PulseStudio/VoxelEngine
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 1 Wiki Activity

multiline textbox mode

Browse Source
This commit is contained in:
MihailRis
2024-02-26 15:12:02 +03:00
parent 925ef426de
commit 256808630b
11 changed files with 260 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/frontend/gui/controls.cpp
+187 -24
View File
@@ -3,6 +3,7 @@
#include <queue>
#include <sstream>
#include <iostream>
#include <algorithm>
#include "../../window/Events.h"
#include "../../assets/Assets.h"
@@ -73,10 +74,52 @@ int Label::getTextYOffset() const {
return textYOffset;
}
size_t Label::getTextLineOffset(uint line) const {
size_t offset = 0;
size_t linesCount = 0;
while (linesCount < line && offset < text.length()) {
size_t endline = text.find(L'\n', offset);
if (endline == std::wstring::npos) {
break;
}
offset = endline+1;
linesCount++;
}
return offset;
}
int Label::getLineYOffset(uint line) const {
return line * totalLineHeight + textYOffset;
}
uint Label::getLineByYOffset(int offset) const {
if (offset < textYOffset) {
return 0;
}
return (offset - textYOffset) / totalLineHeight;
}
uint Label::getLineByTextIndex(size_t index) const {
size_t offset = 0;
size_t linesCount = 0;
while (offset < index && offset < text.length()) {
size_t endline = text.find(L'\n', offset);
if (endline == std::wstring::npos) {
break;
}
if (endline+1 > index) {
break;
}
offset = endline+1;
linesCount++;
}
return linesCount;
}
uint Label::getLinesNumber() const {
return lines;
}
void Label::draw(const GfxContext* pctx, Assets* assets) {
if (supplier) {
setText(supplier());
@@ -115,7 +158,7 @@ void Label::draw(const GfxContext* pctx, Assets* assets) {
coord.y += size.y-newsize.y;
break;
}
textYOffset = coord.y;
textYOffset = coord.y-calcCoord().y;
totalLineHeight = lineHeight * lineInterval;
if (multiline) {
@@ -334,23 +377,46 @@ void TextBox::draw(const GfxContext* pctx, Assets* assets) {
if (!isFocused())
return;
const int yoffset = 0;
const int lineHeight = font->getLineHeight();
glm::vec2 coord = calcCoord();
glm::vec2 size = getSize();
auto subctx = pctx->sub();
subctx.scissors(glm::vec4(coord.x, coord.y, size.x, size.y));
const int lineHeight = font->getLineHeight() * label->getLineInterval();
glm::vec2 lcoord = label->calcCoord();
lcoord.y -= 2;
auto batch = pctx->getBatch2D();
batch->texture(nullptr);
if (int((Window::time() - caretLastMove) * 2) % 2 == 0) {
uint line = label->getLineByTextIndex(caret);
uint lcaret = caret - label->getTextLineOffset(line);
batch->setColor(glm::vec4(1.0f));
int width = font->calcWidth(input, caret);
batch->rect(lcoord.x + width, lcoord.y+yoffset, 2, lineHeight);
int width = font->calcWidth(input, lcaret);
batch->rect(lcoord.x + width, lcoord.y+label->getLineYOffset(line), 2, lineHeight);
}
if (selectionStart != selectionEnd) {
batch->setColor(glm::vec4(0.8f, 0.9f, 1.0f, 0.5f));
int start = font->calcWidth(input, selectionStart);
int end = font->calcWidth(input, selectionEnd);
batch->rect(lcoord.x + start, lcoord.y+yoffset, end-start, lineHeight);
uint startLine = label->getLineByTextIndex(selectionStart);
uint endLine = label->getLineByTextIndex(selectionEnd);
batch->setColor(glm::vec4(0.8f, 0.9f, 1.0f, 0.25f));
int start = font->calcWidth(input, selectionStart-label->getTextLineOffset(startLine));
int end = font->calcWidth(input, selectionEnd-label->getTextLineOffset(endLine));
int startY = label->getLineYOffset(startLine);
int endY = label->getLineYOffset(startLine);
if (startLine == endLine) {
batch->rect(lcoord.x + start, lcoord.y+startY, end-start, lineHeight);
} else {
batch->rect(lcoord.x + start, lcoord.y+endY, label->getSize().x-start-padding.z-padding.x-2, lineHeight);
for (uint i = startLine+1; i < endLine; i++) {
batch->rect(lcoord.x, lcoord.y+label->getLineYOffset(i), label->getSize().x-padding.z-padding.x-2, lineHeight);
}
batch->rect(lcoord.x, lcoord.y+label->getLineYOffset(endLine), end, lineHeight);
}
}
batch->flush();
}
void TextBox::drawBackground(const GfxContext* pctx, Assets* assets) {
@@ -362,7 +428,7 @@ void TextBox::drawBackground(const GfxContext* pctx, Assets* assets) {
if (valid) {
if (isFocused()) {
batch->setColor(focusedColor);
} else if (hover) {
} else if (hover && !multiline) {
batch->setColor(hoverColor);
} else {
batch->setColor(color);
@@ -378,12 +444,20 @@ void TextBox::drawBackground(const GfxContext* pctx, Assets* assets) {
label->setColor(glm::vec4(input.empty() ? 0.5f : 1.0f));
label->setText(getText());
setScrollable(false);
if (multiline && font) {
setScrollable(true);
uint height = label->getLinesNumber() * font->getLineHeight() * label->getLineInterval();
label->setSize(glm::vec2(label->getSize().x, height));
actualLength = height;
} else {
setScrollable(false);
}
}
/// @brief Insert text at the caret. Also selected text will be erased
/// @param text Inserting text
void TextBox::paste(const std::wstring& text) {
eraseSelected();
if (caret >= input.length()) {
input += text;
@@ -391,7 +465,11 @@ void TextBox::paste(const std::wstring& text) {
auto left = input.substr(0, caret);
auto right = input.substr(caret);
input = left + text + right;
input.erase(std::remove(input.begin(), input.end(), '\r'), input.end());
}
// refresh label lines configuration for correct setCaret work
label->setText(input);
setCaret(caret + text.length());
validate();
}
@@ -432,6 +510,18 @@ void TextBox::extendSelection(int index) {
selectionEnd = std::max(selectionOrigin, normalized);
}
size_t TextBox::getLineLength(uint line) const {
size_t position = label->getTextLineOffset(line);
size_t lineLength = label->getTextLineOffset(line+1)-position;
if (lineLength == 0)
lineLength = input.length() - position + 1;
return lineLength;
}
size_t TextBox::getSelectionLength() const {
return selectionEnd - selectionStart;
}
/// @brief Set scroll offset
/// @param x scroll offset
void TextBox::setTextOffset(uint x) {
@@ -496,33 +586,45 @@ size_t TextBox::normalizeIndex(int index) {
/// @brief Calculate index of character at defined screen X position
/// @param x screen X position
/// @param y screen Y position
/// @return non-normalized character index
int TextBox::calcIndexAt(int x) const {
int TextBox::calcIndexAt(int x, int y) const {
if (font == nullptr)
return 0;
glm::vec2 lcoord = label->calcCoord();
uint line = label->getLineByYOffset(y-lcoord.y);
line = std::min(line, label->getLinesNumber()-1);
size_t lineLength = getLineLength(line);
uint offset = 0;
while (lcoord.x + font->calcWidth(input, offset) < x && offset <= input.length()) {
while (lcoord.x + font->calcWidth(input, offset) < x && offset < lineLength-1) {
offset++;
}
return offset;
return std::min(offset+label->getTextLineOffset(line), input.length());
}
void TextBox::click(GUI*, int x, int) {
int index = normalizeIndex(calcIndexAt(x));
void TextBox::click(GUI*, int x, int y) {
int index = normalizeIndex(calcIndexAt(x, y));
selectionStart = index;
selectionEnd = index;
selectionOrigin = index;
}
void TextBox::mouseMove(GUI*, int x, int y) {
int index = calcIndexAt(x);
int index = calcIndexAt(x, y);
setCaret(index);
extendSelection(index);
resetMaxLocalCaret();
}
void TextBox::resetMaxLocalCaret() {
maxLocalCaret = caret - label->getTextLineOffset(label->getLineByTextIndex(caret));
}
// TODO: refactor
void TextBox::keyPressed(keycode key) {
bool shiftPressed = Events::pressed(keycode::LEFT_SHIFT);
bool breakSelection = getSelectionLength() != 0 && !shiftPressed;
uint previousCaret = caret;
if (key == keycode::BACKSPACE) {
if (!eraseSelected() && caret > 0 && input.length() > 0) {
@@ -539,11 +641,18 @@ void TextBox::keyPressed(keycode key) {
validate();
}
} else if (key == keycode::ENTER) {
if (validate() && consumer) {
consumer(label->getText());
if (multiline) {
paste(L"\n");
} else {
if (validate() && consumer) {
consumer(label->getText());
}
defocus();
}
defocus();
} else if (key == keycode::TAB) {
paste(L" ");
} else if (key == keycode::LEFT) {
uint caret = breakSelection ? selectionStart : this->caret;
if (caret > 0) {
if (caret > input.length()) {
setCaret(input.length()-1);
@@ -554,12 +663,17 @@ void TextBox::keyPressed(keycode key) {
if (selectionStart == selectionEnd) {
selectionOrigin = previousCaret;
}
extendSelection(caret);
extendSelection(this->caret);
} else {
resetSelection();
}
} else {
setCaret(caret);
resetSelection();
}
resetMaxLocalCaret();
} else if (key == keycode::RIGHT) {
uint caret = breakSelection ? selectionEnd : this->caret;
if (caret < input.length()) {
setCaret(caret+1);
caretLastMove = Window::time();
@@ -567,10 +681,48 @@ void TextBox::keyPressed(keycode key) {
if (selectionStart == selectionEnd) {
selectionOrigin = previousCaret;
}
extendSelection(caret);
extendSelection(this->caret);
} else {
resetSelection();
}
} else {
setCaret(caret);
resetSelection();
}
resetMaxLocalCaret();
} else if (key == keycode::UP) {
uint caret = breakSelection ? selectionStart : this->caret;
uint caretLine = label->getLineByTextIndex(caret);
if (caretLine > 0) {
uint offset = std::min(size_t(maxLocalCaret), getLineLength(caretLine-1)-1);
setCaret(label->getTextLineOffset(caretLine-1) + offset);
} else {
setCaret(0);
}
if (shiftPressed) {
if (selectionStart == selectionEnd) {
selectionOrigin = previousCaret;
}
extendSelection(this->caret);
} else {
resetSelection();
}
} else if (key == keycode::DOWN) {
uint caret = breakSelection ? selectionEnd : this->caret;
uint caretLine = label->getLineByTextIndex(caret);
if (caretLine < label->getLinesNumber()-1) {
uint offset = std::min(size_t(maxLocalCaret), getLineLength(caretLine+1)-1);
setCaret(label->getTextLineOffset(caretLine+1) + offset);
} else {
setCaret(input.length());
}
if (shiftPressed) {
if (selectionStart == selectionEnd) {
selectionOrigin = previousCaret;
}
extendSelection(this->caret);
} else {
resetSelection();
}
}
if (Events::pressed(keycode::LEFT_CONTROL)) {
@@ -655,6 +807,7 @@ std::wstring TextBox::getText() const {
void TextBox::setText(const std::wstring value) {
this->input = value;
input.erase(std::remove(input.begin(), input.end(), '\r'), input.end());
}
std::wstring TextBox::getPlaceholder() const {
@@ -674,11 +827,21 @@ uint TextBox::getCaret() const {
}
void TextBox::setCaret(uint position) {
this->caret = position;
this->caret = std::min(size_t(position), input.length());
caretLastMove = Window::time();
int width = label->getSize().x;
int realoffset = font->calcWidth(input, caret)-int(textOffset);
uint line = label->getLineByTextIndex(caret);
int offset = label->getLineYOffset(line) + contentOffset().y;
uint lineHeight = font->getLineHeight()*label->getLineInterval();
scrollStep = lineHeight;
if (offset < 0) {
scrolled(1);
} else if (offset >= getSize().y) {
scrolled(-1);
}
uint lcaret = caret - label->getTextLineOffset(line);
int realoffset = font->calcWidth(input, lcaret)-int(textOffset)+2;
if (realoffset-width > 0) {
setTextOffset(textOffset + realoffset-width);
} else if (realoffset < 0) {