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/*******************************************************************************************
*
* raylib [text] example - Input Box
*
* This example has been created using raylib 1.7 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Copyright (c) 2017 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#define MAX_INPUT_CHARS 9
#if defined(PLATFORM_WEB)
#include <emscripten/emscripten.h>
#endif
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
char name[MAX_INPUT_CHARS + 1] = "\0"; // NOTE: One extra space required for line ending char '\0'
int letterCount = 0;
Rectangle textBox = { 0 };
bool mouseOnText = false;
int framesCounter = 0;
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void); // Update and Draw one frame
//----------------------------------------------------------------------------------
// Program Main Entry Point
//----------------------------------------------------------------------------------
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
InitWindow(screenWidth, screenHeight, "raylib [text] example - input box");
textBox = (Rectangle){ screenWidth/2 - 100, 180, 225, 50 };
#if defined(PLATFORM_WEB)
emscripten_set_main_loop(UpdateDrawFrame, 60, 1);
#else
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
UpdateDrawFrame();
}
#endif
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void)
{
// Update
//----------------------------------------------------------------------------------
if (CheckCollisionPointRec(GetMousePosition(), textBox)) mouseOnText = true;
else mouseOnText = false;
if (mouseOnText)
{
// Set the window's cursor to the I-Beam
SetMouseCursor(MOUSE_CURSOR_IBEAM);
// Get char pressed (unicode character) on the queue
int key = GetCharPressed();
// Check if more characters have been pressed on the same frame
while (key > 0)
{
// NOTE: Only allow keys in range [32..125]
if ((key >= 32) && (key <= 125) && (letterCount < MAX_INPUT_CHARS))
{
name[letterCount] = (char)key;
letterCount++;
}
key = GetCharPressed(); // Check next character in the queue
}
if (IsKeyPressed(KEY_BACKSPACE))
{
letterCount--;
if (letterCount < 0) letterCount = 0;
name[letterCount] = '\0';
}
}
else SetMouseCursor(MOUSE_CURSOR_DEFAULT);
if (mouseOnText) framesCounter++;
else framesCounter = 0;
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
DrawText("PLACE MOUSE OVER INPUT BOX!", 240, 140, 20, GRAY);
DrawRectangleRec(textBox, LIGHTGRAY);
if (mouseOnText) DrawRectangleLines(textBox.x, textBox.y, textBox.width, textBox.height, RED);
else DrawRectangleLines(textBox.x, textBox.y, textBox.width, textBox.height, DARKGRAY);
DrawText(name, textBox.x + 5, textBox.y + 8, 40, MAROON);
DrawText(TextFormat("INPUT CHARS: %i/%i", letterCount, MAX_INPUT_CHARS), 315, 250, 20, DARKGRAY);
if (mouseOnText)
{
if (letterCount < MAX_INPUT_CHARS)
{
// Draw blinking underscore char
if (((framesCounter/20)%2) == 0) DrawText("_", textBox.x + 8 + MeasureText(name, 40), textBox.y + 12, 40, MAROON);
}
else DrawText("Press BACKSPACE to delete chars...", 230, 300, 20, GRAY);
}
EndDrawing();
//----------------------------------------------------------------------------------
}
// Check if any key is pressed
// NOTE: We limit keys check to keys between 32 (KEY_SPACE) and 126
bool IsAnyKeyPressed()
{
bool keyPressed = false;
int key = GetKeyPressed();
if ((key >= 32) && (key <= 126)) keyPressed = true;
return keyPressed;
}
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