1 files changed, 231 insertions, 0 deletions
diff --git a/source/blender/editors/space_view3d/view3d_manipulator_navigate.c b/source/blender/editors/space_view3d/view3d_manipulator_navigate.c
new file mode 100644
index 00000000000..553d3b03687
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+++ b/source/blender/editors/space_view3d/view3d_manipulator_navigate.c
@@ -0,0 +1,231 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/space_view3d/view3d_manipulator_navigate.c
+ *  \ingroup spview3d
+ */
+
+#include "BLI_blenlib.h"
+#include "BLI_math.h"
+#include "BLI_utildefines.h"
+
+#include "BKE_context.h"
+#include "BKE_object.h"
+
+#include "DNA_object_types.h"
+
+#include "ED_screen.h"
+#include "ED_manipulator_library.h"
+
+#include "UI_resources.h"
+
+#include "MEM_guardedalloc.h"
+
+#include "RNA_access.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "view3d_intern.h"  /* own include */
+
+/* -------------------------------------------------------------------- */
+/** \name View3D Navigation Manipulator Group
+ * \{ */
+
+/* Offset from screen edge. */
+#define MANIPULATOR_OFFSET_FAC 2.5
+/* Size of main icon. */
+#define MANIPULATOR_SIZE 64
+/* Factor for size of smaller button. */
+#define MANIPULATOR_MINI_FAC 0.4
+/* How much mini buttons offset from the primary. */
+#define MANIPULATOR_MINI_OFFSET_FAC 0.6666f
+
+
+enum {
+	MPR_MOVE = 0,
+	MPR_ROTATE = 1,
+	MPR_ZOOM = 2,
+	/* just buttons */
+	MPR_PERSP_ORTHO = 3,
+	MPR_CAMERA = 4,
+
+	MPR_TOTAL = 5,
+};
+
+struct NavigateManipulatorInfo {
+	const char *opname;
+	const char *manipulator;
+	int icon;
+};
+
+struct NavigateManipulatorInfo g_navigate_params[MPR_TOTAL] = {
+	{
+		.opname = "VIEW3D_OT_move",
+		.manipulator = "MANIPULATOR_WT_button_2d",
+		.icon = ICON_HAND,
+	}, {
+		.opname = "VIEW3D_OT_rotate",
+		.manipulator = "VIEW3D_WT_navigate_rotate",
+		.icon = ICON_NONE,
+	}, {
+		.opname = "VIEW3D_OT_zoom",
+		.manipulator = "MANIPULATOR_WT_button_2d",
+		.icon = ICON_VIEWZOOM,
+	}, {
+		.opname = "VIEW3D_OT_view_persportho",
+		.manipulator = "MANIPULATOR_WT_button_2d",
+		.icon = ICON_MESH_CUBE,
+	}, {
+		.opname = "VIEW3D_OT_viewnumpad",
+		.manipulator = "MANIPULATOR_WT_button_2d",
+		.icon = ICON_OUTLINER_OB_CAMERA,
+	},
+};
+
+struct NavigateWidgetGroup {
+	wmManipulator *mpr_array[MPR_TOTAL];
+	int region_size[2];
+};
+
+static bool WIDGETGROUP_navigate_poll(const bContext *UNUSED(C), wmManipulatorGroupType *UNUSED(wgt))
+{
+	if (U.manipulator_flag & USER_MANIPULATOR_DRAW_NAVIGATE) {
+		return true;
+	}
+	return false;
+
+}
+
+static void WIDGETGROUP_navigate_setup(const bContext *UNUSED(C), wmManipulatorGroup *mgroup)
+{
+	struct NavigateWidgetGroup *navgroup = MEM_callocN(sizeof(struct NavigateWidgetGroup), __func__);
+
+	navgroup->region_size[0] = -1;
+	navgroup->region_size[1] = -1;
+
+	wmOperatorType *ot_viewnumpad = WM_operatortype_find("VIEW3D_OT_viewnumpad", true);
+
+	for (int i = 0; i < MPR_TOTAL; i++) {
+		const struct NavigateManipulatorInfo *info = &g_navigate_params[i];
+		navgroup->mpr_array[i] = WM_manipulator_new(info->manipulator, mgroup, NULL);
+		wmManipulator *mpr = navgroup->mpr_array[i];
+		mpr->flag |= WM_MANIPULATOR_GRAB_CURSOR;
+		RNA_enum_set(mpr->ptr, "draw_options", ED_MANIPULATOR_GRAB_DRAW_FLAG_FILL);
+		copy_v3_fl(mpr->color, 1.0f);
+		mpr->color[3] = 0.4f;
+
+		/* may be overwritten later */
+		mpr->scale_basis = (MANIPULATOR_SIZE * MANIPULATOR_MINI_FAC) / 2;
+		if (info->icon != ICON_NONE) {
+			RNA_enum_set(mpr->ptr, "icon", info->icon);
+		}
+
+		wmOperatorType *ot = WM_operatortype_find(info->opname, true);
+		WM_manipulator_operator_set(mpr, 0, ot, NULL);
+	}
+
+	{
+		wmManipulator *mpr = navgroup->mpr_array[MPR_CAMERA];
+		PointerRNA *ptr = WM_manipulator_operator_set(mpr, 0, ot_viewnumpad, NULL);
+		RNA_enum_set(ptr, "type", RV3D_VIEW_CAMERA);
+	}
+
+	{
+		wmManipulator *mpr = navgroup->mpr_array[MPR_ROTATE];
+		mpr->scale_basis = MANIPULATOR_SIZE / 2;
+		char mapping[6] = {
+			RV3D_VIEW_LEFT,
+			RV3D_VIEW_RIGHT,
+			RV3D_VIEW_FRONT,
+			RV3D_VIEW_BACK,
+			RV3D_VIEW_BOTTOM,
+			RV3D_VIEW_TOP,
+		};
+
+		for (int part_index = 0; part_index < 6; part_index+= 1) {
+			PointerRNA *ptr = WM_manipulator_operator_set(mpr, mapping[part_index], ot_viewnumpad, NULL);
+			RNA_enum_set(ptr, "type", RV3D_VIEW_FRONT + part_index);
+		}
+	}
+
+	mgroup->customdata = navgroup;
+}
+
+static void WIDGETGROUP_navigate_draw_prepare(const bContext *C, wmManipulatorGroup *mgroup)
+{
+	struct NavigateWidgetGroup *navgroup = mgroup->customdata;
+	ARegion *ar = CTX_wm_region(C);
+	const RegionView3D *rv3d = ar->regiondata;
+
+	for (int i = 0; i < 3; i++) {
+		copy_v3_v3(navgroup->mpr_array[MPR_ROTATE]->matrix_offset[i], rv3d->viewmat[i]);
+	}
+
+	if ((navgroup->region_size[0] == ar->winx) &&
+	    (navgroup->region_size[1] == ar->winy))
+	{
+		return;
+	}
+
+	navgroup->region_size[0] = ar->winx;
+	navgroup->region_size[1] = ar->winy;
+
+	const float icon_size = MANIPULATOR_SIZE;
+	const float icon_offset = (icon_size / 2.0) * MANIPULATOR_OFFSET_FAC * U.pixelsize;
+	const float icon_offset_mini = icon_size * MANIPULATOR_MINI_OFFSET_FAC * U.pixelsize;
+	const float co[2] = {ar->winx - icon_offset, ar->winy - icon_offset};
+
+	wmManipulator *mpr;
+	mpr = navgroup->mpr_array[MPR_ROTATE];
+	mpr->matrix_basis[3][0] = co[0];
+	mpr->matrix_basis[3][1] = co[1];
+
+	mpr = navgroup->mpr_array[MPR_MOVE];
+	mpr->matrix_basis[3][0] = co[0] + icon_offset_mini;
+	mpr->matrix_basis[3][1] = co[1] - icon_offset_mini;
+
+	mpr = navgroup->mpr_array[MPR_ZOOM];
+	mpr->matrix_basis[3][0] = co[0] - icon_offset_mini;
+	mpr->matrix_basis[3][1] = co[1] - icon_offset_mini;
+
+	mpr = navgroup->mpr_array[MPR_PERSP_ORTHO];
+	mpr->matrix_basis[3][0] = co[0] + icon_offset_mini;
+	mpr->matrix_basis[3][1] = co[1] + icon_offset_mini;
+
+	mpr = navgroup->mpr_array[MPR_CAMERA];
+	mpr->matrix_basis[3][0] = co[0] - icon_offset_mini;
+	mpr->matrix_basis[3][1] = co[1] + icon_offset_mini;
+}
+
+void VIEW3D_WGT_navigate(wmManipulatorGroupType *wgt)
+{
+	wgt->name = "View3D Navigate";
+	wgt->idname = "VIEW3D_WGT_navigate";
+
+	wgt->flag |= (WM_MANIPULATORGROUPTYPE_PERSISTENT |
+	              WM_MANIPULATORGROUPTYPE_SCALE);
+
+	wgt->poll = WIDGETGROUP_navigate_poll;
+	wgt->setup = WIDGETGROUP_navigate_setup;
+	wgt->draw_prepare = WIDGETGROUP_navigate_draw_prepare;
+}
+
+/** \} */