tron@2186: /* $Id$ */
tron@2186: 
belugas@6928: /** @file widget.cpp */
belugas@6928: 
truelight@0: #include "stdafx.h"
Darkvater@1891: #include "openttd.h"
tron@2163: #include "functions.h"
tron@2154: #include "player.h"
tron@1363: #include "table/sprites.h"
tron@507: #include "table/strings.h"
truelight@0: #include "viewport.h"
rubidium@8602: #include "window_gui.h"
truelight@0: 
Darkvater@2436: static Point HandleScrollbarHittest(const Scrollbar *sb, int top, int bottom)
truelight@0: {
truelight@0: 	Point pt;
truelight@0: 	int height, count, pos, cap;
truelight@0: 
truelight@0: 	top += 10;
truelight@0: 	bottom -= 9;
truelight@193: 
truelight@0: 	height = (bottom - top);
truelight@0: 
truelight@0: 	pos = sb->pos;
truelight@0: 	count = sb->count;
truelight@0: 	cap = sb->cap;
truelight@0: 
tron@2026: 	if (count != 0) top += height * pos / count;
truelight@193: 
truelight@0: 	if (cap > count) cap = count;
tron@2639: 	if (count != 0) bottom -= (count - pos - cap) * height / count;
truelight@0: 
truelight@0: 	pt.x = top;
truelight@0: 	pt.y = bottom - 1;
truelight@0: 	return pt;
truelight@0: }
truelight@0: 
belugas@6977: /** Special handling for the scrollbar widget type.
truelight@0:  * Handles the special scrolling buttons and other
truelight@0:  * scrolling.
belugas@6977:  * @param w Window on which a scroll was performed.
belugas@6977:  * @param wi Pointer to the scrollbar widget.
belugas@6977:  * @param x The X coordinate of the mouse click.
belugas@6977:  * @param y The Y coordinate of the mouse click. */
truelight@0: void ScrollbarClickHandler(Window *w, const Widget *wi, int x, int y)
truelight@0: {
truelight@0: 	int mi, ma, pos;
truelight@0: 	Scrollbar *sb;
truelight@0: 
bjarni@842: 	switch (wi->type) {
bjarni@842: 		case WWT_SCROLLBAR: {
belugas@6928: 			/* vertical scroller */
bjarni@842: 			w->flags4 &= ~WF_HSCROLL;
bjarni@842: 			w->flags4 &= ~WF_SCROLL2;
bjarni@842: 			mi = wi->top;
bjarni@842: 			ma = wi->bottom;
bjarni@842: 			pos = y;
bjarni@842: 			sb = &w->vscroll;
bjarni@842: 			break;
bjarni@842: 		}
bjarni@842: 		case WWT_SCROLL2BAR: {
belugas@6928: 			/* 2nd vertical scroller */
bjarni@842: 			w->flags4 &= ~WF_HSCROLL;
bjarni@842: 			w->flags4 |= WF_SCROLL2;
bjarni@842: 			mi = wi->top;
bjarni@842: 			ma = wi->bottom;
bjarni@842: 			pos = y;
bjarni@842: 			sb = &w->vscroll2;
bjarni@842: 			break;
bjarni@842: 		}
bjarni@842: 		case  WWT_HSCROLLBAR: {
belugas@6928: 			/* horizontal scroller */
truelight@867: 			w->flags4 &= ~WF_SCROLL2;
bjarni@842: 			w->flags4 |= WF_HSCROLL;
bjarni@842: 			mi = wi->left;
bjarni@842: 			ma = wi->right;
bjarni@842: 			pos = x;
bjarni@842: 			sb = &w->hscroll;
truelight@867: 			break;
bjarni@842: 		}
bjarni@845: 		default: return; //this should never happen
truelight@0: 	}
truelight@0: 	if (pos <= mi+9) {
belugas@6928: 		/* Pressing the upper button? */
tron@2597: 		w->flags4 |= WF_SCROLL_UP;
tron@2597: 		if (_scroller_click_timeout == 0) {
tron@2597: 			_scroller_click_timeout = 6;
tron@2597: 			if (sb->pos != 0) sb->pos--;
truelight@0: 		}
tron@2597: 		_left_button_clicked = false;
truelight@0: 	} else if (pos >= ma-10) {
belugas@6928: 		/* Pressing the lower button? */
tron@2597: 		w->flags4 |= WF_SCROLL_DOWN;
truelight@193: 
tron@2597: 		if (_scroller_click_timeout == 0) {
tron@2597: 			_scroller_click_timeout = 6;
tron@2597: 			if ((byte)(sb->pos + sb->cap) < sb->count)
tron@2597: 				sb->pos++;
truelight@0: 		}
tron@2597: 		_left_button_clicked = false;
truelight@0: 	} else {
truelight@0: 		Point pt = HandleScrollbarHittest(sb, mi, ma);
truelight@0: 
truelight@0: 		if (pos < pt.x) {
truelight@0: 			sb->pos = max(sb->pos - sb->cap, 0);
truelight@0: 		} else if (pos > pt.y) {
truelight@0: 			sb->pos = min(
truelight@193: 				sb->pos + sb->cap,
truelight@0: 				max(sb->count - sb->cap, 0)
truelight@0: 			);
truelight@0: 		} else {
truelight@0: 			_scrollbar_start_pos = pt.x - mi - 9;
truelight@0: 			_scrollbar_size = ma - mi - 23;
truelight@0: 			w->flags4 |= WF_SCROLL_MIDDLE;
truelight@0: 			_scrolling_scrollbar = true;
truelight@0: 			_cursorpos_drag_start = _cursor.pos;
truelight@0: 		}
truelight@0: 	}
truelight@0: 
truelight@0: 	SetWindowDirty(w);
truelight@0: }
truelight@0: 
Darkvater@2021: /** Returns the index for the widget located at the given position
Darkvater@2021:  * relative to the window. It includes all widget-corner pixels as well.
Darkvater@2021:  * @param *w Window to look inside
belugas@6977:  * @param  x The Window client X coordinate
belugas@6977:  * @param  y The Window client y coordinate
Darkvater@2021:  * @return A widget index, or -1 if no widget was found.
truelight@0:  */
Darkvater@2436: int GetWidgetFromPos(const Window *w, int x, int y)
truelight@0: {
rubidium@5236: 	uint index;
rubidium@5236: 	int found_index = -1;
truelight@0: 
belugas@6928: 	/* Go through the widgets and check if we find the widget that the coordinate is
belugas@6928: 	 * inside. */
rubidium@5236: 	for (index = 0; index < w->widget_count; index++) {
rubidium@5236: 		const Widget *wi = &w->widget[index];
tron@2639: 		if (wi->type == WWT_EMPTY || wi->type == WWT_FRAME) continue;
truelight@0: 
Darkvater@2021: 		if (x >= wi->left && x <= wi->right && y >= wi->top &&  y <= wi->bottom &&
rubidium@8493: 				!w->IsWidgetHidden(index)) {
tron@2639: 			found_index = index;
truelight@0: 		}
truelight@0: 	}
truelight@0: 
truelight@0: 	return found_index;
truelight@0: }
truelight@0: 
truelight@0: 
tron@4437: void DrawFrameRect(int left, int top, int right, int bottom, int ctab, FrameFlags flags)
tron@4437: {
tron@4444: 	uint dark         = _colour_gradient[ctab][3];
tron@4444: 	uint medium_dark  = _colour_gradient[ctab][5];
tron@4444: 	uint medium_light = _colour_gradient[ctab][6];
tron@4444: 	uint light        = _colour_gradient[ctab][7];
tron@4437: 
tron@4438: 	if (flags & FR_TRANSPARENT) {
peter1138@5919: 		GfxFillRect(left, top, right, bottom, PALETTE_TO_TRANSPARENT | (1 << USE_COLORTABLE));
tron@4437: 	} else {
tron@4437: 		uint interior;
tron@4437: 
tron@4437: 		if (flags & FR_LOWERED) {
tron@4437: 			GfxFillRect(left,     top,     left,  bottom,     dark);
tron@4437: 			GfxFillRect(left + 1, top,     right, top,        dark);
tron@4437: 			GfxFillRect(right,    top + 1, right, bottom - 1, light);
tron@4437: 			GfxFillRect(left + 1, bottom,  right, bottom,     light);
tron@4437: 			interior = (flags & FR_DARKENED ? medium_dark : medium_light);
tron@4437: 		} else {
tron@4437: 			GfxFillRect(left,     top,    left,      bottom - 1, light);
tron@4437: 			GfxFillRect(left + 1, top,    right - 1, top,        light);
tron@4437: 			GfxFillRect(right,    top,    right,     bottom - 1, dark);
tron@4437: 			GfxFillRect(left,     bottom, right,     bottom,     dark);
tron@4437: 			interior = medium_dark;
tron@4437: 		}
tron@4437: 		if (!(flags & FR_BORDERONLY)) {
tron@4437: 			GfxFillRect(left + 1, top + 1, right - 1, bottom - 1, interior);
tron@4437: 		}
tron@4437: 	}
tron@4437: }
tron@4437: 
tron@4437: 
Darkvater@2436: void DrawWindowWidgets(const Window *w)
truelight@0: {
tron@2548: 	const DrawPixelInfo* dpi = _cur_dpi;
truelight@193: 
smatz@8458: 	for (uint i = 0; i < w->widget_count; i++) {
rubidium@5236: 		const Widget *wi = &w->widget[i];
rubidium@8493: 		bool clicked = w->IsWidgetLowered(i);
smatz@8458: 		Rect r;
Darkvater@1657: 
smatz@8458: 		if (dpi->left > (r.right = wi->right) ||
smatz@8458: 				dpi->left + dpi->width <= (r.left = wi->left) ||
smatz@8458: 				dpi->top > (r.bottom = wi->bottom) ||
smatz@8458: 				dpi->top + dpi->height <= (r.top = wi->top) ||
rubidium@8493: 				w->IsWidgetHidden(i)) {
tron@2639: 			continue;
tron@2639: 		}
truelight@0: 
Darkvater@1657: 		switch (wi->type & WWT_MASK) {
Darkvater@4938: 		case WWT_IMGBTN:
Darkvater@4938: 		case WWT_IMGBTN_2: {
smatz@8458: 			SpriteID img = wi->data;
Darkvater@4938: 			assert(img != 0);
rubidium@5838: 			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);
truelight@0: 
Darkvater@4938: 			/* show different image when clicked for WWT_IMGBTN_2 */
Darkvater@4938: 			if ((wi->type & WWT_MASK) == WWT_IMGBTN_2 && clicked) img++;
peter1138@5919: 			DrawSprite(img, PAL_NONE, r.left + 1 + clicked, r.top + 1 + clicked);
Darkvater@4938: 			goto draw_default;
Darkvater@4938: 		}
Darkvater@1657: 
Darkvater@4938: 		case WWT_PANEL: {
Darkvater@4938: 			assert(wi->data == 0);
rubidium@5838: 			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);
truelight@0: 			goto draw_default;
truelight@0: 		}
truelight@0: 
Darkvater@4939: 		case WWT_TEXTBTN:
Darkvater@4939: 		case WWT_TEXTBTN_2: {
rubidium@5838: 			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);
truelight@0: 			}
truelight@0: 		/* fall through */
truelight@0: 
belugas@4345: 		case WWT_LABEL: {
Darkvater@4547: 			StringID str = wi->data;
truelight@0: 
Darkvater@4939: 			if ((wi->type & WWT_MASK) == WWT_TEXTBTN_2 && clicked) str++;
truelight@193: 
belugas@8320: 			DrawStringCentered(((r.left + r.right + 1) >> 1) + clicked, ((r.top + r.bottom + 1) >> 1) - 5 + clicked, str, TC_FROMSTRING);
ludde@2064: 			goto draw_default;
truelight@0: 		}
truelight@0: 
belugas@6604: 		case WWT_TEXT: {
smatz@8458: 			const StringID str = wi->data;
belugas@6604: 
belugas@6604: 			if (str != STR_NULL) DrawStringTruncated(r.left, r.top, str, wi->color, r.right - r.left);
belugas@6604: 			break;
belugas@6604: 		}
belugas@6604: 
Darkvater@4939: 		case WWT_INSET: {
smatz@8458: 			const StringID str = wi->data;
hackykid@1938: 			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, FR_LOWERED | FR_DARKENED);
truelight@0: 
belugas@8320: 			if (str != STR_NULL) DrawStringTruncated(r.left + 2, r.top + 1, str, TC_FROMSTRING, r.right - r.left - 10);
truelight@0: 			goto draw_default;
truelight@0: 		}
truelight@0: 
truelight@0: 		case WWT_MATRIX: {
truelight@193: 			int c, d, ctr;
truelight@0: 			int x, amt1, amt2;
truelight@0: 			int color;
truelight@193: 
rubidium@5838: 			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);
truelight@193: 
Darkvater@4547: 			c = GB(wi->data, 0, 8);
truelight@0: 			amt1 = (wi->right - wi->left + 1) / c;
truelight@0: 
Darkvater@4547: 			d = GB(wi->data, 8, 8);
truelight@0: 			amt2 = (wi->bottom - wi->top + 1) / d;
truelight@0: 
tron@4444: 			color = _colour_gradient[wi->color & 0xF][6];
truelight@193: 
truelight@0: 			x = r.left;
peter1138@2801: 			for (ctr = c; ctr > 1; ctr--) {
truelight@0: 				x += amt1;
tron@2639: 				GfxFillRect(x, r.top + 1, x, r.bottom - 1, color);
truelight@0: 			}
truelight@0: 
truelight@0: 			x = r.top;
peter1138@2801: 			for (ctr = d; ctr > 1; ctr--) {
truelight@0: 				x += amt2;
tron@2639: 				GfxFillRect(r.left + 1, x, r.right - 1, x, color);
truelight@0: 			}
truelight@0: 
smatz@8458: 			color = _colour_gradient[wi->color & 0xF][4];
truelight@0: 
tron@2639: 			x = r.left - 1;
peter1138@2801: 			for (ctr = c; ctr > 1; ctr--) {
truelight@0: 				x += amt1;
tron@2639: 				GfxFillRect(x, r.top + 1, x, r.bottom - 1, color);
truelight@0: 			}
truelight@0: 
tron@2639: 			x = r.top - 1;
peter1138@2801: 			for (ctr = d; ctr > 1; ctr--) {
truelight@0: 				x += amt2;
smatz@8458: 				GfxFillRect(r.left + 1, x, r.right - 1, x, color);
truelight@0: 			}
truelight@0: 
truelight@193: 			goto draw_default;
truelight@0: 		}
truelight@0: 
belugas@6928: 		/* vertical scrollbar */
truelight@0: 		case WWT_SCROLLBAR: {
truelight@0: 			Point pt;
smatz@8458: 			int c1, c2;
truelight@0: 
smatz@8458: 			assert(wi->data == 0);
darkvater@893: 			assert(r.right - r.left == 11); // XXX - to ensure the same sizes are used everywhere!
darkvater@893: 
belugas@6928: 			/* draw up/down buttons */
Darkvater@4940: 			clicked = ((w->flags4 & (WF_SCROLL_UP | WF_HSCROLL | WF_SCROLL2)) == WF_SCROLL_UP);
rubidium@5838: 			DrawFrameRect(r.left, r.top, r.right, r.top + 9, wi->color, (clicked) ? FR_LOWERED : FR_NONE);
belugas@8320: 			DoDrawString(UPARROW, r.left + 2 + clicked, r.top + clicked, TC_BLACK);
truelight@0: 
Darkvater@4940: 			clicked = (((w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL | WF_SCROLL2)) == WF_SCROLL_DOWN));
rubidium@5838: 			DrawFrameRect(r.left, r.bottom - 9, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);
belugas@8320: 			DoDrawString(DOWNARROW, r.left + 2 + clicked, r.bottom - 9 + clicked, TC_BLACK);
truelight@0: 
smatz@8458: 			c1 = _colour_gradient[wi->color & 0xF][3];
smatz@8458: 			c2 = _colour_gradient[wi->color & 0xF][7];
truelight@0: 
belugas@6928: 			/* draw "shaded" background */
smatz@8458: 			GfxFillRect(r.left, r.top + 10, r.right, r.bottom - 10, c2);
smatz@8458: 			GfxFillRect(r.left, r.top + 10, r.right, r.bottom - 10, c1 | (1 << PALETTE_MODIFIER_GREYOUT));
truelight@0: 
belugas@6928: 			/* draw shaded lines */
smatz@8458: 			GfxFillRect(r.left + 2, r.top + 10, r.left + 2, r.bottom - 10, c1);
smatz@8458: 			GfxFillRect(r.left + 3, r.top + 10, r.left + 3, r.bottom - 10, c2);
smatz@8458: 			GfxFillRect(r.left + 7, r.top + 10, r.left + 7, r.bottom - 10, c1);
smatz@8458: 			GfxFillRect(r.left + 8, r.top + 10, r.left + 8, r.bottom - 10, c2);
truelight@193: 
truelight@0: 			pt = HandleScrollbarHittest(&w->vscroll, r.top, r.bottom);
rubidium@5838: 			DrawFrameRect(r.left, pt.x, r.right, pt.y, wi->color, (w->flags4 & (WF_SCROLL_MIDDLE | WF_HSCROLL | WF_SCROLL2)) == WF_SCROLL_MIDDLE ? FR_LOWERED : FR_NONE);
bjarni@842: 			break;
bjarni@842: 		}
bjarni@842: 		case WWT_SCROLL2BAR: {
bjarni@842: 			Point pt;
smatz@8458: 			int c1, c2;
bjarni@842: 
smatz@8458: 			assert(wi->data == 0);
darkvater@893: 			assert(r.right - r.left == 11); // XXX - to ensure the same sizes are used everywhere!
darkvater@893: 
belugas@6928: 			/* draw up/down buttons */
Darkvater@4940: 			clicked = ((w->flags4 & (WF_SCROLL_UP | WF_HSCROLL | WF_SCROLL2)) == (WF_SCROLL_UP | WF_SCROLL2));
rubidium@5838: 			DrawFrameRect(r.left, r.top, r.right, r.top + 9, wi->color,  (clicked) ? FR_LOWERED : FR_NONE);
belugas@8320: 			DoDrawString(UPARROW, r.left + 2 + clicked, r.top + clicked, TC_BLACK);
bjarni@842: 
Darkvater@4940: 			clicked = ((w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL | WF_SCROLL2)) == (WF_SCROLL_DOWN | WF_SCROLL2));
rubidium@5838: 			DrawFrameRect(r.left, r.bottom - 9, r.right, r.bottom, wi->color,  (clicked) ? FR_LOWERED : FR_NONE);
belugas@8320: 			DoDrawString(DOWNARROW, r.left + 2 + clicked, r.bottom - 9 + clicked, TC_BLACK);
bjarni@842: 
smatz@8458: 			c1 = _colour_gradient[wi->color & 0xF][3];
smatz@8458: 			c2 = _colour_gradient[wi->color & 0xF][7];
bjarni@842: 
belugas@6928: 			/* draw "shaded" background */
smatz@8458: 			GfxFillRect(r.left, r.top + 10, r.right, r.bottom - 10, c2);
smatz@8458: 			GfxFillRect(r.left, r.top + 10, r.right, r.bottom - 10, c1 | (1 << PALETTE_MODIFIER_GREYOUT));
bjarni@842: 
belugas@6928: 			/* draw shaded lines */
smatz@8458: 			GfxFillRect(r.left + 2, r.top + 10, r.left + 2, r.bottom - 10, c1);
smatz@8458: 			GfxFillRect(r.left + 3, r.top + 10, r.left + 3, r.bottom - 10, c2);
smatz@8458: 			GfxFillRect(r.left + 7, r.top + 10, r.left + 7, r.bottom - 10, c1);
smatz@8458: 			GfxFillRect(r.left + 8, r.top + 10, r.left + 8, r.bottom - 10, c2);
bjarni@842: 
bjarni@842: 			pt = HandleScrollbarHittest(&w->vscroll2, r.top, r.bottom);
rubidium@5838: 			DrawFrameRect(r.left, pt.x, r.right, pt.y, wi->color, (w->flags4 & (WF_SCROLL_MIDDLE | WF_HSCROLL | WF_SCROLL2)) == (WF_SCROLL_MIDDLE | WF_SCROLL2) ? FR_LOWERED : FR_NONE);
truelight@0: 			break;
truelight@0: 		}
truelight@0: 
belugas@6928: 		/* horizontal scrollbar */
truelight@0: 		case WWT_HSCROLLBAR: {
truelight@0: 			Point pt;
smatz@8458: 			int c1, c2;
truelight@0: 
smatz@8458: 			assert(wi->data == 0);
darkvater@894: 			assert(r.bottom - r.top == 11); // XXX - to ensure the same sizes are used everywhere!
darkvater@893: 
Darkvater@4940: 			clicked = ((w->flags4 & (WF_SCROLL_UP | WF_HSCROLL)) == (WF_SCROLL_UP | WF_HSCROLL));
rubidium@5838: 			DrawFrameRect(r.left, r.top, r.left + 9, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);
peter1138@5919: 			DrawSprite(SPR_ARROW_LEFT, PAL_NONE, r.left + 1 + clicked, r.top + 1 + clicked);
truelight@0: 
Darkvater@4940: 			clicked = ((w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL)) == (WF_SCROLL_DOWN | WF_HSCROLL));
smatz@8458: 			DrawFrameRect(r.right - 9, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);
peter1138@5919: 			DrawSprite(SPR_ARROW_RIGHT, PAL_NONE, r.right - 8 + clicked, r.top + 1 + clicked);
truelight@0: 
smatz@8458: 			c1 = _colour_gradient[wi->color & 0xF][3];
smatz@8458: 			c2 = _colour_gradient[wi->color & 0xF][7];
truelight@0: 
belugas@6928: 			/* draw "shaded" background */
smatz@8458: 			GfxFillRect(r.left + 10, r.top, r.right - 10, r.bottom, c2);
smatz@8458: 			GfxFillRect(r.left + 10, r.top, r.right - 10, r.bottom, c1 | (1 << PALETTE_MODIFIER_GREYOUT));
truelight@0: 
belugas@6928: 			/* draw shaded lines */
smatz@8458: 			GfxFillRect(r.left + 10, r.top + 2, r.right - 10, r.top + 2, c1);
smatz@8458: 			GfxFillRect(r.left + 10, r.top + 3, r.right - 10, r.top + 3, c2);
smatz@8458: 			GfxFillRect(r.left + 10, r.top + 7, r.right - 10, r.top + 7, c1);
smatz@8458: 			GfxFillRect(r.left + 10, r.top + 8, r.right - 10, r.top + 8, c2);
truelight@0: 
belugas@6928: 			/* draw actual scrollbar */
truelight@0: 			pt = HandleScrollbarHittest(&w->hscroll, r.left, r.right);
rubidium@5838: 			DrawFrameRect(pt.x, r.top, pt.y, r.bottom, wi->color, (w->flags4 & (WF_SCROLL_MIDDLE | WF_HSCROLL)) == (WF_SCROLL_MIDDLE | WF_HSCROLL) ? FR_LOWERED : FR_NONE);
truelight@0: 
truelight@0: 			break;
truelight@0: 		}
truelight@0: 
truelight@0: 		case WWT_FRAME: {
smatz@8458: 			const StringID str = wi->data;
smatz@8458: 			int c1, c2;
darkvater@860: 			int x2 = r.left; // by default the left side is the left side of the widget
truelight@0: 
smatz@8458: 			if (str != STR_NULL) x2 = DrawString(r.left + 6, r.top, str, TC_FROMSTRING);
truelight@0: 
tron@4444: 			c1 = _colour_gradient[wi->color][3];
tron@4444: 			c2 = _colour_gradient[wi->color][7];
truelight@0: 
smatz@8458: 			/* Line from upper left corner to start of text */
smatz@8458: 			GfxFillRect(r.left, r.top + 4, r.left + 4, r.top + 4, c1);
smatz@8458: 			GfxFillRect(r.left + 1, r.top + 5, r.left + 4, r.top + 5, c2);
truelight@0: 
belugas@6928: 			/* Line from end of text to upper right corner */
smatz@8458: 			GfxFillRect(x2, r.top + 4, r.right - 1, r.top + 4, c1);
smatz@8458: 			GfxFillRect(x2, r.top + 5, r.right - 2, r.top + 5, c2);
truelight@0: 
belugas@6928: 			/* Line from upper left corner to bottom left corner */
smatz@8458: 			GfxFillRect(r.left, r.top + 5, r.left, r.bottom - 1, c1);
smatz@8458: 			GfxFillRect(r.left + 1, r.top + 6, r.left + 1, r.bottom - 2, c2);
truelight@0: 
belugas@6928: 			/*Line from upper right corner to bottom right corner */
smatz@8458: 			GfxFillRect(r.right - 1, r.top + 5, r.right - 1, r.bottom - 2, c1);
smatz@8458: 			GfxFillRect(r.right, r.top + 4, r.right, r.bottom - 1, c2);
truelight@0: 
smatz@8458: 			GfxFillRect(r.left + 1, r.bottom - 1, r.right - 1, r.bottom - 1, c1);
truelight@0: 			GfxFillRect(r.left, r.bottom, r.right, r.bottom, c2);
truelight@0: 
ludde@2064: 			goto draw_default;
truelight@0: 		}
truelight@0: 
darkvater@682: 		case WWT_STICKYBOX: {
smatz@8458: 			assert(wi->data == 0);
darkvater@893: 			assert(r.right - r.left == 11); // XXX - to ensure the same sizes are used everywhere!
peter1138@2703: 
peter1138@2703: 			clicked = !!(w->flags4 & WF_STICKY);
rubidium@5838: 			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);
peter1138@5919: 			DrawSprite((clicked) ? SPR_PIN_UP : SPR_PIN_DOWN, PAL_NONE, r.left + 2 + clicked, r.top + 3 + clicked);
darkvater@682: 			break;
darkvater@682: 		}
truelight@867: 
truelight@867: 		case WWT_RESIZEBOX: {
smatz@8458: 			assert(wi->data == 0);
darkvater@893: 			assert(r.right - r.left == 11); // XXX - to ensure the same sizes are used everywhere!
tron@915: 
Darkvater@1657: 			clicked = !!(w->flags4 & WF_SIZING);
rubidium@5838: 			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);
peter1138@5919: 			DrawSprite(SPR_WINDOW_RESIZE, PAL_NONE, r.left + 3 + clicked, r.top + 3 + clicked);
truelight@867: 			break;
truelight@867: 		}
truelight@867: 
peter1138@2757: 		case WWT_CLOSEBOX: {
smatz@8458: 			const StringID str = wi->data;
smatz@8458: 
smatz@8458: 			assert(str == STR_00C5 || str == STR_00C6); // black or silver cross
peter1138@2757: 			assert(r.right - r.left == 10); // ensure the same sizes are used everywhere
peter1138@2757: 
rubidium@5838: 			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, FR_NONE);
smatz@8458: 			DrawString(r.left + 2, r.top + 2, str, TC_FROMSTRING);
peter1138@2757: 			break;
peter1138@2757: 		}
peter1138@2757: 
truelight@0: 		case WWT_CAPTION: {
darkvater@893: 			assert(r.bottom - r.top == 13); // XXX - to ensure the same sizes are used everywhere!
hackykid@1938: 			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, FR_BORDERONLY);
smatz@8458: 			DrawFrameRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, wi->color, (w->caption_color == 0xFF) ? FR_LOWERED | FR_DARKENED : FR_LOWERED | FR_DARKENED | FR_BORDERONLY);
truelight@193: 
truelight@0: 			if (w->caption_color != 0xFF) {
smatz@8458: 				GfxFillRect(r.left + 2, r.top + 2, r.right - 2, r.bottom - 2, _colour_gradient[_player_colors[w->caption_color]][4]);
truelight@0: 			}
truelight@0: 
smatz@8458: 			DrawStringCenteredTruncated(r.left + 2, r.right - 2, r.top + 2, wi->data, 0x84);
truelight@0: draw_default:;
rubidium@8493: 			if (w->IsWidgetDisabled(i)) {
smatz@8458: 				GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, _colour_gradient[wi->color & 0xF][2] | (1 << PALETTE_MODIFIER_GREYOUT));
truelight@0: 			}
truelight@0: 		}
truelight@0: 		}
rubidium@5236: 	}
truelight@193: 
truelight@0: 
truelight@0: 	if (w->flags4 & WF_WHITE_BORDER_MASK) {
smatz@8458: 		DrawFrameRect(0, 0, w->width - 1, w->height - 1, 0xF, FR_BORDERONLY);
truelight@0: 	}
truelight@0: 
truelight@0: }
darkvater@164: 
truelight@883: static const Widget _dropdown_menu_widgets[] = {
Darkvater@4938: {      WWT_PANEL,   RESIZE_NONE,     0,     0, 0,     0, 0, 0x0, STR_NULL},
peter1138@5041: {  WWT_SCROLLBAR,   RESIZE_NONE,     0,     0, 0,     0, 0, 0x0, STR_0190_SCROLL_BAR_SCROLLS_LIST},
darkvater@176: {   WIDGETS_END},
darkvater@164: };
darkvater@164: 
Darkvater@2436: static int GetDropdownItem(const Window *w)
darkvater@164: {
peter1138@2448: 	byte item, counter;
darkvater@164: 	int y;
darkvater@164: 
darkvater@164: 	if (GetWidgetFromPos(w, _cursor.pos.x - w->left, _cursor.pos.y - w->top) < 0)
darkvater@164: 		return -1;
truelight@193: 
peter1138@5196: 	y = _cursor.pos.y - w->top - 2 + w->vscroll.pos * 10;
darkvater@164: 
darkvater@164: 	if (y < 0)
darkvater@164: 		return - 1;
darkvater@164: 
darkvater@164: 	item = y / 10;
rubidium@8578: 	if (item >= WP(w, dropdown_d).num_items || (HasBit(WP(w,dropdown_d).disabled_state, item) && !HasBit(WP(w,dropdown_d).hidden_state, item)) || WP(w,dropdown_d).items[item] == 0)
darkvater@164: 		return - 1;
darkvater@164: 
belugas@6928: 	/* Skip hidden items -- +1 for each hidden item before the clicked item. */
peter1138@2448: 	for (counter = 0; item >= counter; ++counter)
rubidium@8578: 		if (HasBit(WP(w, dropdown_d).hidden_state, counter)) item++;
peter1138@2448: 
darkvater@164: 	return item;
darkvater@164: }
darkvater@164: 
tron@1095: static void DropdownMenuWndProc(Window *w, WindowEvent *e)
darkvater@164: {
darkvater@164: 	int item;
darkvater@164: 
tron@2952: 	switch (e->event) {
bjarni@842: 		case WE_PAINT: {
bjarni@842: 			int x,y,i,sel;
peter1138@5196: 			int width, height;
darkvater@164: 
bjarni@842: 			DrawWindowWidgets(w);
darkvater@164: 
bjarni@842: 			x = 1;
peter1138@5196: 			y = 2 - w->vscroll.pos * 10;
darkvater@164: 
rubidium@8578: 			sel    = WP(w, dropdown_d).selected_index;
peter1138@5196: 			width  = w->widget[0].right - 3;
peter1138@5196: 			height = w->widget[0].bottom - 3;
darkvater@164: 
rubidium@8578: 			for (i = 0; WP(w, dropdown_d).items[i] != INVALID_STRING_ID; i++, sel--) {
rubidium@8578: 				if (HasBit(WP(w, dropdown_d).hidden_state, i)) continue;
peter1138@5196: 
peter1138@5196: 				if (y >= 0 && y <= height) {
rubidium@8578: 					if (WP(w, dropdown_d).items[i] != STR_NULL) {
peter1138@5196: 						if (sel == 0) GfxFillRect(x + 1, y, x + width, y + 9, 0);
rubidium@8578: 						DrawStringTruncated(x + 2, y, WP(w, dropdown_d).items[i], sel == 0 ? TC_WHITE : TC_BLACK, x + width);
peter1138@5196: 
rubidium@8578: 						if (HasBit(WP(w, dropdown_d).disabled_state, i)) {
peter1138@5196: 							GfxFillRect(x, y, x + width, y + 9,
peter1138@5919: 								(1 << PALETTE_MODIFIER_GREYOUT) | _colour_gradient[_dropdown_menu_widgets[0].color][5]
peter1138@5196: 							);
peter1138@5196: 						}
peter1138@5196: 					} else {
peter1138@5196: 						int c1 = _colour_gradient[_dropdown_menu_widgets[0].color][3];
peter1138@5196: 						int c2 = _colour_gradient[_dropdown_menu_widgets[0].color][7];
peter1138@5196: 
peter1138@5196: 						GfxFillRect(x + 1, y + 3, x + w->width - 5, y + 3, c1);
peter1138@5196: 						GfxFillRect(x + 1, y + 4, x + w->width - 5, y + 4, c2);
bjarni@842: 					}
bjarni@842: 				}
bjarni@1177: 				y += 10;
bjarni@842: 			}
bjarni@842: 		} break;
bjarni@842: 
bjarni@842: 		case WE_CLICK: {
peter1138@5041: 			if (e->we.click.widget != 0) break;
bjarni@842: 			item = GetDropdownItem(w);
bjarni@842: 			if (item >= 0) {
rubidium@8578: 				WP(w, dropdown_d).click_delay = 4;
rubidium@8578: 				WP(w, dropdown_d).selected_index = item;
bjarni@842: 				SetWindowDirty(w);
bjarni@842: 			}
bjarni@842: 		} break;
bjarni@842: 
bjarni@842: 		case WE_MOUSELOOP: {
rubidium@8578: 			Window *w2 = FindWindowById(WP(w, dropdown_d).parent_wnd_class, WP(w,dropdown_d).parent_wnd_num);
bjarni@842: 			if (w2 == NULL) {
bjarni@842: 				DeleteWindow(w);
bjarni@842: 				return;
darkvater@164: 			}
darkvater@164: 
rubidium@8578: 			if (WP(w, dropdown_d).click_delay != 0 && --WP(w,dropdown_d).click_delay == 0) {
bjarni@842: 				WindowEvent e;
bjarni@842: 				e.event = WE_DROPDOWN_SELECT;
rubidium@8578: 				e.we.dropdown.button = WP(w, dropdown_d).parent_button;
rubidium@8578: 				e.we.dropdown.index  = WP(w, dropdown_d).selected_index;
bjarni@842: 				w2->wndproc(w2, &e);
bjarni@842: 				DeleteWindow(w);
bjarni@842: 				return;
bjarni@842: 			}
truelight@193: 
rubidium@8578: 			if (WP(w, dropdown_d).drag_mode) {
bjarni@842: 				item = GetDropdownItem(w);
bjarni@842: 
bjarni@842: 				if (!_left_button_clicked) {
rubidium@8578: 					WP(w, dropdown_d).drag_mode = false;
tron@2639: 					if (item < 0) return;
rubidium@8578: 					WP(w, dropdown_d).click_delay = 2;
bjarni@842: 				} else {
tron@2639: 					if (item < 0) return;
bjarni@842: 				}
bjarni@842: 
rubidium@8578: 				WP(w, dropdown_d).selected_index = item;
bjarni@842: 				SetWindowDirty(w);
bjarni@842: 			}
bjarni@842: 		} break;
bjarni@842: 
bjarni@842: 		case WE_DESTROY: {
rubidium@8578: 			Window *w2 = FindWindowById(WP(w, dropdown_d).parent_wnd_class, WP(w,dropdown_d).parent_wnd_num);
bjarni@842: 			if (w2 != NULL) {
rubidium@8578: 				w2->RaiseWidget(WP(w, dropdown_d).parent_button);
rubidium@8578: 				w2->InvalidateWidget(WP(w, dropdown_d).parent_button);
bjarni@842: 			}
bjarni@842: 		} break;
darkvater@164: 	}
darkvater@164: }
darkvater@164: 
peter1138@2448: void ShowDropDownMenu(Window *w, const StringID *strings, int selected, int button, uint32 disabled_mask, uint32 hidden_mask)
darkvater@164: {
truelight@867: 	int i;
darkvater@164: 	const Widget *wi;
darkvater@164: 	Window *w2;
peter1138@5041: 	const Window *w3;
rubidium@8493: 	bool is_dropdown_menu_shown = w->IsWidgetLowered(button);
peter1138@5041: 	int top, height;
peter1138@5041: 	int screen_top, screen_bottom;
peter1138@5041: 	bool scroll = false;
truelight@193: 
darkvater@164: 	DeleteWindowById(WC_DROPDOWN_MENU, 0);
darkvater@164: 
belugas@4719: 	if (is_dropdown_menu_shown) return;
darkvater@164: 
rubidium@8493: 	w->LowerWidget(button);
darkvater@164: 
glx@8524: 	w->InvalidateWidget(button);
truelight@193: 
tron@2639: 	for (i = 0; strings[i] != INVALID_STRING_ID; i++) {}
tron@2639: 	if (i == 0) return;
darkvater@164: 
darkvater@164: 	wi = &w->widget[button];
darkvater@164: 
peter1138@2448: 	if (hidden_mask != 0) {
tron@2639: 		uint j;
tron@2639: 
peter1138@2636: 		for (j = 0; strings[j] != INVALID_STRING_ID; j++) {
skidd13@8424: 			if (HasBit(hidden_mask, j)) i--;
bjarni@842: 		}
bjarni@842: 	}
bjarni@842: 
peter1138@5041: 	/* The preferred position is just below the dropdown calling widget */
peter1138@5041: 	top = w->top + wi->bottom + 2;
peter1138@5041: 	height = i * 10 + 4;
peter1138@5041: 
peter1138@5041: 	w3 = FindWindowById(WC_STATUS_BAR, 0);
peter1138@5041: 	screen_bottom = w3 == NULL ? _screen.height : w3->top;
peter1138@5041: 
peter1138@5041: 	/* Check if the dropdown will fully fit below the widget */
peter1138@5041: 	if (top + height >= screen_bottom) {
peter1138@5041: 		w3 = FindWindowById(WC_MAIN_TOOLBAR, 0);
peter1138@5041: 		screen_top = w3 == NULL ? 0 : w3->top + w3->height;
peter1138@5041: 
peter1138@5041: 		/* If not, check if it will fit above the widget */
peter1138@5041: 		if (w->top + wi->top - height - 1 > screen_top) {
peter1138@5041: 			top = w->top + wi->top - height - 1;
peter1138@5041: 		} else {
peter1138@5041: 			/* ... and lastly if it won't, enable the scroll bar and fit the
peter1138@5041: 			 * list in below the widget */
peter1138@5196: 			int rows = (screen_bottom - 4 - top) / 10;
peter1138@5196: 			height = rows * 10 + 4;
peter1138@5041: 			scroll = true;
peter1138@5041: 		}
peter1138@5041: 	}
peter1138@5041: 
darkvater@164: 	w2 = AllocateWindow(
darkvater@164: 		w->left + wi[-1].left + 1,
peter1138@5041: 		top,
truelight@867: 		wi->right - wi[-1].left + 1,
peter1138@5041: 		height,
darkvater@164: 		DropdownMenuWndProc,
belugas@4573: 		WC_DROPDOWN_MENU,
darkvater@164: 		_dropdown_menu_widgets);
darkvater@164: 
truelight@867: 	w2->widget[0].color = wi->color;
truelight@867: 	w2->widget[0].right = wi->right - wi[-1].left;
peter1138@5041: 	w2->widget[0].bottom = height - 1;
darkvater@164: 
rubidium@8493: 	w2->SetWidgetHiddenState(1, !scroll);
peter1138@5041: 
peter1138@5041: 	if (scroll) {
peter1138@5041: 		/* We're scrolling, so enable the scroll bar and shrink the list by
peter1138@5041: 		 * the scrollbar's width */
peter1138@5041: 		w2->widget[1].color  = wi->color;
peter1138@5041: 		w2->widget[1].right  = w2->widget[0].right;
peter1138@5041: 		w2->widget[1].left   = w2->widget[1].right - 11;
peter1138@5041: 		w2->widget[1].bottom = height - 1;
peter1138@5041: 		w2->widget[0].right -= 12;
peter1138@5041: 
peter1138@5196: 		w2->vscroll.cap   = (height - 4) / 10;
peter1138@5196: 		w2->vscroll.count = i;
peter1138@5041: 	}
peter1138@5041: 
peter1138@5041: 	w2->desc_flags = WDF_DEF_WIDGET;
darkvater@164: 	w2->flags4 &= ~WF_WHITE_BORDER_MASK;
peter1138@2629: 
rubidium@8578: 	WP(w2, dropdown_d).disabled_state = disabled_mask;
rubidium@8578: 	WP(w2, dropdown_d).hidden_state = hidden_mask;
peter1138@2636: 
rubidium@8578: 	WP(w2, dropdown_d).parent_wnd_class = w->window_class;
rubidium@8578: 	WP(w2, dropdown_d).parent_wnd_num = w->window_number;
rubidium@8578: 	WP(w2, dropdown_d).parent_button = button;
peter1138@2636: 
rubidium@8578: 	WP(w2, dropdown_d).num_items = i;
rubidium@8578: 	WP(w2, dropdown_d).selected_index = selected;
rubidium@8578: 	WP(w2, dropdown_d).items = strings;
peter1138@2636: 
rubidium@8578: 	WP(w2, dropdown_d).click_delay = 0;
rubidium@8578: 	WP(w2, dropdown_d).drag_mode = true;
darkvater@164: }
bjarni@6073: 
bjarni@6073: 
bjarni@6075: static void ResizeWidgets(Window *w, byte a, byte b)
bjarni@6075: {
bjarni@6075: 	int16 offset = w->widget[a].left;
bjarni@6075: 	int16 length = w->widget[b].right - offset;
bjarni@6075: 
bjarni@6075: 	w->widget[a].right  = (length / 2) + offset;
bjarni@6075: 
bjarni@6073: 	w->widget[b].left  = w->widget[a].right + 1;
bjarni@6073: }
bjarni@6073: 
bjarni@6075: static void ResizeWidgets(Window *w, byte a, byte b, byte c)
bjarni@6073: {
bjarni@6075: 	int16 offset = w->widget[a].left;
bjarni@6075: 	int16 length = w->widget[c].right - offset;
bjarni@6073: 
bjarni@6075: 	w->widget[a].right = length / 3;
bjarni@6073: 	w->widget[b].right = w->widget[a].right * 2;
bjarni@6073: 
bjarni@6075: 	w->widget[a].right += offset;
bjarni@6075: 	w->widget[b].right += offset;
bjarni@6075: 
bjarni@6073: 	/* Now the right side of the buttons are set. We will now set the left sides next to them */
bjarni@6073: 	w->widget[b].left  = w->widget[a].right + 1;
bjarni@6073: 	w->widget[c].left  = w->widget[b].right + 1;
bjarni@6073: }
bjarni@6073: 
bjarni@6075: /** Evenly distribute some widgets when resizing horizontally (often a button row)
bjarni@6075:  *  When only two arguments are given, the widgets are presumed to be on a line and only the ends are given
belugas@6977:  * @param w Window to modify
bjarni@6075:  * @param left The leftmost widget to resize
bjarni@6075:  * @param right The rightmost widget to resize. Since right side of it is used, remember to set it to RESIZE_RIGHT
bjarni@6075:  */
bjarni@6073: void ResizeButtons(Window *w, byte left, byte right)
bjarni@6073: {
bjarni@6075: 	int16 num_widgets = right - left + 1;
bjarni@6075: 
bjarni@6075: 	if (num_widgets < 2) NOT_REACHED();
bjarni@6075: 
bjarni@6075: 	switch (num_widgets) {
bjarni@6075: 		case 2: ResizeWidgets(w, left, right); break;
bjarni@6075: 		case 3: ResizeWidgets(w, left, left + 1, right); break;
bjarni@6075: 		default: {
bjarni@6075: 			/* Looks like we got more than 3 widgets to resize
bjarni@6075: 			 * Now we will find the middle of the space desinated for the widgets
bjarni@6075: 			 * and place half of the widgets on each side of it and call recursively.
bjarni@6075: 			 * Eventually we will get down to blocks of 2-3 widgets and we got code to handle those cases */
bjarni@6075: 			int16 offset = w->widget[left].left;
bjarni@6075: 			int16 length = w->widget[right].right - offset;
bjarni@6075: 			byte widget = ((num_widgets - 1)/ 2) + left; // rightmost widget of the left side
bjarni@6075: 
bjarni@6075: 			/* Now we need to find the middle of the widgets.
bjarni@6075: 			 * It will not always be the middle because if we got an uneven number of widgets,
bjarni@6075: 			 *   we will need it to be 2/5, 3/7 and so on
bjarni@6075: 			 * To get this, we multiply with num_widgets/num_widgets. Since we calculate in int, we will get:
bjarni@6075: 			 *
bjarni@6075: 			 *    num_widgets/2 (rounding down)
bjarni@6075: 			 *   ---------------
bjarni@6075: 			 *     num_widgets
bjarni@6075: 			 *
bjarni@6075: 			 * as multiplier to length. We just multiply before divide to that we stay in the int area though */
bjarni@6075: 			int16 middle = ((length * num_widgets) / (2 * num_widgets)) + offset;
bjarni@6075: 
bjarni@6075: 			/* Set left and right on the widgets, that's next to our "middle" */
bjarni@6075: 			w->widget[widget].right = middle;
bjarni@6075: 			w->widget[widget + 1].left = w->widget[widget].right + 1;
bjarni@6075: 			/* Now resize the left and right of the middle */
bjarni@6075: 			ResizeButtons(w, left, widget);
bjarni@6075: 			ResizeButtons(w, widget + 1, right);
bjarni@6075: 		}
bjarni@6073: 	}
bjarni@6073: }