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130 lines
5.7 KiB
130 lines
5.7 KiB
/*******************************************************************************************
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*
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* raylib [core] example - high dpi
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*
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* Example complexity rating: [★☆☆☆] e/4
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*
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* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
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* BSD-like license that allows static linking with closed source software
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*
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* Copyright (c) 2013-2025 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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//------------------------------------------------------------------------------------
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// Module Functions Declaration
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//------------------------------------------------------------------------------------
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static void DrawTextCenter(const char *text, int x, int y, int fontSize, Color color);
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//------------------------------------------------------------------------------------
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// Program main entry point
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//------------------------------------------------------------------------------------
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int main(void)
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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const int screenWidth = 800;
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const int screenHeight = 450;
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SetConfigFlags(FLAG_WINDOW_HIGHDPI | FLAG_WINDOW_RESIZABLE);
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InitWindow(screenWidth, screenHeight, "raylib [core] example - high dpi");
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SetWindowMinSize(450, 450);
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int logicalGridDescY = 120;
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int logicalGridLabelY = logicalGridDescY + 30;
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int logicalGridTop = logicalGridLabelY + 30;
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int logicalGridBottom = logicalGridTop + 80;
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int pixelGridTop = logicalGridBottom - 20;
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int pixelGridBottom = pixelGridTop + 80;
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int pixelGridLabelY = pixelGridBottom + 30;
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int pixelGridDescY = pixelGridLabelY + 30;
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int cellSize = 50;
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float cellSizePx = (float)cellSize;
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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// Main game loop
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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// Update
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//----------------------------------------------------------------------------------
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int monitorCount = GetMonitorCount();
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if ((monitorCount > 1) && IsKeyPressed(KEY_N))
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{
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SetWindowMonitor((GetCurrentMonitor() + 1)%monitorCount);
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}
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int currentMonitor = GetCurrentMonitor();
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Vector2 dpiScale = GetWindowScaleDPI();
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cellSizePx = ((float)cellSize)/dpiScale.x;
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(RAYWHITE);
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int windowCenter = GetScreenWidth()/2;
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DrawTextCenter(TextFormat("Dpi Scale: %f", dpiScale.x), windowCenter, 30, 40, DARKGRAY);
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DrawTextCenter(TextFormat("Monitor: %d/%d ([N] next monitor)", currentMonitor+1, monitorCount), windowCenter, 70, 20, LIGHTGRAY);
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DrawTextCenter(TextFormat("Window is %d \"logical points\" wide", GetScreenWidth()), windowCenter, logicalGridDescY, 20, ORANGE);
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bool odd = true;
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for (int i = cellSize; i < GetScreenWidth(); i += cellSize, odd = !odd)
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{
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if (odd) DrawRectangle(i, logicalGridTop, cellSize, logicalGridBottom-logicalGridTop, ORANGE);
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DrawTextCenter(TextFormat("%d", i), i, logicalGridLabelY, 10, LIGHTGRAY);
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DrawLine(i, logicalGridLabelY + 10, i, logicalGridBottom, GRAY);
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}
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odd = true;
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const int minTextSpace = 30;
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int lastTextX = -minTextSpace;
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for (int i = cellSize; i < GetRenderWidth(); i += cellSize, odd = !odd)
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{
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int x = (int)(((float)i)/dpiScale.x);
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if (odd) DrawRectangle(x, pixelGridTop, (int)cellSizePx, pixelGridBottom - pixelGridTop, CLITERAL(Color){ 0, 121, 241, 100 });
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DrawLine(x, pixelGridTop, (int)(((float)i)/dpiScale.x), pixelGridLabelY - 10, GRAY);
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if ((x - lastTextX) >= minTextSpace)
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{
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DrawTextCenter(TextFormat("%d", i), x, pixelGridLabelY, 10, LIGHTGRAY);
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lastTextX = x;
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}
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}
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DrawTextCenter(TextFormat("Window is %d \"physical pixels\" wide", GetRenderWidth()), windowCenter, pixelGridDescY, 20, BLUE);
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const char *text = "Can you see this?";
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Vector2 size = MeasureTextEx(GetFontDefault(), text, 20, 3);
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Vector2 pos = (Vector2){ GetScreenWidth() - size.x - 5, GetScreenHeight() - size.y - 5 };
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DrawTextEx(GetFontDefault(), text, pos, 20, 3, LIGHTGRAY);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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}
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//------------------------------------------------------------------------------------
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// Module Functions Definition
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//------------------------------------------------------------------------------------
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static void DrawTextCenter(const char *text, int x, int y, int fontSize, Color color)
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{
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Vector2 size = MeasureTextEx(GetFontDefault(), text, (float)fontSize, 3);
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Vector2 pos = (Vector2){ x - size.x/2, y - size.y/2 };
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DrawTextEx(GetFontDefault(), text, pos, (float)fontSize, 3, color);
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}
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