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doom3-bfg/neo/ui/DeviceContext.cpp
Brian Harris 5016f605b8 Initial commit
2012-11-26 12:58:24 -06:00

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/*
===========================================================================
Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
Doom 3 BFG Edition Source Code 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 3 of the License, or
(at your option) any later version.
Doom 3 BFG Edition Source Code 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 Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#pragma hdrstop
#include "../idlib/precompiled.h"
#include "DeviceContext.h"
#include "../renderer/GuiModel.h"
extern idCVar in_useJoystick;
// bypass rendersystem to directly work on guiModel
extern idGuiModel * tr_guiModel;
idVec4 idDeviceContext::colorPurple;
idVec4 idDeviceContext::colorOrange;
idVec4 idDeviceContext::colorYellow;
idVec4 idDeviceContext::colorGreen;
idVec4 idDeviceContext::colorBlue;
idVec4 idDeviceContext::colorRed;
idVec4 idDeviceContext::colorBlack;
idVec4 idDeviceContext::colorWhite;
idVec4 idDeviceContext::colorNone;
void idDeviceContext::Init() {
xScale = 1.0f;
yScale = 1.0f;
xOffset = 0.0f;
yOffset = 0.0f;
whiteImage = declManager->FindMaterial("guis/assets/white.tga");
whiteImage->SetSort( SS_GUI );
activeFont = renderSystem->RegisterFont( "" );
colorPurple = idVec4(1, 0, 1, 1);
colorOrange = idVec4(1, 1, 0, 1);
colorYellow = idVec4(0, 1, 1, 1);
colorGreen = idVec4(0, 1, 0, 1);
colorBlue = idVec4(0, 0, 1, 1);
colorRed = idVec4(1, 0, 0, 1);
colorWhite = idVec4(1, 1, 1, 1);
colorBlack = idVec4(0, 0, 0, 1);
colorNone = idVec4(0, 0, 0, 0);
cursorImages[CURSOR_ARROW] = declManager->FindMaterial("ui/assets/guicursor_arrow.tga");
cursorImages[CURSOR_HAND] = declManager->FindMaterial("ui/assets/guicursor_hand.tga");
cursorImages[CURSOR_HAND_JOY1] = declManager->FindMaterial("ui/assets/guicursor_hand_cross.tga");
cursorImages[CURSOR_HAND_JOY2] = declManager->FindMaterial("ui/assets/guicursor_hand_circle.tga");
cursorImages[CURSOR_HAND_JOY3] = declManager->FindMaterial("ui/assets/guicursor_hand_square.tga");
cursorImages[CURSOR_HAND_JOY4] = declManager->FindMaterial("ui/assets/guicursor_hand_triangle.tga");
cursorImages[CURSOR_HAND_JOY1] = declManager->FindMaterial("ui/assets/guicursor_hand_a.tga");
cursorImages[CURSOR_HAND_JOY2] = declManager->FindMaterial("ui/assets/guicursor_hand_b.tga");
cursorImages[CURSOR_HAND_JOY3] = declManager->FindMaterial("ui/assets/guicursor_hand_x.tga");
cursorImages[CURSOR_HAND_JOY4] = declManager->FindMaterial("ui/assets/guicursor_hand_y.tga");
scrollBarImages[SCROLLBAR_HBACK] = declManager->FindMaterial("ui/assets/scrollbarh.tga");
scrollBarImages[SCROLLBAR_VBACK] = declManager->FindMaterial("ui/assets/scrollbarv.tga");
scrollBarImages[SCROLLBAR_THUMB] = declManager->FindMaterial("ui/assets/scrollbar_thumb.tga");
scrollBarImages[SCROLLBAR_RIGHT] = declManager->FindMaterial("ui/assets/scrollbar_right.tga");
scrollBarImages[SCROLLBAR_LEFT] = declManager->FindMaterial("ui/assets/scrollbar_left.tga");
scrollBarImages[SCROLLBAR_UP] = declManager->FindMaterial("ui/assets/scrollbar_up.tga");
scrollBarImages[SCROLLBAR_DOWN] = declManager->FindMaterial("ui/assets/scrollbar_down.tga");
cursorImages[CURSOR_ARROW]->SetSort( SS_GUI );
cursorImages[CURSOR_HAND]->SetSort( SS_GUI );
scrollBarImages[SCROLLBAR_HBACK]->SetSort( SS_GUI );
scrollBarImages[SCROLLBAR_VBACK]->SetSort( SS_GUI );
scrollBarImages[SCROLLBAR_THUMB]->SetSort( SS_GUI );
scrollBarImages[SCROLLBAR_RIGHT]->SetSort( SS_GUI );
scrollBarImages[SCROLLBAR_LEFT]->SetSort( SS_GUI );
scrollBarImages[SCROLLBAR_UP]->SetSort( SS_GUI );
scrollBarImages[SCROLLBAR_DOWN]->SetSort( SS_GUI );
cursor = CURSOR_ARROW;
enableClipping = true;
overStrikeMode = true;
mat.Identity();
matIsIdentity = true;
origin.Zero();
initialized = true;
}
void idDeviceContext::Shutdown() {
clipRects.Clear();
Clear();
}
void idDeviceContext::Clear() {
initialized = false;
}
idDeviceContext::idDeviceContext() {
Clear();
}
void idDeviceContext::SetTransformInfo(const idVec3 &org, const idMat3 &m) {
origin = org;
mat = m;
matIsIdentity = mat.IsIdentity();
}
//
// added method
void idDeviceContext::GetTransformInfo(idVec3& org, idMat3& m )
{
m = mat;
org = origin;
}
//
void idDeviceContext::EnableClipping(bool b) {
enableClipping = b;
};
void idDeviceContext::PopClipRect() {
if (clipRects.Num()) {
clipRects.RemoveIndex(clipRects.Num()-1);
}
}
void idDeviceContext::PushClipRect(idRectangle r) {
clipRects.Append(r);
}
bool idDeviceContext::ClippedCoords(float *x, float *y, float *w, float *h, float *s1, float *t1, float *s2, float *t2) {
if ( enableClipping == false || clipRects.Num() == 0 ) {
return false;
}
int c = clipRects.Num();
while( --c > 0 ) {
idRectangle *clipRect = &clipRects[c];
float ox = *x;
float oy = *y;
float ow = *w;
float oh = *h;
if ( ow <= 0.0f || oh <= 0.0f ) {
break;
}
if (*x < clipRect->x) {
*w -= clipRect->x - *x;
*x = clipRect->x;
} else if (*x > clipRect->x + clipRect->w) {
*x = *w = *y = *h = 0;
}
if (*y < clipRect->y) {
*h -= clipRect->y - *y;
*y = clipRect->y;
} else if (*y > clipRect->y + clipRect->h) {
*x = *w = *y = *h = 0;
}
if (*w > clipRect->w) {
*w = clipRect->w - *x + clipRect->x;
} else if (*x + *w > clipRect->x + clipRect->w) {
*w = clipRect->Right() - *x;
}
if (*h > clipRect->h) {
*h = clipRect->h - *y + clipRect->y;
} else if (*y + *h > clipRect->y + clipRect->h) {
*h = clipRect->Bottom() - *y;
}
if ( s1 && s2 && t1 && t2 && ow > 0.0f ) {
float ns1, ns2, nt1, nt2;
// upper left
float u = ( *x - ox ) / ow;
ns1 = *s1 * ( 1.0f - u ) + *s2 * ( u );
// upper right
u = ( *x + *w - ox ) / ow;
ns2 = *s1 * ( 1.0f - u ) + *s2 * ( u );
// lower left
u = ( *y - oy ) / oh;
nt1 = *t1 * ( 1.0f - u ) + *t2 * ( u );
// lower right
u = ( *y + *h - oy ) / oh;
nt2 = *t1 * ( 1.0f - u ) + *t2 * ( u );
// set values
*s1 = ns1;
*s2 = ns2;
*t1 = nt1;
*t2 = nt2;
}
}
return (*w == 0 || *h == 0) ? true : false;
}
/*
=============
DrawStretchPic
=============
*/
void idDeviceContext::DrawWinding( idWinding & w, const idMaterial * mat ) {
idPlane p;
p.Normal().Set( 1.0f, 0.0f, 0.0f );
p.SetDist( 0.0f );
w.ClipInPlace( p );
p.Normal().Set( -1.0f, 0.0f, 0.0f );
p.SetDist( -SCREEN_WIDTH );
w.ClipInPlace( p );
p.Normal().Set( 0.0f, 1.0f, 0.0f );
p.SetDist( 0.0f );
w.ClipInPlace( p );
p.Normal().Set( 0.0f, -1.0f, 0.0f );
p.SetDist( -SCREEN_HEIGHT );
w.ClipInPlace( p );
if ( w.GetNumPoints() < 3 ) {
return;
}
int numIndexes = 0;
triIndex_t tempIndexes[(MAX_POINTS_ON_WINDING-2)*3];
for ( int j = 2; j < w.GetNumPoints(); j++ ) {
tempIndexes[numIndexes++] = 0;
tempIndexes[numIndexes++] = j - 1;
tempIndexes[numIndexes++] = j;
}
assert( numIndexes == ( w.GetNumPoints() - 2 ) * 3 );
idDrawVert * verts = renderSystem->AllocTris( w.GetNumPoints(), tempIndexes, numIndexes, mat );
if ( verts == NULL ) {
return;
}
uint32 currentColor = renderSystem->GetColor();
for ( int j = 0 ; j < w.GetNumPoints() ; j++ ) {
verts[j].xyz.x = xOffset + w[j].x * xScale;
verts[j].xyz.y = yOffset + w[j].y * yScale;
verts[j].xyz.z = w[j].z;
verts[j].SetTexCoord( w[j].s, w[j].t );
verts[j].SetColor( currentColor );
verts[j].ClearColor2();
verts[j].SetNormal( 0.0f, 0.0f, 1.0f );
verts[j].SetTangent( 1.0f, 0.0f, 0.0f );
verts[j].SetBiTangent( 0.0f, 1.0f, 0.0f );
}
}
void idDeviceContext::DrawStretchPic(float x, float y, float w, float h, float s1, float t1, float s2, float t2, const idMaterial *shader) {
if ( matIsIdentity ) {
renderSystem->DrawStretchPic( xOffset + x * xScale, yOffset + y * yScale, w * xScale, h * yScale, s1, t1, s2, t2, shader );
return;
}
idFixedWinding winding;
winding.AddPoint( idVec5( x, y, 0.0f, s1, t1 ) );
winding.AddPoint( idVec5( x+w, y, 0.0f, s2, t1 ) );
winding.AddPoint( idVec5( x+w, y+h, 0.0f, s2, t2 ) );
winding.AddPoint( idVec5( x, y+h, 0.0f, s1, t2 ) );
for ( int i = 0; i < winding.GetNumPoints(); i++ ) {
winding[i].ToVec3() -= origin;
winding[i].ToVec3() *= mat;
winding[i].ToVec3() += origin;
}
DrawWinding( winding, shader );
}
void idDeviceContext::DrawMaterial(float x, float y, float w, float h, const idMaterial *mat, const idVec4 &color, float scalex, float scaley) {
renderSystem->SetColor(color);
float s0, s1, t0, t1;
//
// handle negative scales as well
if ( scalex < 0 )
{
w *= -1;
scalex *= -1;
}
if ( scaley < 0 )
{
h *= -1;
scaley *= -1;
}
//
if( w < 0 ) { // flip about vertical
w = -w;
s0 = 1 * scalex;
s1 = 0;
}
else {
s0 = 0;
s1 = 1 * scalex;
}
if( h < 0 ) { // flip about horizontal
h = -h;
t0 = 1 * scaley;
t1 = 0;
}
else {
t0 = 0;
t1 = 1 * scaley;
}
if ( ClippedCoords( &x, &y, &w, &h, &s0, &t0, &s1, &t1 ) ) {
return;
}
DrawStretchPic( x, y, w, h, s0, t0, s1, t1, mat);
}
void idDeviceContext::DrawMaterialRotated(float x, float y, float w, float h, const idMaterial *mat, const idVec4 &color, float scalex, float scaley, float angle) {
renderSystem->SetColor(color);
float s0, s1, t0, t1;
//
// handle negative scales as well
if ( scalex < 0 )
{
w *= -1;
scalex *= -1;
}
if ( scaley < 0 )
{
h *= -1;
scaley *= -1;
}
//
if( w < 0 ) { // flip about vertical
w = -w;
s0 = 1 * scalex;
s1 = 0;
}
else {
s0 = 0;
s1 = 1 * scalex;
}
if( h < 0 ) { // flip about horizontal
h = -h;
t0 = 1 * scaley;
t1 = 0;
}
else {
t0 = 0;
t1 = 1 * scaley;
}
if ( angle == 0.0f && ClippedCoords( &x, &y, &w, &h, &s0, &t0, &s1, &t1 ) ) {
return;
}
DrawStretchPicRotated( x, y, w, h, s0, t0, s1, t1, mat, angle);
}
void idDeviceContext::DrawStretchPicRotated(float x, float y, float w, float h, float s1, float t1, float s2, float t2, const idMaterial *shader, float angle) {
idFixedWinding winding;
winding.AddPoint( idVec5( x, y, 0.0f, s1, t1 ) );
winding.AddPoint( idVec5( x+w, y, 0.0f, s2, t1 ) );
winding.AddPoint( idVec5( x+w, y+h, 0.0f, s2, t2 ) );
winding.AddPoint( idVec5( x, y+h, 0.0f, s1, t2 ) );
for ( int i = 0; i < winding.GetNumPoints(); i++ ) {
winding[i].ToVec3() -= origin;
winding[i].ToVec3() *= mat;
winding[i].ToVec3() += origin;
}
//Generate a translation so we can translate to the center of the image rotate and draw
idVec3 origTrans;
origTrans.x = x+(w/2);
origTrans.y = y+(h/2);
origTrans.z = 0;
//Rotate the verts about the z axis before drawing them
idMat3 rotz;
rotz.Identity();
float sinAng, cosAng;
idMath::SinCos( angle, sinAng, cosAng );
rotz[0][0] = cosAng;
rotz[0][1] = sinAng;
rotz[1][0] = -sinAng;
rotz[1][1] = cosAng;
for (int i = 0; i < winding.GetNumPoints(); i++) {
winding[i].ToVec3() -= origTrans;
winding[i].ToVec3() *= rotz;
winding[i].ToVec3() += origTrans;
}
DrawWinding( winding, shader );
}
void idDeviceContext::DrawFilledRect( float x, float y, float w, float h, const idVec4 &color) {
if ( color.w == 0.0f ) {
return;
}
renderSystem->SetColor(color);
if (ClippedCoords(&x, &y, &w, &h, NULL, NULL, NULL, NULL)) {
return;
}
DrawStretchPic( x, y, w, h, 0, 0, 0, 0, whiteImage);
}
void idDeviceContext::DrawRect( float x, float y, float w, float h, float size, const idVec4 &color) {
if ( color.w == 0.0f ) {
return;
}
renderSystem->SetColor(color);
if (ClippedCoords(&x, &y, &w, &h, NULL, NULL, NULL, NULL)) {
return;
}
DrawStretchPic( x, y, size, h, 0, 0, 0, 0, whiteImage );
DrawStretchPic( x + w - size, y, size, h, 0, 0, 0, 0, whiteImage );
DrawStretchPic( x, y, w, size, 0, 0, 0, 0, whiteImage );
DrawStretchPic( x, y + h - size, w, size, 0, 0, 0, 0, whiteImage );
}
void idDeviceContext::DrawMaterialRect( float x, float y, float w, float h, float size, const idMaterial *mat, const idVec4 &color) {
if ( color.w == 0.0f ) {
return;
}
renderSystem->SetColor(color);
DrawMaterial( x, y, size, h, mat, color );
DrawMaterial( x + w - size, y, size, h, mat, color );
DrawMaterial( x, y, w, size, mat, color );
DrawMaterial( x, y + h - size, w, size, mat, color );
}
void idDeviceContext::SetCursor(int n) {
if ( n > CURSOR_ARROW && n < CURSOR_COUNT ) {
keyBindings_t binds = idKeyInput::KeyBindingsFromBinding( "_use", true );
keyNum_t keyNum = K_NONE;
if ( in_useJoystick.GetBool() ) {
keyNum = idKeyInput::StringToKeyNum( binds.gamepad.c_str() );
}
if ( keyNum != K_NONE ) {
if ( keyNum == K_JOY1 ) {
cursor = CURSOR_HAND_JOY1;
} else if ( keyNum == K_JOY2 ) {
cursor = CURSOR_HAND_JOY2;
} else if ( keyNum == K_JOY3 ) {
cursor = CURSOR_HAND_JOY3;
} else if ( keyNum == K_JOY4 ) {
cursor = CURSOR_HAND_JOY4;
}
} else {
cursor = CURSOR_HAND;
}
} else {
cursor = CURSOR_ARROW;
}
}
void idDeviceContext::DrawCursor(float *x, float *y, float size) {
if (*x < 0) {
*x = 0;
}
if (*x >= VIRTUAL_WIDTH) {
*x = VIRTUAL_WIDTH;
}
if (*y < 0) {
*y = 0;
}
if (*y >= VIRTUAL_HEIGHT) {
*y = VIRTUAL_HEIGHT;
}
renderSystem->SetColor(colorWhite);
DrawStretchPic( *x, *y, size, size, 0, 0, 1, 1, cursorImages[cursor]);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void idDeviceContext::PaintChar( float x, float y, const scaledGlyphInfo_t & glyphInfo ) {
y -= glyphInfo.top;
x += glyphInfo.left;
float w = glyphInfo.width;
float h = glyphInfo.height;
float s = glyphInfo.s1;
float t = glyphInfo.t1;
float s2 = glyphInfo.s2;
float t2 = glyphInfo.t2;
const idMaterial * hShader = glyphInfo.material;
if ( ClippedCoords( &x, &y, &w, &h, &s, &t, &s2, &t2) ) {
return;
}
DrawStretchPic(x, y, w, h, s, t, s2, t2, hShader);
}
int idDeviceContext::DrawText(float x, float y, float scale, idVec4 color, const char *text, float adjust, int limit, int style, int cursor) {
int len;
idVec4 newColor;
idStr drawText = text;
int charIndex = 0;
if ( text && color.w != 0.0f ) {
renderSystem->SetColor(color);
memcpy(&newColor[0], &color[0], sizeof(idVec4));
len = drawText.Length();
if (limit > 0 && len > limit) {
len = limit;
}
float prevGlyphSkip = 0.0f;
while ( charIndex < len ) {
uint32 textChar = drawText.UTF8Char( charIndex );
if ( idStr::IsColor( drawText.c_str() + charIndex ) ) {
if ( drawText[ charIndex++ ] == C_COLOR_DEFAULT ) {
newColor = color;
} else {
newColor = idStr::ColorForIndex( charIndex );
newColor[3] = color[3];
}
if (cursor == charIndex-1 || cursor == charIndex) {
float backup = 0.0f;
if ( prevGlyphSkip > 0.0f ) {
backup = ( prevGlyphSkip + adjust) / 5.0f;
}
if ( cursor == charIndex-1 ) {
backup *= 2.0f;
} else {
renderSystem->SetColor(newColor);
}
DrawEditCursor(x - backup, y, scale);
}
renderSystem->SetColor(newColor);
continue;
} else {
scaledGlyphInfo_t glyphInfo;
activeFont->GetScaledGlyph( scale, textChar, glyphInfo );
prevGlyphSkip = glyphInfo.xSkip;
PaintChar( x, y, glyphInfo );
if (cursor == charIndex-1) {
DrawEditCursor(x, y, scale);
}
x += glyphInfo.xSkip + adjust;
}
}
if (cursor == len) {
DrawEditCursor(x, y, scale);
}
}
return drawText.Length();
}
void idDeviceContext::SetSize( float width, float height ) {
xScale = VIRTUAL_WIDTH / width;
yScale = VIRTUAL_HEIGHT / height;
}
void idDeviceContext::SetOffset( float x, float y ) {
xOffset = x;
yOffset = y;
}
int idDeviceContext::CharWidth( const char c, float scale ) {
return idMath::Ftoi( activeFont->GetGlyphWidth( scale, c ) );
}
int idDeviceContext::TextWidth( const char *text, float scale, int limit ) {
if ( text == NULL ) {
return 0;
}
int i;
float width = 0;
if ( limit > 0 ) {
for ( i = 0; text[i] != '\0' && i < limit; i++ ) {
if ( idStr::IsColor( text + i ) ) {
i++;
} else {
width += activeFont->GetGlyphWidth( scale, ((const unsigned char *)text)[i] );
}
}
} else {
for ( i = 0; text[i] != '\0'; i++ ) {
if ( idStr::IsColor( text + i ) ) {
i++;
} else {
width += activeFont->GetGlyphWidth( scale, ((const unsigned char *)text)[i] );
}
}
}
return idMath::Ftoi( width );
}
int idDeviceContext::TextHeight(const char *text, float scale, int limit) {
return idMath::Ftoi( activeFont->GetLineHeight( scale ) );
}
int idDeviceContext::MaxCharWidth(float scale) {
return idMath::Ftoi( activeFont->GetMaxCharWidth( scale ) );
}
int idDeviceContext::MaxCharHeight(float scale) {
return idMath::Ftoi( activeFont->GetLineHeight( scale ) );
}
const idMaterial *idDeviceContext::GetScrollBarImage(int index) {
if (index >= SCROLLBAR_HBACK && index < SCROLLBAR_COUNT) {
return scrollBarImages[index];
}
return scrollBarImages[SCROLLBAR_HBACK];
}
// this only supports left aligned text
idRegion *idDeviceContext::GetTextRegion(const char *text, float textScale, idRectangle rectDraw, float xStart, float yStart) {
return NULL;
}
void idDeviceContext::DrawEditCursor( float x, float y, float scale ) {
if ( (int)( idLib::frameNumber >> 4 ) & 1 ) {
return;
}
char cursorChar = (overStrikeMode) ? '_' : '|';
scaledGlyphInfo_t glyphInfo;
activeFont->GetScaledGlyph( scale, cursorChar, glyphInfo );
PaintChar( x, y, glyphInfo );
}
int idDeviceContext::DrawText( const char *text, float textScale, int textAlign, idVec4 color, idRectangle rectDraw, bool wrap, int cursor, bool calcOnly, idList<int> *breaks, int limit ) {
int count = 0;
int charIndex = 0;
int lastBreak = 0;
float y = 0.0f;
float textWidth = 0.0f;
float textWidthAtLastBreak = 0.0f;
float charSkip = MaxCharWidth( textScale ) + 1;
float lineSkip = MaxCharHeight( textScale );
bool lineBreak = false;
bool wordBreak = false;
idStr drawText = text;
idStr textBuffer;
if (!calcOnly && !(text && *text)) {
if (cursor == 0) {
renderSystem->SetColor(color);
DrawEditCursor(rectDraw.x, lineSkip + rectDraw.y, textScale);
}
return idMath::Ftoi( rectDraw.w / charSkip );
}
y = lineSkip + rectDraw.y;
if ( breaks ) {
breaks->Append(0);
}
while ( charIndex < drawText.Length() ) {
uint32 textChar = drawText.UTF8Char( charIndex );
// See if we need to start a new line.
if ( textChar == '\n' || textChar == '\r' || charIndex == drawText.Length() ) {
lineBreak = true;
if ( charIndex < drawText.Length() ) {
// New line character and we still have more text to read.
char nextChar = drawText[ charIndex + 1 ];
if ( ( textChar == '\n' && nextChar == '\r' ) || ( textChar == '\r' && nextChar == '\n' ) ) {
// Just absorb extra newlines.
textChar = drawText.UTF8Char( charIndex );
}
}
}
// Check for escape colors if not then simply get the glyph width.
if ( textChar == C_COLOR_ESCAPE && charIndex < drawText.Length() ) {
textBuffer.AppendUTF8Char( textChar );
textChar = drawText.UTF8Char( charIndex );
}
// If the character isn't a new line then add it to the text buffer.
if ( textChar != '\n' && textChar != '\r' ) {
textWidth += activeFont->GetGlyphWidth( textScale, textChar );
textBuffer.AppendUTF8Char( textChar );
}
if ( !lineBreak && ( textWidth > rectDraw.w ) ) {
// The next character will cause us to overflow, if we haven't yet found a suitable
// break spot, set it to be this character
if ( textBuffer.Length() > 0 && lastBreak == 0 ) {
lastBreak = textBuffer.Length();
textWidthAtLastBreak = textWidth;
}
wordBreak = true;
} else if ( lineBreak || ( wrap && ( textChar == ' ' || textChar == '\t' ) ) ) {
// The next character is in view, so if we are a break character, store our position
lastBreak = textBuffer.Length();
textWidthAtLastBreak = textWidth;
}
// We need to go to a new line
if ( lineBreak || wordBreak ) {
float x = rectDraw.x;
if ( textWidthAtLastBreak > 0 ) {
textWidth = textWidthAtLastBreak;
}
// Align text if needed
if (textAlign == ALIGN_RIGHT) {
x = rectDraw.x + rectDraw.w - textWidth;
} else if (textAlign == ALIGN_CENTER) {
x = rectDraw.x + (rectDraw.w - textWidth) / 2;
}
if ( wrap || lastBreak > 0 ) {
// This is a special case to handle breaking in the middle of a word.
// if we didn't do this, the cursor would appear on the end of this line
// and the beginning of the next.
if ( wordBreak && cursor >= lastBreak && lastBreak == textBuffer.Length() ) {
cursor++;
}
}
// Draw what's in the current text buffer.
if (!calcOnly) {
if ( lastBreak > 0 ) {
count += DrawText(x, y, textScale, color, textBuffer.Left( lastBreak ).c_str(), 0, 0, 0, cursor);
textBuffer = textBuffer.Right( textBuffer.Length() - lastBreak );
} else {
count += DrawText(x, y, textScale, color, textBuffer.c_str(), 0, 0, 0, cursor);
textBuffer.Clear();
}
}
if ( cursor < lastBreak ) {
cursor = -1;
} else if ( cursor >= 0 ) {
cursor -= ( lastBreak + 1 );
}
// If wrap is disabled return at this point.
if ( !wrap ) {
return lastBreak;
}
// If we've hit the allowed character limit then break.
if ( limit && count > limit ) {
break;
}
y += lineSkip + 5;
if ( !calcOnly && y > rectDraw.Bottom() ) {
break;
}
// If breaks were requested then make a note of this one.
if (breaks) {
breaks->Append( drawText.Length() - charIndex );
}
// Reset necessary parms for next line.
lastBreak = 0;
textWidth = 0;
textWidthAtLastBreak = 0;
lineBreak = false;
wordBreak = false;
// Reassess the remaining width
for ( int i = 0; i < textBuffer.Length(); ) {
if ( textChar != C_COLOR_ESCAPE ) {
textWidth += activeFont->GetGlyphWidth( textScale, textBuffer.UTF8Char( i ) );
}
}
continue;
}
}
return idMath::Ftoi( rectDraw.w / charSkip );
}
/*
=============
idRectangle::String
=============
*/
char *idRectangle::String() const {
static int index = 0;
static char str[ 8 ][ 48 ];
char *s;
// use an array so that multiple toString's won't collide
s = str[ index ];
index = (index + 1)&7;
sprintf( s, "%.2f %.2f %.2f %.2f", x, y, w, h );
return s;
}
/*
================================================================================================
OPTIMIZED VERSIONS
================================================================================================
*/
// this is only called for the cursor and debug strings, and it should
// scope properly with push/pop clipRect
void idDeviceContextOptimized::EnableClipping(bool b) {
if ( b == enableClipping ) {
return;
}
enableClipping = b;
if ( !enableClipping ) {
PopClipRect();
} else {
// the actual value of the rect is irrelvent
PushClipRect( idRectangle( 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT ) );
// allow drawing beyond the normal bounds for debug text
// this also allows the cursor to draw outside, so we might want
// to make this exactly the screen bounds, since we aren't likely
// to ever turn on the gui debug text again...
clipX1 = -SCREEN_WIDTH;
clipX2 = SCREEN_WIDTH * 2;
clipY1 = -SCREEN_HEIGHT;
clipY2 = SCREEN_HEIGHT * 2;
}
};
void idDeviceContextOptimized::PopClipRect() {
if (clipRects.Num()) {
clipRects.SetNum( clipRects.Num()-1 ); // don't resize the list, just change num
}
if ( clipRects.Num() > 0 ) {
const idRectangle & clipRect = clipRects[ clipRects.Num() - 1 ];
clipX1 = clipRect.x;
clipY1 = clipRect.y;
clipX2 = clipRect.x + clipRect.w;
clipY2 = clipRect.y + clipRect.h;
} else {
clipX1 = 0;
clipY1 = 0;
clipX2 = SCREEN_WIDTH;
clipY2 = SCREEN_HEIGHT;
}
}
static const idRectangle baseScreenRect( 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT );
void idDeviceContextOptimized::PushClipRect(idRectangle r) {
const idRectangle & prev = ( clipRects.Num() == 0 ) ? baseScreenRect : clipRects[clipRects.Num()-1];
// instead of storing the rect, store the intersection of the rect
// with the previous rect, so ClippedCoords() only has to test against one rect
idRectangle intersection = prev;
intersection.ClipAgainst( r, false );
clipRects.Append( intersection );
const idRectangle & clipRect = clipRects[ clipRects.Num() - 1 ];
clipX1 = clipRect.x;
clipY1 = clipRect.y;
clipX2 = clipRect.x + clipRect.w;
clipY2 = clipRect.y + clipRect.h;
}
bool idDeviceContextOptimized::ClippedCoords(float *x, float *y, float *w, float *h, float *s1, float *t1, float *s2, float *t2) {
const float ox = *x;
const float oy = *y;
const float ow = *w;
const float oh = *h;
// presume visible first
if ( ox >= clipX1 && oy >= clipY1 && ox + ow <= clipX2 && oy + oh <= clipY2 ) {
return false;
}
// do clipping
if ( ox < clipX1 ) {
*w -= clipX1 - ox;
*x = clipX1;
} else if ( ox > clipX2 ) {
return true;
}
if ( oy < clipY1) {
*h -= clipY1 - oy;
*y = clipY1;
} else if ( oy > clipY2) {
return true;
}
if ( *x + *w > clipX2 ) {
*w = clipX2 - *x;
}
if ( *y + *h > clipY2 ) {
*h = clipY2 - *y;
}
if ( *w <= 0 || *h <= 0 ) {
return true;
}
// filled rects won't pass in texcoords
if ( s1 ) {
float ns1, ns2, nt1, nt2;
// upper left
float u = ( *x - ox ) / ow;
ns1 = *s1 * ( 1.0f - u ) + *s2 * ( u );
// upper right
u = ( *x + *w - ox ) / ow;
ns2 = *s1 * ( 1.0f - u ) + *s2 * ( u );
// lower left
u = ( *y - oy ) / oh;
nt1 = *t1 * ( 1.0f - u ) + *t2 * ( u );
// lower right
u = ( *y + *h - oy ) / oh;
nt2 = *t1 * ( 1.0f - u ) + *t2 * ( u );
// set values
*s1 = ns1;
*s2 = ns2;
*t1 = nt1;
*t2 = nt2;
}
// still needs to be drawn
return false;
}
/*
=============
idDeviceContextOptimized::DrawText
=============
*/
static triIndex_t quadPicIndexes[6] = { 3, 0, 2, 2, 0, 1 };
int idDeviceContextOptimized::DrawText(float x, float y, float scale, idVec4 color, const char *text, float adjust, int limit, int style, int cursor) {
if ( !matIsIdentity || cursor != -1 ) {
// fallback to old code
return idDeviceContext::DrawText( x, y, scale, color, text, adjust, limit, style, cursor );
}
idStr drawText = text;
if ( drawText.Length() == 0 ) {
return 0;
}
if ( color.w == 0.0f ) {
return 0;
}
const uint32 currentColor = PackColor( color );
uint32 currentColorNativeByteOrder = LittleLong( currentColor );
int len = drawText.Length();
if (limit > 0 && len > limit) {
len = limit;
}
int charIndex = 0;
while ( charIndex < drawText.Length() ) {
uint32 textChar = drawText.UTF8Char( charIndex );
if ( textChar == C_COLOR_ESCAPE ) {
// I'm not sure if inline text color codes are used anywhere in the game,
// they may only be needed for multi-color user names
idVec4 newColor;
uint32 colorIndex = drawText.UTF8Char( charIndex );
if ( colorIndex == C_COLOR_DEFAULT ) {
newColor = color;
} else {
newColor = idStr::ColorForIndex( colorIndex );
newColor[3] = color[3];
}
renderSystem->SetColor(newColor);
currentColorNativeByteOrder = LittleLong( PackColor( newColor ) );
continue;
}
scaledGlyphInfo_t glyphInfo;
activeFont->GetScaledGlyph( scale, textChar, glyphInfo );
// PaintChar( x, y, glyphInfo );
float drawY = y - glyphInfo.top;
float drawX = x + glyphInfo.left;
float w = glyphInfo.width;
float h = glyphInfo.height;
float s = glyphInfo.s1;
float t = glyphInfo.t1;
float s2 = glyphInfo.s2;
float t2 = glyphInfo.t2;
if ( !ClippedCoords( &drawX, &drawY, &w, &h, &s, &t, &s2, &t2) ) {
float x1 = xOffset + drawX * xScale;
float x2 = xOffset + ( drawX + w ) * xScale;
float y1 = yOffset + drawY * yScale;
float y2 = yOffset + ( drawY + h ) * yScale;
idDrawVert * verts = tr_guiModel->AllocTris( 4, quadPicIndexes, 6, glyphInfo.material, 0, STEREO_DEPTH_TYPE_NONE );
if ( verts != NULL ) {
verts[0].xyz[0] = x1;
verts[0].xyz[1] = y1;
verts[0].xyz[2] = 0.0f;
verts[0].SetTexCoord( s, t );
verts[0].SetNativeOrderColor( currentColorNativeByteOrder );
verts[0].ClearColor2();
verts[1].xyz[0] = x2;
verts[1].xyz[1] = y1;
verts[1].xyz[2] = 0.0f;
verts[1].SetTexCoord( s2, t );
verts[1].SetNativeOrderColor( currentColorNativeByteOrder );
verts[1].ClearColor2();
verts[2].xyz[0] = x2;
verts[2].xyz[1] = y2;
verts[2].xyz[2] = 0.0f;
verts[2].SetTexCoord( s2, t2 );
verts[2].SetNativeOrderColor( currentColorNativeByteOrder );
verts[2].ClearColor2();
verts[3].xyz[0] = x1;
verts[3].xyz[1] = y2;
verts[3].xyz[2] = 0.0f;
verts[3].SetTexCoord( s, t2 );
verts[3].SetNativeOrderColor( currentColorNativeByteOrder );
verts[3].ClearColor2();
}
}
x += glyphInfo.xSkip + adjust;
}
return drawText.Length();
}
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