Files
test2/source/blender/editors/screen/area_utils.cc
Jacques Lucke 19d4cafb12 Cleanup: move more editors code to c++
This moves the remaining `.c` files in the following `editors` folders to C++:
`physics`, `screen`, `sound`, `space_buttons`, `space_file`, `space_graph` and `space_image`.

One exception is `fsmenu.c` which has platform specific issues on macos and
windows. E.g. the `Carbon/Carbon.h` include also declares a `Collection` type that collides
with ours.

Also see #103343.

Pull Request: https://projects.blender.org/blender/blender/pulls/109918
2023-07-12 13:43:00 +02:00

76 lines
2.1 KiB
C++

/* SPDX-FileCopyrightText: 2023 Blender Foundation
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup edscr
*
* Helper functions for area/region API.
*/
#include "DNA_userdef_types.h"
#include "BKE_screen.h"
#include "BLI_blenlib.h"
#include "BLI_utildefines.h"
#include "RNA_access.h"
#include "RNA_types.h"
#include "WM_message.h"
#include "ED_screen.h"
#include "UI_interface.h"
#include "UI_interface_icons.h"
/* -------------------------------------------------------------------- */
/** \name Generic Tool System Region Callbacks
* \{ */
void ED_region_generic_tools_region_message_subscribe(const wmRegionMessageSubscribeParams *params)
{
struct wmMsgBus *mbus = params->message_bus;
ARegion *region = params->region;
wmMsgSubscribeValue msg_sub_value_region_tag_redraw{};
msg_sub_value_region_tag_redraw.owner = region;
msg_sub_value_region_tag_redraw.user_data = region;
msg_sub_value_region_tag_redraw.notify = ED_region_do_msg_notify_tag_redraw;
WM_msg_subscribe_rna_anon_prop(mbus, WorkSpace, tools, &msg_sub_value_region_tag_redraw);
}
int ED_region_generic_tools_region_snap_size(const ARegion *region, int size, int axis)
{
if (axis == 0) {
/* Using Y axis avoids slight feedback loop when adjusting X. */
const float aspect = BLI_rctf_size_y(&region->v2d.cur) /
(BLI_rcti_size_y(&region->v2d.mask) + 1);
const float column = UI_TOOLBAR_COLUMN / aspect;
const float margin = UI_TOOLBAR_MARGIN / aspect;
const float snap_units[] = {
column + margin,
(2.0f * column) + margin,
(2.7f * column) + margin,
};
int best_diff = INT_MAX;
int best_size = size;
/* Only snap if less than last snap unit. */
if (size <= snap_units[ARRAY_SIZE(snap_units) - 1]) {
for (uint i = 0; i < ARRAY_SIZE(snap_units); i += 1) {
const int test_size = snap_units[i];
const int test_diff = abs(test_size - size);
if (test_diff < best_diff) {
best_size = test_size;
best_diff = test_diff;
}
}
}
return best_size;
}
return size;
}
/** \} */