mirror of
https://github.com/raysan5/raygui.git
synced 2025-12-25 10:22:33 -05:00
REVIEWED: GuiTextBox() to support cursor movement
This commit is contained in:
Ray
475
src/raygui.h
475
src/raygui.h
@ -2102,20 +2102,23 @@ bool GuiDropdownBox(Rectangle bounds, const char *text, int *active, bool editMo
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return pressed;
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}
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// Text Box control, updates input text
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// NOTE 2: Returns if KEY_ENTER pressed (useful for data validation)
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bool GuiTextBox(Rectangle bounds, char *text, int textSize, bool editMode)
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// Text Box control
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// NOTE: Returns true on ENTER pressed (useful for data validation)
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bool GuiTextBox(Rectangle bounds, char *text, int bufferSize, bool editMode)
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{
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GuiState state = guiState;
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Rectangle textBounds = GetTextBounds(TEXTBOX, bounds);
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bool pressed = false;
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int textWidth = GetTextWidth(text);
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Rectangle textBounds = GetTextBounds(TEXTBOX, bounds);
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int textWidth = GetTextWidth(text) - GetTextWidth(text + sharedCursorIndex);
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int textIndexOffset = 0; // Text index offset to start drawing in the box
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// Cursor rectangle
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// NOTE: Position X value should be updated
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Rectangle cursor = {
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bounds.x + GuiGetStyle(TEXTBOX, TEXT_PADDING) + textWidth + 2,
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bounds.x + GuiGetStyle(TEXTBOX, TEXT_PADDING) + textWidth + GuiGetStyle(DEFAULT, TEXT_SPACING),
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bounds.y + bounds.height/2 - GuiGetStyle(DEFAULT, TEXT_SIZE),
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4,
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2,
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(float)GuiGetStyle(DEFAULT, TEXT_SIZE)*2
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};
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@ -2132,39 +2135,204 @@ bool GuiTextBox(Rectangle bounds, char *text, int textSize, bool editMode)
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{
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state = STATE_PRESSED;
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int key = GetCharPressed(); // Returns codepoint as Unicode
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int keyCount = (int)strlen(text);
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int byteSize = 0;
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const char *textUTF8 = CodepointToUTF8(key, &byteSize);
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// Only allow keys in range [32..125]
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if ((keyCount + byteSize) < textSize)
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// If text does not fit in the textbox and current cursor position is out of bounds,
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// we add an index offset to text for drawing only what requires depending on cursor
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while (textWidth >= textBounds.width)
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{
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//float maxWidth = (bounds.width - (GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING)*2));
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int nextCodepointSize = 0;
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GetCodepointNext(text + textIndexOffset, &nextCodepointSize);
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if (key >= 32)
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textIndexOffset += nextCodepointSize;
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textWidth = GetTextWidth(text + textIndexOffset) - GetTextWidth(text + sharedCursorIndex);
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}
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int codepoint = GetCharPressed(); // Get Unicode codepoint
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int textLength = (int)strlen(text); // Get current text length
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// Encode codepoint as UTF-8
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int codepointSize = 0;
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const char *textUTF8 = CodepointToUTF8(codepoint, &codepointSize);
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// Add codepoint to text, at current cursor position
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// NOTE: Make sure we do not overflow buffer size
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if ((codepoint >= 32) && ((textLength + codepointSize) < bufferSize))
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{
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// Move forward data from cursor position
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for (int i = (textLength + codepointSize); i > sharedCursorIndex; i--) text[i] = text[i - 1];
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// Add new codepoint in current cursor position
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for (int i = 0; i < codepointSize; i++) text[sharedCursorIndex + i] = textUTF8[i];
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sharedCursorIndex += codepointSize;
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textLength += codepointSize;
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// Make sure text last character is EOL
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text[textLength] = '\0';
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}
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// Delete codepoint from text, at current cursor position
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if ((textLength > 0) && IsKeyPressed(KEY_BACKSPACE))
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{
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int prevCodepointSize = 0;
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GetCodepointPrevious(text + sharedCursorIndex, &prevCodepointSize);
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// Move backward text from cursor position
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for (int i = (sharedCursorIndex - prevCodepointSize); i < textLength; i++) text[i] = text[i + prevCodepointSize];
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sharedCursorIndex -= codepointSize;
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textLength -= codepointSize;
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// Make sure text last character is EOL
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text[textLength] = '\0';
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}
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// Move cursor position with keys
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if (IsKeyPressed(KEY_LEFT))
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{
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int prevCodepointSize = 0;
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GetCodepointPrevious(text + sharedCursorIndex, &prevCodepointSize);
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if (sharedCursorIndex >= prevCodepointSize) sharedCursorIndex -= prevCodepointSize;
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}
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else if (IsKeyPressed(KEY_RIGHT))
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{
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int nextCodepointSize = 0;
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GetCodepointNext(text + sharedCursorIndex, &nextCodepointSize);
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if ((sharedCursorIndex + nextCodepointSize) <= textLength) sharedCursorIndex += nextCodepointSize;
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}
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// TODO: Move cursor position with mouse
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// Recalculate cursor rectangle X position depending on sharedCursorIndex
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cursor.x = bounds.x + GuiGetStyle(TEXTBOX, TEXT_PADDING) + GetTextWidth(text + textIndexOffset) - GetTextWidth(text + sharedCursorIndex) + GuiGetStyle(DEFAULT, TEXT_SPACING);
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// Finish text editing on ENTER or mouse click outside bounds
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if (IsKeyPressed(KEY_ENTER) || (!CheckCollisionPointRec(mousePoint, bounds) && IsMouseButtonPressed(MOUSE_LEFT_BUTTON)))
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{
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// Exiting edit mode
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pressed = true;
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// GLOBAL: Reset the shared cursor index
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sharedCursorIndex = 0;
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}
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}
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else
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{
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if (CheckCollisionPointRec(mousePoint, bounds))
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{
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state = STATE_FOCUSED;
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if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
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{
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for (int i = 0; i < byteSize; i++)
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{
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text[keyCount] = textUTF8[i];
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keyCount++;
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}
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// Entering edit mode
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pressed = true;
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text[keyCount] = '\0';
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// GLOBAL: Place cursor index to the end of current text
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sharedCursorIndex = strlen(text);
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}
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}
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}
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}
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//--------------------------------------------------------------------
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// Draw control
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//--------------------------------------------------------------------
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if (state == STATE_PRESSED)
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{
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GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(TEXTBOX, BASE_COLOR_PRESSED)), guiAlpha));
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}
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else if (state == STATE_DISABLED)
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{
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GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(TEXTBOX, BASE_COLOR_DISABLED)), guiAlpha));
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}
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else GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), BLANK);
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// Draw text considering index offset if required
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// NOTE: Text index offset depends on cursor position
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GuiDrawText(text + textIndexOffset, textBounds, GuiGetStyle(TEXTBOX, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(TEXTBOX, TEXT + (state*3))), guiAlpha));
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// Draw cursor
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if (editMode) GuiDrawRectangle(cursor, 0, BLANK, Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER_COLOR_PRESSED)), guiAlpha));
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else if (state == STATE_FOCUSED) GuiTooltip(bounds);
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//--------------------------------------------------------------------
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return pressed;
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}
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// Text Box control with multiple lines
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bool GuiTextBoxMulti(Rectangle bounds, char *text, int textSize, bool editMode)
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{
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GuiState state = guiState;
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bool pressed = false;
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Rectangle textBounds = GetTextBounds(TEXTBOX, bounds);
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int textWidth = GetTextWidth(text) - GetTextWidth(text + sharedCursorIndex);
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int textIndexOffset = 0; // Text index offset to start drawing in the box
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// Cursor rectangle
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// NOTE: Position values [x, y] should be updated
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Rectangle cursor = { 0, -1, 2, (float)GuiGetStyle(DEFAULT, TEXT_SIZE) + 2 };
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// Update control
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//--------------------------------------------------------------------
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if ((state != STATE_DISABLED) && !guiLocked)
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{
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Vector2 mousePoint = GetMousePosition();
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if (editMode)
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{
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state = STATE_PRESSED;
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// We get an Unicode codepoint
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int codepoint = GetCharPressed();
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int textLength = (int)strlen(text); // Length in bytes (UTF-8 string)
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int byteSize = 0;
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const char *textUTF8 = CodepointToUTF8(codepoint, &byteSize);
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// Introduce characters
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if ((textLength + byteSize) < textSize)
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{
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if (IsKeyPressed(KEY_ENTER))
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{
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text[textLength] = '\n';
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textLength++;
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}
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else if (codepoint >= 32)
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{
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// Supports Unicode inputs -> Encoded to UTF-8
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int charUTF8Length = 0;
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const char *charEncoded = CodepointToUTF8(codepoint, &charUTF8Length);
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memcpy(text + textLength, charEncoded, charUTF8Length);
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textLength += charUTF8Length;
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}
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}
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// Delete text
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if (keyCount > 0)
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// Delete characters
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if (textLength > 0)
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{
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if (IsKeyPressed(KEY_BACKSPACE))
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{
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while ((keyCount > 0) && ((text[--keyCount] & 0xc0) == 0x80));
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text[keyCount] = '\0';
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if ((unsigned char)text[textLength - 1] < 127)
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{
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// Remove ASCII equivalent character (1 byte)
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textLength--;
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text[textLength] = '\0';
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}
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else
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{
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// Remove latest UTF-8 unicode character introduced (n bytes)
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int charUTF8Length = 0;
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while ((charUTF8Length < textLength) && ((unsigned char)text[textLength - 1 - charUTF8Length] & 0b01000000) == 0) charUTF8Length++;
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textLength -= (charUTF8Length + 1);
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text[textLength] = '\0';
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}
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}
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}
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if (IsKeyPressed(KEY_ENTER) || (!CheckCollisionPointRec(mousePoint, bounds) && IsMouseButtonPressed(MOUSE_LEFT_BUTTON))) pressed = true;
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// Exit edit mode
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if (!CheckCollisionPointRec(mousePoint, bounds) && IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) pressed = true;
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}
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else
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{
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@ -2188,26 +2356,76 @@ bool GuiTextBox(Rectangle bounds, char *text, int textSize, bool editMode)
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GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(TEXTBOX, BASE_COLOR_DISABLED)), guiAlpha));
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}
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else GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), BLANK);
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if (editMode)
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// Draw text logic
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int wrapMode = 1; // 0-No wrap, 1-Char wrap, 2-Word wrap
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Vector2 cursorPos = { textBounds.x, textBounds.y };
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float scaleFactor = (float)GuiGetStyle(DEFAULT, TEXT_SIZE)/(float)guiFont.baseSize; // Character rectangle scaling factor
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for (int i = 0, codepointSize = 0; (text != NULL) && (text[i] != '\0'); i += codepointSize)
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{
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// In case we edit and text does not fit in the textbox,
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// we move text pointer to a position it fits inside the text box
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while ((textWidth >= textBounds.width) && (text[0] != '\0'))
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int codepoint = GetCodepointNext(text + i, &codepointSize);
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int index = GetGlyphIndex(guiFont, codepoint); // If requested codepoint is not found, we get '?' (0x3f)
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Rectangle atlasRec = guiFont.recs[index];
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GlyphInfo glyphInfo = guiFont.glyphs[index]; // Glyph measures
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if ((codepointSize == 1) && (codepoint == '\n'))
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{
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int codepointSize = 0;
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GetCodepointNext(text, &codepointSize);
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text += codepointSize;
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textWidth = GetTextWidth(text);
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cursor.x = textBounds.x + textWidth + 2;
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cursorPos.y += (guiFont.baseSize*scaleFactor + GuiGetStyle(TEXTBOX, TEXT_LINES_SPACING)); // Line feed
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cursorPos.x = textBounds.x; // Carriage return
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}
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else
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{
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if (wrapMode == 1)
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{
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int glyphWidth = 0;
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if (glyphInfo.advanceX != 0) glyphWidth += glyphInfo.advanceX;
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else glyphWidth += (int)(atlasRec.width + glyphInfo.offsetX);
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// Jump line if the end of the text box area has been reached
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if ((cursorPos.x + (glyphWidth*scaleFactor)) > (textBounds.x + textBounds.width))
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{
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cursorPos.y += (guiFont.baseSize*scaleFactor + GuiGetStyle(TEXTBOX, TEXT_LINES_SPACING)); // Line feed
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cursorPos.x = textBounds.x; // Carriage return
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}
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}
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else if (wrapMode == 2)
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{
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/*
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if ((codepointSize == 1) && (codepoint == ' '))
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{
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lastSpacePos = i;
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lastSpaceWidth = 0;
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lastSpaceCursorPos = cursorPos.x;
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}
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// Jump line if last word reaches end of text box area
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if ((lastSpaceCursorPos + lastSpaceWidth) > (textAreaBounds.x + textAreaBounds.width))
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{
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cursorPos.y += 12; // Line feed
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cursorPos.x = textAreaBounds.x; // Carriage return
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}
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*/
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}
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// Draw current character glyph
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DrawTextCodepoint(guiFont, codepoint, cursorPos, (float)GuiGetStyle(DEFAULT, TEXT_SIZE), Fade(GetColor(GuiGetStyle(TEXTBOX, TEXT + (state*3))), guiAlpha));
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int glyphWidth = 0;
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if (glyphInfo.advanceX != 0) glyphWidth += glyphInfo.advanceX;
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else glyphWidth += (int)(atlasRec.width + glyphInfo.offsetX);
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cursorPos.x += (glyphWidth*scaleFactor + (float)GuiGetStyle(DEFAULT, TEXT_SPACING));
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//if (i > lastSpacePos) lastSpaceWidth += (atlasRec.width + (float)GuiGetStyle(DEFAULT, TEXT_SPACING));
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}
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}
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GuiDrawText(text, textBounds, GuiGetStyle(TEXTBOX, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(TEXTBOX, TEXT + (state*3))), guiAlpha));
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cursor.x = cursorPos.x;
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cursor.y = cursorPos.y;
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// Draw cursor
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// Draw cursor position considering text glyphs
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if (editMode) GuiDrawRectangle(cursor, 0, BLANK, Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER_COLOR_PRESSED)), guiAlpha));
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else if (state == STATE_FOCUSED) GuiTooltip(bounds);
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//--------------------------------------------------------------------
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return pressed;
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@ -2399,182 +2617,6 @@ bool GuiValueBox(Rectangle bounds, const char *text, int *value, int minValue, i
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return pressed;
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}
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// Text Box control with multiple lines
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bool GuiTextBoxMulti(Rectangle bounds, char *text, int textSize, bool editMode)
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{
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GuiState state = guiState;
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bool pressed = false;
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Rectangle textAreaBounds = {
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bounds.x + GuiGetStyle(TEXTBOX, BORDER_WIDTH) + GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING),
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bounds.y + GuiGetStyle(TEXTBOX, BORDER_WIDTH) + GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING),
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bounds.width - 2*(GuiGetStyle(TEXTBOX, BORDER_WIDTH) + GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING)),
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bounds.height - 2*(GuiGetStyle(TEXTBOX, BORDER_WIDTH) + GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING))
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};
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// Cursor position, [x, y] values should be updated
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Rectangle cursor = { 0, -1, 4, (float)GuiGetStyle(DEFAULT, TEXT_SIZE) + 2 };
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float scaleFactor = (float)GuiGetStyle(DEFAULT, TEXT_SIZE)/(float)guiFont.baseSize; // Character rectangle scaling factor
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// Update control
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//--------------------------------------------------------------------
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if ((state != STATE_DISABLED) && !guiLocked)
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{
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Vector2 mousePoint = GetMousePosition();
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if (editMode)
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{
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state = STATE_PRESSED;
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// We get an Unicode codepoint
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int codepoint = GetCharPressed();
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int textLength = (int)strlen(text); // Length in bytes (UTF-8 string)
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int byteSize = 0;
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const char *textUTF8 = CodepointToUTF8(codepoint, &byteSize);
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// Introduce characters
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if ((textLength + byteSize) < textSize)
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{
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if (IsKeyPressed(KEY_ENTER))
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{
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text[textLength] = '\n';
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textLength++;
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}
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else if (codepoint >= 32)
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{
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// Supports Unicode inputs -> Encoded to UTF-8
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int charUTF8Length = 0;
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const char *charEncoded = CodepointToUTF8(codepoint, &charUTF8Length);
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memcpy(text + textLength, charEncoded, charUTF8Length);
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textLength += charUTF8Length;
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}
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}
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// Delete characters
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if (textLength > 0)
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{
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if (IsKeyPressed(KEY_BACKSPACE))
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{
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if ((unsigned char)text[textLength - 1] < 127)
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{
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// Remove ASCII equivalent character (1 byte)
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textLength--;
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text[textLength] = '\0';
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}
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else
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{
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// Remove latest UTF-8 unicode character introduced (n bytes)
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int charUTF8Length = 0;
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while ((charUTF8Length < textLength) && ((unsigned char)text[textLength - 1 - charUTF8Length] & 0b01000000) == 0) charUTF8Length++;
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textLength -= (charUTF8Length + 1);
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text[textLength] = '\0';
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}
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}
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}
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// Exit edit mode
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if (!CheckCollisionPointRec(mousePoint, bounds) && IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) pressed = true;
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}
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else
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{
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if (CheckCollisionPointRec(mousePoint, bounds))
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{
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state = STATE_FOCUSED;
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if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) pressed = true;
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}
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}
|
||||
}
|
||||
//--------------------------------------------------------------------
|
||||
|
||||
// Draw control
|
||||
//--------------------------------------------------------------------
|
||||
if (state == STATE_PRESSED)
|
||||
{
|
||||
GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(TEXTBOX, BASE_COLOR_PRESSED)), guiAlpha));
|
||||
}
|
||||
else if (state == STATE_DISABLED)
|
||||
{
|
||||
GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(TEXTBOX, BASE_COLOR_DISABLED)), guiAlpha));
|
||||
}
|
||||
else GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), BLANK);
|
||||
|
||||
int wrapMode = 1; // 0-No wrap, 1-Char wrap, 2-Word wrap
|
||||
Vector2 cursorPos = { textAreaBounds.x, textAreaBounds.y };
|
||||
|
||||
//int lastSpacePos = 0;
|
||||
//int lastSpaceWidth = 0;
|
||||
//int lastSpaceCursorPos = 0;
|
||||
|
||||
for (int i = 0, codepointSize = 0; (text != NULL) && (text[i] != '\0'); i += codepointSize)
|
||||
{
|
||||
int codepoint = GetCodepointNext(text + i, &codepointSize);
|
||||
int index = GetGlyphIndex(guiFont, codepoint); // If requested codepoint is not found, we get '?' (0x3f)
|
||||
Rectangle atlasRec = guiFont.recs[index];
|
||||
GlyphInfo glyphInfo = guiFont.glyphs[index]; // Glyph measures
|
||||
|
||||
if ((codepointSize == 1) && (codepoint == '\n'))
|
||||
{
|
||||
cursorPos.y += (guiFont.baseSize*scaleFactor + GuiGetStyle(TEXTBOX, TEXT_LINES_SPACING)); // Line feed
|
||||
cursorPos.x = textAreaBounds.x; // Carriage return
|
||||
}
|
||||
else
|
||||
{
|
||||
if (wrapMode == 1)
|
||||
{
|
||||
int glyphWidth = 0;
|
||||
if (glyphInfo.advanceX != 0) glyphWidth += glyphInfo.advanceX;
|
||||
else glyphWidth += (int)(atlasRec.width + glyphInfo.offsetX);
|
||||
|
||||
// Jump line if the end of the text box area has been reached
|
||||
if ((cursorPos.x + (glyphWidth*scaleFactor)) > (textAreaBounds.x + textAreaBounds.width))
|
||||
{
|
||||
cursorPos.y += (guiFont.baseSize*scaleFactor + GuiGetStyle(TEXTBOX, TEXT_LINES_SPACING)); // Line feed
|
||||
cursorPos.x = textAreaBounds.x; // Carriage return
|
||||
}
|
||||
}
|
||||
else if (wrapMode == 2)
|
||||
{
|
||||
/*
|
||||
if ((codepointSize == 1) && (codepoint == ' '))
|
||||
{
|
||||
lastSpacePos = i;
|
||||
lastSpaceWidth = 0;
|
||||
lastSpaceCursorPos = cursorPos.x;
|
||||
}
|
||||
|
||||
// Jump line if last word reaches end of text box area
|
||||
if ((lastSpaceCursorPos + lastSpaceWidth) > (textAreaBounds.x + textAreaBounds.width))
|
||||
{
|
||||
cursorPos.y += 12; // Line feed
|
||||
cursorPos.x = textAreaBounds.x; // Carriage return
|
||||
}
|
||||
*/
|
||||
}
|
||||
|
||||
// Draw current character glyph
|
||||
DrawTextCodepoint(guiFont, codepoint, cursorPos, (float)GuiGetStyle(DEFAULT, TEXT_SIZE), Fade(GetColor(GuiGetStyle(TEXTBOX, TEXT + (state*3))), guiAlpha));
|
||||
|
||||
int glyphWidth = 0;
|
||||
if (glyphInfo.advanceX != 0) glyphWidth += glyphInfo.advanceX;
|
||||
else glyphWidth += (int)(atlasRec.width + glyphInfo.offsetX);
|
||||
|
||||
cursorPos.x += (glyphWidth*scaleFactor + (float)GuiGetStyle(DEFAULT, TEXT_SPACING));
|
||||
//if (i > lastSpacePos) lastSpaceWidth += (atlasRec.width + (float)GuiGetStyle(DEFAULT, TEXT_SPACING));
|
||||
}
|
||||
}
|
||||
|
||||
cursor.x = cursorPos.x;
|
||||
cursor.y = cursorPos.y;
|
||||
|
||||
// Draw cursor position considering text glyphs
|
||||
if (editMode) GuiDrawRectangle(cursor, 0, BLANK, Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER_COLOR_PRESSED)), guiAlpha));
|
||||
//--------------------------------------------------------------------
|
||||
|
||||
return pressed;
|
||||
}
|
||||
|
||||
// Slider control with pro parameters
|
||||
// NOTE: Other GuiSlider*() controls use this one
|
||||
float GuiSliderPro(Rectangle bounds, const char *textLeft, const char *textRight, float value, float minValue, float maxValue, int sliderWidth)
|
||||
@ -3911,7 +3953,6 @@ static Rectangle GetTextBounds(int control, Rectangle bounds)
|
||||
{
|
||||
if (GuiGetStyle(control, TEXT_ALIGNMENT) == TEXT_ALIGN_RIGHT) textBounds.x -= GuiGetStyle(control, TEXT_PADDING);
|
||||
else textBounds.x += GuiGetStyle(control, TEXT_PADDING);
|
||||
textBounds.width -= 2 * GuiGetStyle(control, TEXT_PADDING);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user