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ui_main.c
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ui_main.c
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/**\file ui_main.c
*\section License
* License: GPL
* Online License Link: http://www.gnu.org/licenses/gpl.html
*
*\author Copyright © 2003-2011 Jaakko Keränen <jaakko.keranen@iki.fi>
*\author Copyright © 2005-2011 Daniel Swanson <danij@dengine.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/**
* Graphical User Interface
*
* Has ties to the console routines.
*/
// HEADER FILES ------------------------------------------------------------
#include <math.h>
#include "de_base.h"
#include "de_console.h"
#include "de_refresh.h"
#include "de_system.h"
#include "de_graphics.h"
#include "de_ui.h"
#include "de_misc.h"
#include "image.h"
#include "texturecontent.h"
#include "rend_console.h" // \todo Move Rend_ConsoleUpdateTitle somewhere more suitable.
// MACROS ------------------------------------------------------------------
#define SCROLL_TIME 3
#define UICURSORWIDTH 32
#define UICURSORHEIGHT 64
enum {
UITEX_MOUSE,
UITEX_CORNER,
UITEX_FILL,
UITEX_SHADE,
UITEX_HINT,
UITEX_LOGO,
UITEX_BACKGROUND,
NUM_UITEXTURES
};
// TYPES -------------------------------------------------------------------
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
D_CMD(UIColor);
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
static int listItemHeight(uidata_list_t* listdata);
static int listButtonHeight(ui_object_t* ob);
static int listThumbPos(ui_object_t* ob);
static void strCpyLen(char* dest, const char* src, int maxWidth);
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
extern int glMaxTexSize;
extern int gameDrawHUD;
extern boolean stopTime;
extern boolean tickUI;
extern boolean drawGame;
// PUBLIC DATA DEFINITIONS -------------------------------------------------
// PRIVATE DATA DEFINITIONS ------------------------------------------------
static boolean uiActive = false; /// The user interface is active.
static boolean uiShowMouse = true;
static ui_page_t* uiCurrentPage = 0; /// Currently active page.
static int uiFontHgt; /// Height of the UI font.
static DGLuint uiTextures[NUM_UITEXTURES]; /// Cursor texture.
static int uiCX, uiCY; /// Cursor position.
static int uiRestCX, uiRestCY;
static uint uiRestStart; /// Start time of current resting.
static uint uiRestTime = TICSPERSEC / 2; /// 500 ms.
static int uiRestOffsetLimit = 2;
static int uiMoved; /// True if the mouse has been moved.
static float uiAlpha = 1.0; /// Main alpha for the entire UI.
static float uiTargetAlpha = 1.0; // Target alpha for the entire UI.
/// The game view should be drawn while the UI active.
static boolean uiDrawGame = false;
static float uiCursorWidthMul = 0.75;
static float uiCursorHeightMul = 0.75;
/// Modify these colors to change the look of the UI.
static ui_color_t ui_colors[NUM_UI_COLORS] = {
/* UIC_TEXT */ { .85f, .87f, 1 },
/* UIC_TITLE */ { 1, 1, 1 },
/* UIC_SHADOW */ { 0, 0, 0 },
/* UIC_BG_LIGHT */ { .18f, .18f, .22f },
/* UIC_BG_MEDIUM */ { .4f, .4f, .52f },
/* UIC_BG_DARK */ { .28f, .28f, .33f },
/* UIC_BRD_HI */ { 1, 1, 1 },
/* UIC_BRD_MED */ { 0, 0, 0 },
/* UIC_BRD_LOW */ { .25f, .25f, .55f },
/* UIC_HELP */ { .4f, .4f, .52f }
};
static boolean allowEscape; /// Allow the user to exit a ui page using the escape key.
// CODE --------------------------------------------------------------------
void UI_Register(void)
{
// Cvars
C_VAR_FLOAT("ui-cursor-width", &uiCursorWidthMul, 0, 0.5f, 1.5f);
C_VAR_FLOAT("ui-cursor-height", &uiCursorHeightMul, 0, 0.5f, 1.5f);
// Ccmds
C_CMD_FLAGS("uicolor", "sfff", UIColor, CMDF_NO_DEDICATED);
CP_Register();
}
void UI_PageInit(boolean halttime, boolean tckui, boolean tckframe, boolean drwgame, boolean noescape)
{
if(uiActive)
return;
uiActive = true;
B_ActivateContext(B_ContextByName(UI_BINDING_CONTEXT_NAME), true);
// Restore full alpha.
uiAlpha = uiTargetAlpha = 1.0;
// Adjust the engine state
stopTime = halttime;
tickUI = tckui;
tickFrame = tckframe;
uiDrawGame = drawGame = drwgame;
// Advise the game not to draw any HUD displays
gameDrawHUD = false;
I_SetUIMouseMode(true);
// Change font.
FR_SetFont(glFontVariable[GLFS_NORMAL]);
uiFontHgt = FR_TextFragmentHeight("W");
// Should the mouse cursor be visible?
uiShowMouse = !ArgExists("-nomouse");
// Allow use of the escape key to exit the ui?
allowEscape = !noescape;
// Init cursor to the center of the screen.
uiCX = theWindow->width / 2;
uiCY = theWindow->height / 2;
uiMoved = false;
}
void UI_End(void)
{
ddevent_t rel;
if(!uiActive)
return;
uiActive = false;
B_ActivateContext(B_ContextByName(UI_BINDING_CONTEXT_NAME), false);
// Restore full alpha.
uiAlpha = uiTargetAlpha = 1.0;
FR_SetFont(glFontFixed);
// Update the secondary title and the game status.
Rend_ConsoleUpdateTitle();
// Restore the engine state
tickFrame = true;
stopTime = false;
tickUI = false;
drawGame = true;
// Advise the game it can now draw HUD displays again.
gameDrawHUD = true;
I_SetUIMouseMode(false);
// Inform everybody that the shift key was (possibly) released while
// the UI was eating all the input events.
if(!shiftDown)
{
rel.device = IDEV_KEYBOARD;
rel.type = E_TOGGLE;
rel.toggle.state = ETOG_UP;
rel.toggle.id = DDKEY_RSHIFT;
DD_PostEvent(&rel);
}
}
boolean UI_IsActive(void)
{
return uiActive;
}
int UI_FontHeight(void)
{
return uiFontHgt;
}
ui_color_t* UI_Color(uint id)
{
if(id >= NUM_UI_COLORS)
return NULL;
return &ui_colors[id];
}
void UI_SetAlpha(float alpha)
{
// The UI's alpha will start moving towards this target value.
uiTargetAlpha = alpha;
}
float UI_Alpha(void)
{
return uiAlpha;
}
ui_page_t* UI_CurrentPage(void)
{
if(uiActive)
return uiCurrentPage;
return NULL;
}
void UI_LoadTextures(void)
{
const char* picNames[NUM_UITEXTURES] = {
"Mouse",
"BoxCorner",
"BoxFill",
"BoxShade",
"Hint",
"Logo",
"Background",
};
int i;
for(i = 0; i < NUM_UITEXTURES; ++i)
{
image_t image;
if(uiTextures[i])
continue;
if(GL_LoadExtTexture(&image, picNames[i], (i == UITEX_BACKGROUND? LGM_GRAYSCALE : LGM_NORMAL)))
{ // Loaded successfully and converted accordingly.
// Upload the image to GL.
uiTextures[i] = GL_NewTextureWithParams2(
( image.pixelSize == 2 ? DGL_LUMINANCE_PLUS_A8 :
image.pixelSize == 3 ? DGL_RGB :
image.pixelSize == 4 ? DGL_RGBA : DGL_LUMINANCE ),
image.width, image.height, image.pixels,
TXCF_NO_COMPRESSION, 0, GL_LINEAR, GL_LINEAR,
0 /*no anisotropy*/, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE);
GL_DestroyImagePixels(&image);
}
else
uiTextures[i] = 0;
}
}
void UI_ClearTextures(void)
{
glDeleteTextures(NUM_UITEXTURES, (const GLuint*) uiTextures);
memset(uiTextures, 0, sizeof(uiTextures));
}
void UI_DefaultFocus(ui_page_t* page)
{
ui_object_t* deffocus = NULL;
uint i;
for(i = 0; i < page->count; ++i)
{
page->_objects[i].flags &= ~UIF_FOCUS;
if(page->_objects[i].flags & UIF_DEFAULT)
deffocus = page->_objects + i;
}
if(deffocus)
{
page->focus = deffocus - page->_objects;
deffocus->flags |= UIF_FOCUS;
return;
}
// Find an object for focus.
for(i = 0; i < page->count; ++i)
{
if(!(page->_objects[i].flags & UIF_NO_FOCUS))
{
// Set default focus.
page->focus = i;
page->_objects[i].flags |= UIF_FOCUS;
break;
}
}
}
void UI_InitPage(ui_page_t* page, ui_object_t* objects)
{
ui_object_t meta;
uint i;
memset(&meta, 0, sizeof(meta));
memset(page, 0, sizeof(*page));
page->_objects = objects;
page->capture = -1; /// No capture.
page->focus = -1;
page->responder = UIPage_Responder;
page->drawer = UIPage_Drawer;
page->flags.showBackground = true; /// Draw background by default.
page->ticker = UIPage_Ticker;
page->count = UI_CountObjects(objects);
for(i = 0; i < page->count; ++i)
{
if(objects[i].type == UI_TEXT || objects[i].type == UI_BOX ||
objects[i].type == UI_META)
{
objects[i].flags |= UIF_NO_FOCUS;
}
// Reset timer.
objects[i].timer = 0;
}
UI_DefaultFocus(page);
// Meta effects.
for(i = 0, meta.type = 0; i < page->count; ++i)
{
if(!meta.type && objects[i].type != UI_META)
continue;
if(objects[i].type == UI_META)
{
// This will be the meta for now.
memcpy(&meta, objects + i, sizeof(meta));
// Neutralize the actual object.
objects[i].group = UIG_NONE;
objects[i].flags |= UIF_HIDDEN;
objects[i].relx = objects[i].rely = 0;
objects[i].relw = objects[i].relh = 0;
continue;
}
// Apply the meta.
if(meta.group != UIG_NONE)
objects[i].group = meta.group;
objects[i].relx += meta.relx;
objects[i].rely += meta.rely;
objects[i].relw += meta.relw;
objects[i].relh += meta.relh;
}
}
int UI_AvailableWidth(void)
{
return theWindow->width - UI_BORDER * 4;
}
int UI_AvailableHeight(void)
{
return theWindow->height - UI_BORDER * 4;
}
int UI_ScreenX(int relx)
{
return UI_BORDER * 2 + ((relx / UI_WIDTH) * UI_AvailableWidth());
}
int UI_ScreenY(int rely)
{
return UI_BORDER * 2 + ((rely / UI_HEIGHT) * UI_AvailableHeight());
}
int UI_ScreenW(int relw)
{
return (relw / UI_WIDTH) * UI_AvailableWidth();
}
int UI_ScreenH(int relh)
{
return (relh / UI_HEIGHT) * UI_AvailableHeight();
}
void UI_SetPage(ui_page_t* page)
{
ui_object_t* ob;
uint i;
uiCurrentPage = page;
if(!page)
return;
// Init objects.
for(i = 0, ob = page->_objects; i < page->count; ++i, ob++)
{
// Calculate real coordinates.
ob->x = UI_ScreenX(ob->relx);
ob->w = UI_ScreenW(ob->relw);
ob->y = UI_ScreenY(ob->rely);
ob->h = UI_ScreenH(ob->relh);
// Update objects on page
if(ob->type == UI_EDIT)
{
// Update edit box text.
memset(ob->text, 0, sizeof(ob->text));
strncpy(ob->text, ((uidata_edit_t*) ob->data)->ptr, 255);
}
else if(ob->type == UI_BUTTON2)
{
// Stay-down button state.
if(*(char*) ob->data)
ob->flags |= UIF_ACTIVE;
else
ob->flags &= ~UIF_ACTIVE;
}
else if(ob->type == UI_BUTTON2EX)
{
// Stay-down button state, with extended data.
if(*(char*) ((uidata_button_t*)ob->data)->data)
ob->flags |= UIF_ACTIVE;
else
ob->flags &= ~UIF_ACTIVE;
}
else if(ob->type == UI_LIST)
{
// List box number of visible items.
uidata_list_t* dat = ob->data;
dat->numvis = (ob->h - 2 * UI_BORDER) / listItemHeight(dat);
if(dat->selection >= 0)
{
if(dat->selection < dat->first)
dat->first = dat->selection;
if(dat->selection > dat->first + dat->numvis - 1)
dat->first = dat->selection - dat->numvis + 1;
}
UI_InitColumns(ob);
}
}
// The mouse has not yet been moved on this page.
uiMoved = false;
}
int UI_Responder(ddevent_t* ev)
{
if(!uiActive)
return false;
if(!uiCurrentPage)
return false;
if(IS_MOUSE_MOTION(ev))
{
uiMoved = true;
if(ev->axis.id == 0) // xaxis.
{
uiCX += ev->axis.pos;
if(uiCX < 0)
uiCX = 0;
if(uiCX >= theWindow->width)
uiCX = theWindow->width - 1;
}
else if(ev->axis.id == 1) // yaxis.
{
uiCY += ev->axis.pos;
if(uiCY < 0)
uiCY = 0;
if(uiCY >= theWindow->height)
uiCY = theWindow->height - 1;
}
}
// Call the page's responder.
uiCurrentPage->responder(uiCurrentPage, ev);
// If the UI is active, all events are eaten by it.
return true;
}
void UI_Ticker(timespan_t time)
{
#define UIALPHA_FADE_STEP .07
static trigger_t fixed = { 1 / 35.0, 0 };
float diff = 0;
if(!uiActive)
return;
if(!uiCurrentPage)
return;
if(!M_RunTrigger(&fixed, time))
return;
// Move towards the target alpha level for the entire UI.
diff = uiTargetAlpha - uiAlpha;
if(fabs(diff) > UIALPHA_FADE_STEP)
{
uiAlpha += UIALPHA_FADE_STEP * (diff > 0? 1 : -1);
}
else
{
uiAlpha = uiTargetAlpha;
}
if(!uiDrawGame)
{
// By default, the game is not visible, but since the alpha is not
// fully opaque, it must be shown anyway.
drawGame = (uiAlpha < 1.0);
}
// Call the active page's ticker.
uiCurrentPage->ticker(uiCurrentPage);
#undef UIALPHA_FADE_STEP
}
void UI_Drawer(void)
{
if(!uiActive || !uiCurrentPage)
return;
// Go into screen projection mode.
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, theWindow->width, theWindow->height, 0, -1, 1);
// Call the active page's drawer.
uiCurrentPage->drawer(uiCurrentPage);
// Draw mouse cursor?
if(uiShowMouse)
{
float width, height, scale;
if(theWindow->width >= theWindow->height)
scale = (theWindow->width / UI_WIDTH) * (theWindow->height / (float) theWindow->width);
else
scale = (theWindow->height / UI_HEIGHT) * (theWindow->width / (float) theWindow->height);
width = UICURSORWIDTH * scale * uiCursorWidthMul;
height = UICURSORHEIGHT * scale * uiCursorHeightMul;
UI_DrawMouse(uiCX - 1, uiCY - 1, width, height);
}
// Restore the original matrices.
glMatrixMode(GL_PROJECTION);
glPopMatrix();
}
int UI_CountObjects(ui_object_t* list)
{
int count;
for(count = 0; list->type != UI_NONE; list++, count++);
return count;
}
void UI_FlagGroup(ui_object_t* list, int group, int flags, int set)
{
for(; list->type; list++)
{
if(list->group != group)
continue;
switch(set)
{
case UIFG_CLEAR:
list->flags &= ~flags;
break;
case UIFG_SET:
list->flags |= flags;
break;
case UIFG_XOR:
list->flags ^= flags;
break;
default:
Con_Error("UI_FlagGroup: Unknown flag bit op %i\n", set);
break;
}
}
}
ui_object_t* UI_FindObject(ui_object_t* list, int group, int flags)
{
for(; list->type; list++)
if(list->group == group && (list->flags & flags) == flags)
return list;
return NULL;
}
void UI_MouseFocus(void)
{
ui_object_t* ob;
uint i;
for(i = 0, ob = uiCurrentPage->_objects; i < uiCurrentPage->count; ++i, ob++)
if(!(ob->flags & UIF_NO_FOCUS) && UI_MouseInside(ob))
{
UI_Focus(ob);
break;
}
}
void UI_Focus(ui_object_t* ob)
{
uint i;
if(!ob)
Con_Error("UI_Focus: Tried to set focus on NULL.\n");
// Can the object receive focus?
if(ob->flags & UIF_NO_FOCUS)
return;
uiCurrentPage->focus = ob - uiCurrentPage->_objects;
for(i = 0; i < uiCurrentPage->count; ++i)
{
if(i == uiCurrentPage->focus)
uiCurrentPage->_objects[i].flags |= UIF_FOCUS;
else
uiCurrentPage->_objects[i].flags &= ~UIF_FOCUS;
}
}
void UI_Capture(ui_object_t* ob)
{
if(!ob)
{
// End capture.
uiCurrentPage->capture = -1;
return;
}
if(!ob->responder)
return;
// Set the capture object.
uiCurrentPage->capture = ob - uiCurrentPage->_objects;
// Set focus.
UI_Focus(ob);
}
//---------------------------------------------------------------------------
// Default Callback Functions
//---------------------------------------------------------------------------
int UIPage_Responder(ui_page_t* page, ddevent_t* ev)
{
ui_object_t* ob;
ddevent_t translated;
uint i;
// Translate mouse wheel?
if(IS_MOUSE_DOWN(ev))
{
if(ev->toggle.id == DD_MWHEEL_UP || ev->toggle.id == DD_MWHEEL_DOWN)
{
UI_MouseFocus();
translated.device = IDEV_KEYBOARD;
translated.type = E_TOGGLE;
translated.toggle.state = ETOG_DOWN;
translated.toggle.id = (ev->toggle.id == DD_MWHEEL_UP ? DDKEY_UPARROW : DDKEY_DOWNARROW);
ev = &translated;
}
}
if(page->capture >= 0)
{
// There is an object that has captured input.
ob = page->_objects + page->capture;
// Capture objects must have a responder!
// This object gets to decide what happens.
return ob->responder(ob, ev);
}
// Check for Esc key.
if(IS_KEY_PRESS(ev))
{
// We won't accept repeats with Esc.
if(ev->toggle.id == DDKEY_ESCAPE && ev->toggle.state == ETOG_DOWN &&
allowEscape)
{
UI_SetPage(page->previous);
// If we have no more a page, disactive UI.
if(!uiCurrentPage)
UI_End();
return true; // The event was used.
}
// Tab is used for navigation.
if(ev->toggle.id == DDKEY_TAB)
{
uint k;
// Remove the focus flag from the current focus object.
page->_objects[page->focus].flags &= ~UIF_FOCUS;
// Move focus.
k = 0;
do
{
page->focus += shiftDown ? -1 : 1;
// Check range.
if(page->focus < 0)
page->focus = page->count - 1;
else if((unsigned) page->focus >= page->count)
page->focus = 0;
} while(++k < page->count && (page->_objects[page->focus].flags & (UIF_DISABLED | UIF_NO_FOCUS | UIF_HIDDEN)));
// Flag the new focus object.
page->_objects[page->focus].flags |= UIF_FOCUS;
return true; // The event was used.
}
}
// Call responders until someone uses the event.
// We start with the focus object.
for(i = 0; i < page->count; ++i)
{
int k;
// Determine the index of the object to process.
k = page->focus + i;
// Wrap around.
if(k < 0)
k += page->count;
if((unsigned)k >= page->count)
k -= page->count;
ob = page->_objects + k;
// Check the flags of this object.
if((ob->flags & UIF_HIDDEN) || (ob->flags & UIF_DISABLED))
continue; // These flags prevent response.
if(!ob->responder)
continue; // Must have a responder.
if(ob->responder(ob, ev))
{ // The event was used by this object.
UI_Focus(ob); // Move focus to it.
return true;
}
}
if(uiTargetAlpha < 1.0 && IS_MOUSE_DOWN(ev))
{
// When the UI the faded, an unhandled click brings back the UI.
UI_DefaultFocus(page);
}
// We didn't use the event.
return false;
}
void UIPage_Ticker(ui_page_t* page)
{
boolean fadedAway = false;
ui_object_t* ob;
uint i;
// Call the ticker of each object, unless they're hidden or paused.
for(i = 0, ob = page->_objects; i < page->count; ++i, ob++)
{
if((ob->flags & UIF_PAUSED) || (ob->flags & UIF_HIDDEN))
continue;
// Fadeaway objects cause the UI to fade away when the mouse is over the control.
if((ob->flags & UIF_FOCUS) && (ob->flags & UIF_FADE_AWAY))
{
UI_SetAlpha(0);
fadedAway = true;
}
if(ob->ticker)
ob->ticker(ob);
// Advance object timer.
ob->timer++;
}
if(!fadedAway)
{
UI_SetAlpha(1.0);
}
page->_timer++;
// Check mouse resting.
if(abs(uiCX - uiRestCX) > uiRestOffsetLimit || abs(uiCY - uiRestCY) > uiRestOffsetLimit)
{
// Restart resting period.
uiRestCX = uiCX;
uiRestCY = uiCY;
uiRestStart = page->_timer;
}
}
void UIPage_Drawer(ui_page_t* page)
{
ui_object_t* ob;
ui_color_t focuscol;
float t;
uint i;
// Draw background?
if(page->flags.showBackground)
UI_DrawDDBackground(0, 0, theWindow->width, theWindow->height, uiAlpha);
// Draw each object, unless they're hidden.
for(i = 0, ob = page->_objects; i < page->count; ++i, ob++)
{
float currentUIAlpha = uiAlpha;
if((ob->flags & UIF_HIDDEN) || !ob->drawer)
continue;
if(ob->flags & UIF_FADE_AWAY)
{
if(ob->flags & UIF_FOCUS)
{
// The focused object must not fade away completely.
uiAlpha = MAX_OF(currentUIAlpha, 0.75);
}
else
{
// Other fadeaway objects remain slightly visible.
uiAlpha = MAX_OF(currentUIAlpha, 0.333);
}
}
if(ob->flags & UIF_NEVER_FADE)
{
uiAlpha = 1.0;
}
// Draw the object itself.
ob->drawer(ob);
if((ob->flags & UIF_FOCUS) &&
(ob->type != UI_EDIT || !(ob->flags & UIF_ACTIVE)))
{
t = (1 + sin(page->_timer / (float) TICSPERSEC * 1.5f * PI)) / 2;
UI_MixColors(UI_Color(UIC_BRD_LOW), UI_Color(UIC_BRD_HI), &focuscol, t);
glEnable(GL_TEXTURE_2D);
UI_Shade(ob->x, ob->y, ob->w, ob->h, UI_BORDER, UI_Color(UIC_BRD_LOW), UI_Color(UIC_BRD_LOW), .2f + t * .3f, -1);
GL_BlendMode(BM_ADD);
// Draw a focus rectangle.
UI_DrawRect(ob->x - 1, ob->y - 1, ob->w + 2, ob->h + 2, UI_BORDER, &focuscol, 1);
GL_BlendMode(BM_NORMAL);
glDisable(GL_TEXTURE_2D);
}
// Restore the correct UI alpha.
uiAlpha = currentUIAlpha;
}
}
void UIFrame_Drawer(ui_object_t* ob)
{
int b = UI_BORDER;
glEnable(GL_TEXTURE_2D);
UI_GradientEx(ob->x, ob->y, ob->w, ob->h, b, UI_Color(UIC_BG_MEDIUM), 0, .6f, 0);
UI_DrawRect(ob->x, ob->y, ob->w, ob->h, b, UI_Color(UIC_BRD_HI), 1);
glDisable(GL_TEXTURE_2D);
}
void UIText_Drawer(ui_object_t* ob)
{
glEnable(GL_TEXTURE_2D);
FR_SetFont(glFontVariable[GLFS_NORMAL]);
FR_LoadDefaultAttrib();
FR_SetShadowOffset(UI_SHADOW_OFFSET, UI_SHADOW_OFFSET);
FR_SetShadowStrength(UI_SHADOW_STRENGTH);
UI_TextOutEx2(ob->text, ob->x, ob->y + ob->h / 2, UI_Color(UIC_TEXT), ob->flags & UIF_DISABLED ? .2f : 1, DTF_ALIGN_LEFT|DTF_ONLY_SHADOW);
glDisable(GL_TEXTURE_2D);
}
void UIText_BrightDrawer(ui_object_t* ob)
{
glEnable(GL_TEXTURE_2D);
FR_SetFont(glFontVariable[GLFS_NORMAL]);
FR_LoadDefaultAttrib();
FR_SetShadowOffset(UI_SHADOW_OFFSET, UI_SHADOW_OFFSET);
FR_SetShadowStrength(UI_SHADOW_STRENGTH);
UI_TextOutEx2(ob->text, ob->x, ob->y + ob->h / 2, UI_Color(UIC_TITLE), ob->flags & UIF_DISABLED ? .2f : 1, DTF_ALIGN_LEFT|DTF_ONLY_SHADOW);
glDisable(GL_TEXTURE_2D);
}
int UIButton_Responder(ui_object_t* ob, ddevent_t* ev)
{
if(ob->flags & UIF_CLICKED)
{
if((ev->device == IDEV_KEYBOARD || ev->device == IDEV_MOUSE) && IS_TOGGLE_UP(ev))
{
UI_Capture(0);
ob->flags &= ~UIF_CLICKED;
if(UI_MouseInside(ob) || ev->device == IDEV_KEYBOARD)
{
// Activate?
if(ob->action)
ob->action(ob);
}
return true;
}
}
else if(IS_TOGGLE_DOWN(ev) &&
((ev->device == IDEV_MOUSE && UI_MouseInside(ob)) ||
(ev->device == IDEV_KEYBOARD && IS_ACTKEY(ev->toggle.id))))
{
if(ob->type == UI_BUTTON)
{
// Capture input.
UI_Capture(ob);
ob->flags |= UIF_CLICKED;
}
else
{
// Stay-down buttons change state.
ob->flags ^= UIF_ACTIVE;
if(ob->data)
{
void* data;
if(ob->type == UI_BUTTON2EX)
data = ((uidata_button_t*) ob->data)->data;
else
data = ob->data;
*(char*) data = (ob->flags & UIF_ACTIVE) != 0;
}
// Call the action function.
if(ob->action)
ob->action(ob);
}
ob->timer = 0;
return true;
}
return false;
}
void UIButton_Drawer(ui_object_t* ob)
{
int dis = (ob->flags & UIF_DISABLED) != 0;
int act = (ob->flags & UIF_ACTIVE) != 0;
int click = (ob->flags & UIF_CLICKED) != 0;
boolean down = act || click;
ui_color_t back;
float t = ob->timer / 15.0f;
float alpha = (dis ? .2f : 1);
const char* text;
if(ob->type == UI_BUTTON2EX)
{
uidata_button_t* data = ob->data;
if(down)
text = data->yes;
else
text = data->no;
}
else
{
text = ob->text;
}
// Mix the background color.
if(!click || t > .5f)
t = .5f;
if(act && t > .1f)
t = .1f;
glEnable(GL_TEXTURE_2D);
UI_MixColors(UI_Color(UIC_TEXT), UI_Color(UIC_SHADOW), &back, t);
UI_GradientEx(ob->x, ob->y, ob->w, ob->h, UI_BUTTON_BORDER, &back, 0, alpha, 0);
UI_Shade(ob->x, ob->y, ob->w, ob->h, UI_BUTTON_BORDER * (down ? -1 : 1), UI_Color(UIC_BRD_HI), UI_Color(UIC_BRD_LOW), alpha / 3, -1);