C++ UI_ThemeColor函数代码示例

/* draw keyframe lines for timeline */
static void time_draw_keyframes(const bContext *C, ARegion *ar)
{
	Scene *scene = CTX_data_scene(C);
	Object *ob = CTX_data_active_object(C);
	View2D *v2d = &ar->v2d;
	bool onlysel = ((scene->flag & SCE_KEYS_NO_SELONLY) == 0);
	
	/* set this for all keyframe lines once and for all */
	glLineWidth(1.0);
	
	/* draw grease pencil keyframes (if available) */	
	UI_ThemeColor(TH_TIME_GP_KEYFRAME);
	if (scene->gpd) {
		time_draw_idblock_keyframes(v2d, (ID *)scene->gpd, onlysel);
	}
	if (ob && ob->gpd) {
		time_draw_idblock_keyframes(v2d, (ID *)ob->gpd, onlysel);
	}
	
	/* draw scene keyframes first 
	 *	- don't try to do this when only drawing active/selected data keyframes,
	 *	  since this can become quite slow
	 */
	if (onlysel == 0) {
		/* set draw color */
		UI_ThemeColorShade(TH_TIME_KEYFRAME, -50);
		time_draw_idblock_keyframes(v2d, (ID *)scene, onlysel);
	}
	
	/* draw keyframes from selected objects 
	 *  - only do the active object if in posemode (i.e. showing only keyframes for the bones)
	 *    OR the onlysel flag was set, which means that only active object's keyframes should
	 *    be considered
	 */
	UI_ThemeColor(TH_TIME_KEYFRAME);
	
	if (ob && ((ob->mode == OB_MODE_POSE) || onlysel)) {
		/* draw keyframes for active object only */
		time_draw_idblock_keyframes(v2d, (ID *)ob, onlysel);
	}
	else {
		bool active_done = false;
		
		/* draw keyframes from all selected objects */
		CTX_DATA_BEGIN (C, Object *, obsel, selected_objects)
		{
			/* last arg is 0, since onlysel doesn't apply here... */
			time_draw_idblock_keyframes(v2d, (ID *)obsel, 0);
			
			/* if this object is the active one, set flag so that we don't draw again */
			if (obsel == ob)
				active_done = true;
		}
		CTX_DATA_END;
		
		/* if active object hasn't been done yet, draw it... */
		if (ob && (active_done == 0))
			time_draw_idblock_keyframes(v2d, (ID *)ob, 0);
	}

/* Sets the current drawing color based on the format character specified */
static void format_draw_color(char formatchar)
{
	switch (formatchar) {
		case FMT_TYPE_WHITESPACE:
			break;
		case FMT_TYPE_SYMBOL:
			UI_ThemeColor(TH_SYNTAX_S);
			break;
		case FMT_TYPE_COMMENT:
			UI_ThemeColor(TH_SYNTAX_C);
			break;
		case FMT_TYPE_NUMERAL:
			UI_ThemeColor(TH_SYNTAX_N);
			break;
		case FMT_TYPE_STRING:
			UI_ThemeColor(TH_SYNTAX_L);
			break;
		case FMT_TYPE_DIRECTIVE:
			UI_ThemeColor(TH_SYNTAX_D);
			break;
		case FMT_TYPE_SPECIAL:
			UI_ThemeColor(TH_SYNTAX_V);
			break;
		case FMT_TYPE_RESERVED:
			UI_ThemeColor(TH_SYNTAX_R);
			break;
		case FMT_TYPE_KEYWORD:
			UI_ThemeColor(TH_SYNTAX_B);
			break;
		case FMT_TYPE_DEFAULT:
		default:
			UI_ThemeColor(TH_TEXT);
			break;
	}
}

static void draw_render_info(Scene *scene, Image *ima, ARegion *ar)
{
	RenderResult *rr;
	rcti rect;
	float colf[3];
	
	rr= BKE_image_acquire_renderresult(scene, ima);

	if(rr && rr->text) {
		rect= ar->winrct;
		rect.xmin= 0;
		rect.ymin= ar->winrct.ymax - ar->winrct.ymin - HEADER_HEIGHT;
		rect.xmax= ar->winrct.xmax - ar->winrct.xmin;
		rect.ymax= ar->winrct.ymax - ar->winrct.ymin;
		
		/* clear header rect */
		UI_GetThemeColor3fv(TH_BACK, colf);
		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
		glColor4f(colf[0]+0.1f, colf[1]+0.1f, colf[2]+0.1f, 0.5f);
		glRecti(rect.xmin, rect.ymin, rect.xmax, rect.ymax+1);
		glDisable(GL_BLEND);
		
		UI_ThemeColor(TH_TEXT_HI);

		UI_DrawString(12, rect.ymin + 5, rr->text);
	}

	BKE_image_release_renderresult(scene, ima);
}

/* General call for drawing current frame indicator in animation editor */
void ANIM_draw_cfra(const bContext *C, View2D *v2d, short flag)
{
	Scene *scene = CTX_data_scene(C);
	float vec[2];
	
	/* Draw a light green line to indicate current frame */
	vec[0] = (float)(scene->r.cfra * scene->r.framelen);
	
	UI_ThemeColor(TH_CFRAME);
	if (flag & DRAWCFRA_WIDE)
		glLineWidth(3.0);
	else
		glLineWidth(2.0);
	
	glBegin(GL_LINE_STRIP);
	vec[1] = v2d->cur.ymin - 500.0f;    /* XXX arbitrary... want it go to bottom */
	glVertex2fv(vec);
		
	vec[1] = v2d->cur.ymax;
	glVertex2fv(vec);
	glEnd();
	
	glLineWidth(1.0);
	
	/* Draw current frame number in a little box */
	if (flag & DRAWCFRA_SHOW_NUMBOX) {
		UI_view2d_view_orthoSpecial(CTX_wm_region(C), v2d, 1);
		draw_cfra_number(scene, v2d, vec[0], (flag & DRAWCFRA_UNIT_SECONDS) != 0);
	}
}

void clip_draw_cfra(SpaceClip *sc, ARegion *ar, Scene *scene)
{
	View2D *v2d = &ar->v2d;
	float xscale, yscale;
	float vec[2];

	/* Draw a light green line to indicate current frame */
	vec[0] = (float)(sc->user.framenr * scene->r.framelen);

	UI_ThemeColor(TH_CFRAME);
	glLineWidth(2.0);

	glBegin(GL_LINE_STRIP);
	vec[1] = v2d->cur.ymin;
	glVertex2fv(vec);

	vec[1] = v2d->cur.ymax;
	glVertex2fv(vec);
	glEnd();

	glLineWidth(1.0);

	UI_view2d_view_orthoSpecial(ar, v2d, 1);

	/* because the frame number text is subject to the same scaling as the contents of the view */
	UI_view2d_scale_get(v2d, &xscale, &yscale);
	glScalef(1.0f / xscale, 1.0f, 1.0f);

	ED_region_cache_draw_curfra_label(sc->user.framenr, (float)sc->user.framenr * xscale, 18);

	/* restore view transform */
	glScalef(xscale, 1.0, 1.0);
}

static void draw_image_grid(ARegion *ar, float zoomx, float zoomy)
{
	float gridsize, gridstep= 1.0f/32.0f;
	float fac, blendfac;
	int x1, y1, x2, y2;
	
	/* the image is located inside (0,0),(1, 1) as set by view2d */
	UI_ThemeColorShade(TH_BACK, 20);

	UI_view2d_to_region_no_clip(&ar->v2d, 0.0f, 0.0f, &x1, &y1);
	UI_view2d_to_region_no_clip(&ar->v2d, 1.0f, 1.0f, &x2, &y2);
	glRectf(x1, y1, x2, y2);

	/* gridsize adapted to zoom level */
	gridsize= 0.5f*(zoomx+zoomy);
	if(gridsize<=0.0f) return;
	
	if(gridsize<1.0f) {
		while(gridsize<1.0f) {
			gridsize*= 4.0f;
			gridstep*= 4.0f;
		}
	}
	else {
		while(gridsize>=4.0f) {
			gridsize/= 4.0f;
			gridstep/= 4.0f;
		}
	}
	
	/* the fine resolution level */
	blendfac= 0.25f*gridsize - floorf(0.25f*gridsize);
	CLAMP(blendfac, 0.0f, 1.0f);
	UI_ThemeColorShade(TH_BACK, (int)(20.0f*(1.0f-blendfac)));
	
	fac= 0.0f;
	glBegin(GL_LINES);
	while(fac<1.0f) {
		glVertex2f(x1, y1*(1.0f-fac) + y2*fac);
		glVertex2f(x2, y1*(1.0f-fac) + y2*fac);
		glVertex2f(x1*(1.0f-fac) + x2*fac, y1);
		glVertex2f(x1*(1.0f-fac) + x2*fac, y2);
		fac+= gridstep;
	}
	
	/* the large resolution level */
	UI_ThemeColor(TH_BACK);
	
	fac= 0.0f;
	while(fac<1.0f) {
		glVertex2f(x1, y1*(1.0f-fac) + y2*fac);
		glVertex2f(x2, y1*(1.0f-fac) + y2*fac);
		glVertex2f(x1*(1.0f-fac) + x2*fac, y1);
		glVertex2f(x1*(1.0f-fac) + x2*fac, y2);
		fac+= 4.0f*gridstep;
	}
	glEnd();
}

static void drawFlyPixel(const struct bContext *UNUSED(C), ARegion *UNUSED(ar), void *arg)
{
	FlyInfo *fly = arg;
	rctf viewborder;
	int xoff, yoff;
	float x1, x2, y1, y2;

	if (fly->scene->camera) {
		ED_view3d_calc_camera_border(fly->scene, fly->ar, fly->v3d, fly->rv3d, &viewborder, false);
		xoff = viewborder.xmin;
		yoff = viewborder.ymin;
	}
	else {
		xoff = 0;
		yoff = 0;
	}

	/* draws 4 edge brackets that frame the safe area where the
	 * mouse can move during fly mode without spinning the view */

	x1 = xoff + 0.45f * fly->width;
	y1 = yoff + 0.45f * fly->height;
	x2 = xoff + 0.55f * fly->width;
	y2 = yoff + 0.55f * fly->height;

	UI_ThemeColor(TH_VIEW_OVERLAY);
	glBegin(GL_LINES);
	/* bottom left */
	glVertex2f(x1, y1);
	glVertex2f(x1, y1 + 5);

	glVertex2f(x1, y1);
	glVertex2f(x1 + 5, y1);

	/* top right */
	glVertex2f(x2, y2);
	glVertex2f(x2, y2 - 5);

	glVertex2f(x2, y2);
	glVertex2f(x2 - 5, y2);

	/* top left */
	glVertex2f(x1, y2);
	glVertex2f(x1, y2 - 5);

	glVertex2f(x1, y2);
	glVertex2f(x1 + 5, y2);

	/* bottom right */
	glVertex2f(x2, y1);
	glVertex2f(x2, y1 + 5);

	glVertex2f(x2, y1);
	glVertex2f(x2 - 5, y1);
	glEnd();
}

/* called from drawview.c, as an extra per-window draw option */
void drawPropCircle(const struct bContext *C, TransInfo *t)
{
	if (t->flag & T_PROP_EDIT) {
		RegionView3D *rv3d = CTX_wm_region_view3d(C);
		float tmat[4][4], imat[4][4];
		float center[3];
		int depth_test_enabled;

		UI_ThemeColor(TH_GRID);

		if (t->spacetype == SPACE_VIEW3D && rv3d != NULL) {
			copy_m4_m4(tmat, rv3d->viewmat);
			invert_m4_m4(imat, tmat);
		}
		else {
			unit_m4(tmat);
			unit_m4(imat);
		}

		glPushMatrix();

		copy_v3_v3(center, t->center);

		if ((t->spacetype == SPACE_VIEW3D) && t->obedit) {
			mul_m4_v3(t->obedit->obmat, center); /* because t->center is in local space */
		}
		else if (t->spacetype == SPACE_IMAGE) {
			float aspx, aspy;

			if (t->options & CTX_MASK) {
				/* untested - mask aspect is TODO */
				ED_space_image_get_aspect(t->sa->spacedata.first, &aspx, &aspy);
			}
			else {
				ED_space_image_get_uv_aspect(t->sa->spacedata.first, &aspx, &aspy);
			}
			glScalef(1.0f / aspx, 1.0f / aspy, 1.0);
		}

		depth_test_enabled = glIsEnabled(GL_DEPTH_TEST);
		if (depth_test_enabled)
			glDisable(GL_DEPTH_TEST);

		set_inverted_drawing(1);
		drawcircball(GL_LINE_LOOP, center, t->prop_size, imat);
		set_inverted_drawing(0);

		if (depth_test_enabled)
			glEnable(GL_DEPTH_TEST);

		glPopMatrix();
	}
}

/* called from drawview.c, as an extra per-window draw option */
void drawPropCircle(const struct bContext *C, TransInfo *t)
{
	if (t->flag & T_PROP_EDIT) {
		RegionView3D *rv3d = CTX_wm_region_view3d(C);
		float tmat[4][4], imat[4][4];
		int depth_test_enabled;

		UI_ThemeColor(TH_GRID);

		if (t->spacetype == SPACE_VIEW3D && rv3d != NULL) {
			copy_m4_m4(tmat, rv3d->viewmat);
			invert_m4_m4(imat, tmat);
		}
		else {
			unit_m4(tmat);
			unit_m4(imat);
		}

		glPushMatrix();

		if (t->spacetype == SPACE_VIEW3D) {
			/* pass */
		}
		else if (t->spacetype == SPACE_IMAGE) {
			glScalef(1.0f / t->aspect[0], 1.0f / t->aspect[1], 1.0f);
		}
		else if (ELEM(t->spacetype, SPACE_IPO, SPACE_ACTION)) {
			/* only scale y */
			rcti *mask = &t->ar->v2d.mask;
			rctf *datamask = &t->ar->v2d.cur;
			float xsize = BLI_rctf_size_x(datamask);
			float ysize = BLI_rctf_size_y(datamask);
			float xmask = BLI_rcti_size_x(mask);
			float ymask = BLI_rcti_size_y(mask);
			glScalef(1.0f, (ysize / xsize) * (xmask / ymask), 1.0f);
		}

		depth_test_enabled = glIsEnabled(GL_DEPTH_TEST);
		if (depth_test_enabled)
			glDisable(GL_DEPTH_TEST);

		set_inverted_drawing(1);
		drawcircball(GL_LINE_LOOP, t->center_global, t->prop_size, imat);
		set_inverted_drawing(0);

		if (depth_test_enabled)
			glEnable(GL_DEPTH_TEST);

		glPopMatrix();
	}
}

void draw_image_cache(const bContext *C, ARegion *ar)
{
	SpaceImage *sima = CTX_wm_space_image(C);
	Scene *scene = CTX_data_scene(C);
	Image *image = ED_space_image(sima);
	float x, cfra = CFRA, sfra = SFRA, efra = EFRA, framelen = ar->winx / (efra - sfra + 1);
	Mask *mask = NULL;

	if (!ED_space_image_show_cache(sima)) {
		return;
	}

	if (sima->mode == SI_MODE_MASK) {
		mask = ED_space_image_get_mask(sima);
	}

	glEnable(GL_BLEND);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

	/* Draw cache background. */
	ED_region_cache_draw_background(ar);

	/* Draw cached segments. */
	if (image != NULL && image->cache != NULL && ELEM(image->source, IMA_SRC_SEQUENCE, IMA_SRC_MOVIE)) {
		int num_segments = 0;
		int *points = NULL;

		IMB_moviecache_get_cache_segments(image->cache, IMB_PROXY_NONE, 0, &num_segments, &points);
		ED_region_cache_draw_cached_segments(ar, num_segments, points, sfra + sima->iuser.offset, efra + sima->iuser.offset);
	}

	glDisable(GL_BLEND);

	/* Draw current frame. */
	x = (cfra - sfra) / (efra - sfra + 1) * ar->winx;

	UI_ThemeColor(TH_CFRAME);
	glRecti(x, 0, x + ceilf(framelen), 8 * UI_DPI_FAC);
	ED_region_cache_draw_curfra_label(cfra, x, 8.0f * UI_DPI_FAC);

	if (mask != NULL) {
		ED_mask_draw_frames(mask, ar, cfra, sfra, efra);
	}
}

/* draw a short status message in the top-right corner */
static void gp_draw_status_text(bGPdata *gpd, ARegion *ar)
{
	rcti rect;
	
	/* Cannot draw any status text when drawing OpenGL Renders */
	if (G.f & G_RENDER_OGL)
		return;
	
	/* Get bounds of region - Necessary to avoid problems with region overlap */
	ED_region_visible_rect(ar, &rect);
	
	/* for now, this should only be used to indicate when we are in stroke editmode */
	if (gpd->flag & GP_DATA_STROKE_EDITMODE) {
		const char *printable = IFACE_("GPencil Stroke Editing");
		float       printable_size[2];
		int xco, yco;
		
		BLF_width_and_height_default(printable, BLF_DRAW_STR_DUMMY_MAX, &printable_size[0], &printable_size[1]);
		
		xco = (rect.xmax - U.widget_unit) - (int)printable_size[0];
		yco = (rect.ymax - U.widget_unit);
		
		/* text label */
		UI_ThemeColor(TH_TEXT_HI);
#ifdef WITH_INTERNATIONAL
		BLF_draw_default(xco, yco, 0.0f, printable, BLF_DRAW_STR_DUMMY_MAX);
#else
		BLF_draw_default_ascii(xco, yco, 0.0f, printable, BLF_DRAW_STR_DUMMY_MAX);
#endif
		
		/* grease pencil icon... */
		// XXX: is this too intrusive?
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		glEnable(GL_BLEND);
		
		xco -= U.widget_unit;
		yco -= (int)printable_size[1] / 2;

		UI_icon_draw(xco, yco, ICON_GREASEPENCIL);
		
		glDisable(GL_BLEND);
	}
}

/* called from drawview.c, as an extra per-window draw option */
void drawPropCircle(const struct bContext *C, TransInfo *t)
{
	if (t->flag & T_PROP_EDIT) {
		RegionView3D *rv3d = CTX_wm_region_view3d(C);
		float tmat[4][4], imat[4][4];
		float center[3];

		UI_ThemeColor(TH_GRID);

		if(t->spacetype == SPACE_VIEW3D && rv3d != NULL)
		{
			copy_m4_m4(tmat, rv3d->viewmat);
			invert_m4_m4(imat, tmat);
		}
		else
		{
			unit_m4(tmat);
			unit_m4(imat);
		}

		glPushMatrix();

		VECCOPY(center, t->center);

		if((t->spacetype == SPACE_VIEW3D) && t->obedit)
		{
			mul_m4_v3(t->obedit->obmat, center); /* because t->center is in local space */
		}
		else if(t->spacetype == SPACE_IMAGE)
		{
			float aspx, aspy;

			ED_space_image_uv_aspect(t->sa->spacedata.first, &aspx, &aspy);
			glScalef(1.0f/aspx, 1.0f/aspy, 1.0);
		}

		set_inverted_drawing(1);
		drawcircball(GL_LINE_LOOP, center, t->prop_size, imat);
		set_inverted_drawing(0);

		glPopMatrix();
	}
}

void clip_draw_curfra_label(SpaceClip *sc, float x, float y)
{
	uiStyle *style = UI_GetStyle();
	int fontid = style->widget.uifont_id;
	char numstr[32];
	float font_dims[2] = {0.0f, 0.0f};

	/* frame number */
	BLF_size(fontid, 11.0f, U.dpi);
	BLI_snprintf(numstr, sizeof(numstr), "%d", sc->user.framenr);

	BLF_width_and_height(fontid, numstr, &font_dims[0], &font_dims[1]);

	glRecti(x, y, x + font_dims[0] + 6.0f, y + font_dims[1] + 4.0f);

	UI_ThemeColor(TH_TEXT);
	BLF_position(fontid, x + 2.0f, y + 2.0f, 0.0f);
	BLF_draw(fontid, numstr, sizeof(numstr));
}

static void draw_textscroll(SpaceText *st, rcti *scroll, rcti *back)
{
	bTheme *btheme = UI_GetTheme();
	uiWidgetColors wcol = btheme->tui.wcol_scroll;
	unsigned char col[4];
	float rad;
	
	UI_ThemeColor(TH_BACK);
	glRecti(back->xmin, back->ymin, back->xmax, back->ymax);

	uiWidgetScrollDraw(&wcol, scroll, &st->txtbar, (st->flags & ST_SCROLL_SELECT) ? UI_SCROLL_PRESSED : 0);

	uiSetRoundBox(UI_CNR_ALL);
	rad = 0.4f * min_ii(BLI_rcti_size_x(&st->txtscroll), BLI_rcti_size_y(&st->txtscroll));
	UI_GetThemeColor3ubv(TH_HILITE, col);
	col[3] = 48;
	glColor4ubv(col);
	glEnable(GL_BLEND);
	uiRoundBox(st->txtscroll.xmin + 1, st->txtscroll.ymin, st->txtscroll.xmax - 1, st->txtscroll.ymax, rad);
	glDisable(GL_BLEND);
}

/* Draw current frame number in a little green box beside the current frame indicator */
static void draw_cfra_number(Scene *scene, View2D *v2d, const float cfra, const bool time)
{
	const uiFontStyle *fstyle = UI_FSTYLE_WIDGET;
	float xscale, yscale, x, y;
	char numstr[32] = "    t";  /* t is the character to start replacing from */
	int slen;
	
	/* because the frame number text is subject to the same scaling as the contents of the view */
	UI_view2d_scale_get(v2d, &xscale, &yscale);
	glScalef(1.0f / xscale, 1.0f, 1.0f);
	
	/* get timecode string 
	 *	- padding on str-buf passed so that it doesn't sit on the frame indicator
	 *	- power = 0, gives 'standard' behavior for time
	 *	  but power = 1 is required for frames (to get integer frames)
	 */
	if (time) {
		BLI_timecode_string_from_time(&numstr[4], sizeof(numstr) - 4, 0, FRA2TIME(cfra), FPS, U.timecode_style);
	}
	else {
		BLI_timecode_string_from_time_seconds(&numstr[4], sizeof(numstr) - 4, 1, cfra);
	}

	slen = UI_fontstyle_string_width(fstyle, numstr) - 1;
	
	/* get starting coordinates for drawing */
	x = cfra * xscale;
	y = 0.9f * U.widget_unit;
	
	/* draw green box around/behind text */
	UI_ThemeColorShade(TH_CFRAME, 0);
	glRectf(x, y,  x + slen,  y + 0.75f * U.widget_unit);
	
	/* draw current frame number - black text */
	UI_ThemeColor(TH_TEXT);
	UI_fontstyle_draw_simple(fstyle, x - 0.25f * U.widget_unit, y + 0.15f * U.widget_unit, numstr);
	
	/* restore view transform */
	glScalef(xscale, 1.0, 1.0);
}