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27fb75fec265fbea31f3976e829b405a87b9970e
blender-archive/source/blender/editors/interface/interface_panel.c

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/*
* 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.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*/
/** \file
* \ingroup edinterface
*/
/* a full doc with API notes can be found in
* bf-blender/trunk/blender/doc/guides/interface_API.txt */
#include <ctype.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "MEM_guardedalloc.h"
#include "PIL_time.h"
#include "BLI_blenlib.h"
#include "BLI_math.h"
#include "BLI_utildefines.h"
#include "BLT_translation.h"
#include "DNA_screen_types.h"
#include "DNA_userdef_types.h"
#include "BKE_context.h"
#include "BKE_screen.h"
#include "BLF_api.h"
#include "WM_api.h"
#include "WM_types.h"
#include "ED_screen.h"
#include "UI_interface.h"
#include "UI_interface_icons.h"
#include "UI_resources.h"
#include "UI_view2d.h"
#include "GPU_batch_presets.h"
#include "GPU_immediate.h"
#include "GPU_matrix.h"
#include "GPU_state.h"
#include "interface_intern.h"
/*********************** defines and structs ************************/
#define ANIMATION_TIME 0.30
#define ANIMATION_INTERVAL 0.02
#define PNL_LAST_ADDED 1
#define PNL_ACTIVE 2
#define PNL_WAS_ACTIVE 4
#define PNL_ANIM_ALIGN 8
#define PNL_NEW_ADDED 16
#define PNL_FIRST 32
/* only show pin header button for pinned panels */
#define USE_PIN_HIDDEN
/* the state of the mouse position relative to the panel */
typedef enum uiPanelMouseState {
PANEL_MOUSE_OUTSIDE, /* mouse is not in the panel */
PANEL_MOUSE_INSIDE_CONTENT, /* mouse is in the actual panel content */
PANEL_MOUSE_INSIDE_HEADER, /* mouse is in the panel header */
PANEL_MOUSE_INSIDE_SCALE, /* mouse is inside panel scale widget */
} uiPanelMouseState;
typedef enum uiHandlePanelState {
PANEL_STATE_DRAG,
PANEL_STATE_DRAG_SCALE,
PANEL_STATE_WAIT_UNTAB,
PANEL_STATE_ANIMATION,
PANEL_STATE_EXIT,
} uiHandlePanelState;
typedef struct uiHandlePanelData {
uiHandlePanelState state;
/* animation */
wmTimer *animtimer;
double starttime;
/* dragging */
bool is_drag_drop;
int startx, starty;
int startofsx, startofsy;
int startsizex, startsizey;
float start_cur_xmin, start_cur_ymin;
} uiHandlePanelData;
typedef struct PanelSort {
Panel *panel, *orig;
} PanelSort;
static int get_panel_real_size_y(const Panel *panel);
static void panel_activate_state(const bContext *C, Panel *panel, uiHandlePanelState state);
static int compare_panel(const void *a1, const void *a2);
static bool panel_type_context_poll(PanelType *panel_type, const char *context);
static void panel_title_color_get(bool show_background, uchar color[4])
{
if (show_background) {
UI_GetThemeColor4ubv(TH_TITLE, color);
}
else {
/* Use menu colors for floating panels. */
bTheme *btheme = UI_GetTheme();
const uiWidgetColors *wcol = &btheme->tui.wcol_menu_back;
copy_v4_v4_uchar(color, (const uchar *)wcol->text);
}
}
/*********************** space specific code ************************/
/* temporary code to remove all sbuts stuff from panel code */
/* SpaceProperties.align */
typedef enum eSpaceButtons_Align {
BUT_HORIZONTAL = 0,
BUT_VERTICAL = 1,
BUT_AUTO = 2,
} eSpaceButtons_Align;
static int panel_aligned(const ScrArea *area, const ARegion *region)
{
if (area->spacetype == SPACE_PROPERTIES && region->regiontype == RGN_TYPE_WINDOW) {
return BUT_VERTICAL;
}
else if (area->spacetype == SPACE_USERPREF && region->regiontype == RGN_TYPE_WINDOW) {
return BUT_VERTICAL;
}
else if (area->spacetype == SPACE_FILE && region->regiontype == RGN_TYPE_CHANNELS) {
return BUT_VERTICAL;
}
else if (area->spacetype == SPACE_IMAGE && region->regiontype == RGN_TYPE_PREVIEW) {
return BUT_VERTICAL;
}
else if (ELEM(region->regiontype,
RGN_TYPE_UI,
RGN_TYPE_TOOLS,
RGN_TYPE_TOOL_PROPS,
RGN_TYPE_HUD,
RGN_TYPE_NAV_BAR,
RGN_TYPE_EXECUTE)) {
return BUT_VERTICAL;
}
return 0;
}
static bool panel_active_animation_changed(ListBase *lb, Panel **pa_animation, bool *no_animation)
{
LISTBASE_FOREACH (Panel *, panel, lb) {
/* Detect panel active flag changes. */
if (!(panel->type && panel->type->parent)) {
if ((panel->runtime_flag & PNL_WAS_ACTIVE) && !(panel->runtime_flag & PNL_ACTIVE)) {
return true;
}
if (!(panel->runtime_flag & PNL_WAS_ACTIVE) && (panel->runtime_flag & PNL_ACTIVE)) {
return true;
}
}
if ((panel->runtime_flag & PNL_ACTIVE) && !(panel->flag & PNL_CLOSED)) {
if (panel_active_animation_changed(&panel->children, pa_animation, no_animation)) {
return true;
}
}
/* Detect animation. */
if (panel->activedata) {
uiHandlePanelData *data = panel->activedata;
if (data->state == PANEL_STATE_ANIMATION) {
*pa_animation = panel;
}
else {
/* Don't animate while handling other interaction. */
*no_animation = true;
}
}
if ((panel->runtime_flag & PNL_ANIM_ALIGN) && !(*pa_animation)) {
*pa_animation = panel;
}
}
return false;
}
static bool panels_need_realign(ScrArea *area, ARegion *region, Panel **r_panel_animation)
{
*r_panel_animation = NULL;
if (area->spacetype == SPACE_PROPERTIES && region->regiontype == RGN_TYPE_WINDOW) {
SpaceProperties *sbuts = area->spacedata.first;
if (sbuts->mainbo != sbuts->mainb) {
return true;
}
}
else if (area->spacetype == SPACE_IMAGE && region->regiontype == RGN_TYPE_PREVIEW) {
return true;
}
else if (area->spacetype == SPACE_FILE && region->regiontype == RGN_TYPE_CHANNELS) {
return true;
}
/* Detect if a panel was added or removed. */
Panel *panel_animation = NULL;
bool no_animation = false;
if (panel_active_animation_changed(&region->panels, &panel_animation, &no_animation)) {
return true;
}
/* Detect panel marked for animation, if we're not already animating. */
if (panel_animation) {
if (!no_animation) {
*r_panel_animation = panel_animation;
}
return true;
}
return false;
}
/********* Functions for instanced panels. ***********/
static Panel *UI_panel_add_instanced_ex(
ScrArea *area, ARegion *region, ListBase *panels, PanelType *panel_type, int list_index)
{
Panel *panel = MEM_callocN(sizeof(Panel), "instanced panel");
panel->type = panel_type;
BLI_strncpy(panel->panelname, panel_type->idname, sizeof(panel->panelname));
panel->runtime.list_index = list_index;
/* Add the panel's children too. Although they aren't instanced panels, we can still use this
* function to create them, as UI_panel_begin does other things we don't need to do. */
LISTBASE_FOREACH (LinkData *, child, &panel_type->children) {
PanelType *child_type = child->data;
UI_panel_add_instanced_ex(area, region, &panel->children, child_type, list_index);
}
/* Make sure the panel is added to the end of the display-order as well. This is needed for
* loading existing files.
*
* Note: We could use special behavior to place it after the panel that starts the list of
* instanced panels, but that would add complexity that isn't needed for now. */
int max_sortorder = 0;
LISTBASE_FOREACH (Panel *, existing_panel, panels) {
if (existing_panel->sortorder > max_sortorder) {
max_sortorder = existing_panel->sortorder;
}
}
panel->sortorder = max_sortorder + 1;
BLI_addtail(panels, panel);
return panel;
}
/**
* Called in situations where panels need to be added dynamically rather than having only one panel
* corresponding to each PanelType.
*/
Panel *UI_panel_add_instanced(
ScrArea *area, ARegion *region, ListBase *panels, char *panel_idname, int list_index)
{
ARegionType *region_type = region->type;
PanelType *panel_type = BLI_findstring(
&region_type->paneltypes, panel_idname, offsetof(PanelType, idname));
if (panel_type == NULL) {
printf("Panel type '%s' not found.\n", panel_idname);
return NULL;
}
return UI_panel_add_instanced_ex(area, region, panels, panel_type, list_index);
}
/**
* Find a unique key to append to the idname for the lookup to the panel's #uiBlock. Needed for
* instanced panels, where there can be multiple with the same type and idname.
*/
void UI_list_panel_unique_str(Panel *panel, char *r_name)
{
snprintf(r_name, LIST_PANEL_UNIQUE_STR_LEN, "%d", panel->runtime.list_index);
}
/**
* Remove the #uiBlock corresponding to a panel. The lookup is needed because panels don't store
* a reference to their corresponding #uiBlock.
*/
static void panel_free_block(ARegion *region, Panel *panel)
{
BLI_assert(panel->type);
char block_name[BKE_ST_MAXNAME + LIST_PANEL_UNIQUE_STR_LEN];
strncpy(block_name, panel->type->idname, BKE_ST_MAXNAME);
char unique_panel_str[LIST_PANEL_UNIQUE_STR_LEN];
UI_list_panel_unique_str(panel, unique_panel_str);
strncat(block_name, unique_panel_str, LIST_PANEL_UNIQUE_STR_LEN);
LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
if (STREQ(block->name, block_name)) {
BLI_remlink(&region->uiblocks, block);
UI_block_free(NULL, block);
break; /* Only delete one block for this panel. */
}
}
}
/**
* Free a panel and it's children.
*
* \note The only panels that should need to be deleted at runtime are panels with the
* #PNL_INSTANCED flag set.
*/
static void panel_delete(ARegion *region, ListBase *panels, Panel *panel)
{
/* Recursively delete children. */
LISTBASE_FOREACH_MUTABLE (Panel *, child, &panel->children) {
panel_delete(region, &panel->children, child);
}
BLI_freelistN(&panel->children);
panel_free_block(region, panel);
BLI_remlink(panels, panel);
if (panel->activedata) {
MEM_freeN(panel->activedata);
}
MEM_freeN(panel);
}
/**
* Remove instanced panels from the region's panel list.
*
* \note Can be called with NULL \a C, but it should be avoided because
* handlers might not be removed.
*/
void UI_panels_free_instanced(bContext *C, ARegion *region)
{
/* Delete panels with the instanced flag. */
LISTBASE_FOREACH_MUTABLE (Panel *, panel, &region->panels) {
if ((panel->type != NULL) && (panel->type->flag & PNL_INSTANCED)) {
/* Make sure the panel's handler is removed before deleting it. */
if (C != NULL && panel->activedata != NULL) {
panel_activate_state(C, panel, PANEL_STATE_EXIT);
}
panel_delete(region, &region->panels, panel);
}
}
}
/**
* Check if the instanced panels in the region's panels correspond to the list of data the panels
* represent. Returns false if the panels have been reordered or if the types from the list data
* don't match in any way.
*
* \param data: The list of data to check against the instanced panels.
* \param panel_idname_func: Function to find the panel type idname for each item in the data list.
* For a readability and generality, this lookup happens separately for each type of panel list.
*/
bool UI_panel_list_matches_data(ARegion *region,
ListBase *data,
uiListPanelIDFromDataFunc panel_idname_func)
{
int data_len = BLI_listbase_count(data);
int i = 0;
Link *data_link = data->first;
LISTBASE_FOREACH (Panel *, panel, &region->panels) {
if (panel->type != NULL && panel->type->flag & PNL_INSTANCED) {
/* The panels were reordered by drag and drop. */
if (panel->flag & PNL_INSTANCED_LIST_ORDER_CHANGED) {
return false;
}
/* We reached the last data item before the last instanced panel. */
if (data_link == NULL) {
return false;
}
/* Check if the panel type matches the panel type from the data item. */
char panel_idname[MAX_NAME];
panel_idname_func(data_link, panel_idname);
if (!STREQ(panel_idname, panel->type->idname)) {
return false;
}
data_link = data_link->next;
i++;
}
}
/* If we didn't make it to the last list item, the panel list isn't complete. */
if (i != data_len) {
return false;
}
return true;
}
static void reorder_instanced_panel_list(bContext *C, ARegion *region, Panel *drag_panel)
{
/* Without a type we cannot access the reorder callback. */
if (drag_panel->type == NULL) {
return;
}
/* Don't reorder if this instanced panel doesn't support drag and drop reordering. */
if (drag_panel->type->reorder == NULL) {
return;
}
char *context = drag_panel->type->context;
/* Find how many instanced panels with this context string. */
int list_panels_len = 0;
LISTBASE_FOREACH (Panel *, panel, &region->panels) {
if (panel->type) {
if (panel_type_context_poll(panel->type, context)) {
if (panel->type->flag & PNL_INSTANCED) {
list_panels_len++;
}
}
}
}
/* Sort the matching instanced panels by their display order. */
PanelSort *panel_sort = MEM_callocN(list_panels_len * sizeof(*panel_sort), "instancedpanelsort");
PanelSort *sort_index = panel_sort;
LISTBASE_FOREACH (Panel *, panel, &region->panels) {
if (panel->type) {
if (panel_type_context_poll(panel->type, context)) {
if (panel->type->flag & PNL_INSTANCED) {
sort_index->panel = MEM_dupallocN(panel);
sort_index->orig = panel;
sort_index++;
}
}
}
}
qsort(panel_sort, list_panels_len, sizeof(*panel_sort), compare_panel);
/* Find how many of those panels are above this panel. */
int move_to_index = 0;
for (; move_to_index < list_panels_len; move_to_index++) {
if (panel_sort[move_to_index].orig == drag_panel) {
break;
}
}
/* Free panel sort array. */
int i = 0;
for (sort_index = panel_sort; i < list_panels_len; i++, sort_index++) {
MEM_freeN(sort_index->panel);
}
MEM_freeN(panel_sort);
/* Don't reorder the panel didn't change order after being dropped. */
if (move_to_index == drag_panel->runtime.list_index) {
return;
}
/* Set the bit to tell the interface to instanced the list. */
drag_panel->flag |= PNL_INSTANCED_LIST_ORDER_CHANGED;
/* Finally, move this panel's list item to the new index in its list. */
drag_panel->type->reorder(C, drag_panel, move_to_index);
}
/**
* Recursive implementation for #UI_panel_set_expand_from_list_data.
*
* \return Whether the closed flag for the panel or any subpanels changed.
*/
static bool panel_set_expand_from_list_data_recursive(Panel *panel, short flag, short *flag_index)
{
bool open = (flag & (1 << *flag_index));
bool changed = (open == (bool)(panel->flag & PNL_CLOSEDY));
if (open) {
panel->flag &= ~PNL_CLOSEDY;
}
else {
panel->flag |= PNL_CLOSEDY;
}
LISTBASE_FOREACH (Panel *, child, &panel->children) {
*flag_index = *flag_index + 1;
changed |= panel_set_expand_from_list_data_recursive(child, flag, flag_index);
}
return changed;
}
/**
* Set the expansion of the panel and its subpanels from the flag stored by the list data
* corresponding to this panel. The flag has expansion stored in each bit in depth first
* order.
*/
void UI_panel_set_expand_from_list_data(const bContext *C, Panel *panel)
{
BLI_assert(panel->type != NULL);
BLI_assert(panel->type->flag & PNL_INSTANCED);
if (panel->type->get_list_data_expand_flag == NULL) {
/* Instanced panel doesn't support loading expansion. */
return;
}
short expand_flag = panel->type->get_list_data_expand_flag(C, panel);
short flag_index = 0;
/* Start panel animation if the open state was changed. */
if (panel_set_expand_from_list_data_recursive(panel, expand_flag, &flag_index)) {
panel_activate_state(C, panel, PANEL_STATE_ANIMATION);
}
}
/**
* Recursive implementation for #set_panels_list_data_expand_flag.
*/
static void get_panel_expand_flag(Panel *panel, short *flag, short *flag_index)
{
bool open = !(panel->flag & PNL_CLOSEDY);
if (open) {
*flag |= (1 << *flag_index);
}
else {
*flag &= ~(1 << *flag_index);
}
LISTBASE_FOREACH (Panel *, child, &panel->children) {
*flag_index = *flag_index + 1;
get_panel_expand_flag(child, flag, flag_index);
}
}
/**
* Call the callback to store the panel and subpanel expansion settings in the list item that
* corresponds to this panel.
*
* \note This needs to iterate through all of the regions panels because the panel with changed
* expansion could have been the subpanel of a instanced panel, meaning it might not know
* which list item it corresponds to.
*/
static void set_panels_list_data_expand_flag(const bContext *C, ARegion *region)
{
LISTBASE_FOREACH (Panel *, panel, &region->panels) {
PanelType *panel_type = panel->type;
if (panel_type == NULL) {
continue;
}
/* Check for #PNL_ACTIVE so we only set the expand flag for active panels. */
if (panel_type->flag & PNL_INSTANCED && panel->runtime_flag & PNL_ACTIVE) {
short expand_flag = 0; /* Initialize to quite complaining compiler, value not used. */
short flag_index = 0;
get_panel_expand_flag(panel, &expand_flag, &flag_index);
if (panel->type->set_list_data_expand_flag) {
panel->type->set_list_data_expand_flag(C, panel, expand_flag);
}
}
}
}
/****************************** panels ******************************/
/**
* Set flag state for a panel and its subpanels.
*
* \return True if this function changed any of the flags, false if it didn't.
*/
static bool panel_set_flag_recursive(Panel *panel, int flag, bool value)
{
short flag_original = panel->flag;
SET_FLAG_FROM_TEST(panel->flag, value, flag);
bool changed = (flag_original != panel->flag);
LISTBASE_FOREACH (Panel *, child, &panel->children) {
changed |= panel_set_flag_recursive(child, flag, value);
}
return changed;
}
static void panels_collapse_all(const bContext *C,
ScrArea *area,
ARegion *region,
const Panel *from_panel)
{
const bool has_category_tabs = UI_panel_category_is_visible(region);
const char *category = has_category_tabs ? UI_panel_category_active_get(region, false) : NULL;
const int flag = ((panel_aligned(area, region) == BUT_HORIZONTAL) ? PNL_CLOSEDX : PNL_CLOSEDY);
const PanelType *from_pt = from_panel->type;
LISTBASE_FOREACH (Panel *, panel, &region->panels) {
PanelType *pt = panel->type;
/* close panels with headers in the same context */
if (pt && from_pt && !(pt->flag & PNL_NO_HEADER)) {
if (!pt->context[0] || !from_pt->context[0] || STREQ(pt->context, from_pt->context)) {
if ((panel->flag & PNL_PIN) || !category || !pt->category[0] ||
STREQ(pt->category, category)) {
panel->flag &= ~PNL_CLOSED;
panel->flag |= flag;
}
}
}
}
set_panels_list_data_expand_flag(C, region);
}
static bool panel_type_context_poll(PanelType *panel_type, const char *context)
{
if (panel_type->context[0] && STREQ(panel_type->context, context)) {
return true;
}
return false;
}
Panel *UI_panel_find_by_type(ListBase *lb, PanelType *pt)
{
const char *idname = pt->idname;
LISTBASE_FOREACH (Panel *, panel, lb) {
if (STREQLEN(panel->panelname, idname, sizeof(panel->panelname))) {
return panel;
}
}
return NULL;
}
/**
* \note \a panel should be return value from #UI_panel_find_by_type and can be NULL.
*/
Panel *UI_panel_begin(ScrArea *area,
ARegion *region,
ListBase *lb,
uiBlock *block,
PanelType *pt,
Panel *panel,
bool *r_open)
{
Panel *panel_last;
const char *drawname = CTX_IFACE_(pt->translation_context, pt->label);
const char *idname = pt->idname;
const bool newpanel = (panel == NULL);
int align = panel_aligned(area, region);
if (!newpanel) {
panel->type = pt;
}
else {
/* new panel */
panel = MEM_callocN(sizeof(Panel), "new panel");
panel->type = pt;
BLI_strncpy(panel->panelname, idname, sizeof(panel->panelname));
if (pt->flag & PNL_DEFAULT_CLOSED) {
if (align == BUT_VERTICAL) {
panel->flag |= PNL_CLOSEDY;
}
else {
panel->flag |= PNL_CLOSEDX;
}
}
panel->ofsx = 0;
panel->ofsy = 0;
panel->sizex = 0;
panel->sizey = 0;
panel->blocksizex = 0;
panel->blocksizey = 0;
panel->runtime_flag |= PNL_NEW_ADDED;
BLI_addtail(lb, panel);
}
/* Do not allow closed panels without headers! Else user could get "disappeared" UI! */
if ((pt->flag & PNL_NO_HEADER) && (panel->flag & PNL_CLOSED)) {
panel->flag &= ~PNL_CLOSED;
/* Force update of panels' positions! */
panel->sizex = 0;
panel->sizey = 0;
panel->blocksizex = 0;
panel->blocksizey = 0;
}
BLI_strncpy(panel->drawname, drawname, sizeof(panel->drawname));
/* if a new panel is added, we insert it right after the panel
* that was last added. this way new panels are inserted in the
* right place between versions */
for (panel_last = lb->first; panel_last; panel_last = panel_last->next) {
if (panel_last->runtime_flag & PNL_LAST_ADDED) {
BLI_remlink(lb, panel);
BLI_insertlinkafter(lb, panel_last, panel);
break;
}
}
if (newpanel) {
panel->sortorder = (panel_last) ? panel_last->sortorder + 1 : 0;
LISTBASE_FOREACH (Panel *, panel_next, lb) {
if (panel_next != panel && panel_next->sortorder >= panel->sortorder) {
panel_next->sortorder++;
}
}
}
if (panel_last) {
panel_last->runtime_flag &= ~PNL_LAST_ADDED;
}
/* assign to block */
block->panel = panel;
panel->runtime_flag |= PNL_ACTIVE | PNL_LAST_ADDED;
if (region->alignment == RGN_ALIGN_FLOAT) {
UI_block_theme_style_set(block, UI_BLOCK_THEME_STYLE_POPUP);
}
*r_open = false;
if (panel->flag & PNL_CLOSED) {
return panel;
}
*r_open = true;
return panel;
}
static float panel_region_offset_x_get(const ARegion *region, int align)
{
if (UI_panel_category_is_visible(region)) {
if (align == BUT_VERTICAL &&
(RGN_ALIGN_ENUM_FROM_MASK(region->alignment) != RGN_ALIGN_RIGHT)) {
return UI_PANEL_CATEGORY_MARGIN_WIDTH;
}
}
return 0;
}
void UI_panel_end(
const ScrArea *area, const ARegion *region, uiBlock *block, int width, int height, bool open)
{
Panel *panel = block->panel;
/* Set panel size excluding children. */
panel->blocksizex = width;
panel->blocksizey = height;
/* Compute total panel size including children. */
LISTBASE_FOREACH (Panel *, pachild, &panel->children) {
if (pachild->runtime_flag & PNL_ACTIVE) {
width = max_ii(width, pachild->sizex);
height += get_panel_real_size_y(pachild);
}
}
/* Update total panel size. */
if (panel->runtime_flag & PNL_NEW_ADDED) {
panel->runtime_flag &= ~PNL_NEW_ADDED;
panel->sizex = width;
panel->sizey = height;
}
else {
int old_sizex = panel->sizex, old_sizey = panel->sizey;
int old_region_ofsx = panel->runtime.region_ofsx;
/* update width/height if non-zero */
if (width != 0) {
panel->sizex = width;
}
if (height != 0 || open) {
panel->sizey = height;
}
/* check if we need to do an animation */
if (panel->sizex != old_sizex || panel->sizey != old_sizey) {
panel->runtime_flag |= PNL_ANIM_ALIGN;
panel->ofsy += old_sizey - panel->sizey;
}
int align = panel_aligned(area, region);
panel->runtime.region_ofsx = panel_region_offset_x_get(region, align);
if (old_region_ofsx != panel->runtime.region_ofsx) {
panel->runtime_flag |= PNL_ANIM_ALIGN;
}
}
}
static void ui_offset_panel_block(uiBlock *block)
{
const uiStyle *style = UI_style_get_dpi();
/* compute bounds and offset */
ui_block_bounds_calc(block);
int ofsy = block->panel->sizey - style->panelspace;
LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
but->rect.ymin += ofsy;
but->rect.ymax += ofsy;
}
block->rect.xmax = block->panel->sizex;
block->rect.ymax = block->panel->sizey;
block->rect.xmin = block->rect.ymin = 0.0;
}
/**************************** drawing *******************************/
/* triangle 'icon' for panel header */
void UI_draw_icon_tri(float x, float y, char dir, const float color[4])
{
float f3 = 0.05 * U.widget_unit;
float f5 = 0.15 * U.widget_unit;
float f7 = 0.25 * U.widget_unit;
if (dir == 'h') {
UI_draw_anti_tria(x - f3, y - f5, x - f3, y + f5, x + f7, y, color);
}
else if (dir == 't') {
UI_draw_anti_tria(x - f5, y - f7, x + f5, y - f7, x, y + f3, color);
}
else { /* 'v' = vertical, down */
UI_draw_anti_tria(x - f5, y + f3, x + f5, y + f3, x, y - f7, color);
}
}
static void ui_draw_anti_x(uint pos, float x1, float y1, float x2, float y2)
{
/* set antialias line */
GPU_line_smooth(true);
GPU_blend(true);
GPU_line_width(2.0);
immBegin(GPU_PRIM_LINES, 4);
immVertex2f(pos, x1, y1);
immVertex2f(pos, x2, y2);
immVertex2f(pos, x1, y2);
immVertex2f(pos, x2, y1);
immEnd();
GPU_line_smooth(false);
GPU_blend(false);
}
/* x 'icon' for panel header */
static void ui_draw_x_icon(uint pos, float x, float y)
{
ui_draw_anti_x(pos, x, y, x + 9.375f, y + 9.375f);
}
#define PNL_ICON UI_UNIT_X /* could be UI_UNIT_Y too */
static void ui_draw_panel_scalewidget(uint pos, const rcti *rect)
{
float xmin, xmax, dx;
float ymin, ymax, dy;
xmin = rect->xmax - PNL_HEADER + 2;
xmax = rect->xmax - 3;
ymin = rect->ymin + 3;
ymax = rect->ymin + PNL_HEADER - 2;
dx = 0.5f * (xmax - xmin);
dy = 0.5f * (ymax - ymin);
GPU_blend(true);
immUniformColor4ub(255, 255, 255, 50);
immBegin(GPU_PRIM_LINES, 4);
immVertex2f(pos, xmin, ymin);
immVertex2f(pos, xmax, ymax);
immVertex2f(pos, xmin + dx, ymin);
immVertex2f(pos, xmax, ymax - dy);
immEnd();
immUniformColor4ub(0, 0, 0, 50);
immBegin(GPU_PRIM_LINES, 4);
immVertex2f(pos, xmin, ymin + 1);
immVertex2f(pos, xmax, ymax + 1);
immVertex2f(pos, xmin + dx, ymin + 1);
immVertex2f(pos, xmax, ymax - dy + 1);
immEnd();
GPU_blend(false);
}
/* For button layout next to label. */
void UI_panel_label_offset(uiBlock *block, int *r_x, int *r_y)
{
Panel *panel = block->panel;
const bool is_subpanel = (panel->type && panel->type->parent);
*r_x = UI_UNIT_X * 1.0f;
*r_y = UI_UNIT_Y * 1.5f;
if (is_subpanel) {
*r_x += (0.7f * UI_UNIT_X);
}
}
static void ui_draw_aligned_panel_header(
uiStyle *style, uiBlock *block, const rcti *rect, char dir, const bool show_background)
{
Panel *panel = block->panel;
rcti hrect;
int pnl_icons;
const char *activename = panel->drawname;
const bool is_subpanel = (panel->type && panel->type->parent);
uiFontStyle *fontstyle = (is_subpanel) ? &style->widgetlabel : &style->paneltitle;
uchar col_title[4];
/* + 0.001f to avoid flirting with float inaccuracy */
if (panel->control & UI_PNL_CLOSE) {
pnl_icons = (panel->labelofs + (2.0f * PNL_ICON)) / block->aspect + 0.001f;
}
else {
pnl_icons = (panel->labelofs + (1.1f * PNL_ICON)) / block->aspect + 0.001f;
}
/* draw text label */
panel_title_color_get(show_background, col_title);
col_title[3] = 255;
hrect = *rect;
if (dir == 'h') {
hrect.xmin = rect->xmin + pnl_icons;
hrect.ymin -= 2.0f / block->aspect;
UI_fontstyle_draw(fontstyle,
&hrect,
activename,
col_title,
&(struct uiFontStyleDraw_Params){
.align = UI_STYLE_TEXT_LEFT,
});
}
else {
/* ignore 'pnl_icons', otherwise the text gets offset horizontally
* + 0.001f to avoid flirting with float inaccuracy
*/
hrect.xmin = rect->xmin + (PNL_ICON + 5) / block->aspect + 0.001f;
UI_fontstyle_draw_rotated(fontstyle, &hrect, activename, col_title);
}
}
/* panel integrated in buttonswindow, tool/property lists etc */
void ui_draw_aligned_panel(uiStyle *style,
uiBlock *block,
const rcti *rect,
const bool show_pin,
const bool show_background)
{
Panel *panel = block->panel;
rctf itemrect;
float color[4];
const bool is_closed_x = (panel->flag & PNL_CLOSEDX) ? true : false;
const bool is_closed_y = (panel->flag & PNL_CLOSEDY) ? true : false;
const bool is_subpanel = (panel->type && panel->type->parent);
const bool show_drag = (!is_subpanel &&
/* FIXME(campbell): currently no background means floating panel which
* can't be dragged. This may be changed in future. */
show_background);
const int panel_col = is_subpanel ? TH_PANEL_SUB_BACK : TH_PANEL_BACK;
const bool draw_box_style = (panel->type && panel->type->flag & PNL_DRAW_BOX);
/* Use the theme for box widgets for box-style panels. */
uiWidgetColors *box_wcol = NULL;
if (draw_box_style) {
bTheme *btheme = UI_GetTheme();
box_wcol = &btheme->tui.wcol_box;
}
uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
if (panel->type && (panel->type->flag & PNL_NO_HEADER)) {
if (show_background) {
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformThemeColor(panel_col);
immRectf(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
immUnbindProgram();
}
return;
}
/* Calculate header rect with + 0.001f to prevent flicker due to float inaccuracy */
rcti headrect = {
rect->xmin, rect->xmax, rect->ymax, rect->ymax + floor(PNL_HEADER / block->aspect + 0.001f)};
/* Draw a panel and header backdrops with an opaque box backdrop for box style panels. */
if (draw_box_style && !is_subpanel) {
/* Expand the top a tiny bit to give header buttons equal size above and below. */
rcti box_rect = {rect->xmin,
rect->xmax,
(is_closed_x || is_closed_y) ? headrect.ymin : rect->ymin,
headrect.ymax + U.pixelsize};
ui_draw_box_opaque(&box_rect, UI_CNR_ALL);
/* Mimick the border between aligned box widgets for the bottom of the header. */
if (!(is_closed_x || is_closed_y)) {
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
GPU_blend(true);
immUniformColor4ubv(box_wcol->outline);
immRectf(pos, rect->xmin, headrect.ymin - U.pixelsize, rect->xmax, headrect.ymin);
uchar emboss_col[4];
UI_GetThemeColor4ubv(TH_WIDGET_EMBOSS, emboss_col);
immUniformColor4ubv(emboss_col);
immRectf(pos,
rect->xmin,
headrect.ymin - U.pixelsize,
rect->xmax,
headrect.ymin - U.pixelsize - 1);
GPU_blend(false);
immUnbindProgram();
}
}
/* Draw the header backdrop. */
if (show_background && !is_subpanel && !draw_box_style) {
float minx = rect->xmin;
float maxx = is_closed_x ? (minx + PNL_HEADER / block->aspect) : rect->xmax;
float y = headrect.ymax;
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
GPU_blend(true);
/* draw with background color */
immUniformThemeColor(TH_PANEL_HEADER);
immRectf(pos, minx, headrect.ymin, maxx, y);
immBegin(GPU_PRIM_LINES, 4);
immVertex2f(pos, minx, y);
immVertex2f(pos, maxx, y);
immVertex2f(pos, minx, y);
immVertex2f(pos, maxx, y);
immEnd();
GPU_blend(false);
immUnbindProgram();
}
/* draw optional pin icon */
#ifdef USE_PIN_HIDDEN
if (show_pin && (block->panel->flag & PNL_PIN))
#else
if (show_pin)
#endif
{
uchar col_title[4];
panel_title_color_get(show_background, col_title);
GPU_blend(true);
UI_icon_draw_ex(headrect.xmax - ((PNL_ICON * 2.2f) / block->aspect),
headrect.ymin + (5.0f / block->aspect),
(panel->flag & PNL_PIN) ? ICON_PINNED : ICON_UNPINNED,
(block->aspect * U.inv_dpi_fac),
1.0f,
0.0f,
col_title,
false);
GPU_blend(false);
}
/* horizontal title */
rcti titlerect = headrect;
if (is_subpanel) {
titlerect.xmin += (0.7f * UI_UNIT_X) / block->aspect + 0.001f;
}
if (is_closed_x == false) {
ui_draw_aligned_panel_header(style, block, &titlerect, 'h', show_background);
if (show_drag) {
/* itemrect smaller */
const float scale = 0.7;
itemrect.xmax = headrect.xmax - (0.2f * UI_UNIT_X);
itemrect.xmin = itemrect.xmax - BLI_rcti_size_y(&headrect);
itemrect.ymin = headrect.ymin;
itemrect.ymax = headrect.ymax;
BLI_rctf_scale(&itemrect, scale);
GPU_matrix_push();
GPU_matrix_translate_2f(itemrect.xmin, itemrect.ymin);
const int col_tint = 84;
float col_high[4], col_dark[4];
UI_GetThemeColorShade4fv(TH_PANEL_HEADER, col_tint, col_high);
UI_GetThemeColorShade4fv(TH_PANEL_BACK, -col_tint, col_dark);
GPUBatch *batch = GPU_batch_preset_panel_drag_widget(
U.pixelsize, col_high, col_dark, BLI_rcti_size_y(&headrect) * scale);
GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_FLAT_COLOR);
GPU_batch_draw(batch);
GPU_matrix_pop();
}
}
/* Draw panel backdrop. */
if (is_closed_y) {
/* skip */
}
else if (is_closed_x) {
/* draw vertical title */
ui_draw_aligned_panel_header(style, block, &headrect, 'v', show_background);
pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
}
/* an open panel */
else {
/* in some occasions, draw a border */
if (panel->flag & PNL_SELECT && !is_subpanel) {
float radius;
if (panel->control & UI_PNL_SOLID) {
UI_draw_roundbox_corner_set(UI_CNR_ALL);
radius = 8.0f;
}
else if (draw_box_style) {
UI_draw_roundbox_corner_set(UI_CNR_ALL);
radius = box_wcol->roundness * U.widget_unit;
}
else {
UI_draw_roundbox_corner_set(UI_CNR_NONE);
radius = 0.0f;
}
UI_GetThemeColorShade4fv(TH_BACK, -120, color);
UI_draw_roundbox_aa(false,
0.5f + rect->xmin,
0.5f + rect->ymin,
0.5f + rect->xmax,
0.5f + headrect.ymax + 1,
radius,
color);
}
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
GPU_blend(true);
/* Draw panel backdrop if it wasn't already been drawn by the single opaque round box earlier.
* Note: Sub-panels blend with panels, so they can't be opaque. */
if (show_background && !(draw_box_style && !is_subpanel)) {
/* Draw the bottom subpanels . */
if (draw_box_style) {
if (panel->next) {
immUniformThemeColor(panel_col);
immRectf(
pos, rect->xmin + U.pixelsize, rect->ymin, rect->xmax - U.pixelsize, rect->ymax);
}
else {
/* Change the width a little bit to line up with sides. */
UI_draw_roundbox_corner_set(UI_CNR_BOTTOM_RIGHT | UI_CNR_BOTTOM_LEFT);
UI_GetThemeColor4fv(panel_col, color);
UI_draw_roundbox_aa(true,
rect->xmin + U.pixelsize,
rect->ymin + U.pixelsize,
rect->xmax - U.pixelsize,
rect->ymax,
box_wcol->roundness * U.widget_unit,
color);
}
}
else {
immUniformThemeColor(panel_col);
immRectf(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
}
}
if (panel->control & UI_PNL_SCALE) {
ui_draw_panel_scalewidget(pos, rect);
}
immUnbindProgram();
}
uchar col_title[4];
panel_title_color_get(show_background, col_title);
/* draw optional close icon */
if (panel->control & UI_PNL_CLOSE) {
const int ofsx = 6;
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor3ubv(col_title);
ui_draw_x_icon(pos, rect->xmin + 2 + ofsx, rect->ymax + 2);
immUnbindProgram();
}
/* draw collapse icon */
/* itemrect smaller */
itemrect.xmin = titlerect.xmin;
itemrect.xmax = itemrect.xmin + BLI_rcti_size_y(&titlerect);
itemrect.ymin = titlerect.ymin;
itemrect.ymax = titlerect.ymax;
BLI_rctf_scale(&itemrect, 0.25f);
{
float tria_color[4];
rgb_uchar_to_float(tria_color, col_title);
tria_color[3] = 1.0f;
if (is_closed_y) {
ui_draw_anti_tria_rect(&itemrect, 'h', tria_color);
}
else if (is_closed_x) {
ui_draw_anti_tria_rect(&itemrect, 'h', tria_color);
}
else {
ui_draw_anti_tria_rect(&itemrect, 'v', tria_color);
}
}
}
/************************** panel alignment *************************/
static int get_panel_header(const Panel *panel)
{
if (panel->type && (panel->type->flag & PNL_NO_HEADER)) {
return 0;
}
return PNL_HEADER;
}
static int get_panel_size_y(const Panel *panel)
{
if (panel->type && (panel->type->flag & PNL_NO_HEADER)) {
return panel->sizey;
}
return PNL_HEADER + panel->sizey;
}
static int get_panel_real_size_y(const Panel *panel)
{
int sizey = (panel->flag & PNL_CLOSED) ? 0 : panel->sizey;
if (panel->type && (panel->type->flag & PNL_NO_HEADER)) {
return sizey;
}
return PNL_HEADER + sizey;
}
int UI_panel_size_y(const Panel *panel)
{
return get_panel_real_size_y(panel);
}
/* this function is needed because uiBlock and Panel itself don't
* change sizey or location when closed */
static int get_panel_real_ofsy(Panel *panel)
{
if (panel->flag & PNL_CLOSEDY) {
return panel->ofsy + panel->sizey;
}
else {
return panel->ofsy;
}
}
static int get_panel_real_ofsx(Panel *panel)
{
if (panel->flag & PNL_CLOSEDX) {
return panel->ofsx + get_panel_header(panel);
}
else {
return panel->ofsx + panel->sizex;
}
}
bool UI_panel_is_dragging(const struct Panel *panel)
{
uiHandlePanelData *data = panel->activedata;
if (!data) {
return false;
}
return data->is_drag_drop;
}
/**
* \note about sorting;
* the sortorder has a lower value for new panels being added.
* however, that only works to insert a single panel, when more new panels get
* added the coordinates of existing panels and the previously stored to-be-inserted
* panels do not match for sorting
*/
static int find_leftmost_panel(const void *a1, const void *a2)
{
const PanelSort *ps1 = a1, *ps2 = a2;
if (ps1->panel->ofsx > ps2->panel->ofsx) {
return 1;
}
else if (ps1->panel->ofsx < ps2->panel->ofsx) {
return -1;
}
else if (ps1->panel->sortorder > ps2->panel->sortorder) {
return 1;
}
else if (ps1->panel->sortorder < ps2->panel->sortorder) {
return -1;
}
return 0;
}
static int find_highest_panel(const void *a1, const void *a2)
{
const PanelSort *ps1 = a1, *ps2 = a2;
/* stick uppermost header-less panels to the top of the region -
* prevent them from being sorted (multiple header-less panels have to be sorted though) */
if (ps1->panel->type->flag & PNL_NO_HEADER && ps2->panel->type->flag & PNL_NO_HEADER) {
/* skip and check for ofs and sortorder below */
}
else if (ps1->panel->type->flag & PNL_NO_HEADER) {
return -1;
}
else if (ps2->panel->type->flag & PNL_NO_HEADER) {
return 1;
}
if (ps1->panel->ofsy + ps1->panel->sizey < ps2->panel->ofsy + ps2->panel->sizey) {
return 1;
}
else if (ps1->panel->ofsy + ps1->panel->sizey > ps2->panel->ofsy + ps2->panel->sizey) {
return -1;
}
else if (ps1->panel->sortorder > ps2->panel->sortorder) {
return 1;
}
else if (ps1->panel->sortorder < ps2->panel->sortorder) {
return -1;
}
return 0;
}
static int compare_panel(const void *a1, const void *a2)
{
const PanelSort *ps1 = a1, *ps2 = a2;
if (ps1->panel->sortorder > ps2->panel->sortorder) {
return 1;
}
else if (ps1->panel->sortorder < ps2->panel->sortorder) {
return -1;
}
return 0;
}
static void align_sub_panels(Panel *panel)
{
/* Position sub panels. */
int ofsy = panel->ofsy + panel->sizey - panel->blocksizey;
LISTBASE_FOREACH (Panel *, pachild, &panel->children) {
if (pachild->runtime_flag & PNL_ACTIVE) {
pachild->ofsx = panel->ofsx;
pachild->ofsy = ofsy - get_panel_size_y(pachild);
ofsy -= get_panel_real_size_y(pachild);
if (pachild->children.first) {
align_sub_panels(pachild);
}
}
}
}
/* this doesn't draw */
/* returns 1 when it did something */
static bool uiAlignPanelStep(ScrArea *area, ARegion *region, const float fac, const bool drag)
{
PanelSort *ps, *panelsort, *psnext;
int a, tot = 0;
bool done;
int align = panel_aligned(area, region);
/* count active, not tabbed panels */
LISTBASE_FOREACH (Panel *, panel, &region->panels) {
if (panel->runtime_flag & PNL_ACTIVE) {
tot++;
}
}
if (tot == 0) {
return 0;
}
/* extra; change close direction? */
LISTBASE_FOREACH (Panel *, panel, &region->panels) {
if (panel->runtime_flag & PNL_ACTIVE) {
if ((panel->flag & PNL_CLOSEDX) && (align == BUT_VERTICAL)) {
panel->flag ^= PNL_CLOSED;
}
else if ((panel->flag & PNL_CLOSEDY) && (align == BUT_HORIZONTAL)) {
panel->flag ^= PNL_CLOSED;
}
}
}
/* sort panels */
panelsort = MEM_callocN(tot * sizeof(PanelSort), "panelsort");
ps = panelsort;
LISTBASE_FOREACH (Panel *, panel, &region->panels) {
if (panel->runtime_flag & PNL_ACTIVE) {
ps->panel = MEM_dupallocN(panel);
ps->orig = panel;
ps++;
}
}
if (drag) {
/* while we are dragging, we sort on location and update sortorder */
if (align == BUT_VERTICAL) {
qsort(panelsort, tot, sizeof(PanelSort), find_highest_panel);
}
else {
qsort(panelsort, tot, sizeof(PanelSort), find_leftmost_panel);
}
for (ps = panelsort, a = 0; a < tot; a++, ps++) {
ps->orig->sortorder = a;
}
}
else {
/* otherwise use sortorder */
qsort(panelsort, tot, sizeof(PanelSort), compare_panel);
}
/* no smart other default start loc! this keeps switching f5/f6/etc compatible */
ps = panelsort;
ps->panel->runtime.region_ofsx = panel_region_offset_x_get(region, align);
ps->panel->ofsx = 0;
ps->panel->ofsy = -get_panel_size_y(ps->panel);
ps->panel->ofsx += ps->panel->runtime.region_ofsx;
/* Extra margin if the panel is a box style panel. */
if (ps->panel->type && ps->panel->type->flag & PNL_DRAW_BOX) {
ps->panel->ofsx += UI_PANEL_BOX_STYLE_MARGIN;
ps->panel->ofsy -= UI_PANEL_BOX_STYLE_MARGIN;
}
for (a = 0; a < tot - 1; a++, ps++) {
psnext = ps + 1;
if (align == BUT_VERTICAL) {
bool use_box = ps->panel->type && ps->panel->type->flag & PNL_DRAW_BOX;
bool use_box_next = psnext->panel->type && psnext->panel->type->flag & PNL_DRAW_BOX;
psnext->panel->ofsx = ps->panel->ofsx;
psnext->panel->ofsy = get_panel_real_ofsy(ps->panel) - get_panel_size_y(psnext->panel);
/* Extra margin for box style panels. */
if (use_box || use_box_next) {
psnext->panel->ofsy -= UI_PANEL_BOX_STYLE_MARGIN;
}
if (use_box && !use_box_next) {
psnext->panel->ofsx -= UI_PANEL_BOX_STYLE_MARGIN;
}
else if (!use_box && use_box_next) {
psnext->panel->ofsx += UI_PANEL_BOX_STYLE_MARGIN;
}
}
else {
psnext->panel->ofsx = get_panel_real_ofsx(ps->panel);
psnext->panel->ofsy = ps->panel->ofsy + get_panel_size_y(ps->panel) -
get_panel_size_y(psnext->panel);
}
}
/* we interpolate */
done = false;
ps = panelsort;
for (a = 0; a < tot; a++, ps++) {
if ((ps->panel->flag & PNL_SELECT) == 0) {
if ((ps->orig->ofsx != ps->panel->ofsx) || (ps->orig->ofsy != ps->panel->ofsy)) {
ps->orig->ofsx = round_fl_to_int(fac * (float)ps->panel->ofsx +
(1.0f - fac) * (float)ps->orig->ofsx);
ps->orig->ofsy = round_fl_to_int(fac * (float)ps->panel->ofsy +
(1.0f - fac) * (float)ps->orig->ofsy);
done = true;
}
}
}
/* set locations for tabbed and sub panels */
LISTBASE_FOREACH (Panel *, panel, &region->panels) {
if (panel->runtime_flag & PNL_ACTIVE) {
if (panel->children.first) {
align_sub_panels(panel);
}
}
}
/* free panelsort array */
for (ps = panelsort, a = 0; a < tot; a++, ps++) {
MEM_freeN(ps->panel);
}
MEM_freeN(panelsort);
return done;
}
static void ui_panels_size(ScrArea *area, ARegion *region, int *r_x, int *r_y)
{
int align = panel_aligned(area, region);
int sizex = 0;
int sizey = 0;
/* compute size taken up by panels, for setting in view2d */
LISTBASE_FOREACH (Panel *, panel, &region->panels) {
if (panel->runtime_flag & PNL_ACTIVE) {
int pa_sizex, pa_sizey;
if (align == BUT_VERTICAL) {
pa_sizex = panel->ofsx + panel->sizex;
pa_sizey = get_panel_real_ofsy(panel);
}
else {
pa_sizex = get_panel_real_ofsx(panel) + panel->sizex;
pa_sizey = panel->ofsy + get_panel_size_y(panel);
}
sizex = max_ii(sizex, pa_sizex);
sizey = min_ii(sizey, pa_sizey);
}
}
if (sizex == 0) {
sizex = UI_PANEL_WIDTH;
}
if (sizey == 0) {
sizey = -UI_PANEL_WIDTH;
}
*r_x = sizex;
*r_y = sizey;
}
static void ui_do_animate(bContext *C, Panel *panel)
{
uiHandlePanelData *data = panel->activedata;
ScrArea *area = CTX_wm_area(C);
ARegion *region = CTX_wm_region(C);
float fac;
fac = (PIL_check_seconds_timer() - data->starttime) / ANIMATION_TIME;
fac = min_ff(sqrtf(fac), 1.0f);
/* for max 1 second, interpolate positions */
if (uiAlignPanelStep(area, region, fac, false)) {
ED_region_tag_redraw(region);
}
else {
fac = 1.0f;
}
if (fac >= 1.0f) {
/* Store before data is freed. */
const bool is_drag_drop = data->is_drag_drop;
panel_activate_state(C, panel, PANEL_STATE_EXIT);
if (is_drag_drop) {
/* Note: doing this in #panel_activate_state would require removing const for context in many
* other places. */
reorder_instanced_panel_list(C, region, panel);
}
return;
}
}
static void panel_list_clear_active(ListBase *lb)
{
/* set all panels as inactive, so that at the end we know
* which ones were used */
LISTBASE_FOREACH (Panel *, panel, lb) {
if (panel->runtime_flag & PNL_ACTIVE) {
panel->runtime_flag = PNL_WAS_ACTIVE;
}
else {
panel->runtime_flag = 0;
}
panel_list_clear_active(&panel->children);
}
}
void UI_panels_begin(const bContext *UNUSED(C), ARegion *region)
{
panel_list_clear_active(&region->panels);
}
/* only draws blocks with panels */
void UI_panels_end(const bContext *C, ARegion *region, int *r_x, int *r_y)
{
ScrArea *area = CTX_wm_area(C);
Panel *panel, *panel_first;
/* offset contents */
LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
if (block->active && block->panel) {
ui_offset_panel_block(block);
}
}
/* re-align, possibly with animation */
if (panels_need_realign(area, region, &panel)) {
if (panel) {
panel_activate_state(C, panel, PANEL_STATE_ANIMATION);
}
else {
uiAlignPanelStep(area, region, 1.0, false);
}
}
/* tag first panel */
panel_first = NULL;
LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
if (block->active && block->panel) {
if (!panel_first || block->panel->sortorder < panel_first->sortorder) {
panel_first = block->panel;
}
}
}
if (panel_first) {
panel_first->runtime_flag |= PNL_FIRST;
}
/* compute size taken up by panel */
ui_panels_size(area, region, r_x, r_y);
}
void UI_panels_draw(const bContext *C, ARegion *region)
{
if (region->alignment != RGN_ALIGN_FLOAT) {
UI_ThemeClearColor(TH_BACK);
}
/* Draw panels, selected on top. Also in reverse order, because
* UI blocks are added in reverse order and we need child panels
* to draw on top. */
LISTBASE_FOREACH_BACKWARD (uiBlock *, block, &region->uiblocks) {
if (block->active && block->panel && !(block->panel->flag & PNL_SELECT)) {
UI_block_draw(C, block);
}
}
LISTBASE_FOREACH_BACKWARD (uiBlock *, block, &region->uiblocks) {
if (block->active && block->panel && (block->panel->flag & PNL_SELECT)) {
UI_block_draw(C, block);
}
}
}
void UI_panels_scale(ARegion *region, float new_width)
{
LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
if (block->panel) {
float fac = new_width / (float)block->panel->sizex;
block->panel->sizex = new_width;
LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
but->rect.xmin *= fac;
but->rect.xmax *= fac;
}
}
}
}
/* ------------ panel merging ---------------- */
static void check_panel_overlap(ARegion *region, Panel *panel)
{
Panel *panel_list;
/* also called with (panel == NULL) for clear */
for (panel_list = region->panels.first; panel_list; panel_list = panel_list->next) {
panel_list->flag &= ~PNL_OVERLAP;
if (panel && (panel_list != panel)) {
if (panel_list->runtime_flag & PNL_ACTIVE) {
float safex = 0.2, safey = 0.2;
if (panel_list->flag & PNL_CLOSEDX) {
safex = 0.05;
}
else if (panel_list->flag & PNL_CLOSEDY) {
safey = 0.05;
}
else if (panel->flag & PNL_CLOSEDX) {
safex = 0.05;
}
else if (panel->flag & PNL_CLOSEDY) {
safey = 0.05;
}
if (panel_list->ofsx > panel->ofsx - safex * panel->sizex) {
if (panel_list->ofsx + panel_list->sizex < panel->ofsx + (1.0f + safex) * panel->sizex) {
if (panel_list->ofsy > panel->ofsy - safey * panel->sizey) {
if (panel_list->ofsy + panel_list->sizey <
panel->ofsy + (1.0f + safey) * panel->sizey) {
panel_list->flag |= PNL_OVERLAP;
}
}
}
}
}
}
}
}
/************************ panel dragging ****************************/
#define DRAG_REGION_PAD (PNL_HEADER * 0.5)
static void ui_do_drag(const bContext *C, const wmEvent *event, Panel *panel)
{
uiHandlePanelData *data = panel->activedata;
ScrArea *area = CTX_wm_area(C);
ARegion *region = CTX_wm_region(C);
short align = panel_aligned(area, region);
/* Keep the drag position in the region with a small pad to keep the panel visible. */
int x = clamp_i(event->x, region->winrct.xmin, region->winrct.xmax + DRAG_REGION_PAD);
int y = clamp_i(event->y, region->winrct.ymin, region->winrct.ymax + DRAG_REGION_PAD);
float dx = (float)(x - data->startx);
float dy = (float)(y - data->starty);
/* Adjust for region zoom. */
dx *= (float)BLI_rctf_size_x(&region->v2d.cur) / (float)BLI_rcti_size_x(&region->winrct);
dy *= (float)BLI_rctf_size_y(&region->v2d.cur) / (float)BLI_rcti_size_y(&region->winrct);
if (data->state == PANEL_STATE_DRAG_SCALE) {
panel->sizex = MAX2(data->startsizex + dx, UI_PANEL_MINX);
if (data->startsizey - dy < UI_PANEL_MINY) {
dy = -UI_PANEL_MINY + data->startsizey;
}
panel->sizey = data->startsizey - dy;
panel->ofsy = data->startofsy + dy;
}
else {
/* reset the panel snapping, to allow dragging away from snapped edges */
panel->snap = PNL_SNAP_NONE;
/* Add the movement of the view due to edge scrolling while dragging. */
dx += ((float)region->v2d.cur.xmin - data->start_cur_xmin);
dy += ((float)region->v2d.cur.ymin - data->start_cur_ymin);
panel->ofsx = data->startofsx + round_fl_to_int(dx);
panel->ofsy = data->startofsy + round_fl_to_int(dy);
check_panel_overlap(region, panel);
if (align) {
uiAlignPanelStep(area, region, 0.2f, true);
}
}
ED_region_tag_redraw(region);
}
#undef DRAG_REGION_PAD
/******************* region level panel interaction *****************/
static uiPanelMouseState ui_panel_mouse_state_get(const uiBlock *block,
const Panel *panel,
const int mx,
const int my)
{
/* open panel */
if (panel->flag & PNL_CLOSEDX) {
if ((block->rect.xmin <= mx) && (block->rect.xmin + PNL_HEADER >= mx)) {
return PANEL_MOUSE_INSIDE_HEADER;
}
}
/* outside left/right side */
else if ((block->rect.xmin > mx) || (block->rect.xmax < mx)) {
/* pass */
}
else if ((block->rect.ymax <= my) && (block->rect.ymax + PNL_HEADER >= my)) {
return PANEL_MOUSE_INSIDE_HEADER;
}
/* open panel */
else if (!(panel->flag & PNL_CLOSEDY)) {
if (panel->control & UI_PNL_SCALE) {
if (block->rect.xmax - PNL_HEADER <= mx) {
if (block->rect.ymin + PNL_HEADER >= my) {
return PANEL_MOUSE_INSIDE_SCALE;
}
}
}
if ((block->rect.xmin <= mx) && (block->rect.xmax >= mx)) {
if ((block->rect.ymin <= my) && (block->rect.ymax + PNL_HEADER >= my)) {
return PANEL_MOUSE_INSIDE_CONTENT;
}
}
}
return PANEL_MOUSE_OUTSIDE;
}
typedef struct uiPanelDragCollapseHandle {
bool was_first_open;
int xy_init[2];
} uiPanelDragCollapseHandle;
static void ui_panel_drag_collapse_handler_remove(bContext *UNUSED(C), void *userdata)
{
uiPanelDragCollapseHandle *dragcol_data = userdata;
MEM_freeN(dragcol_data);
}
static void ui_panel_drag_collapse(bContext *C,
uiPanelDragCollapseHandle *dragcol_data,
const int xy_dst[2])
{
ScrArea *area = CTX_wm_area(C);
ARegion *region = CTX_wm_region(C);
Panel *panel;
LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
float xy_a_block[2] = {UNPACK2(dragcol_data->xy_init)};
float xy_b_block[2] = {UNPACK2(xy_dst)};
rctf rect = block->rect;
int oldflag;
const bool is_horizontal = (panel_aligned(area, region) == BUT_HORIZONTAL);
if ((panel = block->panel) == 0 || (panel->type && (panel->type->flag & PNL_NO_HEADER))) {
continue;
}
oldflag = panel->flag;
/* lock one axis */
if (is_horizontal) {
xy_b_block[1] = dragcol_data->xy_init[1];
}
else {
xy_b_block[0] = dragcol_data->xy_init[0];
}
/* use cursor coords in block space */
ui_window_to_block_fl(region, block, &xy_a_block[0], &xy_a_block[1]);
ui_window_to_block_fl(region, block, &xy_b_block[0], &xy_b_block[1]);
/* set up rect to match header size */
rect.ymin = rect.ymax;
rect.ymax = rect.ymin + PNL_HEADER;
if (panel->flag & PNL_CLOSEDX) {
rect.xmax = rect.xmin + PNL_HEADER;
}
/* touch all panels between last mouse coord and the current one */
if (BLI_rctf_isect_segment(&rect, xy_a_block, xy_b_block)) {
/* force panel to close */
if (dragcol_data->was_first_open == true) {
panel->flag |= (is_horizontal ? PNL_CLOSEDX : PNL_CLOSEDY);
}
/* force panel to open */
else {
panel->flag &= ~PNL_CLOSED;
}
/* if panel->flag has changed this means a panel was opened/closed here */
if (panel->flag != oldflag) {
panel_activate_state(C, panel, PANEL_STATE_ANIMATION);
}
}
}
/* Update the instanced panel data expand flags with the changes made here. */
set_panels_list_data_expand_flag(C, region);
}
/**
* Panel drag-collapse (modal handler)
* Clicking and dragging over panels toggles their collapse state based on the panel that was first
* dragged over. If it was open all affected panels incl the initial one are closed and vice versa.
*/
static int ui_panel_drag_collapse_handler(bContext *C, const wmEvent *event, void *userdata)
{
wmWindow *win = CTX_wm_window(C);
uiPanelDragCollapseHandle *dragcol_data = userdata;
short retval = WM_UI_HANDLER_CONTINUE;
switch (event->type) {
case MOUSEMOVE:
ui_panel_drag_collapse(C, dragcol_data, &event->x);
retval = WM_UI_HANDLER_BREAK;
break;
case LEFTMOUSE:
if (event->val == KM_RELEASE) {
/* done! */
WM_event_remove_ui_handler(&win->modalhandlers,
ui_panel_drag_collapse_handler,
ui_panel_drag_collapse_handler_remove,
dragcol_data,
true);
ui_panel_drag_collapse_handler_remove(C, dragcol_data);
}
/* don't let any left-mouse event fall through! */
retval = WM_UI_HANDLER_BREAK;
break;
}
return retval;
}
static void ui_panel_drag_collapse_handler_add(const bContext *C, const bool was_open)
{
wmWindow *win = CTX_wm_window(C);
const wmEvent *event = win->eventstate;
uiPanelDragCollapseHandle *dragcol_data = MEM_mallocN(sizeof(*dragcol_data), __func__);
dragcol_data->was_first_open = was_open;
copy_v2_v2_int(dragcol_data->xy_init, &event->x);
WM_event_add_ui_handler(C,
&win->modalhandlers,
ui_panel_drag_collapse_handler,
ui_panel_drag_collapse_handler_remove,
dragcol_data,
0);
}
/* this function is supposed to call general window drawing too */
/* also it supposes a block has panel, and isn't a menu */
static void ui_handle_panel_header(
const bContext *C, uiBlock *block, int mx, int my, int event, short ctrl, short shift)
{
ScrArea *area = CTX_wm_area(C);
ARegion *region = CTX_wm_region(C);
#ifdef USE_PIN_HIDDEN
const bool show_pin = UI_panel_category_is_visible(region) &&
(block->panel->type->parent == NULL) && (block->panel->flag & PNL_PIN);
#else
const bool show_pin = UI_panel_category_is_visible(region) &&
(block->panel->type->parent == NULL);
#endif
const bool is_subpanel = (block->panel->type && block->panel->type->parent);
const bool show_drag = !is_subpanel;
int align = panel_aligned(area, region), button = 0;
rctf rect_drag, rect_pin;
float rect_leftmost;
/* drag and pin rect's */
rect_drag = block->rect;
rect_drag.xmin = block->rect.xmax - (PNL_ICON * 1.5f);
rect_pin = rect_drag;
if (show_pin) {
BLI_rctf_translate(&rect_pin, -PNL_ICON, 0.0f);
}
rect_leftmost = rect_pin.xmin;
/* mouse coordinates in panel space! */
/* XXX weak code, currently it assumes layout style for location of widgets */
/* check open/collapsed button */
if (event == EVT_RETKEY) {
button = 1;
}
else if (event == EVT_AKEY) {
button = 1;
}
else if (ELEM(event, 0, EVT_RETKEY, LEFTMOUSE) && shift) {
if (block->panel->type->parent == NULL) {
block->panel->flag ^= PNL_PIN;
button = 2;
}
}
else if (block->panel->flag & PNL_CLOSEDX) {
if (my >= block->rect.ymax) {
button = 1;
}
}
else if (block->panel->control & UI_PNL_CLOSE) {
/* whole of header can be used to collapse panel (except top-right corner) */
if (mx <= block->rect.xmax - 8 - PNL_ICON) {
button = 2;
}
// else if (mx <= block->rect.xmin + 10 + 2 * PNL_ICON + 2) {
// button = 1;
//}
}
else if (mx < rect_leftmost) {
button = 1;
}
if (button) {
if (button == 2) { /* close */
ED_region_tag_redraw(region);
}
else {
/* Collapse and expand panels. */
if (ctrl) {
/* Only collapse all for parent panels. */
if (block->panel->type != NULL && block->panel->type->parent == NULL) {
if (block->panel->flag & PNL_CLOSED || BLI_listbase_is_empty(&block->panel->children)) {
panels_collapse_all(C, area, region, block->panel);
}
else {
const int closed_flag = (align == BUT_HORIZONTAL) ? PNL_CLOSEDX : PNL_CLOSEDY;
/* If a panel has subpanels and it's open, toggle the expansion
* of the subpanels (based on the expansion of the first subpanel). */
Panel *first_child = block->panel->children.first;
BLI_assert(first_child != NULL);
panel_set_flag_recursive(
block->panel, closed_flag, (first_child->flag & PNL_CLOSED) == 0);
block->panel->flag |= closed_flag;
}
/* reset the view - we don't want to display a view without content */
UI_view2d_offset(&region->v2d, 0.0f, 1.0f);
}
}
if (block->panel->flag & PNL_CLOSED) {
block->panel->flag &= ~PNL_CLOSED;
/* snap back up so full panel aligns with screen edge */
if (block->panel->snap & PNL_SNAP_BOTTOM) {
block->panel->ofsy = 0;
}
if (event == LEFTMOUSE) {
ui_panel_drag_collapse_handler_add(C, false);
}
}
else if (align == BUT_HORIZONTAL) {
block->panel->flag |= PNL_CLOSEDX;
if (event == LEFTMOUSE) {
ui_panel_drag_collapse_handler_add(C, true);
}
}
else {
/* snap down to bottom screen edge */
block->panel->flag |= PNL_CLOSEDY;
if (block->panel->snap & PNL_SNAP_BOTTOM) {
block->panel->ofsy = -block->panel->sizey;
}
if (event == LEFTMOUSE) {
ui_panel_drag_collapse_handler_add(C, true);
}
}
set_panels_list_data_expand_flag(C, region);
}
if (align) {
panel_activate_state(C, block->panel, PANEL_STATE_ANIMATION);
}
else {
/* FIXME: this doesn't update the panel drawing, assert to avoid debugging why this is.
* We could fix this in the future if it's ever needed. */
BLI_assert(0);
ED_region_tag_redraw(region);
}
}
else if (show_drag && BLI_rctf_isect_x(&rect_drag, mx)) {
/* XXX, for now don't allow dragging in floating windows yet. */
if (region->alignment == RGN_ALIGN_FLOAT) {
return;
}
panel_activate_state(C, block->panel, PANEL_STATE_DRAG);
}
else if (show_pin && BLI_rctf_isect_x(&rect_pin, mx)) {
block->panel->flag ^= PNL_PIN;
ED_region_tag_redraw(region);
}
}
bool UI_panel_category_is_visible(const ARegion *region)
{
/* more than one */
return region->panels_category.first &&
region->panels_category.first != region->panels_category.last;
}
PanelCategoryDyn *UI_panel_category_find(ARegion *region, const char *idname)
{
return BLI_findstring(&region->panels_category, idname, offsetof(PanelCategoryDyn, idname));
}
PanelCategoryStack *UI_panel_category_active_find(ARegion *region, const char *idname)
{
return BLI_findstring(
&region->panels_category_active, idname, offsetof(PanelCategoryStack, idname));
}
static void ui_panel_category_active_set(ARegion *region, const char *idname, bool fallback)
{
ListBase *lb = &region->panels_category_active;
PanelCategoryStack *pc_act = UI_panel_category_active_find(region, idname);
if (pc_act) {
BLI_remlink(lb, pc_act);
}
else {
pc_act = MEM_callocN(sizeof(PanelCategoryStack), __func__);
BLI_strncpy(pc_act->idname, idname, sizeof(pc_act->idname));
}
if (fallback) {
/* For fallbacks, add at the end so explicitly chosen categories have priority. */
BLI_addtail(lb, pc_act);
}
else {
BLI_addhead(lb, pc_act);
}
/* validate all active panels, we could do this on load,
* they are harmless - but we should remove somewhere.
* (addons could define own and gather cruft over time) */
{
PanelCategoryStack *pc_act_next;
/* intentionally skip first */
pc_act_next = pc_act->next;
while ((pc_act = pc_act_next)) {
pc_act_next = pc_act->next;
if (!BLI_findstring(
&region->type->paneltypes, pc_act->idname, offsetof(PanelType, category))) {
BLI_remlink(lb, pc_act);
MEM_freeN(pc_act);
}
}
}
}
void UI_panel_category_active_set(ARegion *region, const char *idname)
{
ui_panel_category_active_set(region, idname, false);
}
void UI_panel_category_active_set_default(ARegion *region, const char *idname)
{
if (!UI_panel_category_active_find(region, idname)) {
ui_panel_category_active_set(region, idname, true);
}
}
const char *UI_panel_category_active_get(ARegion *region, bool set_fallback)
{
LISTBASE_FOREACH (PanelCategoryStack *, pc_act, &region->panels_category_active) {
if (UI_panel_category_find(region, pc_act->idname)) {
return pc_act->idname;
}
}
if (set_fallback) {
PanelCategoryDyn *pc_dyn = region->panels_category.first;
if (pc_dyn) {
ui_panel_category_active_set(region, pc_dyn->idname, true);
return pc_dyn->idname;
}
}
return NULL;
}
PanelCategoryDyn *UI_panel_category_find_mouse_over_ex(ARegion *region, const int x, const int y)
{
LISTBASE_FOREACH (PanelCategoryDyn *, ptd, &region->panels_category) {
if (BLI_rcti_isect_pt(&ptd->rect, x, y)) {
return ptd;
}
}
return NULL;
}
PanelCategoryDyn *UI_panel_category_find_mouse_over(ARegion *region, const wmEvent *event)
{
return UI_panel_category_find_mouse_over_ex(region, event->mval[0], event->mval[1]);
}
void UI_panel_category_add(ARegion *region, const char *name)
{
PanelCategoryDyn *pc_dyn = MEM_callocN(sizeof(*pc_dyn), __func__);
BLI_addtail(&region->panels_category, pc_dyn);
BLI_strncpy(pc_dyn->idname, name, sizeof(pc_dyn->idname));
/* 'pc_dyn->rect' must be set on draw */
}
void UI_panel_category_clear_all(ARegion *region)
{
BLI_freelistN(&region->panels_category);
}
static void imm_buf_append(
float vbuf[][2], uchar cbuf[][3], float x, float y, const uchar col[3], int *index)
{
ARRAY_SET_ITEMS(vbuf[*index], x, y);
ARRAY_SET_ITEMS(cbuf[*index], UNPACK3(col));
(*index)++;
}
/* based on UI_draw_roundbox, check on making a version which allows us to skip some sides */
static void ui_panel_category_draw_tab(bool filled,
float minx,
float miny,
float maxx,
float maxy,
float rad,
const int roundboxtype,
const bool use_highlight,
const bool use_shadow,
const bool use_flip_x,
const uchar highlight_fade[3],
const uchar col[3])
{
float vec[4][2] = {{0.195, 0.02}, {0.55, 0.169}, {0.831, 0.45}, {0.98, 0.805}};
int a;
/* mult */
for (a = 0; a < 4; a++) {
mul_v2_fl(vec[a], rad);
}
uint vert_len = 0;
if (use_highlight) {
vert_len += (roundboxtype & UI_CNR_TOP_RIGHT) ? 6 : 1;
vert_len += (roundboxtype & UI_CNR_TOP_LEFT) ? 6 : 1;
}
if (use_highlight && !use_shadow) {
vert_len++;
}
else {
vert_len += (roundboxtype & UI_CNR_BOTTOM_RIGHT) ? 6 : 1;
vert_len += (roundboxtype & UI_CNR_BOTTOM_LEFT) ? 6 : 1;
}
/* Maximum size. */
float vbuf[24][2];
uchar cbuf[24][3];
int buf_index = 0;
/* start with corner right-top */
if (use_highlight) {
if (roundboxtype & UI_CNR_TOP_RIGHT) {
imm_buf_append(vbuf, cbuf, maxx, maxy - rad, col, &buf_index);
for (a = 0; a < 4; a++) {
imm_buf_append(vbuf, cbuf, maxx - vec[a][1], maxy - rad + vec[a][0], col, &buf_index);
}
imm_buf_append(vbuf, cbuf, maxx - rad, maxy, col, &buf_index);
}
else {
imm_buf_append(vbuf, cbuf, maxx, maxy, col, &buf_index);
}
/* corner left-top */
if (roundboxtype & UI_CNR_TOP_LEFT) {
imm_buf_append(vbuf, cbuf, minx + rad, maxy, col, &buf_index);
for (a = 0; a < 4; a++) {
imm_buf_append(vbuf, cbuf, minx + rad - vec[a][0], maxy - vec[a][1], col, &buf_index);
}
imm_buf_append(vbuf, cbuf, minx, maxy - rad, col, &buf_index);
}
else {
imm_buf_append(vbuf, cbuf, minx, maxy, col, &buf_index);
}
}
if (use_highlight && !use_shadow) {
imm_buf_append(
vbuf, cbuf, minx, miny + rad, highlight_fade ? col : highlight_fade, &buf_index);
}
else {
/* corner left-bottom */
if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
imm_buf_append(vbuf, cbuf, minx, miny + rad, col, &buf_index);
for (a = 0; a < 4; a++) {
imm_buf_append(vbuf, cbuf, minx + vec[a][1], miny + rad - vec[a][0], col, &buf_index);
}
imm_buf_append(vbuf, cbuf, minx + rad, miny, col, &buf_index);
}
else {
imm_buf_append(vbuf, cbuf, minx, miny, col, &buf_index);
}
/* corner right-bottom */
if (roundboxtype & UI_CNR_BOTTOM_RIGHT) {
imm_buf_append(vbuf, cbuf, maxx - rad, miny, col, &buf_index);
for (a = 0; a < 4; a++) {
imm_buf_append(vbuf, cbuf, maxx - rad + vec[a][0], miny + vec[a][1], col, &buf_index);
}
imm_buf_append(vbuf, cbuf, maxx, miny + rad, col, &buf_index);
}
else {
imm_buf_append(vbuf, cbuf, maxx, miny, col, &buf_index);
}
}
if (use_flip_x) {
float midx = (minx + maxx) / 2.0f;
for (int i = 0; i < buf_index; i++) {
vbuf[i][0] = midx - (vbuf[i][0] - midx);
}
}
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uint color = GPU_vertformat_attr_add(
format, "color", GPU_COMP_U8, 3, GPU_FETCH_INT_TO_FLOAT_UNIT);
immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
immBegin(filled ? GPU_PRIM_TRI_FAN : GPU_PRIM_LINE_STRIP, vert_len);
for (int i = 0; i < buf_index; i++) {
immAttr3ubv(color, cbuf[i]);
immVertex2fv(pos, vbuf[i]);
}
immEnd();
immUnbindProgram();
}
/**
* Draw vertical tabs on the left side of the region,
* one tab per category.
*/
void UI_panel_category_draw_all(ARegion *region, const char *category_id_active)
{
/* no tab outlines for */
// #define USE_FLAT_INACTIVE
const bool is_left = RGN_ALIGN_ENUM_FROM_MASK(region->alignment != RGN_ALIGN_RIGHT);
View2D *v2d = &region->v2d;
const uiStyle *style = UI_style_get();
const uiFontStyle *fstyle = &style->widget;
const int fontid = fstyle->uifont_id;
short fstyle_points = fstyle->points;
const float aspect = ((uiBlock *)region->uiblocks.first)->aspect;
const float zoom = 1.0f / aspect;
const int px = max_ii(1, round_fl_to_int(U.pixelsize));
const int px_x_sign = is_left ? px : -px;
const int category_tabs_width = round_fl_to_int(UI_PANEL_CATEGORY_MARGIN_WIDTH * zoom);
const float dpi_fac = UI_DPI_FAC;
/* padding of tabs around text */
const int tab_v_pad_text = round_fl_to_int((2 + ((px * 3) * dpi_fac)) * zoom);
/* padding between tabs */
const int tab_v_pad = round_fl_to_int((4 + (2 * px * dpi_fac)) * zoom);
const float tab_curve_radius = ((px * 3) * dpi_fac) * zoom;
/* We flip the tab drawing, so always use these flags. */
const int roundboxtype = UI_CNR_TOP_LEFT | UI_CNR_BOTTOM_LEFT;
bool is_alpha;
bool do_scaletabs = false;
#ifdef USE_FLAT_INACTIVE
bool is_active_prev = false;
#endif
float scaletabs = 1.0f;
/* same for all tabs */
/* intentionally dont scale by 'px' */
const int rct_xmin = is_left ? v2d->mask.xmin + 3 : (v2d->mask.xmax - category_tabs_width);
const int rct_xmax = is_left ? v2d->mask.xmin + category_tabs_width : (v2d->mask.xmax - 3);
const int text_v_ofs = (rct_xmax - rct_xmin) * 0.3f;
int y_ofs = tab_v_pad;
/* Primary theme colors */
uchar theme_col_back[4];
uchar theme_col_text[3];
uchar theme_col_text_hi[3];
/* Tab colors */
uchar theme_col_tab_bg[4];
uchar theme_col_tab_active[3];
uchar theme_col_tab_inactive[3];
/* Secondary theme colors */
uchar theme_col_tab_outline[3];
uchar theme_col_tab_divider[3]; /* line that divides tabs from the main region */
uchar theme_col_tab_highlight[3];
uchar theme_col_tab_highlight_inactive[3];
UI_GetThemeColor4ubv(TH_BACK, theme_col_back);
UI_GetThemeColor3ubv(TH_TEXT, theme_col_text);
UI_GetThemeColor3ubv(TH_TEXT_HI, theme_col_text_hi);
UI_GetThemeColor4ubv(TH_TAB_BACK, theme_col_tab_bg);
UI_GetThemeColor3ubv(TH_TAB_ACTIVE, theme_col_tab_active);
UI_GetThemeColor3ubv(TH_TAB_INACTIVE, theme_col_tab_inactive);
UI_GetThemeColor3ubv(TH_TAB_OUTLINE, theme_col_tab_outline);
interp_v3_v3v3_uchar(theme_col_tab_divider, theme_col_back, theme_col_tab_outline, 0.3f);
interp_v3_v3v3_uchar(theme_col_tab_highlight, theme_col_back, theme_col_text_hi, 0.2f);
interp_v3_v3v3_uchar(
theme_col_tab_highlight_inactive, theme_col_tab_inactive, theme_col_text_hi, 0.12f);
is_alpha = (region->overlap && (theme_col_back[3] != 255));
if (fstyle->kerning == 1) {
BLF_enable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
}
BLF_enable(fontid, BLF_ROTATION);
BLF_rotation(fontid, M_PI_2);
// UI_fontstyle_set(&style->widget);
ui_fontscale(&fstyle_points, aspect / (U.pixelsize * 1.1f));
BLF_size(fontid, fstyle_points, U.dpi);
/* Check the region type supports categories to avoid an assert
* for showing 3D view panels in the properties space. */
if ((1 << region->regiontype) & RGN_TYPE_HAS_CATEGORY_MASK) {
BLI_assert(UI_panel_category_is_visible(region));
}
/* calculate tab rect's and check if we need to scale down */
LISTBASE_FOREACH (PanelCategoryDyn *, pc_dyn, &region->panels_category) {
rcti *rct = &pc_dyn->rect;
const char *category_id = pc_dyn->idname;
const char *category_id_draw = IFACE_(category_id);
const int category_width = BLF_width(fontid, category_id_draw, BLF_DRAW_STR_DUMMY_MAX);
rct->xmin = rct_xmin;
rct->xmax = rct_xmax;
rct->ymin = v2d->mask.ymax - (y_ofs + category_width + (tab_v_pad_text * 2));
rct->ymax = v2d->mask.ymax - (y_ofs);
y_ofs += category_width + tab_v_pad + (tab_v_pad_text * 2);
}
if (y_ofs > BLI_rcti_size_y(&v2d->mask)) {
scaletabs = (float)BLI_rcti_size_y(&v2d->mask) / (float)y_ofs;
LISTBASE_FOREACH (PanelCategoryDyn *, pc_dyn, &region->panels_category) {
rcti *rct = &pc_dyn->rect;
rct->ymin = ((rct->ymin - v2d->mask.ymax) * scaletabs) + v2d->mask.ymax;
rct->ymax = ((rct->ymax - v2d->mask.ymax) * scaletabs) + v2d->mask.ymax;
}
do_scaletabs = true;
}
/* begin drawing */
GPU_line_smooth(true);
uint pos = GPU_vertformat_attr_add(
immVertexFormat(), "pos", GPU_COMP_I32, 2, GPU_FETCH_INT_TO_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
/* draw the background */
if (is_alpha) {
GPU_blend(true);
immUniformColor4ubv(theme_col_tab_bg);
}
else {
immUniformColor3ubv(theme_col_tab_bg);
}
if (is_left) {
immRecti(
pos, v2d->mask.xmin, v2d->mask.ymin, v2d->mask.xmin + category_tabs_width, v2d->mask.ymax);
}
else {
immRecti(
pos, v2d->mask.xmax - category_tabs_width, v2d->mask.ymin, v2d->mask.xmax, v2d->mask.ymax);
}
if (is_alpha) {
GPU_blend(false);
}
immUnbindProgram();
const int divider_xmin = is_left ? (v2d->mask.xmin + (category_tabs_width - px)) :
(v2d->mask.xmax - category_tabs_width) + px;
const int divider_xmax = is_left ? (v2d->mask.xmin + category_tabs_width) :
(v2d->mask.xmax - (category_tabs_width + px)) + px;
LISTBASE_FOREACH (PanelCategoryDyn *, pc_dyn, &region->panels_category) {
const rcti *rct = &pc_dyn->rect;
const char *category_id = pc_dyn->idname;
const char *category_id_draw = IFACE_(category_id);
int category_width = BLI_rcti_size_y(rct) - (tab_v_pad_text * 2);
size_t category_draw_len = BLF_DRAW_STR_DUMMY_MAX;
// int category_width = BLF_width(fontid, category_id_draw, BLF_DRAW_STR_DUMMY_MAX);
const bool is_active = STREQ(category_id, category_id_active);
GPU_blend(true);
#ifdef USE_FLAT_INACTIVE
if (is_active)
#endif
{
const bool use_flip_x = !is_left;
ui_panel_category_draw_tab(true,
rct->xmin,
rct->ymin,
rct->xmax,
rct->ymax,
tab_curve_radius - px,
roundboxtype,
true,
true,
use_flip_x,
NULL,
is_active ? theme_col_tab_active : theme_col_tab_inactive);
/* tab outline */
ui_panel_category_draw_tab(false,
rct->xmin - px_x_sign,
rct->ymin - px,
rct->xmax - px_x_sign,
rct->ymax + px,
tab_curve_radius,
roundboxtype,
true,
true,
use_flip_x,
NULL,
theme_col_tab_outline);
/* tab highlight (3d look) */
ui_panel_category_draw_tab(false,
rct->xmin,
rct->ymin,
rct->xmax,
rct->ymax,
tab_curve_radius,
roundboxtype,
true,
false,
use_flip_x,
is_active ? theme_col_back : theme_col_tab_inactive,
is_active ? theme_col_tab_highlight :
theme_col_tab_highlight_inactive);
}
/* tab blackline */
if (!is_active) {
pos = GPU_vertformat_attr_add(
immVertexFormat(), "pos", GPU_COMP_I32, 2, GPU_FETCH_INT_TO_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor3ubv(theme_col_tab_divider);
immRecti(pos, divider_xmin, rct->ymin - tab_v_pad, divider_xmax, rct->ymax + tab_v_pad);
immUnbindProgram();
}
if (do_scaletabs) {
category_draw_len = BLF_width_to_strlen(
fontid, category_id_draw, category_draw_len, category_width, NULL);
}
BLF_position(fontid, rct->xmax - text_v_ofs, rct->ymin + tab_v_pad_text, 0.0f);
/* tab titles */
/* draw white shadow to give text more depth */
BLF_color3ubv(fontid, theme_col_text);
/* main tab title */
BLF_draw(fontid, category_id_draw, category_draw_len);
GPU_blend(false);
/* tab blackline remaining (last tab) */
pos = GPU_vertformat_attr_add(
immVertexFormat(), "pos", GPU_COMP_I32, 2, GPU_FETCH_INT_TO_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
if (pc_dyn->prev == NULL) {
immUniformColor3ubv(theme_col_tab_divider);
immRecti(pos, divider_xmin, rct->ymax + px, divider_xmax, v2d->mask.ymax);
}
if (pc_dyn->next == NULL) {
immUniformColor3ubv(theme_col_tab_divider);
immRecti(pos, divider_xmin, 0, divider_xmax, rct->ymin);
}
#ifdef USE_FLAT_INACTIVE
/* draw line between inactive tabs */
if (is_active == false && is_active_prev == false && pc_dyn->prev) {
immUniformColor3ubv(theme_col_tab_divider);
immRecti(pos,
v2d->mask.xmin + (category_tabs_width / 5),
rct->ymax + px,
(v2d->mask.xmin + category_tabs_width) - (category_tabs_width / 5),
rct->ymax + (px * 3));
}
is_active_prev = is_active;
#endif
immUnbindProgram();
/* not essential, but allows events to be handled right up until the region edge [#38171] */
if (is_left) {
pc_dyn->rect.xmin = v2d->mask.xmin;
}
else {
pc_dyn->rect.xmax = v2d->mask.xmax;
}
}
GPU_line_smooth(false);
BLF_disable(fontid, BLF_ROTATION);
if (fstyle->kerning == 1) {
BLF_disable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
}
#undef USE_FLAT_INACTIVE
}
static int ui_handle_panel_category_cycling(const wmEvent *event,
ARegion *region,
const uiBut *active_but)
{
const bool is_mousewheel = ELEM(event->type, WHEELUPMOUSE, WHEELDOWNMOUSE);
const bool inside_tabregion =
((RGN_ALIGN_ENUM_FROM_MASK(region->alignment) != RGN_ALIGN_RIGHT) ?
(event->mval[0] < ((PanelCategoryDyn *)region->panels_category.first)->rect.xmax) :
(event->mval[0] > ((PanelCategoryDyn *)region->panels_category.first)->rect.xmin));
/* if mouse is inside non-tab region, ctrl key is required */
if (is_mousewheel && !event->ctrl && !inside_tabregion) {
return WM_UI_HANDLER_CONTINUE;
}
if (active_but && ui_but_supports_cycling(active_but)) {
/* skip - exception to make cycling buttons
* using ctrl+mousewheel work in tabbed regions */
}
else {
const char *category = UI_panel_category_active_get(region, false);
if (LIKELY(category)) {
PanelCategoryDyn *pc_dyn = UI_panel_category_find(region, category);
if (LIKELY(pc_dyn)) {
if (is_mousewheel) {
/* we can probably get rid of this and only allow ctrl+tabbing */
pc_dyn = (event->type == WHEELDOWNMOUSE) ? pc_dyn->next : pc_dyn->prev;
}
else {
const bool backwards = event->shift;
pc_dyn = backwards ? pc_dyn->prev : pc_dyn->next;
if (!pc_dyn) {
/* proper cyclic behavior,
* back to first/last category (only used for ctrl+tab) */
pc_dyn = backwards ? region->panels_category.last : region->panels_category.first;
}
}
if (pc_dyn) {
/* intentionally don't reset scroll in this case,
* this allows for quick browsing between tabs */
UI_panel_category_active_set(region, pc_dyn->idname);
ED_region_tag_redraw(region);
}
}
}
return WM_UI_HANDLER_BREAK;
}
return WM_UI_HANDLER_CONTINUE;
}
/* XXX should become modal keymap */
/* AKey is opening/closing panels, independent of button state now */
int ui_handler_panel_region(bContext *C,
const wmEvent *event,
ARegion *region,
const uiBut *active_but)
{
Panel *panel;
int retval, mx, my;
bool has_category_tabs = UI_panel_category_is_visible(region);
retval = WM_UI_HANDLER_CONTINUE;
/* Scrollbars can overlap panels now, they have handling priority. */
if (UI_view2d_mouse_in_scrollers(region, &region->v2d, event->x, event->y)) {
return retval;
}
/* handle category tabs */
if (has_category_tabs) {
if (event->val == KM_PRESS) {
if (event->type == LEFTMOUSE) {
PanelCategoryDyn *pc_dyn = UI_panel_category_find_mouse_over(region, event);
if (pc_dyn) {
UI_panel_category_active_set(region, pc_dyn->idname);
ED_region_tag_redraw(region);
/* reset scroll to the top [#38348] */
UI_view2d_offset(&region->v2d, -1.0f, 1.0f);
retval = WM_UI_HANDLER_BREAK;
}
}
else if ((event->type == EVT_TABKEY && event->ctrl) ||
ELEM(event->type, WHEELUPMOUSE, WHEELDOWNMOUSE)) {
/* cycle tabs */
retval = ui_handle_panel_category_cycling(event, region, active_but);
}
}
}
if (retval == WM_UI_HANDLER_BREAK) {
return retval;
}
LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
uiPanelMouseState mouse_state;
mx = event->x;
my = event->y;
ui_window_to_block(region, block, &mx, &my);
/* checks for mouse position inside */
panel = block->panel;
if (!panel) {
continue;
}
/* XXX - accessed freed panels when scripts reload, need to fix. */
if (panel->type && panel->type->flag & PNL_NO_HEADER) {
continue;
}
mouse_state = ui_panel_mouse_state_get(block, panel, mx, my);
/* XXX hardcoded key warning */
if (ELEM(mouse_state, PANEL_MOUSE_INSIDE_CONTENT, PANEL_MOUSE_INSIDE_HEADER) &&
event->val == KM_PRESS) {
if (event->type == EVT_AKEY &&
((event->ctrl + event->oskey + event->shift + event->alt) == 0)) {
if (panel->flag & PNL_CLOSEDY) {
if ((block->rect.ymax <= my) && (block->rect.ymax + PNL_HEADER >= my)) {
ui_handle_panel_header(C, block, mx, my, event->type, event->ctrl, event->shift);
}
}
else {
ui_handle_panel_header(C, block, mx, my, event->type, event->ctrl, event->shift);
}
retval = WM_UI_HANDLER_BREAK;
continue;
}
}
/* on active button, do not handle panels */
if (ui_region_find_active_but(region) != NULL) {
continue;
}
if (ELEM(mouse_state, PANEL_MOUSE_INSIDE_CONTENT, PANEL_MOUSE_INSIDE_HEADER)) {
if (event->val == KM_PRESS) {
/* open close on header */
if (ELEM(event->type, EVT_RETKEY, EVT_PADENTER)) {
if (mouse_state == PANEL_MOUSE_INSIDE_HEADER) {
ui_handle_panel_header(C, block, mx, my, EVT_RETKEY, event->ctrl, event->shift);
retval = WM_UI_HANDLER_BREAK;
break;
}
}
else if (event->type == LEFTMOUSE) {
/* all inside clicks should return in break - overlapping/float panels */
retval = WM_UI_HANDLER_BREAK;
if (mouse_state == PANEL_MOUSE_INSIDE_HEADER) {
ui_handle_panel_header(C, block, mx, my, event->type, event->ctrl, event->shift);
retval = WM_UI_HANDLER_BREAK;
break;
}
else if ((mouse_state == PANEL_MOUSE_INSIDE_SCALE) && !(panel->flag & PNL_CLOSED)) {
panel_activate_state(C, panel, PANEL_STATE_DRAG_SCALE);
retval = WM_UI_HANDLER_BREAK;
break;
}
}
else if (event->type == RIGHTMOUSE) {
if (mouse_state == PANEL_MOUSE_INSIDE_HEADER) {
ui_popup_context_menu_for_panel(C, region, block->panel);
retval = WM_UI_HANDLER_BREAK;
break;
}
}
else if (event->type == EVT_ESCKEY) {
/*XXX 2.50*/
#if 0
if (block->handler) {
rem_blockhandler(area, block->handler);
ED_region_tag_redraw(region);
retval = WM_UI_HANDLER_BREAK;
}
#endif
}
else if (event->type == EVT_PADPLUSKEY || event->type == EVT_PADMINUS) {
#if 0 /* XXX make float panel exception? */
int zoom = 0;
/* if panel is closed, only zoom if mouse is over the header */
if (panel->flag & (PNL_CLOSEDX | PNL_CLOSEDY)) {
if (inside_header) {
zoom = 1;
}
}
else {
zoom = 1;
}
if (zoom) {
ScrArea *area = CTX_wm_area(C);
SpaceLink *sl = area->spacedata.first;
if (area->spacetype != SPACE_PROPERTIES) {
if (!(panel->control & UI_PNL_SCALE)) {
if (event->type == PADPLUSKEY) {
sl->blockscale += 0.1;
}
else {
sl->blockscale -= 0.1;
}
CLAMP(sl->blockscale, 0.6, 1.0);
ED_region_tag_redraw(region);
retval = WM_UI_HANDLER_BREAK;
}
}
}
#endif
}
}
}
}
return retval;
}
/**************** window level modal panel interaction **************/
/* note, this is modal handler and should not swallow events for animation */
static int ui_handler_panel(bContext *C, const wmEvent *event, void *userdata)
{
Panel *panel = userdata;
uiHandlePanelData *data = panel->activedata;
/* verify if we can stop */
if (event->type == LEFTMOUSE && event->val == KM_RELEASE) {
ScrArea *area = CTX_wm_area(C);
ARegion *region = CTX_wm_region(C);
int align = panel_aligned(area, region);
if (align) {
panel_activate_state(C, panel, PANEL_STATE_ANIMATION);
}
else {
panel_activate_state(C, panel, PANEL_STATE_EXIT);
}
}
else if (event->type == MOUSEMOVE) {
if (data->state == PANEL_STATE_DRAG) {
ui_do_drag(C, event, panel);
}
}
else if (event->type == TIMER && event->customdata == data->animtimer) {
if (data->state == PANEL_STATE_ANIMATION) {
ui_do_animate(C, panel);
}
else if (data->state == PANEL_STATE_DRAG) {
ui_do_drag(C, event, panel);
}
}
data = panel->activedata;
if (data && data->state == PANEL_STATE_ANIMATION) {
return WM_UI_HANDLER_CONTINUE;
}
else {
return WM_UI_HANDLER_BREAK;
}
}
static void ui_handler_remove_panel(bContext *C, void *userdata)
{
Panel *panel = userdata;
panel_activate_state(C, panel, PANEL_STATE_EXIT);
}
static void panel_activate_state(const bContext *C, Panel *panel, uiHandlePanelState state)
{
uiHandlePanelData *data = panel->activedata;
wmWindow *win = CTX_wm_window(C);
ARegion *region = CTX_wm_region(C);
if (data && data->state == state) {
return;
}
bool was_drag_drop = (data && data->state == PANEL_STATE_DRAG);
/* Set selection state for the panel and its subpanels, which need to know they are selected
* too so they can be drawn above their parent when it's dragged. */
if (state == PANEL_STATE_EXIT || state == PANEL_STATE_ANIMATION) {
if (data && data->state != PANEL_STATE_ANIMATION) {
/* XXX:
* - the panel tabbing function call below (test_add_new_tabs()) has been commented out
* "It is too easy to do by accident when reordering panels,
* is very hard to control and use, and has no real benefit." - BillRey
* Aligorith, 2009Sep
*/
// test_add_new_tabs(region); // also copies locations of tabs in dragged panel
check_panel_overlap(region, NULL); /* clears */
}
panel_set_flag_recursive(panel, PNL_SELECT, false);
}
else {
panel_set_flag_recursive(panel, PNL_SELECT, true);
}
if (data && data->animtimer) {
WM_event_remove_timer(CTX_wm_manager(C), win, data->animtimer);
data->animtimer = NULL;
}
if (state == PANEL_STATE_EXIT) {
MEM_freeN(data);
panel->activedata = NULL;
WM_event_remove_ui_handler(
&win->modalhandlers, ui_handler_panel, ui_handler_remove_panel, panel, false);
}
else {
if (!data) {
data = MEM_callocN(sizeof(uiHandlePanelData), "uiHandlePanelData");
panel->activedata = data;
WM_event_add_ui_handler(
C, &win->modalhandlers, ui_handler_panel, ui_handler_remove_panel, panel, 0);
}
if (ELEM(state, PANEL_STATE_ANIMATION, PANEL_STATE_DRAG)) {
data->animtimer = WM_event_add_timer(CTX_wm_manager(C), win, TIMER, ANIMATION_INTERVAL);
}
/* Initiate edge panning during drags so we can move beyond the initial region view. */
if (state == PANEL_STATE_DRAG) {
wmOperatorType *ot = WM_operatortype_find("VIEW2D_OT_edge_pan", true);
ui_handle_afterfunc_add_operator(ot, WM_OP_INVOKE_DEFAULT, true);
}
data->state = state;
data->startx = win->eventstate->x;
data->starty = win->eventstate->y;
data->startofsx = panel->ofsx;
data->startofsy = panel->ofsy;
data->startsizex = panel->sizex;
data->startsizey = panel->sizey;
data->start_cur_xmin = region->v2d.cur.xmin;
data->start_cur_ymin = region->v2d.cur.ymin;
data->starttime = PIL_check_seconds_timer();
/* Remember drag drop state even when animating to the aligned position after dragging. */
data->is_drag_drop = was_drag_drop;
if (state == PANEL_STATE_DRAG) {
data->is_drag_drop = true;
}
}
ED_region_tag_redraw(region);
}
PanelType *UI_paneltype_find(int space_id, int region_id, const char *idname)
{
SpaceType *st = BKE_spacetype_from_id(space_id);
if (st) {
ARegionType *art = BKE_regiontype_from_id(st, region_id);
if (art) {
return BLI_findstring(&art->paneltypes, idname, offsetof(PanelType, idname));
}
}
return NULL;
}
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