1

#include "stdafx.h"

     2

#include "ttd.h"

     3

#include "debug.h"

     4

#include "map.h"

     5

#include "window.h"

     6

#include "gfx.h"

     7

#include "viewport.h"

     8

#include "console.h"

     9

    10

// delta between mouse cursor and upper left corner of dragged window

    11

static Point _drag_delta;

    12

    13

void HandleButtonClick(Window *w, byte widget)

    14

{

    15

	w->click_state |= (1 << widget);

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	w->flags4 |= 5 << WF_TIMEOUT_SHL;

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	InvalidateWidget(w, widget);

    18

}

    19

    20

void DispatchLeftClickEvent(Window *w, int x, int y) {

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	WindowEvent e;

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	const Widget *wi;

    23

    24

	e.click.pt.x = x;

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	e.click.pt.y = y;

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	e.event = WE_CLICK;

    27

    28

	if (w->desc_flags & WDF_DEF_WIDGET) {

    29

		e.click.widget = GetWidgetFromPos(w, x, y);

    30

		if (e.click.widget < 0) return; /* exit if clicked outside of widgets */

    31

    32

		wi = &w->widget[e.click.widget];

    33

    34

		/* don't allow any interaction if the button has been disabled */

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		if (HASBIT(w->disabled_state, e.click.widget))

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			return;

    37

    38

		if (wi->type & 0xE0) {

    39

			/* special widget handling for buttons*/

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			switch(wi->type) {

    41

			case WWT_IMGBTN  | WWB_PUSHBUTTON: /* WWT_PUSHIMGBTN */

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			case WWT_TEXTBTN | WWB_PUSHBUTTON: /* WWT_PUSHTXTBTN */

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				HandleButtonClick(w, e.click.widget);

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				break;

    45

			case WWT_NODISTXTBTN:

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				break;

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			}

    48

		} else if (wi->type == WWT_SCROLLBAR || wi->type == WWT_SCROLL2BAR || wi->type == WWT_HSCROLLBAR) {

    49

			ScrollbarClickHandler(w, wi, e.click.pt.x, e.click.pt.y);

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		}

    51

    52

		if (w->desc_flags & WDF_STD_BTN) {

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			if (e.click.widget == 0) { /* 'X' */

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				DeleteWindow(w);

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				return;

    56

			}

    57

    58

			if (e.click.widget == 1) { /* 'Title bar' */

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				StartWindowDrag(w); // if not return then w = StartWindowDrag(w); to get correct pointer

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				return;

    61

			}

    62

		}

    63

    64

		if (w->desc_flags & WDF_RESIZABLE && wi->type == WWT_RESIZEBOX) {

    65

			StartWindowSizing(w); // if not return then w = StartWindowSizing(w); to get correct pointer

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			return;

    67

		}

    68

    69

		if (w->desc_flags & WDF_STICKY_BUTTON && wi->type == WWT_STICKYBOX) {

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			TOGGLEBIT(w->click_state, e.click.widget);

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			w->flags4 ^= WF_STICKY;

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			InvalidateWidget(w, e.click.widget);

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			return;

    74

		}

    75

	}

    76

    77

	w->wndproc(w, &e);

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}

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    80

void DispatchRightClickEvent(Window *w, int x, int y) {

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	WindowEvent e;

    82

    83

	/* default tooltips handler? */

    84

	if (w->desc_flags & WDF_STD_TOOLTIPS) {

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		e.click.widget = GetWidgetFromPos(w, x, y);

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		if (e.click.widget < 0)

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			return; /* exit if clicked outside of widgets */

    88

    89

		if (w->widget[e.click.widget].tooltips != 0) {

    90

			GuiShowTooltips(w->widget[e.click.widget].tooltips);

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			return;

    92

		}

    93

	}

    94

    95

	e.event = WE_RCLICK;

    96

	e.click.pt.x = x;

    97

	e.click.pt.y = y;

    98

	w->wndproc(w, &e);

    99

}

   100

   101

   102

void DispatchMouseWheelEvent(Window *w, uint widget, int wheel)

   103

{

   104

	const Widget *wi1 = &w->widget[widget];

   105

	const Widget *wi2 = &w->widget[widget + 1];

   106

	Scrollbar *sb;

   107

   108

	/* The listbox can only scroll if scrolling was done on the scrollbar itself,

   109

	 * or on the listbox (and the next item is (must be) the scrollbar)

   110

	 * XXX - should be rewritten as a widget-dependent scroller but that's

   111

	 * not happening until someone rewrites the whole widget-code */

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	if ((sb = &w->vscroll,  wi1->type == WWT_SCROLLBAR)  || (sb = &w->vscroll2, wi1->type == WWT_SCROLL2BAR)  ||

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			(sb = &w->vscroll2, wi2->type == WWT_SCROLL2BAR) || (sb = &w->vscroll, wi2->type == WWT_SCROLLBAR) ) {

   114

   115

		if (sb->count > sb->cap) {

   116

			int pos = clamp(sb->pos + wheel, 0, sb->count - sb->cap);

   117

			if (pos != sb->pos) {

   118

				sb->pos = pos;

   119

				SetWindowDirty(w);

   120

			}

   121

		}

   122

	}

   123

}

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   125

   126

void DrawOverlappedWindowForAll(int left, int top, int right, int bottom)

   127

{

   128

	Window *w;

   129

	DrawPixelInfo bk;

   130

	_cur_dpi = &bk;

   131

   132

	for(w=_windows; w!=_last_window; w++) {

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		if (right > w->left &&

   134

				bottom > w->top &&

   135

				left < w->left + w->width &&

   136

				top < w->top + w->height) {

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				DrawOverlappedWindow(w, left, top, right, bottom);

   138

			}

   139

	}

   140

}

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   142

void DrawOverlappedWindow(Window *w, int left, int top, int right, int bottom)

   143

{

   144

	Window *v = w;

   145

	int x;

   146

   147

	while (++v != _last_window) {

   148

		if (right > v->left &&

   149

		 		bottom > v->top &&

   150

				left < v->left + v->width &&

   151

				top < v->top + v->height) {

   152

   153

			if (left < (x=v->left)) {

   154

				DrawOverlappedWindow(w, left, top, x, bottom);

   155

				DrawOverlappedWindow(w, x, top, right, bottom);

   156

				return;

   157

			}

   158

   159

			if (right > (x=v->left + v->width)) {

   160

				DrawOverlappedWindow(w, left, top, x, bottom);

   161

				DrawOverlappedWindow(w, x, top, right, bottom);

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				return;

   163

			}

   164

   165

			if (top < (x=v->top)) {

   166

				DrawOverlappedWindow(w, left, top, right, x);

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				DrawOverlappedWindow(w, left, x, right, bottom);

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				return;

   169

			}

   170

   171

			if (bottom > (x=v->top + v->height)) {

   172

				DrawOverlappedWindow(w, left, top, right, x);

   173

				DrawOverlappedWindow(w, left, x, right, bottom);

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				return;

   175

			}

   176

   177

			return;

   178

		}

   179

	}

   180

   181

	{

   182

		DrawPixelInfo *dp = _cur_dpi;

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		dp->width = right - left;

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		dp->height = bottom - top;

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		dp->left = left - w->left;

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		dp->top = top - w->top;

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		dp->pitch = _screen.pitch;

   188

		dp->dst_ptr = _screen.dst_ptr + top * _screen.pitch + left;

   189

		dp->zoom = 0;

   190

		CallWindowEventNP(w, WE_PAINT);

   191

	}

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}

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   194

void CallWindowEventNP(Window *w, int event)

   195

{

   196

	WindowEvent e;

   197

   198

	e.event = event;

   199

	w->wndproc(w, &e);

   200

}

   201

   202

void SetWindowDirty(Window *w)

   203

{

   204

	if (w == NULL)

   205

		return;

   206

   207

	SetDirtyBlocks(w->left, w->top, w->left + w->width, w->top + w->height);

   208

}

   209

   210

void DeleteWindow(Window *w)

   211

{

   212

	WindowClass wc;

   213

	WindowNumber wn;

   214

	ViewPort *vp;

   215

	Window *v;

   216

	int count;

   217

   218

	if (w == NULL)

   219

		return;

   220

   221

	if (_thd.place_mode != 0 && _thd.window_class == w->window_class && _thd.window_number == w->window_number) {

   222

		ResetObjectToPlace();

   223

	}

   224

   225

	wc = w->window_class;

   226

	wn = w->window_number;

   227

   228

	CallWindowEventNP(w, WE_DESTROY);

   229

   230

	w = FindWindowById(wc, wn);

   231

   232

	vp = w->viewport;

   233

	w->viewport = NULL;

   234

	if (vp != NULL) {

   235

		_active_viewports &= ~(1 << (vp - _viewports));

   236

		vp->width = 0;

   237

	}

   238

   239

	SetWindowDirty(w);

   240

   241

	free(w->widget);

   242

   243

	v = --_last_window;

   244

	count = (byte*)v - (byte*)w;

   245

	memmove(w, w + 1, count);

   246

}

   247

   248

Window *FindWindowById(WindowClass cls, WindowNumber number)

   249

{

   250

	Window *w;

   251

   252

	for(w=_windows; w!=_last_window; w++) {

   253

		if (w->window_class == cls &&

   254

			  w->window_number == number) {

   255

			return w;

   256

		}

   257

	}

   258

   259

	return NULL;

   260

}

   261

   262

void DeleteWindowById(WindowClass cls, WindowNumber number)

   263

{

   264

	DeleteWindow(FindWindowById(cls, number));

   265

}

   266

   267

void DeleteWindowByClass(WindowClass cls)

   268

{

   269

	Window *w;

   270

	for (w = _windows; w != _last_window;) {

   271

		if (w->window_class == cls) {

   272

			DeleteWindow(w);

   273

			w = _windows;

   274

		} else

   275

			w++;

   276

	}

   277

}

   278

   279

Window *BringWindowToFrontById(WindowClass cls, WindowNumber number)

   280

{

   281

	Window *w = FindWindowById(cls, number);

   282

   283

	if (w != NULL) {

   284

		w->flags4 |= WF_WHITE_BORDER_MASK;

   285

		SetWindowDirty(w);

   286

		w = BringWindowToFront(w);

   287

	}

   288

   289

	return w;

   290

}

   291

   292

static inline bool IsVitalWindow(const Window *w)

   293

{

   294

	WindowClass wc = w->window_class;

   295

	return (wc == WC_MAIN_TOOLBAR || wc == WC_STATUS_BAR || wc == WC_NEWS_WINDOW || wc == WC_SEND_NETWORK_MSG);

   296

}

   297

   298

/** On clicking on a window, make it the frontmost window of all. However

   299

 * there are certain windows that always need to be on-top; these include

   300

 * - Toolbar, Statusbar (always on)

   301

 * - New window, Chatbar (only if open)

   302

 * @param w window that is put into the foreground

   303

 */

   304

Window *BringWindowToFront(Window *w)

   305

{

   306

	Window *v;

   307

	Window temp;

   308

   309

	v = _last_window;

   310

	do {

   311

		if (--v < _windows)

   312

			return w;

   313

	} while (IsVitalWindow(v));

   314

   315

	if (w == v)

   316

		return w;

   317

   318

	assert(w < v);

   319

   320

	temp = *w;

   321

	memmove(w, w + 1, (v - w) * sizeof(Window));

   322

	*v = temp;

   323

   324

	SetWindowDirty(v);

   325

   326

	return v;

   327

}

   328

   329

/** We have run out of windows, so find a suitable candidate for replacement.

   330

 * Keep all important windows intact. These are

   331

 * - Main window (gamefield), Toolbar, Statusbar (always on)

   332

 * - News window, Chatbar (when on)

   333

 * - Any sticked windows since we wanted to keep these

   334

 * @return w pointer to the window that is going to be deleted

   335

 */

   336

static Window *FindDeletableWindow(void)

   337

{

   338

	Window *w;

   339

	for (w = _windows; w < endof(_windows); w++) {

   340

		if (w->window_class != WC_MAIN_WINDOW && !IsVitalWindow(w) && !(w->flags4 & WF_STICKY) )

   341

				return w;

   342

	}

   343

	return NULL;

   344

}

   345

   346

/** A window must be freed, and all are marked as important windows. Ease the

   347

 * restriction a bit by allowing to delete sticky windows. Keep important/vital

   348

 * windows intact (Main window, Toolbar, Statusbar, News Window, Chatbar)

   349

 * @see FindDeletableWindow()

   350

 * @return w Pointer to the window that is being deleted

   351

 */

   352

static Window *ForceFindDeletableWindow(void)

   353

{

   354

	Window *w;

   355

	for (w = _windows;; w++) {

   356

		assert(w < _last_window);

   357

   358

		if (w->window_class != WC_MAIN_WINDOW && !IsVitalWindow(w))

   359

				return w;

   360

	}

   361

}

   362

   363

bool IsWindowOfPrototype(Window *w, const Widget *widget)

   364

{

   365

	return (w->original_widget == widget);

   366

}

   367

   368

/* Copies 'widget' to 'w->widget' to allow for resizable windows */

   369

void AssignWidgetToWindow(Window *w, const Widget *widget)

   370

{

   371

	w->original_widget = widget;

   372

   373

	if (widget != NULL) {

   374

		const Widget *wi = widget;

   375

		uint index = 1;

   376

		while (wi->type != WWT_LAST) {

   377

			wi++;

   378

			index++;

   379

		}

   380

   381

		w->widget = realloc(w->widget, sizeof(Widget) * index);

   382

		memcpy(w->widget, widget, sizeof(Widget) * index);

   383

	} else

   384

		w->widget = NULL;

   385

}

   386

   387

/** Open a new window. If there is no space for a new window, close an open

   388

 * window. Try to avoid stickied windows, but if there is no else, close one of

   389

 * those as well. Then make sure all created windows are below some always-on-top

   390

 * ones. Finally set all variables and call the WE_CREATE event

   391

 * @param x offset in pixels from the left of the screen

   392

 * @param y offset in pixels from the top of the screen

   393

 * @param width width in pixels of the window

   394

 * @param height height in pixels of the window

   395

 * @param *proc @see WindowProc function to call when any messages/updates happen to the window

   396

 * @param cls @see WindowClass class of the window, used for identification and grouping

   397

 * @param *widget @see Widget pointer to the window layout and various elements

   398

 * @return @see Window pointer of the newly created window

   399

 */

   400

Window *AllocateWindow(

   401

							int x, int y, int width, int height,

   402

							WindowProc *proc, WindowClass cls, const Widget *widget)

   403

{

   404

	Window *w = _last_window; // last window keeps track of the highest open window

   405

   406

	// We have run out of windows, close one and use that as the place for our new one

   407

	if (w >= endof(_windows)) {

   408

		w = FindDeletableWindow();

   409

   410

		if (w == NULL) // no window found, force it!

   411

			w = ForceFindDeletableWindow();

   412

   413

		DeleteWindow(w);

   414

		w = _last_window;

   415

	}

   416

   417

	/* XXX - This very strange construction makes sure that the chatbar is always

   418

	 * on top of other windows. Why? It is created as last_window (so, on top).

   419

	 * Any other window will go below toolbar/statusbar/news window, which implicitely

   420

	 * also means it is below the chatbar. Very likely needs heavy improvement

   421

	 * to de-braindeadize */

   422

	if (w != _windows && cls != WC_SEND_NETWORK_MSG) {

   423

		Window *v;

   424

   425

		/* XXX - if not this order (toolbar/statusbar and then news), game would

   426

		 * crash because it will try to copy a negative size for the news-window.

   427

		 * Eg. window was already moved BELOW news (which is below toolbar/statusbar)

   428

		 * and now needs to move below those too. That is a negative move. */

   429

		v = FindWindowById(WC_MAIN_TOOLBAR, 0);

   430

		if (v != NULL) {

   431

			memmove(v+1, v, (byte*)w - (byte*)v);

   432

			w = v;

   433

		}

   434

   435

		v = FindWindowById(WC_STATUS_BAR, 0);

   436

		if (v != NULL) {

   437

			memmove(v+1, v, (byte*)w - (byte*)v);

   438

			w = v;

   439

		}

   440

   441

		v = FindWindowById(WC_NEWS_WINDOW, 0);

   442

		if (v != NULL) {

   443

			memmove(v+1, v, (byte*)w - (byte*)v);

   444

			w = v;

   445

		}

   446

	}

   447

   448

	// Set up window properties

   449

	memset(w, 0, sizeof(Window));

   450

	w->window_class = cls;

   451

	w->flags4 = WF_WHITE_BORDER_MASK; // just opened windows have a white border

   452

	w->caption_color = 0xFF;

   453

	w->left = x;

   454

	w->top = y;

   455

	w->width = width;

   456

	w->height = height;

   457

	w->wndproc = proc;

   458

	AssignWidgetToWindow(w, widget);

   459

	w->resize.width = width;

   460

	w->resize.height = height;

   461

	w->resize.step_width = 1;

   462

	w->resize.step_height = 1;

   463

   464

	_last_window++;

   465

   466

	SetWindowDirty(w);

   467

   468

	CallWindowEventNP(w, WE_CREATE);

   469

   470

	return w;

   471

}

   472

   473

Window *AllocateWindowAutoPlace2(

   474

	WindowClass exist_class,

   475

	WindowNumber exist_num,

   476

	int width,

   477

	int height,

   478

	WindowProc *proc,

   479

	WindowClass cls,

   480

	const Widget *widget)

   481

{

   482

	Window *w;

   483

	int x;

   484

   485

	w = FindWindowById(exist_class, exist_num);

   486

	if (w == NULL || w->left >= (_screen.width-20) || w->left <= -60 || w->top >= (_screen.height-20)) {

   487

		return AllocateWindowAutoPlace(width,height,proc,cls,widget);

   488

	}

   489

   490

	x = w->left;

   491

	if (x > _screen.width - width)

   492

		x = (_screen.width - width) - 20;

   493

   494

	return AllocateWindow(x+10,w->top+10,width,height,proc,cls,widget);

   495

}

   496

   497

   498

typedef struct SizeRect {

   499

	int left,top,width,height;

   500

} SizeRect;

   501

   502

   503

static SizeRect _awap_r;

   504

   505

static bool IsGoodAutoPlace1(int left, int top)

   506