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

/** Special handling for the scrollbar widget type.

    40

 * Handles the special scrolling buttons and other

    41

 * scrolling.

    42

 * @param w Window on which a scroll was performed.

    43

 * @param wi Pointer to the scrollbar widget.

    44

 * @param x The X coordinate of the mouse click.

    45

 * @param y The Y coordinate of the mouse click. */

    46

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

    47

{

    48

	int mi, ma, pos;

    49

	Scrollbar *sb;

    50

    51

	switch (wi->type) {

    52

		case WWT_SCROLLBAR: {

    53

			/* vertical scroller */

    54

			w->flags4 &= ~WF_HSCROLL;

    55

			w->flags4 &= ~WF_SCROLL2;

    56

			mi = wi->top;

    57

			ma = wi->bottom;

    58

			pos = y;

    59

			sb = &w->vscroll;

    60

			break;

    61

		}

    62

		case WWT_SCROLL2BAR: {

    63

			/* 2nd vertical scroller */

    64

			w->flags4 &= ~WF_HSCROLL;

    65

			w->flags4 |= WF_SCROLL2;

    66

			mi = wi->top;

    67

			ma = wi->bottom;

    68

			pos = y;

    69

			sb = &w->vscroll2;

    70

			break;

    71

		}

    72

		case  WWT_HSCROLLBAR: {

    73

			/* horizontal scroller */

    74

			w->flags4 &= ~WF_SCROLL2;

    75

			w->flags4 |= WF_HSCROLL;

    76

			mi = wi->left;

    77

			ma = wi->right;

    78

			pos = x;

    79

			sb = &w->hscroll;

    80

			break;

    81

		}

    82

		default: return; //this should never happen

    83

	}

    84

	if (pos <= mi+9) {

    85

		/* Pressing the upper button? */

    86

		w->flags4 |= WF_SCROLL_UP;

    87

		if (_scroller_click_timeout == 0) {

    88

			_scroller_click_timeout = 6;

    89

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

    90

		}

    91

		_left_button_clicked = false;

    92

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

    93

		/* Pressing the lower button? */

    94

		w->flags4 |= WF_SCROLL_DOWN;

    95

    96

		if (_scroller_click_timeout == 0) {

    97

			_scroller_click_timeout = 6;

    98

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

    99

				sb->pos++;

   100

		}

   101

		_left_button_clicked = false;

   102

	} else {

   103

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

   104

   105

		if (pos < pt.x) {

   106

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

   107

		} else if (pos > pt.y) {

   108

			sb->pos = min(

   109

				sb->pos + sb->cap,

   110

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

   111

			);

   112

		} else {

   113

			_scrollbar_start_pos = pt.x - mi - 9;

   114

			_scrollbar_size = ma - mi - 23;

   115

			w->flags4 |= WF_SCROLL_MIDDLE;

   116

			_scrolling_scrollbar = true;

   117

			_cursorpos_drag_start = _cursor.pos;

   118

		}

   119

	}

   120

   121

	SetWindowDirty(w);

   122

}

   123

   124

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

   125

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

   126

 * @param *w Window to look inside

   127

 * @param  x The Window client X coordinate

   128

 * @param  y The Window client y coordinate

   129

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

   130

 */

   131

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

   132

{

   133

	uint index;

   134

	int found_index = -1;

   135

   136

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

   137

	 * inside. */

   138

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

   139

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

   140

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

   141

   142

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

   144

			found_index = index;

   145

		}

   146

	}

   147

   148

	return found_index;

   149

}

   150

   151

   152

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

   153

{

   154

	uint dark         = _colour_gradient[ctab][3];

   155

	uint medium_dark  = _colour_gradient[ctab][5];

   156

	uint medium_light = _colour_gradient[ctab][6];

   157

	uint light        = _colour_gradient[ctab][7];

   158

   159

	if (flags & FR_TRANSPARENT) {

   160

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

   161

	} else {

   162

		uint interior;

   163

   164

		if (flags & FR_LOWERED) {

   165

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

   166

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

   167

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

   168

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

   169

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

   170

		} else {

   171

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

   172

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

   173

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

   174

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

   175

			interior = medium_dark;

   176

		}

   177

		if (!(flags & FR_BORDERONLY)) {

   178

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

   179

		}

   180

	}

   181

}

   182

   183

   184

void DrawWindowWidgets(const Window *w)

   185

{

   186

	const DrawPixelInfo* dpi = _cur_dpi;

   187

   189

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

   192

   198

			continue;

   199

		}

   200

   201

		switch (wi->type & WWT_MASK) {

   202

		case WWT_IMGBTN:

   203

		case WWT_IMGBTN_2: {

   205

			assert(img != 0);

   206

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

   207

   208

			/* show different image when clicked for WWT_IMGBTN_2 */

   209

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

   210

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

   211

			goto draw_default;

   212

		}

   213

   214

		case WWT_PANEL: {

   215

			assert(wi->data == 0);

   216

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

   217

			goto draw_default;

   218

		}

   219

   220

		case WWT_TEXTBTN:

   221

		case WWT_TEXTBTN_2: {

   222

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

   223

			}

   224

		/* fall through */

   225

   226

		case WWT_LABEL: {

   227

			StringID str = wi->data;

   228

   229

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

   230

   232

			goto draw_default;

   233

		}

   234

   235

		case WWT_TEXT: {

   237

   238

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

   239

			break;

   240

		}

   241

   242

		case WWT_INSET: {

   244

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

   245

   247

			goto draw_default;

   248

		}

   249

   250

		case WWT_MATRIX: {

   251

			int c, d, ctr;

   252

			int x, amt1, amt2;

   253

			int color;

   254

   255

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

   256

   257

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

   258

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

   259

   260

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

   261

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

   262

   263

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

   264

   265

			x = r.left;

   266

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

   267

				x += amt1;

   268

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

   269

			}

   270

   271

			x = r.top;

   272

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

   273

				x += amt2;

   274

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

   275

			}

   276

   278

   279

			x = r.left - 1;

   280

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

   281

				x += amt1;

   282

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

   283

			}

   284

   285

			x = r.top - 1;

   286

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

   287

				x += amt2;

   289

			}

   290

   291

			goto draw_default;

   292

		}

   293

   294

		/* vertical scrollbar */

   295

		case WWT_SCROLLBAR: {

   296

			Point pt;

   298

   300

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

   301

   302

			/* draw up/down buttons */

   303

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

   304

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

   306

   307

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

   308

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

   310

   313

   314

			/* draw "shaded" background */

   317

   318

			/* draw shaded lines */

   323

   324

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

   325

			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);

   326

			break;

   327

		}

   328

		case WWT_SCROLL2BAR: {

   329

			Point pt;

   331

   333

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

   334

   335

			/* draw up/down buttons */

   336

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

   337

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

   339

   340

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

   341

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

   343

   346

   347

			/* draw "shaded" background */

   350

   351

			/* draw shaded lines */

   356

   357

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

   358

			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);

   359

			break;

   360

		}

   361

   362

		/* horizontal scrollbar */

   363

		case WWT_HSCROLLBAR: {

   364

			Point pt;

   366

   368

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

   369

   370

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

   371

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

   372

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

   373

   374

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

   376

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

   377

   380

   381

			/* draw "shaded" background */

   384

   385

			/* draw shaded lines */

   390

   391

			/* draw actual scrollbar */

   392

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

   393

			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);

   394

   395

			break;

   396

		}

   397

   398

		case WWT_FRAME: {

   401

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

   402

   404

   405

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

   406

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

   407

   411

   412

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

   415

   416

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

   419

   420

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

   423

   425

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

   426

   427

			goto draw_default;

   428

		}

   429

   430

		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: {

   442

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

   443

   444

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

   445

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

   446

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

   447

			break;

   448

		}

   449

   450

		case WWT_CLOSEBOX: {

   454

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

   455

   456

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

   458

			break;

   459

		}

   460

   461

		case WWT_CAPTION: {

   462

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

   463

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

   465

   466

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

   468

			}

   469

   471

draw_default:;

   474

			}

   475

		}

   476

		}

   477

	}

   478

   479

   480

	if (w->flags4 & WF_WHITE_BORDER_MASK) {

   482

	}

   483

   484

}

   485

   486

static const Widget _dropdown_menu_widgets[] = {

   487

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

   488

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