y - view->create_y0);
+ if (circle)
+ if (w < h) {
+ h = w;
+ y = (y < view->create_y0 ? view->create_y0 - h : view->create_y0 + h);
+ } else {
+ w = h;
+ x = (x < view->create_x0 ? view->create_x0 - w : view->create_x0 + w);
+ }
+
+ gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object),
+ MIN (x, view->create_x0), MIN (y, view->create_y0),
+ FALSE);
+ gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h, FALSE);
}
/* Object creation handler: button relesase event. */
/*****************************************************************************/
void
-gl_view_ellipse_create_button_release_event (glView *view,
- gdouble x,
- gdouble y)
+gl_view_ellipse_create_button_release_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean circle)
{
- gdouble w, h;
-
- if ((view->create_x0 == x) && (view->create_y0 == y)) {
- x = view->create_x0 + 36.0;
- y = view->create_y0 + 36.0;
- }
- gl_label_object_set_position (GL_LABEL_OBJECT(view->create_object),
- MIN (x, view->create_x0), MIN (y, view->create_y0),
- FALSE);
-
- w = MAX (x, view->create_x0) - MIN (x, view->create_x0);
- h = MAX (y, view->create_y0) - MIN (y, view->create_y0);
- gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h, FALSE);
+ if ((view->create_x0 == x) && (view->create_y0 == y)) {
+ x = view->create_x0 + 36.0;
+ y = view->create_y0 + 36.0;
+ }
+
+ gl_view_ellipse_create_motion_event (view, x, y, circle);
}
GdkCursor *gl_view_ellipse_get_create_cursor (void);
/* Object creation handlers. */
-void gl_view_ellipse_create_button_press_event (glView *view,
- gdouble x,
- gdouble y);
-
-void gl_view_ellipse_create_motion_event (glView *view,
- gdouble x,
- gdouble y);
-
-void gl_view_ellipse_create_button_release_event (glView *view,
- gdouble x,
- gdouble y);
+void gl_view_ellipse_create_button_press_event (glView *view,
+ gdouble x,
+ gdouble y);
+
+void gl_view_ellipse_create_motion_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean circle);
+
+void gl_view_ellipse_create_button_release_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean circle);
G_END_DECLS
/* Object creation handler: button press event. */
/*****************************************************************************/
void
-gl_view_line_create_button_press_event (glView *view,
- gdouble x,
- gdouble y)
+gl_view_line_create_button_press_event (glView *view,
+ gdouble x,
+ gdouble y)
{
GObject *object;
/* Object creation handler: motion event. */
/*****************************************************************************/
void
-gl_view_line_create_motion_event (glView *view,
- gdouble x,
- gdouble y)
+gl_view_line_create_motion_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean fixed_angle)
{
- gdouble w, h;
-
- w = x - view->create_x0;
- h = y - view->create_y0;
- gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h, FALSE);
+ gdouble w, h;
+
+ w = x - view->create_x0;
+ h = y - view->create_y0;
+
+ if (fixed_angle && /* step by 45 degree */
+ h != 0) { /* avoid divide by 0 */
+ if (ABS (w) / ABS (h) < 0.414213562) /* precalculated tangent of 22,5 degree */
+ w = 0; /* horizontal line */
+ else if (ABS (w) / ABS (h) > 2.414213562) /* precalculated tangent of 67,5 degree */
+ h = 0; /* vertical line */
+ else /* diagonal line */
+ if (w < h)
+ h = SIGN_AND_VALUE(h, w);
+ else
+ w = SIGN_AND_VALUE(w, h);
+ }
+
+ gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h, FALSE);
}
/* Object creation handler: button relesase event. */
/*****************************************************************************/
void
-gl_view_line_create_button_release_event (glView *view,
- gdouble x,
- gdouble y)
+gl_view_line_create_button_release_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean fixed_angle)
{
- gdouble w, h;
-
- if ((view->create_x0 == x) && (view->create_y0 == y)) {
- x = view->create_x0 + 36.0;
- y = view->create_y0 + 36.0;
- }
- w = x - view->create_x0;
- h = y - view->create_y0;
- gl_label_object_set_size (GL_LABEL_OBJECT(view->create_object), w, h, FALSE);
+ if ((view->create_x0 == x) && (view->create_y0 == y)) {
+ x = view->create_x0 + 36.0;
+ y = view->create_y0 + 36.0;
+ }
+
+ gl_view_line_create_motion_event (view, x, y, fixed_angle);
}
G_BEGIN_DECLS
+/* Macro for value with sign from first argument and absolute value from second argument */
+/* It is used in diagonal lines calculations */
+#define SIGN_AND_VALUE(var_for_sign, var_for_val) (var_for_sign > 0 ? (var_for_val < 0 ? -var_for_val : var_for_val) : (var_for_val < 0 ? var_for_val : -var_for_val))
/* cursor for creating line objects */
GdkCursor *gl_view_line_get_create_cursor (void);
/* Object creation handlers. */
-void gl_view_line_create_button_press_event (glView *view,
- gdouble x,
- gdouble y);
+void gl_view_line_create_button_press_event (glView *view,
+ gdouble x,
+ gdouble y);
-void gl_view_line_create_motion_event (glView *view,
- gdouble x,
- gdouble y);
+void gl_view_line_create_motion_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean fixed_angle);
-void gl_view_line_create_button_release_event (glView *view,
- gdouble x,
- gdouble y);
+void gl_view_line_create_button_release_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean fixed_angle);
G_END_DECLS
static gboolean key_press_event_cb (glView *view,
GdkEventKey *event);
+static void move_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean keep_direction);
+
static void resize_event (glView *view,
cairo_t *cr,
gdouble x,
- gdouble y);
+ gdouble y,
+ gboolean keep_ratio,
+ gboolean keep_direction);
/****************************************************************************/
/* Boilerplate Object stuff. */
break;
case GL_VIEW_ARROW_MOVE:
- gl_label_move_selection (view->label,
- (x - view->move_last_x),
- (y - view->move_last_y));
- view->move_last_x = x;
- view->move_last_y = y;
+ move_event (view, x, y, event->state & GDK_SHIFT_MASK);
break;
case GL_VIEW_ARROW_RESIZE:
- resize_event (view, cr, event->x, event->y);
+ resize_event (view, cr, event->x, event->y, event->state & GDK_CONTROL_MASK, event->state & GDK_SHIFT_MASK);
break;
default:
switch (view->create_type)
{
case GL_LABEL_OBJECT_BOX:
- gl_view_box_create_motion_event (view, x, y);
+ gl_view_box_create_motion_event (view, x, y, event->state & GDK_CONTROL_MASK);
break;
case GL_LABEL_OBJECT_ELLIPSE:
- gl_view_ellipse_create_motion_event (view, x, y);
+ gl_view_ellipse_create_motion_event (view, x, y, event->state & GDK_CONTROL_MASK);
break;
case GL_LABEL_OBJECT_LINE:
- gl_view_line_create_motion_event (view, x, y);
+ gl_view_line_create_motion_event (view, x, y, event->state & GDK_SHIFT_MASK);
break;
case GL_LABEL_OBJECT_IMAGE:
gl_view_image_create_motion_event (view, x, y);
{
view->resize_object = object;
view->resize_handle = handle;
- view->resize_honor_aspect = event->state & GDK_CONTROL_MASK;
+ gl_label_object_get_size (object, &(view->saved_w), &(view->saved_h));
+ view->saved_ratio = view->saved_h / view->saved_w;
+ view->saved_x = x;
+ view->saved_y = y;
view->state = GL_VIEW_ARROW_RESIZE;
}
}
view->move_last_x = x;
view->move_last_y = y;
+ view->saved_x = x;
+ view->saved_y = y;
view->state = GL_VIEW_ARROW_MOVE;
}
switch (view->create_type)
{
case GL_LABEL_OBJECT_BOX:
- gl_view_box_create_button_release_event (view, x, y);
+ gl_view_box_create_button_release_event (view, x, y, event->state & GDK_CONTROL_MASK);
break;
case GL_LABEL_OBJECT_ELLIPSE:
- gl_view_ellipse_create_button_release_event (view, x, y);
+ gl_view_ellipse_create_button_release_event (view, x, y, event->state & GDK_CONTROL_MASK);
break;
case GL_LABEL_OBJECT_LINE:
- gl_view_line_create_button_release_event (view, x, y);
+ gl_view_line_create_button_release_event (view, x, y, event->state & GDK_CONTROL_MASK);
break;
case GL_LABEL_OBJECT_IMAGE:
gl_view_image_create_button_release_event (view, x, y);
break;
default:
return FALSE;
-
+
}
}
return TRUE; /* We handled this or we were dragging. */
}
+/*---------------------------------------------------------------------------*/
+/* PRIVATE. Move object. */
+/*---------------------------------------------------------------------------*/
+static void
+move_event (glView *view,
+ gdouble x,
+ gdouble y,
+ gboolean keep_direction)
+{
+ gdouble delta_x, delta_y;
+
+ if (keep_direction)
+ {
+ /* Move only on one axis */
+ if (ABS (x - view->saved_x) > ABS (y - view->saved_y))
+ {
+ /* Move only on x axis */
+ delta_x = x - view->move_last_x;
+ view->move_last_x = x;
+ if (view->move_last_y == view->saved_y)
+ {
+ /* Already on origin y */
+ delta_y = 0;
+ }
+ else
+ {
+ /* Move back to origin y */
+ delta_y = view->saved_y - view->move_last_y;
+ view->move_last_y = view->saved_y;
+ }
+ }
+ else
+ {
+ /* Move only on y axis */
+ delta_y = y - view->move_last_y;
+ view->move_last_y = y;
+ if (view->move_last_x == view->saved_x)
+ {
+ /* Already on origin x */
+ delta_x = 0;
+ }
+ else
+ {
+ /* Move back to origin x */
+ delta_x = view->saved_x - view->move_last_x;
+ view->move_last_x = view->saved_x;
+ }
+ }
+ }
+ else
+ {
+ /* Normal move */
+ delta_x = x - view->move_last_x;
+ delta_y = y - view->move_last_y;
+ view->move_last_x = x;
+ view->move_last_y = y;
+ }
+
+ gl_label_move_selection (view->label, delta_x, delta_y);
+}
+
+
/*---------------------------------------------------------------------------*/
/* PRIVATE. Resize object. */
/*---------------------------------------------------------------------------*/
static void
-resize_event (glView *view,
- cairo_t *cr,
- gdouble x,
- gdouble y)
+resize_event (glView *view,
+ cairo_t *cr,
+ gdouble x,
+ gdouble y,
+ gboolean keep_ratio,
+ gboolean keep_direction)
{
cairo_matrix_t matrix;
gdouble x0, y0, x1, y1, x2, y2;
switch (view->resize_handle)
{
- case GL_LABEL_OBJECT_HANDLE_NW:
- w = MAX (x2 - x, 0);
- h = MAX (y2 - y, 0);
- break;
+ case GL_LABEL_OBJECT_HANDLE_NW:
+ w = MAX (x2 - x, 0);
+ h = MAX (y2 - y, 0);
+ if (keep_ratio)
+ {
+ if (h/w > view->saved_ratio)
+ w = h / view->saved_ratio;
+ else
+ h = w * view->saved_ratio;
+ }
+ break;
- case GL_LABEL_OBJECT_HANDLE_N:
- w = x2 - x1;
- h = MAX (y2 - y, 0);
- break;
+ case GL_LABEL_OBJECT_HANDLE_N:
+ h = MAX (y2 - y, 0);
+ if (keep_ratio)
+ w = h / view->saved_ratio;
+ else
+ w = view->saved_w;
+ x0 = ((x2 - x1) - w)/2;
+ break;
- case GL_LABEL_OBJECT_HANDLE_NE:
- w = MAX (x - x1, 0);
- h = MAX (y2 - y, 0);
- break;
+ case GL_LABEL_OBJECT_HANDLE_NE:
+ w = MAX (x - x1, 0);
+ h = MAX (y2 - y, 0);
+ if (keep_ratio)
+ {
+ if (h/w > view->saved_ratio)
+ w = h / view->saved_ratio;
+ else
+ h = w * view->saved_ratio;
+ }
+ break;
- case GL_LABEL_OBJECT_HANDLE_E:
- w = MAX (x - x1, 0);
- h = y2 - y1;
- break;
+ case GL_LABEL_OBJECT_HANDLE_E:
+ w = MAX (x - x1, 0);
+ if (keep_ratio)
+ h = w * view->saved_ratio;
+ else
+ h = view->saved_h;
+ y0 = ((y2 - y1) - h)/2;
+ break;
- case GL_LABEL_OBJECT_HANDLE_SE:
- w = MAX (x - x1, 0);
- h = MAX (y - y1, 0);
- break;
+ case GL_LABEL_OBJECT_HANDLE_SE:
+ w = MAX (x - x1, 0);
+ h = MAX (y - y1, 0);
+ if (keep_ratio)
+ {
+ if (h/w > view->saved_ratio)
+ w = h / view->saved_ratio;
+ else
+ h = w * view->saved_ratio;
+ }
+ break;
- case GL_LABEL_OBJECT_HANDLE_S:
- w = x2 - x1;
- h = MAX (y - y1, 0);
- break;
+ case GL_LABEL_OBJECT_HANDLE_S:
+ h = MAX (y - y1, 0);
+ if (keep_ratio)
+ w = h / view->saved_ratio;
+ else
+ w = view->saved_w;
+ x0 = ((x2 - x1) - w)/2;
+ break;
- case GL_LABEL_OBJECT_HANDLE_SW:
- w = MAX (x2 - x, 0);
- h = MAX (y - y1, 0);
- break;
+ case GL_LABEL_OBJECT_HANDLE_SW:
+ w = MAX (x2 - x, 0);
+ h = MAX (y - y1, 0);
+ if (keep_ratio)
+ {
+ if (h/w > view->saved_ratio)
+ w = h / view->saved_ratio;
+ else
+ h = w * view->saved_ratio;
+ }
+ break;
- case GL_LABEL_OBJECT_HANDLE_W:
- w = MAX (x2 - x, 0);
- h = y2 - y1;
- break;
- case GL_LABEL_OBJECT_HANDLE_P1:
- x1 = x;
- y1 = y;
- dx = (x2 - x);
- dy = (y2 - y);
- x0 = x0 + x1;
- y0 = y0 + y1;
- break;
+ case GL_LABEL_OBJECT_HANDLE_W:
+ w = MAX (x2 - x, 0);
+ if (keep_ratio && !keep_direction)
+ h = w * view->saved_ratio;
+ else
+ h = view->saved_h;
+ y0 = ((y2 - y1) - h)/2;
+ break;
- case GL_LABEL_OBJECT_HANDLE_P2:
- dx = x - x1;
- dy = y - y1;
- x0 = x0 + x1;
- y0 = y0 + y1;
- break;
+ case GL_LABEL_OBJECT_HANDLE_P1:
+ x1 = x;
+ y1 = y;
+ dx = (x2 - x);
+ dy = (y2 - y);
+ x0 = x0 + x1;
+ y0 = y0 + y1;
+ if (keep_ratio &&
+ !keep_direction) /* Keep direction with Shift has priority to keep aspect ratio with Ctrl */
+ {
+ if (dy/dx > view->saved_ratio)
+ {
+ dx = dy / view->saved_ratio;
+ x0 = x0 - (dx - (x2 - x));
+ }
+ else
+ {
+ dy = dx * view->saved_ratio;
+ y0 = y0 - (dy - (y2 - y));
+ }
+ }
+ else if (keep_direction &&
+ dy != 0) /*avoid div by 0*/
+ {
+ if (ABS (dx) / ABS (dy) < 0.414213562) /* precalculated tangent of 22,5 degree */
+ {
+ dx = 0; /* horizontal line */
+ x0 = x0 + (x2 - x);
+ }
+ else if (ABS (dx) / ABS (dy) > 2.414213562) /* precalculated tangent of 67,5 degree */
+ {
+ dy = 0; /* vertical line */
+ y0 = y0 + (y2 - y);
+ }
+ else /* diagonal line */
+ {
+ if (dx < dy)
+ {
+ dy = SIGN_AND_VALUE(dy, dx);
+ y0 = y0 - (dy - (y2 - y));
+ }
+ else
+ {
+ dx = SIGN_AND_VALUE(dx, dy);
+ x0 = x0 - (dx - (x2 - x));
+ }
+ }
+ }
+ break;
+
+ case GL_LABEL_OBJECT_HANDLE_P2:
+ dx = x - x1;
+ dy = y - y1;
+ if (keep_ratio && !keep_direction)
+ {
+ if (dy/dx > view->saved_ratio)
+ dx = dy / view->saved_ratio;
+ else
+ dy = dx * view->saved_ratio;
+ }
+ else if (keep_direction && dy != 0 /*avoid div by 0*/)
+ {
+ if (ABS (dx) / ABS (dy) < 0.414213562) /* precalculated tangent of 22,5 degree */
+ dx = 0; /* horizontal line */
+ else if (ABS (dx) / ABS (dy) > 2.414213562) /* precalculated tangent of 67,5 degree */
+ dy = 0; /* vertical line */
+ else /* diagonal line */
+ if (dx < dy)
+ dy = SIGN_AND_VALUE(dy, dx);//(dy < 0 ? -ABS (dx) : ABS (dx));
+ else
+ dx = SIGN_AND_VALUE(dx, dy);//(dx < 0 ? -ABS (dy) : ABS (dy));
+ }
+ x0 = x0 + x1;
+ y0 = y0 + y1;
+ break;
default:
g_print ("Invalid handle.\n"); /* Should not happen! */
if ( (view->resize_handle != GL_LABEL_OBJECT_HANDLE_P1) &&
(view->resize_handle != GL_LABEL_OBJECT_HANDLE_P2) )
{
- if ( view->resize_honor_aspect )
- {
- gl_label_object_set_size_honor_aspect (view->resize_object, w, h, TRUE);
- }
- else
- {
- gl_label_object_set_size (view->resize_object, w, h, TRUE);
- }
+ gl_label_object_set_size (view->resize_object, w, h, TRUE);
/*
* Query the new size in case it was constrained.
struct _glView {
- GtkVBox parent_widget;
-
- glLabel *label;
-
- GtkWidget *canvas;
- gdouble zoom;
- gboolean zoom_to_fit_flag;
- gdouble home_scale;
- gdouble x0, y0;
- gdouble w, h;
-
- gboolean update_scheduled_flag;
- gboolean grid_visible;
- gdouble grid_spacing;
-
- gboolean markup_visible;
-
- glViewMode mode;
- glLabelObjectType create_type;
- glViewState state;
- gboolean grabbed_flag;
-
- /* GL_VIEW_ARROW_MOVE state */
- gdouble move_last_x;
- gdouble move_last_y;
-
- /* GL_VIEW_ARROW_SELECT_REGION state */
- gboolean select_region_visible;
- glLabelRegion select_region;
-
- /* GL_VIEW_ARROW_RESIZE state */
- glLabelObject *resize_object;
- glLabelObjectHandle resize_handle;
- gboolean resize_honor_aspect;
-
- /* GL_VIEW_CREATE_DRAG state */
- glLabelObject *create_object;
- gdouble create_x0;
- gdouble create_y0;
-
+ GtkVBox parent_widget;
+
+ glLabel *label;
+
+ GtkWidget *canvas;
+ gdouble zoom;
+ gboolean zoom_to_fit_flag;
+ gdouble home_scale;
+ gdouble x0, y0;
+ gdouble w, h;
+
+ gboolean update_scheduled_flag;
+ gboolean grid_visible;
+ gdouble grid_spacing;
+
+ gboolean markup_visible;
+
+ glViewMode mode;
+ glLabelObjectType create_type;
+ glViewState state;
+ gboolean grabbed_flag;
+
+ /* GL_VIEW_ARROW_MOVE state */
+ gdouble move_last_x;
+ gdouble move_last_y;
+ gdouble saved_x;
+ gdouble saved_y;
+
+ /* GL_VIEW_ARROW_SELECT_REGION state */
+ gboolean select_region_visible;
+ glLabelRegion select_region;
+
+ /* GL_VIEW_ARROW_RESIZE state */
+ glLabelObject *resize_object;
+ glLabelObjectHandle resize_handle;
+ gdouble saved_ratio;
+ gdouble saved_w;
+ gdouble saved_h;
+
+ /* GL_VIEW_CREATE_DRAG state */
+ glLabelObject *create_object;
+ gdouble create_x0;
+ gdouble create_y0;
};
struct _glViewClass {
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