mirror of
https://github.com/wiiu-env/libgui.git
synced 2024-11-15 04:45:06 +01:00
f3f369029c
Some fonts look really ugly with this anti-aliasing method of renderin in double size, so it shouldn't be default. Signed-off-by: Thomas Rohloff <v10lator@myway.de>
560 lines
15 KiB
C++
560 lines
15 KiB
C++
/****************************************************************************
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* Copyright (C) 2015 Dimok
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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#include <gui/GuiText.h>
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#include <gui/FreeTypeGX.h>
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#include <gui/video/CVideo.h>
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FreeTypeGX * GuiText::presentFont = NULL;
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int32_t GuiText::presetSize = 28;
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float GuiText::presetInternalRenderingScale = 1.0f;
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int32_t GuiText::presetMaxWidth = 0xFFFF;
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int32_t GuiText::presetAlignment = ALIGN_CENTER | ALIGN_MIDDLE;
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GX2ColorF32 GuiText::presetColor = (GX2ColorF32) {
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1.0f, 1.0f, 1.0f, 1.0f
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};
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#define TEXT_SCROLL_DELAY 6
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#define TEXT_SCROLL_INITIAL_DELAY 10
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#define MAX_LINES_TO_DRAW 10
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/**
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* Constructor for the GuiText class.
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*/
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GuiText::GuiText() {
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text = NULL;
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size = presetSize;
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currentSize = size;
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color = glm::vec4(presetColor.r, presetColor.g, presetColor.b, presetColor.a);
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alpha = presetColor.a;
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alignment = presetAlignment;
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maxWidth = presetMaxWidth;
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wrapMode = 0;
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textWidth = 0;
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font = presentFont;
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linestodraw = MAX_LINES_TO_DRAW;
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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textScrollDelay = TEXT_SCROLL_DELAY;
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defaultBlur = 4.0f;
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blurGlowIntensity = 0.0f;
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blurAlpha = 0.0f;
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blurGlowColor = glm::vec4(0.0f);
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internalRenderingScale = presetInternalRenderingScale;
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}
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GuiText::GuiText(const char * t, int32_t s, const glm::vec4 & c) {
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text = NULL;
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size = s;
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currentSize = size;
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color = c;
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alpha = c[3];
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alignment = ALIGN_CENTER | ALIGN_MIDDLE;
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maxWidth = presetMaxWidth;
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wrapMode = 0;
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textWidth = 0;
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font = presentFont;
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linestodraw = MAX_LINES_TO_DRAW;
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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textScrollDelay = TEXT_SCROLL_DELAY;
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defaultBlur = 4.0f;
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blurGlowIntensity = 0.0f;
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blurAlpha = 0.0f;
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blurGlowColor = glm::vec4(0.0f);
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internalRenderingScale = presetInternalRenderingScale;
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if(t) {
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text = FreeTypeGX::charToWideChar(t);
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if(!text)
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return;
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textWidth = font->getWidth(text, currentSize);
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}
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}
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GuiText::GuiText(const wchar_t * t, int32_t s, const glm::vec4 & c) {
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text = NULL;
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size = s;
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currentSize = size;
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color = c;
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alpha = c[3];
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alignment = ALIGN_CENTER | ALIGN_MIDDLE;
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maxWidth = presetMaxWidth;
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wrapMode = 0;
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textWidth = 0;
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font = presentFont;
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linestodraw = MAX_LINES_TO_DRAW;
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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textScrollDelay = TEXT_SCROLL_DELAY;
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defaultBlur = 4.0f;
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blurGlowIntensity = 0.0f;
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blurAlpha = 0.0f;
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blurGlowColor = glm::vec4(0.0f);
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internalRenderingScale = presetInternalRenderingScale;
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if(t) {
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text = new (std::nothrow) wchar_t[wcslen(t)+1];
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if(!text)
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return;
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wcscpy(text, t);
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textWidth = font->getWidth(text, currentSize);
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}
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}
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/**
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* Constructor for the GuiText class, uses presets
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*/
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GuiText::GuiText(const char * t) {
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text = NULL;
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size = presetSize;
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currentSize = size;
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color = glm::vec4(presetColor.r, presetColor.g, presetColor.b, presetColor.a);
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alpha = presetColor.a;
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alignment = presetAlignment;
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maxWidth = presetMaxWidth;
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wrapMode = 0;
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textWidth = 0;
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font = presentFont;
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linestodraw = MAX_LINES_TO_DRAW;
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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textScrollDelay = TEXT_SCROLL_DELAY;
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defaultBlur = 4.0f;
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blurGlowIntensity = 0.0f;
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blurAlpha = 0.0f;
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blurGlowColor = glm::vec4(0.0f);
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internalRenderingScale = presetInternalRenderingScale;
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if(t) {
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text = FreeTypeGX::charToWideChar(t);
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if(!text)
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return;
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textWidth = font->getWidth(text, currentSize);
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}
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}
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/**
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* Destructor for the GuiText class.
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*/
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GuiText::~GuiText() {
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if(text)
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delete [] text;
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text = NULL;
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clearDynamicText();
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}
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void GuiText::setText(const char * t) {
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if(text)
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delete [] text;
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text = NULL;
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clearDynamicText();
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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if(t) {
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text = FreeTypeGX::charToWideChar(t);
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if(!text)
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return;
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textWidth = font->getWidth(text, currentSize);
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}
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}
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void GuiText::setTextf(const char *format, ...) {
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if(!format) {
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setText((char *) NULL);
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return;
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}
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int32_t max_len = strlen(format) + 8192;
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char *tmp = new char[max_len];
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va_list va;
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va_start(va, format);
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if((vsnprintf(tmp, max_len, format, va) >= 0) && tmp) {
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setText(tmp);
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}
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va_end(va);
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if(tmp)
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delete [] tmp;
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}
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void GuiText::setText(const wchar_t * t) {
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if(text)
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delete [] text;
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text = NULL;
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clearDynamicText();
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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if(t) {
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text = new (std::nothrow) wchar_t[wcslen(t)+1];
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if(!text)
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return;
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wcscpy(text, t);
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textWidth = font->getWidth(text, currentSize);
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}
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}
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void GuiText::clearDynamicText() {
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for(uint32_t i = 0; i < textDyn.size(); i++) {
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if(textDyn[i])
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delete [] textDyn[i];
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}
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textDyn.clear();
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textDynWidth.clear();
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}
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void GuiText::setPresets(int32_t sz, const glm::vec4 & c, int32_t w, int32_t a) {
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presetSize = sz;
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presetColor = (GX2ColorF32) {
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(float)c.r / 255.0f, (float)c.g / 255.0f, (float)c.b / 255.0f, (float)c.a / 255.0f
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};
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presetMaxWidth = w;
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presetAlignment = a;
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}
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void GuiText::setPresetFont(FreeTypeGX *f) {
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presentFont = f;
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}
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void GuiText::setFontSize(int32_t s) {
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size = s;
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}
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void GuiText::setMaxWidth(int32_t width, int32_t w) {
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maxWidth = width;
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wrapMode = w;
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if(w == SCROLL_HORIZONTAL) {
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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textScrollDelay = TEXT_SCROLL_DELAY;
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}
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clearDynamicText();
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}
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void GuiText::setColor(const glm::vec4 & c) {
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color = c;
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alpha = c[3];
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}
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void GuiText::setBlurGlowColor(float blur, const glm::vec4 & c) {
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blurGlowColor = c;
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blurGlowIntensity = blur;
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blurAlpha = c[3];
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}
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int32_t GuiText::getTextWidth(int32_t ind) {
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if(ind < 0 || ind >= (int32_t) textDyn.size())
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return this->getTextWidth();
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return font->getWidth(textDyn[ind], currentSize);
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}
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const wchar_t * GuiText::getDynText(int32_t ind) {
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if(ind < 0 || ind >= (int32_t) textDyn.size())
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return text;
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return textDyn[ind];
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}
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/**
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* Change font
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*/
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bool GuiText::setFont(FreeTypeGX *f) {
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if(!f)
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return false;
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font = f;
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textWidth = font->getWidth(text, currentSize);
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return true;
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}
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std::string GuiText::toUTF8(void) const {
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if(!text)
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return std::string();
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char *pUtf8 = FreeTypeGX::wideCharToUTF8(text);
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if(!pUtf8)
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return std::string();
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std::string strOutput(pUtf8);
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delete [] pUtf8;
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return strOutput;
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}
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void GuiText::makeDottedText() {
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int32_t pos = textDyn.size();
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textDyn.resize(pos + 1);
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int32_t i = 0, currentWidth = 0;
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textDyn[pos] = new (std::nothrow) wchar_t[maxWidth];
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if(!textDyn[pos]) {
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textDyn.resize(pos);
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return;
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}
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while (text[i]) {
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currentWidth += font->getCharWidth(text[i], currentSize, i > 0 ? text[i - 1] : 0);
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if (currentWidth >= maxWidth && i > 2) {
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textDyn[pos][i - 2] = '.';
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textDyn[pos][i - 1] = '.';
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textDyn[pos][i] = '.';
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i++;
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break;
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}
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textDyn[pos][i] = text[i];
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i++;
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}
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textDyn[pos][i] = 0;
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}
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void GuiText::scrollText(uint32_t frameCount) {
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if (textDyn.size() == 0) {
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int32_t pos = textDyn.size();
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int32_t i = 0, currentWidth = 0;
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textDyn.resize(pos + 1);
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textDyn[pos] = new (std::nothrow) wchar_t[maxWidth];
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if(!textDyn[pos]) {
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textDyn.resize(pos);
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return;
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}
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while (text[i] && currentWidth < maxWidth) {
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textDyn[pos][i] = text[i];
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currentWidth += font->getCharWidth(text[i], currentSize, i > 0 ? text[i - 1] : 0);
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++i;
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}
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textDyn[pos][i] = 0;
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return;
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}
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if (frameCount % textScrollDelay != 0) {
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return;
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}
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if (textScrollInitialDelay) {
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--textScrollInitialDelay;
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return;
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}
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int32_t stringlen = wcslen(text);
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++textScrollPos;
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if (textScrollPos > stringlen) {
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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}
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int32_t ch = textScrollPos;
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int32_t pos = textDyn.size() - 1;
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if (!textDyn[pos])
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textDyn[pos] = new (std::nothrow) wchar_t[maxWidth];
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if(!textDyn[pos]) {
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textDyn.resize(pos);
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return;
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}
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int32_t i = 0, currentWidth = 0;
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while (currentWidth < maxWidth) {
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if (ch > stringlen - 1) {
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textDyn[pos][i++] = ' ';
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currentWidth += font->getCharWidth(L' ', currentSize, ch > 0 ? text[ch - 1] : 0);
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textDyn[pos][i++] = ' ';
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currentWidth += font->getCharWidth(L' ', currentSize, L' ');
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textDyn[pos][i++] = ' ';
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currentWidth += font->getCharWidth(L' ', currentSize, L' ');
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ch = 0;
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if(currentWidth >= maxWidth)
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break;
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}
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textDyn[pos][i] = text[ch];
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currentWidth += font->getCharWidth(text[ch], currentSize, ch > 0 ? text[ch - 1] : 0);
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++ch;
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++i;
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}
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textDyn[pos][i] = 0;
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}
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void GuiText::wrapText() {
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if (textDyn.size() > 0) return;
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int32_t i = 0;
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int32_t ch = 0;
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int32_t linenum = 0;
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int32_t lastSpace = -1;
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int32_t lastSpaceIndex = -1;
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int32_t currentWidth = 0;
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while (text[ch] && linenum < linestodraw) {
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if (linenum >= (int32_t) textDyn.size()) {
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textDyn.resize(linenum + 1);
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textDyn[linenum] = new (std::nothrow) wchar_t[maxWidth];
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if(!textDyn[linenum]) {
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textDyn.resize(linenum);
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break;
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}
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}
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textDyn[linenum][i] = text[ch];
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textDyn[linenum][i + 1] = 0;
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currentWidth += font->getCharWidth(text[ch], currentSize, ch > 0 ? text[ch - 1] : 0x0000);
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if (currentWidth >= maxWidth || (text[ch] == '\n')) {
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if(text[ch] == '\n') {
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lastSpace = -1;
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lastSpaceIndex = -1;
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} else if (lastSpace >= 0) {
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textDyn[linenum][lastSpaceIndex] = 0; // discard space, and everything after
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ch = lastSpace; // go backwards to the last space
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lastSpace = -1; // we have used this space
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lastSpaceIndex = -1;
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}
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if (linenum + 1 == linestodraw && text[ch + 1] != 0x0000) {
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if(i < 2)
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i = 2;
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textDyn[linenum][i - 2] = '.';
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textDyn[linenum][i - 1] = '.';
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textDyn[linenum][i] = '.';
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textDyn[linenum][i + 1] = 0;
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}
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currentWidth = 0;
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++linenum;
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i = -1;
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}
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if (text[ch] == ' ' && i >= 0) {
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lastSpace = ch;
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lastSpaceIndex = i;
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}
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++ch;
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++i;
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}
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}
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/**
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* Draw the text on screen
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*/
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void GuiText::draw(CVideo *pVideo) {
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if(!text)
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return;
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if(!isVisible())
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return;
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color[3] = getAlpha();
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blurGlowColor[3] = blurAlpha * getAlpha();
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float finalRenderingScale = 2.0f * internalRenderingScale;
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int32_t newSize = size * getScale() * finalRenderingScale;
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int32_t normal_size = size * getScale();
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if(newSize != currentSize) {
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currentSize = normal_size;
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if(text)
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textWidth = font->getWidth(text, normal_size);
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}
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float x_pos = getCenterX() * finalRenderingScale;
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float y_pos = getCenterY() * finalRenderingScale;
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if(maxWidth > 0 && maxWidth <= textWidth) {
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if(wrapMode == DOTTED) { // text dotted
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if(textDyn.size() == 0)
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makeDottedText();
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if(textDynWidth.size() != textDyn.size()) {
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textDynWidth.resize(textDyn.size());
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for(uint32_t i = 0; i < textDynWidth.size(); i++)
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textDynWidth[i] = font->getWidth(textDyn[i], newSize);
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}
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if(textDyn.size() > 0)
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font->drawText(pVideo, x_pos, y_pos, getDepth(), textDyn[textDyn.size()-1], newSize, color, alignment, textDynWidth[textDyn.size()-1], defaultBlur, blurGlowIntensity, blurGlowColor,finalRenderingScale);
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}
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else if(wrapMode == SCROLL_HORIZONTAL) {
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scrollText(pVideo->getFrameCount());
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if(textDyn.size() > 0)
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font->drawText(pVideo, x_pos, y_pos, getDepth(), textDyn[textDyn.size()-1], newSize, color, alignment, maxWidth*finalRenderingScale, defaultBlur, blurGlowIntensity, blurGlowColor,finalRenderingScale);
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} else if(wrapMode == WRAP) {
|
|
int32_t lineheight = newSize + 6;
|
|
int32_t yoffset = 0;
|
|
int32_t voffset = 0;
|
|
|
|
if(textDyn.size() == 0)
|
|
wrapText();
|
|
|
|
if(textDynWidth.size() != textDyn.size()) {
|
|
textDynWidth.resize(textDyn.size());
|
|
|
|
for(uint32_t i = 0; i < textDynWidth.size(); i++)
|
|
textDynWidth[i] = font->getWidth(textDyn[i], newSize);
|
|
}
|
|
|
|
if(alignment & ALIGN_MIDDLE)
|
|
voffset = (lineheight * (textDyn.size()-1)) >> 1;
|
|
|
|
for(uint32_t i = 0; i < textDyn.size(); i++) {
|
|
font->drawText(pVideo, x_pos, y_pos + voffset + yoffset, getDepth(), textDyn[i], newSize, color, alignment, textDynWidth[i], defaultBlur, blurGlowIntensity, blurGlowColor,finalRenderingScale);
|
|
yoffset -= lineheight;
|
|
}
|
|
}
|
|
} else {
|
|
uint16_t newtextWidth = font->getWidth(text, newSize);
|
|
font->drawText(pVideo, x_pos, y_pos, getDepth(), text, newSize, color, alignment, newtextWidth, defaultBlur, blurGlowIntensity, blurGlowColor,finalRenderingScale);
|
|
}
|
|
}
|