Merge pull request #616 from overdev/master

[Feature Request] 9-patch drawing function

3 files changed, 108 insertions, 0 deletions

diff --git a/examples/textures/resources/ninepatch_button.png b/examples/textures/resources/ninepatch_button.png
new file mode 100644
index 00000000..d1b59970
--- /dev/null
+++ b/examples/textures/resources/ninepatch_button.png
diff --git a/examples/textures/textures_image_9patch.c b/examples/textures/textures_image_9patch.c
new file mode 100644
index 00000000..74eda6ad
--- /dev/null
+++ b/examples/textures/textures_image_9patch.c
@@ -0,0 +1,108 @@
+/*******************************************************************************************

+*

+*   raylib [textures] example - 9-patch drawing

+*

+*   NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)

+*

+*   This example has been created using raylib 2.0 (www.raylib.com)

+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)

+*

+*   Copyright (c) 2016 Ramon Santamaria (@raysan5)

+*

+********************************************************************************************/

+

+#include "raylib.h"

+

+int main()

+{

+    // Initialization

+    //--------------------------------------------------------------------------------------

+    int screenWidth = 800;

+    int screenHeight = 450;

+

+    InitWindow(screenWidth, screenHeight, "raylib [textures] example - 9-patch drawing");

+

+    // NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)

+    Texture2D nPatchTexture = LoadTexture("resources/ninepatch_button.png");

+    Vector2 mousePosition;

+    Vector2 origin = {0.0f, 0.0f};

+

+    // The location and size of the n-patches.

+    Rectangle dstRec1 = {480.0f, 160.0f, 32.0f, 32.0f};

+    Rectangle dstRec2 = {160.0f, 160.0f, 32.0f, 32.0f};

+    Rectangle dstRecH = {160.0f, 93.0f, 32.0f, 32.0f};   // this rec's height is ignored

+    Rectangle dstRecV = {92.0f, 160.0f, 32.0f, 32.0f};   // this rec's width is ignored

+

+    // A 9-patch (NPT_9PATCH) changes its sizes in both axis

+    NPatchInfo ninePatchInfo1 = {(Rectangle){0.0f, 0.0f, 64.0f, 64.0f}, 12, 40, 12, 12, NPT_9PATCH };

+    NPatchInfo ninePatchInfo2 = {(Rectangle){0.0f, 128.0f, 64.0f, 64.0f}, 16, 16, 16, 16, NPT_9PATCH };

+    // A horizontal 3-patch (NPT_3PATCH_HORIZONTAL) changes its sizes along the x axis only

+    NPatchInfo h3PatchInfo = {(Rectangle){0.0f,  64.0f, 64.0f, 64.0f}, 8, 8, 8, 8, NPT_3PATCH_HORIZONTAL };

+    // A vertical 3-patch (NPT_3PATCH_VERTICAL) changes its sizes along the y axis only

+    NPatchInfo v3PatchInfo = {(Rectangle){0.0f, 192.0f, 64.0f, 64.0f}, 6, 6, 6, 6, NPT_3PATCH_VERTICAL };

+    

+    SetTargetFPS(60);

+    //---------------------------------------------------------------------------------------

+

+    // Main game loop

+    while (!WindowShouldClose())    // Detect window close button or ESC key

+    {

+        // Update

+        //----------------------------------------------------------------------------------

+        mousePosition = GetMousePosition();

+        // resize the n-patches based on mouse position.

+        dstRec1.width = mousePosition.x - dstRec1.x;

+        dstRec1.height = mousePosition.y - dstRec1.y;

+        dstRec2.width = mousePosition.x - dstRec2.x;

+        dstRec2.height = mousePosition.y - dstRec2.y;

+        dstRecH.width = mousePosition.x - dstRecH.x;

+        dstRecV.height = mousePosition.y - dstRecV.y;

+

+        // set a minimum width and/or height

+        if (dstRec1.width < 1.0f) dstRec1.width = 1.0f;

+        if (dstRec1.width > 300.0f) dstRec1.width = 300.0f;

+        if (dstRec1.height < 1.0f) dstRec1.height = 1.0f;

+        if (dstRec2.width < 1.0f) dstRec2.width = 1.0f;

+        if (dstRec2.width > 300.0f) dstRec2.width = 300.0f;

+        if (dstRec2.height < 1.0f) dstRec2.height = 1.0f;

+        if (dstRecH.width < 1.0f) dstRecH.width = 1.0f;

+        if (dstRecV.height < 1.0f) dstRecV.height = 1.0f;

+        //----------------------------------------------------------------------------------

+

+        // Draw

+        //----------------------------------------------------------------------------------

+        BeginDrawing();

+

+            ClearBackground(RAYWHITE);

+

+            // Draw the n-patches

+            DrawTextureNPatch(nPatchTexture, ninePatchInfo2, dstRec2, origin, 0.0f, WHITE);

+            DrawTextureNPatch(nPatchTexture, ninePatchInfo1, dstRec1, origin, 0.0f, WHITE);

+            DrawTextureNPatch(nPatchTexture, h3PatchInfo, dstRecH, origin, 0.0f, WHITE);

+            DrawTextureNPatch(nPatchTexture, v3PatchInfo, dstRecV, origin, 0.0f, WHITE);

+            

+            // Draw the source texture

+            DrawRectangleLines( 5, 88, 74, 266, BLUE);

+            DrawTexture(nPatchTexture, 10, 93, WHITE);

+            DrawText("TEXTURE", 15, 360, 10, DARKGRAY);

+

+            DrawRectangle( 10, 10, 250, 73, Fade(SKYBLUE, 0.5));

+            DrawRectangleLines( 10, 10, 250, 73, BLUE);

+

+            DrawText("9-Patch and 3-Patch example", 20, 20, 10, BLACK);

+            DrawText("  Move the mouse to stretch or", 40, 40, 10, DARKGRAY);

+            DrawText("  shrink the n-patches.", 40, 60, 10, DARKGRAY);

+

+        EndDrawing();

+        //----------------------------------------------------------------------------------

+    }

+

+    // De-Initialization

+    //--------------------------------------------------------------------------------------

+    UnloadTexture(nPatchTexture);       // Texture unloading

+

+    CloseWindow();                // Close window and OpenGL context

+    //--------------------------------------------------------------------------------------

+

+    return 0;

+}

diff --git a/examples/textures/textures_image_9patch.png b/examples/textures/textures_image_9patch.png
new file mode 100644
index 00000000..5258811b
--- /dev/null
+++ b/examples/textures/textures_image_9patch.png