1

/* $Id$ */

     2

     3

/** @file widget.cpp */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "functions.h"

     8

#include "player.h"

     9

#include "table/sprites.h"

    10

#include "table/strings.h"

    11

#include "window.h"

    12

#include "gfx.h"

    13

#include "viewport.h"

    14

    15

static Point HandleScrollbarHittest(const Scrollbar *sb, int top, int bottom)

    16

{

    17

	Point pt;

    18

	int height, count, pos, cap;

    19

    20

	top += 10;

    21

	bottom -= 9;

    22

    23

	height = (bottom - top);

    24

    25

	pos = sb->pos;

    26

	count = sb->count;

    27

	cap = sb->cap;

    28

    29

	if (count != 0) top += height * pos / count;

    30

    31

	if (cap > count) cap = count;

    32

	if (count != 0) bottom -= (count - pos - cap) * height / count;

    33

    34

	pt.x = top;

    35

	pt.y = bottom - 1;

    36

	return pt;

    37

}

    38

    39

/*****************************************************

    40

 * Special handling for the scrollbar widget type.

    41

 * Handles the special scrolling buttons and other

    42

 * scrolling.

    43

 * Parameters:

    44

 *   w   - Window.

    45

 *   wi  - Pointer to the scrollbar widget.

    46

 *   x   - The X coordinate of the mouse click.

    47

 *   y   - The Y coordinate of the mouse click.

    48

 */

    49

    50

void ScrollbarClickHandler(Window *w, const Widget *wi, int x, int y)

    51

{

    52

	int mi, ma, pos;

    53

	Scrollbar *sb;

    54

    55

	switch (wi->type) {

    56

		case WWT_SCROLLBAR: {

    57

			/* vertical scroller */

    58

			w->flags4 &= ~WF_HSCROLL;

    59

			w->flags4 &= ~WF_SCROLL2;

    60

			mi = wi->top;

    61

			ma = wi->bottom;

    62

			pos = y;

    63

			sb = &w->vscroll;

    64

			break;

    65

		}

    66

		case WWT_SCROLL2BAR: {

    67

			/* 2nd vertical scroller */

    68

			w->flags4 &= ~WF_HSCROLL;

    69

			w->flags4 |= WF_SCROLL2;

    70

			mi = wi->top;

    71

			ma = wi->bottom;

    72

			pos = y;

    73

			sb = &w->vscroll2;

    74

			break;

    75

		}

    76

		case  WWT_HSCROLLBAR: {

    77

			/* horizontal scroller */

    78

			w->flags4 &= ~WF_SCROLL2;

    79

			w->flags4 |= WF_HSCROLL;

    80

			mi = wi->left;

    81

			ma = wi->right;

    82

			pos = x;

    83

			sb = &w->hscroll;

    84

			break;

    85

		}

    86

		default: return; //this should never happen

    87

	}

    88

	if (pos <= mi+9) {

    89

		/* Pressing the upper button? */

    90

		w->flags4 |= WF_SCROLL_UP;

    91

		if (_scroller_click_timeout == 0) {

    92

			_scroller_click_timeout = 6;

    93

			if (sb->pos != 0) sb->pos--;

    94

		}

    95

		_left_button_clicked = false;

    96

	} else if (pos >= ma-10) {

    97

		/* Pressing the lower button? */

    98

		w->flags4 |= WF_SCROLL_DOWN;

    99

   100

		if (_scroller_click_timeout == 0) {

   101

			_scroller_click_timeout = 6;

   102

			if ((byte)(sb->pos + sb->cap) < sb->count)

   103

				sb->pos++;

   104

		}

   105

		_left_button_clicked = false;

   106

	} else {

   107

		Point pt = HandleScrollbarHittest(sb, mi, ma);

   108

   109

		if (pos < pt.x) {

   110

			sb->pos = max(sb->pos - sb->cap, 0);

   111

		} else if (pos > pt.y) {

   112

			sb->pos = min(

   113

				sb->pos + sb->cap,

   114

				max(sb->count - sb->cap, 0)

   115

			);

   116

		} else {

   117

			_scrollbar_start_pos = pt.x - mi - 9;

   118

			_scrollbar_size = ma - mi - 23;

   119

			w->flags4 |= WF_SCROLL_MIDDLE;

   120

			_scrolling_scrollbar = true;

   121

			_cursorpos_drag_start = _cursor.pos;

   122

		}

   123

	}

   124

   125

	SetWindowDirty(w);

   126

}

   127

   128

/** Returns the index for the widget located at the given position

   129

 * relative to the window. It includes all widget-corner pixels as well.

   130

 * @param *w Window to look inside

   131

 * @param  x

   132

 * @param  y Window client coordinates

   133

 * @return A widget index, or -1 if no widget was found.

   134

 */

   135

int GetWidgetFromPos(const Window *w, int x, int y)

   136

{

   137

	uint index;

   138

	int found_index = -1;

   139

   140

	/* Go through the widgets and check if we find the widget that the coordinate is

   141

	 * inside. */

   142

	for (index = 0; index < w->widget_count; index++) {

   143

		const Widget *wi = &w->widget[index];

   144

		if (wi->type == WWT_EMPTY || wi->type == WWT_FRAME) continue;

   145

   146

		if (x >= wi->left && x <= wi->right && y >= wi->top &&  y <= wi->bottom &&

   147

				!IsWindowWidgetHidden(w, index)) {

   148

			found_index = index;

   149

		}

   150

	}

   151

   152

	return found_index;

   153

}

   154

   155

   156

void DrawFrameRect(int left, int top, int right, int bottom, int ctab, FrameFlags flags)

   157

{

   158

	uint dark         = _colour_gradient[ctab][3];

   159

	uint medium_dark  = _colour_gradient[ctab][5];

   160

	uint medium_light = _colour_gradient[ctab][6];

   161

	uint light        = _colour_gradient[ctab][7];

   162

   163

	if (flags & FR_TRANSPARENT) {

   164

		GfxFillRect(left, top, right, bottom, PALETTE_TO_TRANSPARENT | (1 << USE_COLORTABLE));

   165

	} else {

   166

		uint interior;

   167

   168

		if (flags & FR_LOWERED) {

   169

			GfxFillRect(left,     top,     left,  bottom,     dark);

   170

			GfxFillRect(left + 1, top,     right, top,        dark);

   171

			GfxFillRect(right,    top + 1, right, bottom - 1, light);

   172

			GfxFillRect(left + 1, bottom,  right, bottom,     light);

   173

			interior = (flags & FR_DARKENED ? medium_dark : medium_light);

   174

		} else {

   175

			GfxFillRect(left,     top,    left,      bottom - 1, light);

   176

			GfxFillRect(left + 1, top,    right - 1, top,        light);

   177

			GfxFillRect(right,    top,    right,     bottom - 1, dark);

   178

			GfxFillRect(left,     bottom, right,     bottom,     dark);

   179

			interior = medium_dark;

   180

		}

   181

		if (!(flags & FR_BORDERONLY)) {

   182

			GfxFillRect(left + 1, top + 1, right - 1, bottom - 1, interior);

   183

		}

   184

	}

   185

}

   186

   187

   188

void DrawWindowWidgets(const Window *w)

   189

{

   190

	const DrawPixelInfo* dpi = _cur_dpi;

   191

	Rect r;

   192

	uint i;

   193

   194

	for (i = 0; i < w->widget_count; i++) {

   195

		const Widget *wi = &w->widget[i];

   196

		bool clicked = IsWindowWidgetLowered(w, i);

   197

   198

		if (dpi->left > (r.right=/*w->left + */wi->right) ||

   199

				dpi->left + dpi->width <= (r.left=wi->left/* + w->left*/) ||

   200

				dpi->top > (r.bottom=/*w->top +*/ wi->bottom) ||

   201

				dpi->top + dpi->height <= (r.top = /*w->top +*/ wi->top) ||

   202

				IsWindowWidgetHidden(w, i)) {

   203

			continue;

   204

		}

   205

   206

		switch (wi->type & WWT_MASK) {

   207

		case WWT_IMGBTN:

   208

		case WWT_IMGBTN_2: {

   209

			int img = wi->data;

   210

			assert(img != 0);

   211

			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);

   212

   213

			/* show different image when clicked for WWT_IMGBTN_2 */

   214

			if ((wi->type & WWT_MASK) == WWT_IMGBTN_2 && clicked) img++;

   215

			DrawSprite(img, PAL_NONE, r.left + 1 + clicked, r.top + 1 + clicked);

   216

			goto draw_default;

   217

		}

   218

   219

		case WWT_PANEL: {

   220

			assert(wi->data == 0);

   221

			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);

   222

			goto draw_default;

   223

		}

   224

   225

		case WWT_TEXTBTN:

   226

		case WWT_TEXTBTN_2: {

   227

			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);

   228

			}

   229

		/* fall through */

   230

   231

		case WWT_LABEL: {

   232

			StringID str = wi->data;

   233

   234

			if ((wi->type & WWT_MASK) == WWT_TEXTBTN_2 && clicked) str++;

   235

   236

			DrawStringCentered(((r.left + r.right + 1) >> 1) + clicked, ((r.top + r.bottom + 1) >> 1) - 5 + clicked, str, 0);

   237

			goto draw_default;

   238

		}

   239

   240

		case WWT_TEXT: {

   241

			StringID str = wi->data;

   242

   243

			if (str != STR_NULL) DrawStringTruncated(r.left, r.top, str, wi->color, r.right - r.left);

   244

			break;

   245

		}

   246

   247

		case WWT_INSET: {

   248

			StringID str = wi->data;

   249

			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, FR_LOWERED | FR_DARKENED);

   250

   251

			if (str != STR_NULL) DrawStringTruncated(r.left + 2, r.top + 1, str, 0, r.right - r.left - 10);

   252

			goto draw_default;

   253

		}

   254

   255

		case WWT_MATRIX: {

   256

			int c, d, ctr;

   257

			int x, amt1, amt2;

   258

			int color;

   259

   260

			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);

   261

   262

			c = GB(wi->data, 0, 8);

   263

			amt1 = (wi->right - wi->left + 1) / c;

   264

   265

			d = GB(wi->data, 8, 8);

   266

			amt2 = (wi->bottom - wi->top + 1) / d;

   267

   268

			color = _colour_gradient[wi->color & 0xF][6];

   269

   270

			x = r.left;

   271

			for (ctr = c; ctr > 1; ctr--) {

   272

				x += amt1;

   273

				GfxFillRect(x, r.top + 1, x, r.bottom - 1, color);

   274

			}

   275

   276

			x = r.top;

   277

			for (ctr = d; ctr > 1; ctr--) {

   278

				x += amt2;

   279

				GfxFillRect(r.left + 1, x, r.right - 1, x, color);

   280

			}

   281

   282

			color = _colour_gradient[wi->color&0xF][4];

   283

   284

			x = r.left - 1;

   285

			for (ctr = c; ctr > 1; ctr--) {

   286

				x += amt1;

   287

				GfxFillRect(x, r.top + 1, x, r.bottom - 1, color);

   288

			}

   289

   290

			x = r.top - 1;

   291

			for (ctr = d; ctr > 1; ctr--) {

   292

				x += amt2;

   293

				GfxFillRect(r.left+1, x, r.right-1, x, color);

   294

			}

   295

   296

			goto draw_default;

   297

		}

   298

   299

		/* vertical scrollbar */

   300

		case WWT_SCROLLBAR: {

   301

			Point pt;

   302

			int c1,c2;

   303

   304

			assert(r.right - r.left == 11); // XXX - to ensure the same sizes are used everywhere!

   305

   306

			/* draw up/down buttons */

   307

			clicked = ((w->flags4 & (WF_SCROLL_UP | WF_HSCROLL | WF_SCROLL2)) == WF_SCROLL_UP);

   308

			DrawFrameRect(r.left, r.top, r.right, r.top + 9, wi->color, (clicked) ? FR_LOWERED : FR_NONE);

   309

			DoDrawString(UPARROW, r.left + 2 + clicked, r.top + clicked, 0x10);

   310

   311

			clicked = (((w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL | WF_SCROLL2)) == WF_SCROLL_DOWN));

   312

			DrawFrameRect(r.left, r.bottom - 9, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);

   313

			DoDrawString(DOWNARROW, r.left + 2 + clicked, r.bottom - 9 + clicked, 0x10);

   314

   315

			c1 = _colour_gradient[wi->color&0xF][3];

   316

			c2 = _colour_gradient[wi->color&0xF][7];

   317

   318

			/* draw "shaded" background */

   319

			GfxFillRect(r.left, r.top+10, r.right, r.bottom-10, c2);

   320

			GfxFillRect(r.left, r.top+10, r.right, r.bottom-10, c1 | (1 << PALETTE_MODIFIER_GREYOUT));

   321

   322

			/* draw shaded lines */

   323

			GfxFillRect(r.left+2, r.top+10, r.left+2, r.bottom-10, c1);

   324

			GfxFillRect(r.left+3, r.top+10, r.left+3, r.bottom-10, c2);

   325

			GfxFillRect(r.left+7, r.top+10, r.left+7, r.bottom-10, c1);

   326

			GfxFillRect(r.left+8, r.top+10, r.left+8, r.bottom-10, c2);

   327

   328

			pt = HandleScrollbarHittest(&w->vscroll, r.top, r.bottom);

   329

			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);

   330

			break;

   331

		}

   332

		case WWT_SCROLL2BAR: {

   333

			Point pt;

   334

			int c1,c2;

   335

   336

			assert(r.right - r.left == 11); // XXX - to ensure the same sizes are used everywhere!

   337

   338

			/* draw up/down buttons */

   339

			clicked = ((w->flags4 & (WF_SCROLL_UP | WF_HSCROLL | WF_SCROLL2)) == (WF_SCROLL_UP | WF_SCROLL2));

   340

			DrawFrameRect(r.left, r.top, r.right, r.top + 9, wi->color,  (clicked) ? FR_LOWERED : FR_NONE);

   341

			DoDrawString(UPARROW, r.left + 2 + clicked, r.top + clicked, 0x10);

   342

   343

			clicked = ((w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL | WF_SCROLL2)) == (WF_SCROLL_DOWN | WF_SCROLL2));

   344

			DrawFrameRect(r.left, r.bottom - 9, r.right, r.bottom, wi->color,  (clicked) ? FR_LOWERED : FR_NONE);

   345

			DoDrawString(DOWNARROW, r.left + 2 + clicked, r.bottom - 9 + clicked, 0x10);

   346

   347

			c1 = _colour_gradient[wi->color&0xF][3];

   348

			c2 = _colour_gradient[wi->color&0xF][7];

   349

   350

			/* draw "shaded" background */

   351

			GfxFillRect(r.left, r.top+10, r.right, r.bottom-10, c2);

   352

			GfxFillRect(r.left, r.top+10, r.right, r.bottom-10, c1 | (1 << PALETTE_MODIFIER_GREYOUT));

   353

   354

			/* draw shaded lines */

   355

			GfxFillRect(r.left+2, r.top+10, r.left+2, r.bottom-10, c1);

   356

			GfxFillRect(r.left+3, r.top+10, r.left+3, r.bottom-10, c2);

   357

			GfxFillRect(r.left+7, r.top+10, r.left+7, r.bottom-10, c1);

   358

			GfxFillRect(r.left+8, r.top+10, r.left+8, r.bottom-10, c2);

   359

   360

			pt = HandleScrollbarHittest(&w->vscroll2, r.top, r.bottom);

   361

			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);

   362

			break;

   363

		}

   364

   365

		/* horizontal scrollbar */

   366

		case WWT_HSCROLLBAR: {

   367

			Point pt;

   368

			int c1,c2;

   369

   370

			assert(r.bottom - r.top == 11); // XXX - to ensure the same sizes are used everywhere!

   371

   372

			clicked = ((w->flags4 & (WF_SCROLL_UP | WF_HSCROLL)) == (WF_SCROLL_UP | WF_HSCROLL));

   373

			DrawFrameRect(r.left, r.top, r.left + 9, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);

   374

			DrawSprite(SPR_ARROW_LEFT, PAL_NONE, r.left + 1 + clicked, r.top + 1 + clicked);

   375

   376

			clicked = ((w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL)) == (WF_SCROLL_DOWN | WF_HSCROLL));

   377

			DrawFrameRect(r.right-9, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);

   378

			DrawSprite(SPR_ARROW_RIGHT, PAL_NONE, r.right - 8 + clicked, r.top + 1 + clicked);

   379

   380

			c1 = _colour_gradient[wi->color&0xF][3];

   381

			c2 = _colour_gradient[wi->color&0xF][7];

   382

   383

			/* draw "shaded" background */

   384

			GfxFillRect(r.left+10, r.top, r.right-10, r.bottom, c2);

   385

			GfxFillRect(r.left+10, r.top, r.right-10, r.bottom, c1 | (1 << PALETTE_MODIFIER_GREYOUT));

   386

   387

			/* draw shaded lines */

   388

			GfxFillRect(r.left+10, r.top+2, r.right-10, r.top+2, c1);

   389

			GfxFillRect(r.left+10, r.top+3, r.right-10, r.top+3, c2);

   390

			GfxFillRect(r.left+10, r.top+7, r.right-10, r.top+7, c1);

   391

			GfxFillRect(r.left+10, r.top+8, r.right-10, r.top+8, c2);

   392

   393

			/* draw actual scrollbar */

   394

			pt = HandleScrollbarHittest(&w->hscroll, r.left, r.right);

   395

			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);

   396

   397

			break;

   398

		}

   399

   400

		case WWT_FRAME: {

   401

			int c1,c2;

   402

			int x2 = r.left; // by default the left side is the left side of the widget

   403

   404

			if (wi->data != 0) x2 = DrawString(r.left + 6, r.top, wi->data, 0);

   405

   406

			c1 = _colour_gradient[wi->color][3];

   407

			c2 = _colour_gradient[wi->color][7];

   408

   409

			/*Line from upper left corner to start of text */

   410

			GfxFillRect(r.left, r.top+4, r.left+4,r.top+4, c1);

   411

			GfxFillRect(r.left+1, r.top+5, r.left+4,r.top+5, c2);

   412

   413

			/* Line from end of text to upper right corner */

   414

			GfxFillRect(x2, r.top+4, r.right-1,r.top+4,c1);

   415

			GfxFillRect(x2, r.top+5, r.right-2,r.top+5,c2);

   416

   417

			/* Line from upper left corner to bottom left corner */

   418

			GfxFillRect(r.left, r.top+5, r.left, r.bottom-1, c1);

   419

			GfxFillRect(r.left+1, r.top+6, r.left+1, r.bottom-2, c2);

   420

   421

			/*Line from upper right corner to bottom right corner */

   422

			GfxFillRect(r.right-1, r.top+5, r.right-1, r.bottom-2, c1);

   423

			GfxFillRect(r.right, r.top+4, r.right, r.bottom-1, c2);

   424

   425

			GfxFillRect(r.left+1, r.bottom-1, r.right-1, r.bottom-1, c1);

   426

			GfxFillRect(r.left, r.bottom, r.right, r.bottom, c2);

   427

   428

			goto draw_default;

   429

		}

   430

   431

		case WWT_STICKYBOX: {

   432

			assert(r.right - r.left == 11); // XXX - to ensure the same sizes are used everywhere!

   433

   434

			clicked = !!(w->flags4 & WF_STICKY);

   435

			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);

   436

			DrawSprite((clicked) ? SPR_PIN_UP : SPR_PIN_DOWN, PAL_NONE, r.left + 2 + clicked, r.top + 3 + clicked);

   437

			break;

   438

		}

   439

   440

		case WWT_RESIZEBOX: {

   441

			assert(r.right - r.left == 11); // XXX - to ensure the same sizes are used everywhere!

   442

   443

			clicked = !!(w->flags4 & WF_SIZING);

   444

			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, (clicked) ? FR_LOWERED : FR_NONE);

   445

			DrawSprite(SPR_WINDOW_RESIZE, PAL_NONE, r.left + 3 + clicked, r.top + 3 + clicked);

   446

			break;

   447

		}

   448

   449

		case WWT_CLOSEBOX: {

   450

			assert(r.right - r.left == 10); // ensure the same sizes are used everywhere

   451

   452

			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, FR_NONE);

   453

			DrawString(r.left + 2, r.top + 2, STR_00C5, 0);

   454

			break;

   455

		}

   456

   457

		case WWT_CAPTION: {

   458

			assert(r.bottom - r.top == 13); // XXX - to ensure the same sizes are used everywhere!

   459

			DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, FR_BORDERONLY);

   460

			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);

   461

   462

			if (w->caption_color != 0xFF) {

   463

				GfxFillRect(r.left+2, r.top+2, r.right-2, r.bottom-2, _colour_gradient[_player_colors[w->caption_color]][4]);

   464

			}

   465

   466

			DrawStringCenteredTruncated(r.left + 2, r.right - 2, r.top+2, wi->data, 0x84);

   467

draw_default:;

   468

			if (IsWindowWidgetDisabled(w, i)) {

   469

				GfxFillRect(r.left+1, r.top+1, r.right-1, r.bottom-1, _colour_gradient[wi->color&0xF][2] | (1 << PALETTE_MODIFIER_GREYOUT));

   470

			}

   471

		}

   472

		}

   473

	}

   474

   475

   476

	if (w->flags4 & WF_WHITE_BORDER_MASK) {

   477

		//DrawFrameRect(w->left, w->top, w->left + w->width-1, w->top+w->height-1, 0xF, 0x10);

   478

		DrawFrameRect(0, 0, w->width-1, w->height-1, 0xF, FR_BORDERONLY);

   479

	}

   480

   481

}

   482

   483

static const Widget _dropdown_menu_widgets[] = {

   484

{      WWT_PANEL,   RESIZE_NONE,     0,     0, 0,     0, 0, 0x0, STR_NULL},

   485

{  WWT_SCROLLBAR,   RESIZE_NONE,     0,     0, 0,     0, 0, 0x0, STR_0190_SCROLL_BAR_SCROLLS_LIST},

   486

{   WIDGETS_END},

   487

};

   488

   489

static int GetDropdownItem(const Window *w)

   490

{

   491

	byte item, counter;

   492

	int y;