Transform the mouse coordinates to the GLSL plane

Question

I am creating a 2D map editor in C ++ with GLFW. I want move and drag entities with the mouse, but I have a problem, the mouse coords are in the window size range (1200, 720) and the entity is in the GLSL range (100x100 I think), I compare the mouse coord with the 4 entity edges. How can I do this?

PD: Sorry for bad english.

Edit:

There is the code for set position and size to entities:

model = glm::mat4(1.0f);
model = glm::translate(model, glm::vec3(translate, 0.0f));
model = glm::scale(model, glm::vec3(scale, 1.0f));

And this is the GLSL code:

#version 330

layout (location = 0) in vec2 position;
layout (location = 1) in vec2 textureCoord;

out vec2 TexCoord;

uniform mat4 model;
uniform mat4 projection;
uniform mat4 view;

void main() {
    TexCoord = textureCoord;

    gl_Position = projection * view * model * vec4(position, 1.0, 1.0);
}