Differential D270 Diff 797 source/blender/editors/interface/interface_handlers.c

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source/blender/editors/interface/interface_handlers.c

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	#include "BLI_math.h"	#include "BLI_math.h"
	#include "BLI_blenlib.h"	#include "BLI_blenlib.h"
		#include "BLI_linklist.h"
	#include "BLI_utildefines.h"	#include "BLI_utildefines.h"
	#include "BLI_string_cursor_utf8.h"	#include "BLI_string_cursor_utf8.h"

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	/* support dragging toggle buttons */	/* support dragging toggle buttons */
	#define USE_DRAG_TOGGLE	#define USE_DRAG_TOGGLE

		/* support dragging multiple number buttons at once */
		#define USE_DRAG_MULTINUM

	/* so we can avoid very small mouse-moves from jumping away from keyboard navigation [#34936] */	/* so we can avoid very small mouse-moves from jumping away from keyboard navigation [#34936] */
	#define USE_KEYNAV_LIMIT	#define USE_KEYNAV_LIMIT

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	BUTTON_STATE_EXIT	BUTTON_STATE_EXIT
	} uiHandleButtonState;	} uiHandleButtonState;


		#ifdef USE_DRAG_MULTINUM

		/* how far to drag before we check for gesture direction (in pixels),
		* note: half the height of a button is about right... */
		#define DRAG_MULTINUM_THRESHOLD_DRAG_X (UI_UNIT_Y / 2)

		/* how far to drag horizontally before we stop checkign which buttons the gesture spans (in pixels),
		* locking down the buttons so we can drag freely without worrying about vertical movement. */
		#define DRAG_MULTINUM_THRESHOLD_DRAG_Y (UI_UNIT_Y / 2)

		/* how strict to be when detecting a vertical gesture, [0.5 == sloppy], [0.9 == strict], (unsigned dot-product)
		* note: we should be quite strict here, since doing a vertical gesture by accident should be avoided,
		* however with some care a user should be able to do a vertical movement without missing. */
		#define DRAG_MULTINUM_THRESHOLD_VERTICAL (0.75f)


		/* a simple version of uiHandleButtonData when accessing multiple buttons */
		typedef struct uiButMultiState {
		double origvalue;
		rctf rect;
		} uiButMultiState;

		typedef struct uiHandleButtonMulti {
		enum {
		BUTTON_MULTI_INIT_UNSET = 0, /* gesture direction unknown, wait until mouse has moved enough... */
		BUTTON_MULTI_INIT_SETUP, /* vertical gesture detected, flag buttons interactively (UI_BUT_DRAG_MULTI) */
		BUTTON_MULTI_INIT_ENABLE, /* flag buttons finished, apply horizontal motion to active and flagged */
		BUTTON_MULTI_INIT_DISABLE, /* vertical gesture _not_ detected, take no further action */
		} init;

		bool has_mbuts;
		LinkNode *mbuts;

		/* before activating, we need to check gesture direction
		* accumulate signed cursor movement here so we can tell if this is a vertical motion or not. */
		float drag_dir[2];

		/* values copied direct from event->x,y
		* used to detect buttons between the current and initial mouse position */
		int drag_start[2];

		/* store x location once BUTTON_MULTI_INIT_SETUP is set,
		* moving outside this sets BUTTON_MULTI_INIT_ENABLE */
		int drag_lock_x;

		} uiHandleButtonMulti;

		#endif /* USE_DRAG_MULTINUM */



	typedef struct uiHandleButtonData {	typedef struct uiHandleButtonData {
	wmWindowManager *wm;	wmWindowManager *wm;
	wmWindow *window;	wmWindow *window;
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	struct uiKeyNavLock searchbox_keynav_state;	struct uiKeyNavLock searchbox_keynav_state;
	#endif	#endif

		#ifdef USE_DRAG_MULTINUM
		/* Multi-buttons will be updated in unison with the active button. */
		uiHandleButtonMulti multi_data;
		#endif

	/* post activate */	/* post activate */
	uiButtonActivateType posttype;	uiButtonActivateType posttype;
	uiBut *postbut;	uiBut *postbut;
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	static void ui_handle_button_activate(bContext C, ARegion ar, uiBut *but, uiButtonActivateType type);	static void ui_handle_button_activate(bContext C, ARegion ar, uiBut *but, uiButtonActivateType type);
	static void button_timers_tooltip_remove(bContext C, uiBut but);	static void button_timers_tooltip_remove(bContext C, uiBut but);

		#ifdef USE_DRAG_MULTINUM
		static void ui_multibut_restore(uiHandleButtonData data, uiBlock block);
		static uiButMultiState ui_multibut_lookup(uiHandleButtonData data, const uiBut *but);
		#endif

	/* buttons clipboard */	/* buttons clipboard */
	static ColorBand but_copypaste_coba = {0};	static ColorBand but_copypaste_coba = {0};
	static CurveMapping but_copypaste_curve = {0};	static CurveMapping but_copypaste_curve = {0};
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	data->applied = true;	data->applied = true;
	}	}

		#ifdef USE_DRAG_MULTINUM
		static void ui_apply_mbut_states(bContext C, uiHandleButtonData data, uiBlock *block)
		{
		ARegion *ar = data->region;
		const double value_delta = data->value - data->origvalue;
		uiBut *but;

		BLI_assert(data->multi_data.init == BUTTON_MULTI_INIT_ENABLE);

		for (but = block->buttons.first; but; but = but->next) {
		if (but->flag & UI_BUT_DRAG_MULTI) {

		/* mbut_states for delta */
		uiButMultiState *mbut_state = ui_multibut_lookup(data, but);
		if (mbut_state) {
		void *active_back;

		ui_button_execute_begin(C, ar, but, &active_back);
		BLI_assert(active_back == NULL);
		/* no need to check 'data->state' here */
		if (data->str) {
		/* entering text (set all) */
		but->active->value = data->value;
		ui_set_but_string(C, but, data->str);
		}
		else {
		/* dragging (use delta) */
		but->active->value = mbut_state->origvalue + value_delta;
		}
		ui_button_execute_end(C, ar, but, active_back);
		}
		else {
		/* highly unlikely */
		printf("%s: cant find button\n", __func__);
		}
		/* end */

		}
		}
		}
		#endif /* USE_DRAG_MULTINUM */

	static void ui_apply_but_NUM(bContext C, uiBut but, uiHandleButtonData *data)	static void ui_apply_but_NUM(bContext C, uiBut but, uiHandleButtonData *data)
	{	{
	if (data->str) {	if (data->str) {
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	break;	break;
	}	}

		#ifdef USE_DRAG_MULTINUM
		if (data->multi_data.has_mbuts) {
		if (data->multi_data.init == BUTTON_MULTI_INIT_ENABLE) {
		if (data->cancel) {
		ui_multibut_restore(data, block);
		}
		else {
		ui_apply_mbut_states(C, data, block);
		}
		}
		}
		#endif

	but->editstr = editstr;	but->editstr = editstr;
	but->editval = editval;	but->editval = editval;
	but->editvec = editvec;	but->editvec = editvec;
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	return changed;	return changed;
	}	}


		#ifdef USE_DRAG_MULTINUM
		/* small multi-but api */
		static void ui_multibut_add(uiHandleButtonData data, uiBut but)
		{
		uiButMultiState *mbut_state;

		BLI_assert(but->flag & UI_BUT_DRAG_MULTI);
		BLI_assert(data->multi_data.has_mbuts);


		mbut_state = MEM_callocN(sizeof(*mbut_state), __func__);
		mbut_state->rect = but->rect;
		mbut_state->origvalue = ui_get_but_val(but);

		BLI_linklist_prepend(&data->multi_data.mbuts, mbut_state);
		}

		static uiButMultiState ui_multibut_lookup(uiHandleButtonData data, const uiBut *but)
		{
		LinkNode *l;
		const float xy[2] = {BLI_rctf_cent_x(&but->rect), BLI_rctf_cent_y(&but->rect)};

		for (l = data->multi_data.mbuts; l; l = l->next) {
		uiButMultiState *mbut_state;

		mbut_state = l->link;

		if (BLI_rctf_isect_pt_v(&mbut_state->rect, xy)) {
		return mbut_state;
		}
		}

		return NULL;
		}

		static void ui_multibut_restore(uiHandleButtonData data, uiBlock block)
		{
		uiBut *but;

		for (but = block->buttons.first; but; but = but->next) {
		if (but->flag & UI_BUT_DRAG_MULTI) {
		uiButMultiState *mbut_state = ui_multibut_lookup(data, but);
		if (mbut_state) {
		ui_set_but_val(but, mbut_state->origvalue);
		}
		}
		}
		}

		static void ui_multibut_free(uiHandleButtonData *data)
		{
		BLI_linklist_freeN(data->multi_data.mbuts);
		data->multi_data.mbuts = NULL;
		}



		static bool ui_but_is_compatible(uiBut but_a, uiBut but_b)
		{
		if (but_a->type != but_b->type)
		return false;
		if (but_a->pointype != but_b->pointype)
		return false;

		if (but_a->rnaprop) {
		if (but_a->rnapoin.type != but_b->rnapoin.type)
		return false;
		if (but_a->rnapoin.data != but_b->rnapoin.data)
		return false;
		if (but_a->rnapoin.id.data != but_b->rnapoin.id.data)
		return false;
		if (RNA_property_type(but_a->rnaprop) != RNA_property_type(but_b->rnaprop))
		return false;
		if (RNA_property_subtype(but_a->rnaprop) != RNA_property_subtype(but_b->rnaprop))
		return false;
		}

		return true;
		}

		static bool ui_tag_mbut_states(uiBut but_active, uiHandleButtonData data, const wmEvent *event)
		{
		uiBut *but;
		float seg[2][2];
		bool changed = false;

		seg[0][0] = data->multi_data.drag_start[0];
		seg[0][1] = data->multi_data.drag_start[1];

		seg[1][0] = event->x;
		seg[1][1] = event->y;

		BLI_assert(data->multi_data.init == BUTTON_MULTI_INIT_SETUP);

		ui_window_to_block_fl(data->region, but_active->block, &seg[0][0], &seg[0][1]);
		ui_window_to_block_fl(data->region, but_active->block, &seg[1][0], &seg[1][1]);

		data->multi_data.has_mbuts = false;

		/* follow ui_but_find_mouse_over_ex logic */
		for (but = but_active->block->buttons.first; but; but = but->next) {
		bool drag_prev = false;
		bool drag_curr = false;

		/* re-set each time */
		if (but->flag & UI_BUT_DRAG_MULTI) {
		but->flag &= ~UI_BUT_DRAG_MULTI;
		drag_prev = true;
		}

		if (ui_is_but_interactive(but, false)) {

		/* drag checks */
		if (but_active != but) {
		if (ui_but_is_compatible(but_active, but)) {

		/* finally check for overlap */
		if (BLI_rctf_isect_segment(&but->rect, seg[0], seg[1])) {

		but->flag \|= UI_BUT_DRAG_MULTI;
		data->multi_data.has_mbuts = true;
		drag_curr = true;
		}
		}
		}
		/* -- */
		}

		changed \|= (drag_prev != drag_curr);
		}

		return changed;
		}

		static void ui_create_mbut_states(uiBut but_active, uiHandleButtonData data)
		{
		uiBut *but;

		BLI_assert(data->multi_data.init == BUTTON_MULTI_INIT_SETUP);

		for (but = but_active->block->buttons.first; but; but = but->next) {
		if (but->flag & UI_BUT_DRAG_MULTI) {
		ui_multibut_add(data, but);
		}
		}
		}

		#endif /* USE_DRAG_MULTINUM */


	static int ui_do_but_NUM(bContext C, uiBlock block, uiBut but, uiHandleButtonData data, const wmEvent *event)	static int ui_do_but_NUM(bContext C, uiBlock block, uiBut but, uiHandleButtonData data, const wmEvent *event)
	{	{
	int mx, my; /* mouse location scaled to fit the UI */	int mx, my; /* mouse location scaled to fit the UI */
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	button_activate_state(C, but, BUTTON_STATE_EXIT);	button_activate_state(C, but, BUTTON_STATE_EXIT);
	retval = WM_UI_HANDLER_BREAK;	retval = WM_UI_HANDLER_BREAK;
	}	}

		#ifdef USE_DRAG_MULTINUM
		copy_v2_v2_int(data->multi_data.drag_start, &event->x);
		#endif
	}	}

	}	}
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	const enum eSnapType snap = ui_event_to_snap(event);	const enum eSnapType snap = ui_event_to_snap(event);
	float fac;	float fac;

		#ifdef USE_DRAG_MULTINUM
		data->multi_data.drag_dir[0] += fabsf(data->draglastx - mx);
		data->multi_data.drag_dir[1] += fabsf(data->draglasty - my);
		#endif

	fac = 1.0f;	fac = 1.0f;
	if (event->shift) fac /= 10.0f;	if (event->shift) fac /= 10.0f;
	if (event->alt) fac /= 20.0f;	if (event->alt) fac /= 20.0f;

	if (ui_numedit_but_NUM(but, data, (ui_is_a_warp_but(but) ? screen_mx : mx), snap, fac))	if (ui_numedit_but_NUM(but, data, (ui_is_a_warp_but(but) ? screen_mx : mx), snap, fac))
	ui_numedit_apply(C, block, but, data);	ui_numedit_apply(C, block, but, data);
		#ifdef USE_DRAG_MULTINUM
		else if (data->multi_data.has_mbuts) {
		if (data->multi_data.init == BUTTON_MULTI_INIT_ENABLE) {
		ui_apply_mbut_states(C, data, block);
		}
		}
		#endif
	}	}
	retval = WM_UI_HANDLER_BREAK;	retval = WM_UI_HANDLER_BREAK;
	}	}
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	retval = WM_UI_HANDLER_BREAK;	retval = WM_UI_HANDLER_BREAK;
	}	}

		data->draglastx = mx;
		data->draglasty = my;

	return retval;	return retval;
	}	}

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	}	}
	}	}

		#ifdef USE_DRAG_MULTINUM
		if (data) {
		if (event->type == MOUSEMOVE) {
		if (ELEM3(but->type, NUM, NUMSLI, TEX)) {
		/* initialize! */

		if (data->multi_data.init == BUTTON_MULTI_INIT_UNSET) {
		/* --> (BUTTON_MULTI_INIT_SETUP \| BUTTON_MULTI_INIT_DISABLE) */

		const float margin_y = DRAG_MULTINUM_THRESHOLD_DRAG_Y / sqrtf(block->aspect);

		/* check if we have a vertical gesture */
		if (len_squared_v2(data->multi_data.drag_dir) > (margin_y * margin_y)) {
		const float dir_nor_y[2] = {0, 1};
		float dir_nor_drag[2];

		normalize_v2_v2(dir_nor_drag, data->multi_data.drag_dir);

		if (fabsf(dot_v2v2(dir_nor_drag, dir_nor_y)) > DRAG_MULTINUM_THRESHOLD_VERTICAL) {
		data->multi_data.init = BUTTON_MULTI_INIT_SETUP;
		data->multi_data.drag_lock_x = event->x;
		}
		else {
		data->multi_data.init = BUTTON_MULTI_INIT_DISABLE;
		}
		}
		}
		else if (data->multi_data.init == BUTTON_MULTI_INIT_SETUP) {
		/* --> (BUTTON_MULTI_INIT_ENABLE) */
		const float margin_x = DRAG_MULTINUM_THRESHOLD_DRAG_X / sqrtf(block->aspect);

		/* check if we're dont setting buttons */
		if ((data->str && ELEM(data->state, BUTTON_STATE_TEXT_EDITING, BUTTON_STATE_NUM_EDITING)) \|\|
		(abs(data->multi_data.drag_lock_x - event->x) > margin_x))
		{
		ui_create_mbut_states(but, data);
		data->multi_data.init = BUTTON_MULTI_INIT_ENABLE;
		}
		}

		if (data->multi_data.init == BUTTON_MULTI_INIT_SETUP) {
		if (ui_tag_mbut_states(but, data, event)) {
		ED_region_tag_redraw(data->region);
		}
		}
		}
		}
		}
		#endif

	return retval;	return retval;
	}	}
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	if (!onfree)	if (!onfree)
	ui_apply_button(C, block, but, data, false);	ui_apply_button(C, block, but, data, false);

		#ifdef USE_DRAG_MULTINUM
		if (data->multi_data.has_mbuts) {
		for (bt = but->block->buttons.first; bt; bt = bt->next) {
		bt->flag &= ~UI_BUT_DRAG_MULTI;
		}

		ui_multibut_free(data);
		}
		#endif

	/* if this button is in a menu, this will set the button return	/* if this button is in a menu, this will set the button return
	* value to the button value and the menu return value to ok, the	* value to the button value and the menu return value to ok, the
	* menu return value will be picked up and the menu will close */	* menu return value will be picked up and the menu will close */
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	ui_do_button(C, but->block, but, &event);	ui_do_button(C, but->block, but, &event);
	}	}

	void ui_button_execute_do(struct bContext C, struct ARegion ar, uiBut *but)	void ui_button_execute_begin(struct bContext UNUSED(C), struct ARegion ar, uiBut but, void *active_back)
	{	{
	/* note: ideally we would not have to change 'but->active' howevwer	/* note: ideally we would not have to change 'but->active' howevwer
	* some functions we call don't use data (as they should be doing) */	* some functions we call don't use data (as they should be doing) */
	void *active_back = but->active;	uiHandleButtonData *data;
	uiHandleButtonData *data = MEM_callocN(sizeof(uiHandleButtonData), "uiHandleButtonData_Fake");	*active_back = but->active;
		data = MEM_callocN(sizeof(uiHandleButtonData), "uiHandleButtonData_Fake");
	but->active = data;	but->active = data;
	data->region = ar;	data->region = ar;
	ui_apply_button(C, but->block, but, data, true);	}

		void ui_button_execute_end(struct bContext C, struct ARegion UNUSED(ar), uiBut but, void active_back)
		{
		ui_apply_button(C, but->block, but, but->active, true);
	/* use onfree event so undo is handled by caller and apply is already done above */	/* use onfree event so undo is handled by caller and apply is already done above */
	ui_apply_autokey(C, but);	ui_apply_autokey(C, but);
	button_activate_exit((bContext *)C, but, data, false, true);	button_activate_exit((bContext *)C, but, but->active, false, true);
	but->active = active_back;	but->active = active_back;
	}	}

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