view2d_ops.cc File Reference

#include <cmath>
#include "MEM_guardedalloc.h"
#include "DNA_userdef_types.h"
#include "DNA_windowmanager_types.h"
#include "BLI_math_base.h"
#include "BLI_math_vector.h"
#include "BLI_time.h"
#include "BLI_utildefines.h"
#include "BKE_context.hh"
#include "RNA_access.hh"
#include "RNA_define.hh"
#include "WM_api.hh"
#include "WM_types.hh"
#include "ED_screen.hh"
#include "UI_interface.hh"
#include "UI_view2d.hh"
#include "view2d_intern.hh"

Go to the source code of this file.

Classes
struct	v2dViewPanData
struct	v2dViewZoomData
struct	SmoothView2DStore
struct	v2dScrollerMove

Functions
Internal Utilities
static bool	view2d_poll (bContext *C)
static float	view2d_scroll_delta_y_snap_page_size (const View2D &v2d, const float delta_y)
View Pan Shared Utilities
static bool	view_pan_poll (bContext *C)
static void	view_pan_init (bContext *C, wmOperator *op)
static void	view_pan_apply_ex (bContext *C, v2dViewPanData *vpd, float dx, float dy)
static void	view_pan_apply (bContext *C, wmOperator *op)
static void	view_pan_exit (wmOperator *op)
View Pan Operator (modal drag-pan)
static wmOperatorStatus	view_pan_exec (bContext *C, wmOperator *op)
static wmOperatorStatus	view_pan_invoke (bContext *C, wmOperator *op, const wmEvent *event)
static wmOperatorStatus	view_pan_modal (bContext *C, wmOperator *op, const wmEvent *event)
static void	view_pan_cancel (bContext *, wmOperator *op)
static void	VIEW2D_OT_pan (wmOperatorType *ot)
View Edge Pan Operator (modal)
Scroll the region if the mouse is dragged to an edge. "Invisible" operator that always passes through.
static wmOperatorStatus	view_edge_pan_invoke (bContext *C, wmOperator *op, const wmEvent *)
static wmOperatorStatus	view_edge_pan_modal (bContext *C, wmOperator *op, const wmEvent *event)
static void	view_edge_pan_cancel (bContext *, wmOperator *op)
static void	VIEW2D_OT_edge_pan (wmOperatorType *ot)
View Pan Operator (single step)
static wmOperatorStatus	view_scrollright_exec (bContext *C, wmOperator *op)
static void	VIEW2D_OT_scroll_right (wmOperatorType *ot)
static wmOperatorStatus	view_scrollleft_exec (bContext *C, wmOperator *op)
static void	VIEW2D_OT_scroll_left (wmOperatorType *ot)
static wmOperatorStatus	view_scrolldown_exec (bContext *C, wmOperator *op)
static void	VIEW2D_OT_scroll_down (wmOperatorType *ot)
static wmOperatorStatus	view_scrollup_exec (bContext *C, wmOperator *op)
static void	VIEW2D_OT_scroll_up (wmOperatorType *ot)
View Zoom Shared Utilities
static void	view_zoom_axis_lock_defaults (bContext *C, bool r_do_zoom_xy[2])
static bool	view_zoom_poll (bContext *C)
static void	view_zoomdrag_init (bContext *C, wmOperator *op)
static void	view_zoomstep_apply_ex (bContext *C, v2dViewZoomData *vzd, const float facx, const float facy)
static void	view_zoomstep_apply (bContext *C, wmOperator *op)
View Zoom Operator (single step)
static void	view_zoomstep_exit (bContext *C, wmOperator *op)
static wmOperatorStatus	view_zoomin_exec (bContext *C, wmOperator *op)
static wmOperatorStatus	view_zoomin_invoke (bContext *C, wmOperator *op, const wmEvent *event)
static void	VIEW2D_OT_zoom_in (wmOperatorType *ot)
static wmOperatorStatus	view_zoomout_exec (bContext *C, wmOperator *op)
static wmOperatorStatus	view_zoomout_invoke (bContext *C, wmOperator *op, const wmEvent *event)
static void	VIEW2D_OT_zoom_out (wmOperatorType *ot)
View Zoom Operator (modal drag-zoom)
static void	view_zoomdrag_apply (bContext *C, wmOperator *op)
static void	view_zoomdrag_exit (bContext *C, wmOperator *op)
static void	view_zoomdrag_cancel (bContext *C, wmOperator *op)
static wmOperatorStatus	view_zoomdrag_exec (bContext *C, wmOperator *op)
static wmOperatorStatus	view_zoomdrag_invoke (bContext *C, wmOperator *op, const wmEvent *event)
static wmOperatorStatus	view_zoomdrag_modal (bContext *C, wmOperator *op, const wmEvent *event)
static void	VIEW2D_OT_zoom (wmOperatorType *ot)
Border Zoom Operator
The user defines a rect using standard box select tools, and we use this rect to define the new zoom-level of the view in the following ways: LEFTMOUSE - zoom in to view RIGHTMOUSE - zoom out of view Currently, these key mappings are hardcoded, but it shouldn't be too important to have custom key-mappings for this.
static wmOperatorStatus	view_borderzoom_exec (bContext *C, wmOperator *op)
static void	VIEW2D_OT_zoom_border (wmOperatorType *ot)
Smooth View Operator
static float	smooth_view_rect_to_fac (const rctf *rect_a, const rctf *rect_b)
void	UI_view2d_smooth_view (const bContext *C, ARegion *region, const rctf *cur, const int smooth_viewtx)
static wmOperatorStatus	view2d_smoothview_invoke (bContext *C, wmOperator *, const wmEvent *event)
static void	VIEW2D_OT_smoothview (wmOperatorType *ot)
View Reset Operator
static wmOperatorStatus	reset_exec (bContext *C, wmOperator *)
static void	VIEW2D_OT_reset (wmOperatorType *ot)
Registration
void	ED_operatortypes_view2d ()
void	ED_keymap_view2d (wmKeyConfig *keyconf)

Scroll Bar Move Operator
enum	{   SCROLLHANDLE_MIN = -1 , SCROLLHANDLE_BAR , SCROLLHANDLE_MAX , SCROLLHANDLE_MIN_OUTSIDE ,   SCROLLHANDLE_MAX_OUTSIDE }
static short	scrollbar_zone_get (int mouse, int sh_min, int sh_max)
static bool	scroller_activate_poll (bContext *C)
static void	scroller_activate_init (bContext *C, wmOperator *op, const wmEvent *event, const char in_scroller)
static void	scroller_activate_exit (bContext *C, wmOperator *op)
static void	scroller_activate_cancel (bContext *C, wmOperator *op)
static void	scroller_activate_apply (bContext *C, wmOperator *op)
static wmOperatorStatus	scroller_activate_modal (bContext *C, wmOperator *op, const wmEvent *event)
static wmOperatorStatus	scroller_activate_invoke (bContext *C, wmOperator *op, const wmEvent *event)
static void	VIEW2D_OT_scroller_activate (wmOperatorType *ot)

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
SCROLLHANDLE_MIN
SCROLLHANDLE_BAR
SCROLLHANDLE_MAX
SCROLLHANDLE_MIN_OUTSIDE
SCROLLHANDLE_MAX_OUTSIDE

Definition at line 1810 of file view2d_ops.cc.

Function Documentation

ED_keymap_view2d()

void ED_keymap_view2d

(

wmKeyConfig *

keyconf

)

Definition at line 2346 of file view2d_ops.cc.

References RGN_TYPE_WINDOW, SPACE_EMPTY, and WM_keymap_ensure().

Referenced by ED_spacetypes_keymap().

ED_operatortypes_view2d()

void ED_operatortypes_view2d

(

)

Definition at line 2319 of file view2d_ops.cc.

References VIEW2D_OT_edge_pan(), VIEW2D_OT_pan(), VIEW2D_OT_reset(), VIEW2D_OT_scroll_down(), VIEW2D_OT_scroll_left(), VIEW2D_OT_scroll_right(), VIEW2D_OT_scroll_up(), VIEW2D_OT_scroller_activate(), VIEW2D_OT_smoothview(), VIEW2D_OT_zoom(), VIEW2D_OT_zoom_border(), VIEW2D_OT_zoom_in(), VIEW2D_OT_zoom_out(), and WM_operatortype_append().

Referenced by ED_spacetypes_init().

reset_exec()

wmOperatorStatus reset_exec ( bContext * C, wmOperator *  )

static

Definition at line 2244 of file view2d_ops.cc.

References View2D::align, BLI_rcti_size_x(), BLI_rcti_size_y(), C, ARegion::category_scroll, CTX_wm_area(), CTX_wm_region(), CTX_wm_screen(), View2D::cur, ED_area_tag_redraw(), ED_region_snap_size_apply(), ED_region_snap_size_test(), ED_region_tag_redraw(), View2D::mask, NA_EDITED, NC_SCREEN, OPERATOR_FINISHED, uiStyle::panelzoom, UI_style_get(), UI_view2d_curRect_changed(), UI_view2d_sync(), UI_view2d_zoom_cache_reset(), ARegion::v2d, V2D_ALIGN_NO_NEG_X, V2D_ALIGN_NO_NEG_Y, V2D_ALIGN_NO_POS_X, V2D_ALIGN_NO_POS_Y, V2D_LOCK_COPY, WM_event_add_notifier(), rctf::xmax, rctf::xmin, rctf::ymax, and rctf::ymin.

Referenced by UV_OT_reset(), and VIEW2D_OT_reset().

scrollbar_zone_get()

short scrollbar_zone_get ( int mouse, int sh_min, int sh_max )

static

Get the part of the scrollbar that the mouse is in.

Parameters

mouse	Relevant mouse coordinate in region space.
sh_min,sh_max	Extents of the "scroller handle" part of the scrollbar in region space.

Definition at line 1824 of file view2d_ops.cc.

References SCROLLHANDLE_BAR, SCROLLHANDLE_MAX, SCROLLHANDLE_MAX_OUTSIDE, SCROLLHANDLE_MIN, SCROLLHANDLE_MIN_OUTSIDE, and V2D_SCROLL_HANDLE_SIZE_HOTSPOT.

Referenced by scroller_activate_init().

scroller_activate_apply()

void scroller_activate_apply ( bContext * C, wmOperator * op )

static

Definition at line 1982 of file view2d_ops.cc.

References C, CTX_wm_area(), CTX_wm_screen(), View2D::cur, wmOperator::customdata, v2dScrollerMove::delta, ED_region_tag_redraw_no_rebuild(), v2dScrollerMove::fac, v2dScrollerMove::fac_round, View2D::keepofs, View2D::keepzoom, v2dScrollerMove::region, v2dScrollerMove::scroller, SCROLLHANDLE_BAR, SCROLLHANDLE_MAX, SCROLLHANDLE_MAX_OUTSIDE, SCROLLHANDLE_MIN, SCROLLHANDLE_MIN_OUTSIDE, UI_view2d_curRect_changed(), UI_view2d_sync(), v2dScrollerMove::v2d, V2D_LOCK_COPY, V2D_LOCKOFS_X, V2D_LOCKOFS_Y, V2D_LOCKZOOM_X, V2D_LOCKZOOM_Y, rctf::xmax, rctf::xmin, rctf::ymax, rctf::ymin, and v2dScrollerMove::zone.

Referenced by scroller_activate_invoke(), and scroller_activate_modal().

scroller_activate_cancel()

void scroller_activate_cancel ( bContext * C, wmOperator * op )

static

Definition at line 1976 of file view2d_ops.cc.

References C, and scroller_activate_exit().

Referenced by VIEW2D_OT_scroller_activate().

scroller_activate_exit()

void scroller_activate_exit ( bContext * C, wmOperator * op )

static

Definition at line 1961 of file view2d_ops.cc.

References C, CTX_wm_region(), wmOperator::customdata, ED_region_tag_redraw_no_rebuild(), View2D::flag, MEM_freeN(), View2D::scroll_ui, v2dScrollerMove::v2d, V2D_IS_NAVIGATING, V2D_SCROLL_H_ACTIVE, and V2D_SCROLL_V_ACTIVE.

Referenced by scroller_activate_cancel(), scroller_activate_invoke(), and scroller_activate_modal().

scroller_activate_init()

void scroller_activate_init ( bContext * C, wmOperator * op, const wmEvent * event, const char in_scroller )

static

Definition at line 1874 of file view2d_ops.cc.

References BLI_rctf_size_x(), BLI_rctf_size_y(), BLI_rctf_union(), BLI_rcti_size_x(), BLI_rcti_size_y(), BLI_rcti_union(), C, CTX_wm_region(), View2D::cur, wmOperator::customdata, ED_region_tag_redraw_no_rebuild(), ELEM, v2dScrollerMove::fac, v2dScrollerMove::fac_round, View2D::flag, View2D::hor, View2DScrollers::hor_max, View2DScrollers::hor_min, View2D::keepzoom, v2dScrollerMove::lastx, v2dScrollerMove::lasty, MEM_callocN(), wmEvent::mval, v2dScrollerMove::region, v2dScrollerMove::scrollbar_orig, scrollbar_zone_get(), v2dScrollerMove::scrollbarwidth, v2dScrollerMove::scroller, SCROLLHANDLE_BAR, SCROLLHANDLE_MAX, SCROLLHANDLE_MIN, View2D::tot, ARegion::v2d, v2dScrollerMove::v2d, V2D_IS_NAVIGATING, V2D_LOCKZOOM_X, V2D_LOCKZOOM_Y, View2D::vert, View2DScrollers::vert_max, View2DScrollers::vert_min, view2d_scrollers_calc(), ARegion::winrct, rcti::xmin, rcti::ymin, and v2dScrollerMove::zone.

Referenced by scroller_activate_invoke().

scroller_activate_invoke()

wmOperatorStatus scroller_activate_invoke ( bContext * C, wmOperator * op, const wmEvent * event )

static

Definition at line 2133 of file view2d_ops.cc.

References C, CTX_wm_region(), wmOperator::customdata, v2dScrollerMove::delta, ELEM, View2D::keepofs, MIDDLEMOUSE, OPERATOR_PASS_THROUGH, OPERATOR_RUNNING_MODAL, View2D::scroll, View2D::scroll_ui, v2dScrollerMove::scrollbar_orig, v2dScrollerMove::scroller, scroller_activate_apply(), scroller_activate_exit(), scroller_activate_init(), SCROLLHANDLE_BAR, SCROLLHANDLE_MAX, SCROLLHANDLE_MIN, wmEvent::type, UI_view2d_mouse_in_scrollers(), ARegion::v2d, V2D_LOCKOFS_X, V2D_LOCKOFS_Y, V2D_SCROLL_H_ACTIVE, V2D_SCROLL_HORIZONTAL_FULLR, V2D_SCROLL_HORIZONTAL_HANDLES, V2D_SCROLL_V_ACTIVE, V2D_SCROLL_VERTICAL_FULLR, V2D_SCROLL_VERTICAL_HANDLES, WM_event_add_modal_handler(), wmEvent::xy, and v2dScrollerMove::zone.

Referenced by VIEW2D_OT_scroller_activate().

scroller_activate_modal()

wmOperatorStatus scroller_activate_modal ( bContext * C, wmOperator * op, const wmEvent * event )

static

Handle user input for scrollers - calculations of mouse-movement need to be done here, not in the apply callback!

Definition at line 2044 of file view2d_ops.cc.

References C, wmOperator::customdata, v2dScrollerMove::delta, ELEM, v2dScrollerMove::fac, View2D::flag, IS_EQF, KM_RELEASE, v2dScrollerMove::lastx, v2dScrollerMove::lasty, LEFTMOUSE, MIDDLEMOUSE, MOUSEMOVE, OPERATOR_FINISHED, OPERATOR_RUNNING_MODAL, v2dScrollerMove::scrollbarwidth, v2dScrollerMove::scroller, scroller_activate_apply(), scroller_activate_exit(), SCROLLHANDLE_BAR, SCROLLHANDLE_MAX, SCROLLHANDLE_MAX_OUTSIDE, SCROLLHANDLE_MIN, SCROLLHANDLE_MIN_OUTSIDE, wmEvent::type, v2dScrollerMove::v2d, V2D_SNAP_TO_PAGESIZE_Y, wmEvent::val, view2d_scroll_delta_y_snap_page_size(), wmEvent::xy, and v2dScrollerMove::zone.

Referenced by VIEW2D_OT_scroller_activate().

scroller_activate_poll()

bool scroller_activate_poll ( bContext * C )

static

Definition at line 1858 of file view2d_ops.cc.

References C, CTX_wm_region(), CTX_wm_window(), wmWindow::eventstate, UI_view2d_mouse_in_scrollers(), ARegion::v2d, view2d_poll(), and wmEvent::xy.

Referenced by VIEW2D_OT_scroller_activate().

smooth_view_rect_to_fac()

float smooth_view_rect_to_fac ( const rctf * rect_a, const rctf * rect_b )

static

function to get a factor out of a rectangle

NOTE: this doesn't always work as well as it might because the target size may not be reached because of clamping the desired rect, we could attempt to clamp the rect before working out the zoom factor but its not really worthwhile for the few cases this happens.

Definition at line 1598 of file view2d_ops.cc.

References BLI_rctf_cent_x(), BLI_rctf_cent_y(), BLI_rctf_size_x(), BLI_rctf_size_y(), fabsf, i, max_ff(), and min_ff().

Referenced by UI_view2d_smooth_view().

UI_view2d_smooth_view()

void UI_view2d_smooth_view	(	const bContext *	C,
		ARegion *	region,
		const rctf *	cur,
		int	smooth_viewtx )

Will start timer if appropriate. the arguments are the desired situation.

Definition at line 1625 of file view2d_ops.cc.

References BLI_rctf_compare(), C, CTX_wm_area(), CTX_wm_manager(), CTX_wm_screen(), CTX_wm_window(), View2D::cur, ED_region_tag_redraw_no_rebuild(), SmoothView2DStore::new_cur, SmoothView2DStore::orig_cur, View2D::smooth_timer, smooth_view_rect_to_fac(), View2D::sms, SmoothView2DStore::time_allowed, TIMER1, UI_view2d_curRect_changed(), UI_view2d_sync(), ARegion::v2d, V2D_LOCK_COPY, WM_event_timer_add(), and WM_event_timer_remove().

Referenced by ANIM_center_frame(), graphkeys_channel_view_pick_invoke(), graphkeys_view_selected_channels_exec(), graphkeys_viewall(), blender::ed::vse::sequencer_view_all_exec(), blender::ed::vse::sequencer_view_selected_exec(), blender::ed::space_node::space_node_view_flag(), view_borderzoom_exec(), and view_curve_in_graph_editor_exec().

VIEW2D_OT_edge_pan()

void VIEW2D_OT_edge_pan ( wmOperatorType * ot )

static

Definition at line 426 of file view2d_ops.cc.

References OPTYPE_INTERNAL, ot, UI_view2d_edge_pan_operator_properties(), view2d_edge_pan_poll(), view_edge_pan_cancel(), view_edge_pan_invoke(), and view_edge_pan_modal().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_pan()

void VIEW2D_OT_pan ( wmOperatorType * ot )

static

Definition at line 350 of file view2d_ops.cc.

References OPTYPE_BLOCKING, OPTYPE_GRAB_CURSOR_XY, ot, RNA_def_int(), view_pan_cancel(), view_pan_exec(), view_pan_invoke(), view_pan_modal(), and view_pan_poll().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_reset()

void VIEW2D_OT_reset ( wmOperatorType * ot )

static

Definition at line 2301 of file view2d_ops.cc.

References ot, reset_exec(), and view2d_poll().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_scroll_down()

void VIEW2D_OT_scroll_down ( wmOperatorType * ot )

static

Definition at line 568 of file view2d_ops.cc.

References ot, RNA_def_boolean(), RNA_def_int(), view_pan_poll(), and view_scrolldown_exec().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_scroll_left()

void VIEW2D_OT_scroll_left ( wmOperatorType * ot )

static

Definition at line 514 of file view2d_ops.cc.

References ot, RNA_def_int(), view_pan_poll(), and view_scrollleft_exec().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_scroll_right()

void VIEW2D_OT_scroll_right ( wmOperatorType * ot )

static

Definition at line 474 of file view2d_ops.cc.

References ot, RNA_def_int(), view_pan_poll(), and view_scrollright_exec().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_scroll_up()

void VIEW2D_OT_scroll_up ( wmOperatorType * ot )

static

Definition at line 623 of file view2d_ops.cc.

References ot, RNA_def_boolean(), RNA_def_int(), view_pan_poll(), and view_scrollup_exec().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_scroller_activate()

void VIEW2D_OT_scroller_activate ( wmOperatorType * ot )

static

Definition at line 2220 of file view2d_ops.cc.

References OPTYPE_BLOCKING, ot, scroller_activate_cancel(), scroller_activate_invoke(), scroller_activate_modal(), and scroller_activate_poll().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_smoothview()

void VIEW2D_OT_smoothview ( wmOperatorType * ot )

static

Definition at line 1746 of file view2d_ops.cc.

References OPTYPE_INTERNAL, ot, view2d_poll(), view2d_smoothview_invoke(), and WM_operator_properties_gesture_box().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_zoom()

void VIEW2D_OT_zoom ( wmOperatorType * ot )

static

Definition at line 1386 of file view2d_ops.cc.

References FLT_MAX, OPTYPE_BLOCKING, OPTYPE_GRAB_CURSOR_XY, ot, PROP_HIDDEN, RNA_def_float(), RNA_def_property_flag(), view_zoom_poll(), view_zoomdrag_cancel(), view_zoomdrag_exec(), view_zoomdrag_invoke(), view_zoomdrag_modal(), and WM_operator_properties_use_cursor_init().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_zoom_border()

void VIEW2D_OT_zoom_border ( wmOperatorType * ot )

static

Definition at line 1492 of file view2d_ops.cc.

References ot, view_borderzoom_exec(), view_zoom_poll(), WM_gesture_box_cancel(), WM_gesture_box_invoke(), WM_gesture_box_modal(), and WM_operator_properties_gesture_box_zoom().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_zoom_in()

void VIEW2D_OT_zoom_in ( wmOperatorType * ot )

static

Definition at line 925 of file view2d_ops.cc.

References FLT_MAX, ot, PROP_HIDDEN, RNA_def_float(), RNA_def_property_flag(), view_zoom_poll(), view_zoomin_exec(), and view_zoomin_invoke().

Referenced by ED_operatortypes_view2d().

VIEW2D_OT_zoom_out()

void VIEW2D_OT_zoom_out ( wmOperatorType * ot )

static

Definition at line 989 of file view2d_ops.cc.

References FLT_MAX, ot, PROP_HIDDEN, RNA_def_float(), RNA_def_property_flag(), view_zoom_poll(), view_zoomout_exec(), and view_zoomout_invoke().

Referenced by ED_operatortypes_view2d().

view2d_poll()

bool view2d_poll ( bContext * C )

static

Definition at line 40 of file view2d_ops.cc.

References C, CTX_wm_region(), View2D::flag, ARegion::v2d, and V2D_IS_INIT.

Referenced by scroller_activate_poll(), VIEW2D_OT_reset(), and VIEW2D_OT_smoothview().

view2d_scroll_delta_y_snap_page_size()

float view2d_scroll_delta_y_snap_page_size ( const View2D & v2d, const float delta_y )

static

Calculate a scrolling delta that is the closest to a multiple of the page size (as returned by view2d_page_size_y). So when scrolling for more than half a page size, a delta to the next page is returned. No scrolling change should be applied when this returns 0.

Definition at line 52 of file view2d_ops.cc.

References abs, and view2d_page_size_y().

Referenced by scroller_activate_modal(), and view_pan_modal().

view2d_smoothview_invoke()

wmOperatorStatus view2d_smoothview_invoke ( bContext * C, wmOperator * , const wmEvent * event )

static

Definition at line 1693 of file view2d_ops.cc.

References BLI_rctf_interp(), C, CTX_wm_area(), CTX_wm_manager(), CTX_wm_region(), CTX_wm_screen(), CTX_wm_window(), View2D::cur, wmEvent::customdata, ED_region_tag_redraw_no_rebuild(), SmoothView2DStore::new_cur, OPERATOR_FINISHED, OPERATOR_PASS_THROUGH, SmoothView2DStore::orig_cur, View2D::smooth_timer, View2D::sms, step, SmoothView2DStore::time_allowed, wmTimer::time_duration, UI_view2d_curRect_changed(), UI_view2d_sync(), UI_view2d_zoom_cache_reset(), ARegion::v2d, V2D_LOCK_COPY, WM_event_add_mousemove(), and WM_event_timer_remove().

Referenced by VIEW2D_OT_smoothview().

view_borderzoom_exec()

wmOperatorStatus view_borderzoom_exec ( bContext * C, wmOperator * op )

static

Definition at line 1429 of file view2d_ops.cc.

References BLI_rctf_cent_x(), BLI_rctf_cent_y(), BLI_rctf_size_x(), BLI_rctf_size_y(), C, CTX_wm_region(), View2D::cur, View2D::keepzoom, OPERATOR_FINISHED, wmOperator::ptr, RNA_boolean_get(), size(), UI_view2d_region_to_view_rctf(), UI_view2d_smooth_view(), ARegion::v2d, V2D_LOCKZOOM_X, V2D_LOCKZOOM_Y, WM_operator_properties_border_to_rctf(), WM_operator_smooth_viewtx_get(), rctf::xmax, rctf::xmin, rctf::ymax, and rctf::ymin.

Referenced by VIEW2D_OT_zoom_border().

view_edge_pan_cancel()

void view_edge_pan_cancel ( bContext * , wmOperator * op )

static

Definition at line 418 of file view2d_ops.cc.

References wmOperator::customdata, View2D::flag, MEM_SAFE_FREE, v2dViewPanData::v2d, and V2D_IS_NAVIGATING.

Referenced by VIEW2D_OT_edge_pan().

view_edge_pan_invoke()

wmOperatorStatus view_edge_pan_invoke ( bContext * C, wmOperator * op, const wmEvent *  )

static

Definition at line 382 of file view2d_ops.cc.

References C, wmOperator::customdata, MEM_callocN(), OPERATOR_PASS_THROUGH, OPERATOR_RUNNING_MODAL, UI_view2d_edge_pan_operator_init(), and WM_event_add_modal_handler().

Referenced by VIEW2D_OT_edge_pan().

view_edge_pan_modal()

wmOperatorStatus view_edge_pan_modal ( bContext * C, wmOperator * op, const wmEvent * event )

static

Definition at line 395 of file view2d_ops.cc.

References C, CTX_wm_window(), wmOperator::customdata, EVT_ESCKEY, View2D::flag, KM_RELEASE, MEM_SAFE_FREE, OPERATOR_FINISHED, OPERATOR_PASS_THROUGH, wmEvent::type, UI_view2d_edge_pan_apply_event(), View2DEdgePanData::v2d, V2D_IS_NAVIGATING, wmEvent::val, WM_window_find_under_cursor(), and wmEvent::xy.

Referenced by VIEW2D_OT_edge_pan().

view_pan_apply()

void view_pan_apply ( bContext * C, wmOperator * op )

static

Definition at line 199 of file view2d_ops.cc.

References C, wmOperator::customdata, wmOperator::ptr, RNA_int_get(), and view_pan_apply_ex().

Referenced by view_pan_exec(), view_pan_invoke(), view_pan_modal(), view_scrolldown_exec(), view_scrollleft_exec(), view_scrollright_exec(), and view_scrollup_exec().

view_pan_apply_ex()

void view_pan_apply_ex ( bContext * C, v2dViewPanData * vpd, float dx, float dy )

static

Definition at line 164 of file view2d_ops.cc.

References v2dViewPanData::area, C, ARegion::category_scroll, CTX_wm_window(), View2D::cur, v2dViewPanData::do_category_scroll, ED_region_tag_redraw_no_rebuild(), v2dViewPanData::facx, v2dViewPanData::facy, View2D::keepofs, v2dViewPanData::region, v2dViewPanData::screen, UI_view2d_curRect_changed(), UI_view2d_sync(), v2dViewPanData::v2d, V2D_LOCK_COPY, V2D_LOCKOFS_X, V2D_LOCKOFS_Y, WM_event_add_mousemove(), rctf::xmax, rctf::xmin, rctf::ymax, and rctf::ymin.

Referenced by view_pan_apply().

view_pan_cancel()

void view_pan_cancel ( bContext * , wmOperator * op )

static

Definition at line 345 of file view2d_ops.cc.

References view_pan_exit().

Referenced by CLIP_OT_view_pan(), and VIEW2D_OT_pan().

view_pan_exec()

wmOperatorStatus view_pan_exec ( bContext * C, wmOperator * op )

static

Definition at line 222 of file view2d_ops.cc.

References C, OPERATOR_FINISHED, view_pan_apply(), view_pan_exit(), and view_pan_init().

Referenced by CLIP_OT_view_pan(), and VIEW2D_OT_pan().

view_pan_exit()

void view_pan_exit ( wmOperator * op )

static

Definition at line 207 of file view2d_ops.cc.

References wmOperator::customdata, View2D::flag, MEM_freeN(), v2dViewPanData::v2d, and V2D_IS_NAVIGATING.

Referenced by view_pan_cancel(), view_pan_exec(), view_pan_invoke(), view_pan_modal(), view_scrolldown_exec(), view_scrollleft_exec(), view_scrollright_exec(), and view_scrollup_exec().

view_pan_init()

void view_pan_init ( bContext * C, wmOperator * op )

static

Definition at line 137 of file view2d_ops.cc.

References v2dViewPanData::area, BLI_assert, BLI_rctf_size_x(), BLI_rctf_size_y(), BLI_rcti_size_x(), BLI_rcti_size_y(), C, CTX_wm_area(), CTX_wm_region(), CTX_wm_screen(), View2D::cur, wmOperator::customdata, v2dViewPanData::do_category_scroll, v2dViewPanData::facx, v2dViewPanData::facy, View2D::flag, MEM_callocN(), v2dViewPanData::region, v2dViewPanData::screen, ARegion::v2d, v2dViewPanData::v2d, V2D_IS_NAVIGATING, view_pan_poll(), and ARegion::winrct.

Referenced by view_pan_exec(), view_pan_invoke(), view_scrolldown_exec(), view_scrollleft_exec(), view_scrollright_exec(), and view_scrollup_exec().

view_pan_invoke()

wmOperatorStatus view_pan_invoke ( bContext * C, wmOperator * op, const wmEvent * event )

static

Definition at line 231 of file view2d_ops.cc.

References C, CTX_wm_window(), wmOperator::customdata, v2dViewPanData::do_category_scroll, ED_region_panel_category_gutter_isect_xy(), wmWindow::grabcursor, v2dViewPanData::invoke_event, View2D::keepofs, v2dViewPanData::lastx, v2dViewPanData::lasty, MOUSEPAN, OPERATOR_FINISHED, OPERATOR_RUNNING_MODAL, wmEvent::prev_xy, wmOperator::ptr, v2dViewPanData::region, RNA_int_set(), v2dViewPanData::startx, v2dViewPanData::starty, wmEvent::type, v2dViewPanData::v2d, V2D_LOCKOFS_X, V2D_LOCKOFS_Y, view_pan_apply(), view_pan_exit(), view_pan_init(), WM_CURSOR_EW_SCROLL, WM_cursor_modal_set(), WM_CURSOR_NS_SCROLL, WM_CURSOR_NSEW_SCROLL, WM_event_add_modal_handler(), and wmEvent::xy.

Referenced by CLIP_OT_view_pan(), and VIEW2D_OT_pan().

view_pan_modal()

wmOperatorStatus view_pan_modal ( bContext * C, wmOperator * op, const wmEvent * event )

static

Definition at line 280 of file view2d_ops.cc.

References C, CTX_wm_window(), wmOperator::customdata, ELEM, EVT_ESCKEY, View2D::flag, v2dViewPanData::invoke_event, KM_PRESS, KM_RELEASE, v2dViewPanData::lastx, v2dViewPanData::lasty, LEFTMOUSE, MOUSEMOVE, OPERATOR_FINISHED, OPERATOR_RUNNING_MODAL, wmOperator::ptr, RNA_int_set(), v2dViewPanData::startx, v2dViewPanData::starty, wmEvent::type, v2dViewPanData::v2d, V2D_SNAP_TO_PAGESIZE_Y, wmEvent::val, view2d_scroll_delta_y_snap_page_size(), view_pan_apply(), view_pan_exit(), WM_cursor_modal_restore(), WM_OP_INVOKE_DEFAULT, and WM_operator_name_call().

Referenced by CLIP_OT_view_pan(), and VIEW2D_OT_pan().

view_pan_poll()

bool view_pan_poll ( bContext * C )

static

Definition at line 116 of file view2d_ops.cc.

References C, CTX_wm_region(), View2D::keepofs, ARegion::v2d, V2D_LOCKOFS_X, and V2D_LOCKOFS_Y.

Referenced by VIEW2D_OT_pan(), VIEW2D_OT_scroll_down(), VIEW2D_OT_scroll_left(), VIEW2D_OT_scroll_right(), VIEW2D_OT_scroll_up(), and view_pan_init().

view_scrolldown_exec()

wmOperatorStatus view_scrolldown_exec ( bContext * C, wmOperator * op )

static

Definition at line 531 of file view2d_ops.cc.

References C, CTX_wm_region(), CTX_wm_window(), wmOperator::customdata, v2dViewPanData::do_category_scroll, ED_region_panel_category_gutter_isect_xy(), wmWindow::eventstate, View2D::flag, View2D::keepofs, OPERATOR_FINISHED, OPERATOR_PASS_THROUGH, wmOperator::ptr, v2dViewPanData::region, RNA_int_set(), RNA_property_boolean_get(), RNA_property_is_set(), RNA_struct_find_property(), UI_SCALE_FAC, ARegion::v2d, v2dViewPanData::v2d, V2D_LOCKOFS_Y, V2D_SNAP_TO_PAGESIZE_Y, view2d_page_size_y(), view_pan_apply(), view_pan_exit(), view_pan_init(), and wmEvent::xy.

Referenced by VIEW2D_OT_scroll_down().

view_scrollleft_exec()

wmOperatorStatus view_scrollleft_exec ( bContext * C, wmOperator * op )

static

Definition at line 491 of file view2d_ops.cc.

References C, wmOperator::customdata, View2D::keepofs, OPERATOR_FINISHED, OPERATOR_PASS_THROUGH, wmOperator::ptr, RNA_int_set(), UI_SCALE_FAC, v2dViewPanData::v2d, V2D_LOCKOFS_X, view_pan_apply(), view_pan_exit(), and view_pan_init().

Referenced by VIEW2D_OT_scroll_left().

view_scrollright_exec()

wmOperatorStatus view_scrollright_exec ( bContext * C, wmOperator * op )

static

Definition at line 451 of file view2d_ops.cc.

References C, wmOperator::customdata, View2D::keepofs, OPERATOR_FINISHED, OPERATOR_PASS_THROUGH, wmOperator::ptr, RNA_int_set(), UI_SCALE_FAC, v2dViewPanData::v2d, V2D_LOCKOFS_X, view_pan_apply(), view_pan_exit(), and view_pan_init().

Referenced by VIEW2D_OT_scroll_right().

view_scrollup_exec()

wmOperatorStatus view_scrollup_exec ( bContext * C, wmOperator * op )

static

Definition at line 586 of file view2d_ops.cc.

References C, CTX_wm_region(), CTX_wm_window(), wmOperator::customdata, v2dViewPanData::do_category_scroll, ED_region_panel_category_gutter_isect_xy(), wmWindow::eventstate, View2D::flag, View2D::keepofs, OPERATOR_FINISHED, OPERATOR_PASS_THROUGH, wmOperator::ptr, v2dViewPanData::region, RNA_int_set(), RNA_property_boolean_get(), RNA_property_is_set(), RNA_struct_find_property(), UI_SCALE_FAC, ARegion::v2d, v2dViewPanData::v2d, V2D_LOCKOFS_Y, V2D_SNAP_TO_PAGESIZE_Y, view2d_page_size_y(), view_pan_apply(), view_pan_exit(), view_pan_init(), and wmEvent::xy.

Referenced by VIEW2D_OT_scroll_up().

view_zoom_axis_lock_defaults()

void view_zoom_axis_lock_defaults ( bContext * C, bool r_do_zoom_xy[2] )

static

Clamp by convention rather than locking flags, for ndof and +/- keys

Definition at line 682 of file view2d_ops.cc.

References C, CTX_wm_area(), CTX_wm_region(), ARegion::regiontype, RGN_TYPE_WINDOW, SPACE_SEQ, and ScrArea::spacetype.

Referenced by view_zoomin_exec(), and view_zoomout_exec().

view_zoom_poll()

bool view_zoom_poll ( bContext * C )

static

Definition at line 700 of file view2d_ops.cc.

References C, CTX_wm_region(), CTX_wm_region_view3d(), View2D::keepzoom, ARegion::v2d, V2D_LOCKZOOM_X, and V2D_LOCKZOOM_Y.

Referenced by VIEW2D_OT_zoom(), VIEW2D_OT_zoom_border(), VIEW2D_OT_zoom_in(), VIEW2D_OT_zoom_out(), and view_zoomdrag_init().

view_zoomdrag_apply()

void view_zoomdrag_apply ( bContext * C, wmOperator * op )

static

MMB Drag - allows non-uniform scaling by dragging mouse

In order to make sure this works, each operator must define the following RNA-Operator Props:

• deltax, deltay - amounts to add to each side of the 'cur' rect

Definition at line 1027 of file view2d_ops.cc.

References BLI_rctf_size_x(), BLI_rctf_size_y(), BLI_time_now_seconds(), C, CTX_wm_area(), CTX_wm_screen(), View2D::cur, wmOperator::customdata, ED_area_tag_redraw(), ED_region_snap_size_apply(), ED_region_snap_size_test(), ED_region_tag_redraw_no_rebuild(), View2D::keepofs, View2D::keepzoom, v2dViewZoomData::mx_2d, v2dViewZoomData::my_2d, NA_EDITED, NC_SCREEN, wmOperator::ptr, v2dViewZoomData::region, RNA_boolean_get(), RNA_float_get(), v2dViewZoomData::timer, v2dViewZoomData::timer_lastdraw, U, UI_SCALE_FAC, UI_view2d_curRect_changed(), UI_view2d_sync(), USER_ZOOM_CONTINUE, v2dViewZoomData::v2d, V2D_LOCK_COPY, V2D_LOCKOFS_X, V2D_LOCKOFS_Y, V2D_LOCKZOOM_X, V2D_LOCKZOOM_Y, WM_event_add_notifier(), rctf::xmax, rctf::xmin, rctf::ymax, rctf::ymin, and v2dViewZoomData::zoom_to_mouse_pos.

Referenced by view_zoomdrag_exec(), view_zoomdrag_invoke(), and view_zoomdrag_modal().

view_zoomdrag_cancel()

void view_zoomdrag_cancel ( bContext * C, wmOperator * op )

static

Definition at line 1124 of file view2d_ops.cc.

References C, and view_zoomdrag_exit().

Referenced by VIEW2D_OT_zoom().

view_zoomdrag_exec()

wmOperatorStatus view_zoomdrag_exec ( bContext * C, wmOperator * op )

static

Definition at line 1130 of file view2d_ops.cc.

References C, OPERATOR_FINISHED, view_zoomdrag_apply(), view_zoomdrag_exit(), and view_zoomdrag_init().

Referenced by VIEW2D_OT_zoom().

view_zoomdrag_exit()

void view_zoomdrag_exit ( bContext * C, wmOperator * op )

static

Definition at line 1107 of file view2d_ops.cc.

References C, CTX_wm_manager(), CTX_wm_window(), wmOperator::customdata, View2D::flag, MEM_freeN(), v2dViewZoomData::timer, UI_view2d_zoom_cache_reset(), v2dViewZoomData::v2d, V2D_IS_NAVIGATING, and WM_event_timer_remove().

Referenced by view_zoomdrag_cancel(), view_zoomdrag_exec(), view_zoomdrag_invoke(), and view_zoomdrag_modal().

view_zoomdrag_init()

void view_zoomdrag_init ( bContext * C, wmOperator * op )

static

Definition at line 726 of file view2d_ops.cc.

References BLI_assert, C, CTX_wm_region(), wmOperator::customdata, View2D::flag, MEM_callocN(), v2dViewZoomData::region, ARegion::v2d, v2dViewZoomData::v2d, V2D_IS_NAVIGATING, view_zoom_poll(), and v2dViewZoomData::zoom_to_mouse_pos.

Referenced by view_zoomdrag_exec(), view_zoomdrag_invoke(), view_zoomin_exec(), view_zoomin_invoke(), view_zoomout_exec(), and view_zoomout_invoke().

view_zoomdrag_invoke()

wmOperatorStatus view_zoomdrag_invoke ( bContext * C, wmOperator * op, const wmEvent * event )

static

Definition at line 1139 of file view2d_ops.cc.

References BLI_rctf_size_x(), BLI_rctf_size_y(), BLI_time_now_seconds(), C, clamp_f(), CTX_wm_manager(), CTX_wm_region(), CTX_wm_window(), View2D::cur, wmOperator::customdata, ELEM, fabsf, wmWindow::grabcursor, v2dViewZoomData::invoke_event, View2D::keepofs, View2D::keepzoom, v2dViewZoomData::lastx, v2dViewZoomData::lasty, View2D::maxzoom, MOUSEPAN, MOUSEZOOM, wmEvent::mval, v2dViewZoomData::mx_2d, v2dViewZoomData::my_2d, OPERATOR_FINISHED, OPERATOR_RUNNING_MODAL, wmOperator::ptr, RNA_float_set(), TIMER, v2dViewZoomData::timer, v2dViewZoomData::timer_lastdraw, wmEvent::type, U, UI_view2d_region_to_view(), USER_ZOOM_CONTINUE, USER_ZOOM_HORIZ, USER_ZOOM_INVERT, USER_ZOOM_TO_MOUSEPOS, ARegion::v2d, v2dViewZoomData::v2d, V2D_KEEPASPECT, V2D_LOCKOFS_X, V2D_LOCKOFS_Y, V2D_LOCKZOOM_X, V2D_LOCKZOOM_Y, view_zoomdrag_apply(), view_zoomdrag_exit(), view_zoomdrag_init(), WM_CURSOR_EW_SCROLL, WM_cursor_modal_set(), WM_CURSOR_NS_SCROLL, WM_CURSOR_NSEW_SCROLL, WM_event_absolute_delta_x(), WM_event_absolute_delta_y(), WM_event_add_modal_handler(), WM_event_timer_add(), and v2dViewZoomData::zoom_to_mouse_pos.

Referenced by VIEW2D_OT_zoom().

view_zoomdrag_modal()

wmOperatorStatus view_zoomdrag_modal ( bContext * C, wmOperator * op, const wmEvent * event )

static

Definition at line 1253 of file view2d_ops.cc.

References BLI_rctf_size_x(), BLI_rctf_size_y(), BLI_rcti_size_x(), BLI_rcti_size_y(), C, clamp_f(), CTX_wm_window(), View2D::cur, wmEvent::customdata, wmOperator::customdata, v2dViewZoomData::dx, v2dViewZoomData::dy, ELEM, EVT_ESCKEY, fabsf, v2dViewZoomData::invoke_event, View2D::keepzoom, KM_RELEASE, v2dViewZoomData::lastx, v2dViewZoomData::lasty, len_v2(), View2D::mask, View2D::maxzoom, MOUSEMOVE, OPERATOR_FINISHED, OPERATOR_RUNNING_MODAL, wmOperator::ptr, v2dViewZoomData::region, RNA_float_set(), TIMER, v2dViewZoomData::timer, wmEvent::type, U, USER_ZOOM_CONTINUE, USER_ZOOM_HORIZ, USER_ZOOM_INVERT, USER_ZOOM_SCALE, v2dViewZoomData::v2d, V2D_KEEPASPECT, V2D_LOCKZOOM_X, V2D_LOCKZOOM_Y, wmEvent::val, view_zoomdrag_apply(), view_zoomdrag_exit(), ARegion::winrct, WM_cursor_modal_restore(), rcti::xmin, wmEvent::xy, and rcti::ymin.

Referenced by VIEW2D_OT_zoom().

view_zoomin_exec()

wmOperatorStatus view_zoomin_exec ( bContext * C, wmOperator * op )

static

Definition at line 886 of file view2d_ops.cc.

References C, wmOperator::customdata, OPERATOR_FINISHED, wmOperator::ptr, RNA_float_set(), view_zoom_axis_lock_defaults(), view_zoomdrag_init(), view_zoomstep_apply(), and view_zoomstep_exit().

Referenced by VIEW2D_OT_zoom_in(), and view_zoomin_invoke().

view_zoomin_invoke()

wmOperatorStatus view_zoomin_invoke ( bContext * C, wmOperator * op, const wmEvent * event )

static

Definition at line 907 of file view2d_ops.cc.

References C, CTX_wm_region(), wmOperator::customdata, wmEvent::mval, v2dViewZoomData::mx_2d, v2dViewZoomData::my_2d, U, UI_view2d_region_to_view(), USER_ZOOM_TO_MOUSEPOS, ARegion::v2d, view_zoomdrag_init(), view_zoomin_exec(), and v2dViewZoomData::zoom_to_mouse_pos.

Referenced by VIEW2D_OT_zoom_in().

view_zoomout_exec()

wmOperatorStatus view_zoomout_exec ( bContext * C, wmOperator * op )

static

Definition at line 949 of file view2d_ops.cc.

References C, wmOperator::customdata, OPERATOR_FINISHED, wmOperator::ptr, RNA_float_set(), view_zoom_axis_lock_defaults(), view_zoomdrag_init(), view_zoomstep_apply(), and view_zoomstep_exit().

Referenced by VIEW2D_OT_zoom_out(), and view_zoomout_invoke().

view_zoomout_invoke()

wmOperatorStatus view_zoomout_invoke ( bContext * C, wmOperator * op, const wmEvent * event )

static

Definition at line 971 of file view2d_ops.cc.

References C, CTX_wm_region(), wmOperator::customdata, wmEvent::mval, v2dViewZoomData::mx_2d, v2dViewZoomData::my_2d, U, UI_view2d_region_to_view(), USER_ZOOM_TO_MOUSEPOS, ARegion::v2d, view_zoomdrag_init(), view_zoomout_exec(), and v2dViewZoomData::zoom_to_mouse_pos.

Referenced by VIEW2D_OT_zoom_out().

view_zoomstep_apply()

void view_zoomstep_apply ( bContext * C, wmOperator * op )

static

Definition at line 857 of file view2d_ops.cc.

References C, wmOperator::customdata, wmOperator::ptr, RNA_float_get(), and view_zoomstep_apply_ex().

Referenced by view_zoomin_exec(), and view_zoomout_exec().

view_zoomstep_apply_ex()

void view_zoomstep_apply_ex ( bContext * C, v2dViewZoomData * vzd, const float facx, const float facy )

static

Definition at line 745 of file view2d_ops.cc.

References View2D::align, BLI_rctf_size_x(), BLI_rctf_size_y(), BLI_rcti_size_x(), BLI_rcti_size_y(), C, CTX_wm_area(), CTX_wm_region(), CTX_wm_screen(), View2D::cur, ED_area_tag_redraw(), ED_region_snap_size_apply(), ED_region_snap_size_test(), ED_region_tag_redraw_no_rebuild(), View2D::flag, IN_RANGE_INCL, View2D::keepofs, View2D::keepzoom, View2D::mask, View2D::maxzoom, View2D::minzoom, v2dViewZoomData::mx_2d, v2dViewZoomData::my_2d, NA_EDITED, NC_SCREEN, v2dViewZoomData::region, UI_view2d_curRect_changed(), UI_view2d_sync(), ARegion::v2d, V2D_ALIGN_NO_POS_X, V2D_ALIGN_NO_POS_Y, V2D_KEEPOFS_X, V2D_KEEPOFS_Y, V2D_LIMITZOOM, V2D_LOCK_COPY, V2D_LOCKOFS_X, V2D_LOCKOFS_Y, V2D_LOCKZOOM_X, V2D_LOCKZOOM_Y, V2D_ZOOM_IGNORE_KEEPOFS, WM_event_add_notifier(), rctf::xmax, rctf::xmin, rctf::ymax, rctf::ymin, and v2dViewZoomData::zoom_to_mouse_pos.

Referenced by view_zoomstep_apply().

view_zoomstep_exit()

void view_zoomstep_exit ( bContext * C, wmOperator * op )

static

Definition at line 871 of file view2d_ops.cc.

References C, CTX_wm_area(), wmOperator::customdata, ELEM, View2D::flag, MEM_SAFE_FREE, SPACE_ACTION, SPACE_GRAPH, ScrArea::spacetype, UI_view2d_zoom_cache_reset(), v2dViewZoomData::v2d, and V2D_IS_NAVIGATING.

Referenced by view_zoomin_exec(), and view_zoomout_exec().